Category Archives: JAVA

[Solved] Tk-Mybatis Error: tk.mybatis.mapper.MapperException:

java.lang.ClassCastException: sun.reflect.generics.r

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tkMapper' defined in file [E:\MicroServer-Mall\ez-compose\target\classes\com\bo\dal\persistence\TkMapper.class]: Invocation of init method failed; nested exception is tk.mybatis.mapper.MapperException: tk.mybatis.mapper.MapperException: java.lang.ClassCastException: sun.reflect.generics.reflectiveObjects.TypeVariableImpl cannot be cast to java.lang.Class
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1769) ~[spring-beans-5.1.18.RELEASE.jar:5.1.18.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592) ~[spring-beans-5.1.18.RELEASE.jar:5.1.18.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:514) ~[spring-beans-5.1.18.RELEASE.jar:5.1.18.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:321) ~[spring-beans-5.1.18.RELEASE.jar:5.1.18.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.1.18.RELEASE.jar:5.1.18.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:319) ~[spring-beans-5.1.18.RELEASE.jar:5.1.18.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.18.RELEASE.jar:5.1.18.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:847) ~[spring-beans-5.1.18.RELEASE.jar:5.1.18.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) ~[spring-context-5.1.18.RELEASE.jar:5.1.18.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.1.18.RELEASE.jar:5.1.18.RELEASE]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.1.17.RELEASE.jar:2.1.17.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:744) [spring-boot-2.1.17.RELEASE.jar:2.1.17.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:391) [spring-boot-2.1.17.RELEASE.jar:2.1.17.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) [spring-boot-2.1.17.RELEASE.jar:2.1.17.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.1.17.RELEASE.jar:2.1.17.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) [spring-boot-2.1.17.RELEASE.jar:2.1.17.RELEASE]
	at com.bo.bootstrap.ComposeApplication.main(ComposeApplication.java:16) [classes/:na]
Caused by: tk.mybatis.mapper.MapperException: tk.mybatis.mapper.MapperException: java.lang.ClassCastException: sun.reflect.generics.reflectiveObjects.TypeVariableImpl cannot be cast to java.lang.Class
	at tk.mybatis.mapper.mapperhelper.MapperHelper.setSqlSource(MapperHelper.java:378) ~[mapper-core-1.1.5.jar:na]
	at tk.mybatis.mapper.mapperhelper.MapperHelper.processMappedStatement(MapperHelper.java:297) ~[mapper-core-1.1.5.jar:na]
	at tk.mybatis.mapper.mapperhelper.MapperHelper.processConfiguration(MapperHelper.java:283) ~[mapper-core-1.1.5.jar:na]
	at tk.mybatis.spring.mapper.MapperFactoryBean.checkDaoConfig(MapperFactoryBean.java:93) ~[mapper-spring-1.1.5.jar:na]
	at org.springframework.dao.support.DaoSupport.afterPropertiesSet(DaoSupport.java:44) ~[spring-tx-5.1.18.RELEASE.jar:5.1.18.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1828) ~[spring-beans-5.1.18.RELEASE.jar:5.1.18.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1765) ~[spring-beans-5.1.18.RELEASE.jar:5.1.18.RELEASE]
	... 16 common frames omitted
Caused by: tk.mybatis.mapper.MapperException: java.lang.ClassCastException: sun.reflect.generics.reflectiveObjects.TypeVariableImpl cannot be cast to java.lang.Class
	at tk.mybatis.mapper.mapperhelper.MapperTemplate.setSqlSource(MapperTemplate.java:256) ~[mapper-core-1.1.5.jar:na]
	at tk.mybatis.mapper.mapperhelper.MapperHelper.setSqlSource(MapperHelper.java:375) ~[mapper-core-1.1.5.jar:na]
	... 22 common frames omitted
Caused by: java.lang.ClassCastException: sun.reflect.generics.reflectiveObjects.TypeVariableImpl cannot be cast to java.lang.Class
	at tk.mybatis.mapper.mapperhelper.MapperTemplate.getEntityClass(MapperTemplate.java:170) ~[mapper-core-1.1.5.jar:na]
	at tk.mybatis.mapper.provider.base.BaseInsertProvider.insertSelective(BaseInsertProvider.java:84) ~[mapper-base-1.1.5.jar:na]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_111]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_111]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_111]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_111]
	at tk.mybatis.mapper.mapperhelper.MapperTemplate.setSqlSource(MapperTemplate.java:246) ~[mapper-core-1.1.5.jar:na]
	... 23 common frames omitted

The error information is as above, and the reason is as follows:

Customized HomePageMapper inherits TkMapper, TkMapper inherits Mapper, and an error is reported.

Delete TkMapper and let the customized HomePageMapper inherit Mapper directly. I haven’t figured out the cause of the problem yet.

[Solved] IDEA Compile Error: java: Compilation failed: internal java compiler error

Compilation error: java: compilation failed: internal java compiler error

Reason: the project is too large and the memory is not enough. Increase the shared build process heap size, initially 700, now 1500

[Solved] JAVA OpenCV Startup Error: java.lang.UnsatisfiedLinkError

About using OpenCV for image processing and image recognition technology,

there are few examples involving Java.
after introducing lib and DLL according to online operations, an error Java is reported Lang.unsatisfiedlinkerror
Someone said they would add system loadLibrary(Core.NATIVE_LIBRARY_NAME); Otherwise, it will report an error java Lang.unsatisfiedlinkerror
but it still report error: java.lang.UnsatisfiedLinkError

Solution: (my operating system is windows64 bit)
Copy the downloaded dll file under opencv\build\java\x64 to C:\Windows\System32

then go to idea to start the main method, and there will be no errors.

[Solved] nested exception is org.flowable.common.engine.api.FlowableException: Error initialising dmn data mo

FactoryBean threw exception on object creation; nested exception is org.flowable.common.engine.api.FlowableException: Error initialising dmn data model

The following error is reported when starting a project inherited from Flowable and Spring Boot:

05.824 INFO  o.f.s.SpringProcessEngineConfiguration:922  main                    Executing configure() of class org.flowable.dmn.spring.configurator.SpringDmnEngineConfigurator (priority:200000)
09.818 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
19.821 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
29.825 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
39.835 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
49.851 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
59.859 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
09.864 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
19.879 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
29.894 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
39.907 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
49.911 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
59.930 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
09.939 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
19.944 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
29.966 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
39.975 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
49.989 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
00.000 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
10.013 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
20.022 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
30.035 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
40.052 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
50.058 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
00.065 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
10.075 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
20.078 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
30.097 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
40.114 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
50.129 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
00.142 INFO  liquibase.lockservice         :26   main                    Waiting for changelog lock....
10.377 WARN  o.s.b.w.s.c.AnnotationConfigServletWebServerApplicationContext:591  main                    Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'appletLeaveController': Unsatisfied dependency expressed through field 'leaveService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'appletLeaveServiceImpl': Unsatisfied dependency expressed through field 'flowableProcessInstanceService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'flowableProcessInstanceServiceImpl': Unsatisfied dependency expressed through field 'historyService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'historyServiceBean' defined in class path resource [org/flowable/spring/boot/ProcessEngineServicesAutoConfiguration.class]: Unsatisfied dependency expressed through method 'historyServiceBean' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processEngine': FactoryBean threw exception on object creation; nested exception is org.flowable.common.engine.api.FlowableException: Error initialising dmn data model
10.572 INFO  c.a.druid.pool.DruidDataSource:2071 main                    {dataSource-1} closing ...
10.638 INFO  c.a.druid.pool.DruidDataSource:2144 main                    {dataSource-1} closed
10.697 INFO  o.a.c.core.StandardService    :173  main                    Stopping service [Tomcat]
10.981 ERROR o.s.boot.SpringApplication    :830  main                    Application run failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'appletLeaveController': Unsatisfied dependency expressed through field 'leaveService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'appletLeaveServiceImpl': Unsatisfied dependency expressed through field 'flowableProcessInstanceService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'flowableProcessInstanceServiceImpl': Unsatisfied dependency expressed through field 'historyService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'historyServiceBean' defined in class path resource [org/flowable/spring/boot/ProcessEngineServicesAutoConfiguration.class]: Unsatisfied dependency expressed through method 'historyServiceBean' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processEngine': FactoryBean threw exception on object creation; nested exception is org.flowable.common.engine.api.FlowableException: Error initialising dmn data model
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:659)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:639)
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:953)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:740)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:415)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
	at com.sinosoft.MobileAppletBusinessApplication.main(MobileAppletBusinessApplication.java:32)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'appletLeaveServiceImpl': Unsatisfied dependency expressed through field 'flowableProcessInstanceService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'flowableProcessInstanceServiceImpl': Unsatisfied dependency expressed through field 'historyService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'historyServiceBean' defined in class path resource [org/flowable/spring/boot/ProcessEngineServicesAutoConfiguration.class]: Unsatisfied dependency expressed through method 'historyServiceBean' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processEngine': FactoryBean threw exception on object creation; nested exception is org.flowable.common.engine.api.FlowableException: Error initialising dmn data model
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:659)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:639)
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1389)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:656)
	... 18 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'flowableProcessInstanceServiceImpl': Unsatisfied dependency expressed through field 'historyService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'historyServiceBean' defined in class path resource [org/flowable/spring/boot/ProcessEngineServicesAutoConfiguration.class]: Unsatisfied dependency expressed through method 'historyServiceBean' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processEngine': FactoryBean threw exception on object creation; nested exception is org.flowable.common.engine.api.FlowableException: Error initialising dmn data model
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:659)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:639)
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1389)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:656)
	... 32 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'historyServiceBean' defined in class path resource [org/flowable/spring/boot/ProcessEngineServicesAutoConfiguration.class]: Unsatisfied dependency expressed through method 'historyServiceBean' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processEngine': FactoryBean threw exception on object creation; nested exception is org.flowable.common.engine.api.FlowableException: Error initialising dmn data model
	at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800)
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:541)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1389)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:656)
	... 46 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processEngine': FactoryBean threw exception on object creation; nested exception is org.flowable.common.engine.api.FlowableException: Error initialising dmn data model
	at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:176)
	at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:101)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1884)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getObjectForBeanInstance(AbstractAutowireCapableBeanFactory.java:1284)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:345)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1389)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309)
	at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887)
	at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791)
	... 59 common frames omitted
Caused by: org.flowable.common.engine.api.FlowableException: Error initialising dmn data model
	at org.flowable.common.engine.impl.db.LiquibaseBasedSchemaManager.initSchema(LiquibaseBasedSchemaManager.java:68)
	at org.flowable.dmn.engine.impl.db.DmnDbSchemaManager.initSchema(DmnDbSchemaManager.java:36)
	at org.flowable.dmn.engine.impl.cmd.SchemaOperationsDmnEngineBuild.execute(SchemaOperationsDmnEngineBuild.java:27)
	at org.flowable.dmn.engine.impl.cmd.SchemaOperationsDmnEngineBuild.execute(SchemaOperationsDmnEngineBuild.java:23)
	at org.flowable.common.engine.impl.interceptor.DefaultCommandInvoker.execute(DefaultCommandInvoker.java:22)
	at org.flowable.common.engine.impl.interceptor.TransactionContextInterceptor.execute(TransactionContextInterceptor.java:53)
	at org.flowable.common.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:72)
	at org.flowable.common.spring.SpringTransactionInterceptor.lambda$execute$0(SpringTransactionInterceptor.java:56)
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140)
	at org.flowable.common.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:56)
	at org.flowable.common.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.flowable.common.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:56)
	at org.flowable.dmn.engine.impl.DmnEngineImpl.<init>(DmnEngineImpl.java:48)
	at org.flowable.dmn.engine.DmnEngineConfiguration.buildDmnEngine(DmnEngineConfiguration.java:217)
	at org.flowable.dmn.spring.SpringDmnEngineConfiguration.buildDmnEngine(SpringDmnEngineConfiguration.java:69)
	at org.flowable.dmn.spring.configurator.SpringDmnEngineConfigurator.initDmnEngine(SpringDmnEngineConfigurator.java:68)
	at org.flowable.dmn.spring.configurator.SpringDmnEngineConfigurator.configure(SpringDmnEngineConfigurator.java:57)
	at org.flowable.common.engine.impl.AbstractEngineConfiguration.configuratorsAfterInit(AbstractEngineConfiguration.java:923)
	at org.flowable.engine.impl.cfg.ProcessEngineConfigurationImpl.init(ProcessEngineConfigurationImpl.java:1016)
	at org.flowable.engine.impl.cfg.ProcessEngineConfigurationImpl.buildProcessEngine(ProcessEngineConfigurationImpl.java:915)
	at org.flowable.spring.SpringProcessEngineConfiguration.buildProcessEngine(SpringProcessEngineConfiguration.java:72)
	at org.flowable.spring.ProcessEngineFactoryBean.getObject(ProcessEngineFactoryBean.java:60)
	at org.flowable.spring.ProcessEngineFactoryBean.getObject(ProcessEngineFactoryBean.java:32)
	at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:169)
	... 69 common frames omitted
Caused by: org.flowable.common.engine.api.FlowableException: Error updating dmn engine tables
	at org.flowable.common.engine.impl.db.LiquibaseBasedSchemaManager.schemaUpdate(LiquibaseBasedSchemaManager.java:105)
	at org.flowable.common.engine.impl.db.LiquibaseBasedSchemaManager.initSchema(LiquibaseBasedSchemaManager.java:61)
	... 92 common frames omitted
Caused by: liquibase.exception.LockException: Could not acquire change log lock.  Currently locked by DESKTOP-T9LSH1H (192.168.1.108) since 22-6-15 上午9:27
	at liquibase.lockservice.StandardLockService.waitForLock(StandardLockService.java:234)
	at liquibase.Liquibase.lambda$update$1(Liquibase.java:214)
	at liquibase.Scope.lambda$child$0(Scope.java:177)
	at liquibase.Scope.child(Scope.java:186)
	at liquibase.Scope.child(Scope.java:176)
	at liquibase.Scope.child(Scope.java:155)
	at liquibase.Liquibase.runInScope(Liquibase.java:2404)
	at liquibase.Liquibase.update(Liquibase.java:211)
	at liquibase.Liquibase.update(Liquibase.java:197)
	at liquibase.Liquibase.update(Liquibase.java:193)
	at liquibase.Liquibase.update(Liquibase.java:185)
	at org.flowable.common.engine.impl.db.LiquibaseBasedSchemaManager.schemaUpdate(LiquibaseBasedSchemaManager.java:103)
	... 93 common frames omitted

Process finished with exit code 1

After investigation, it was found that the problem was MySQL

Solution: find a table whose table name is suffixed with databasechangeloglock and change it to the format shown in the following figure to solve the problem

Note: all tables suffixed with databasechangeloglock should be checked

[Solved] Crypto-JS Failed to Decrypt Error: Uncaught Error: Malformed UTF-8 data

java encrypt js decrypt, an error is reported: Uncaught Error: Malformed UTF-8 data

public static String encrypt(String strToEncrypt, SecretKey secretKey) {
    try {
      Cipher cipher = Cipher.getInstance("AES/ECB/PKCS7PADDING");
      cipher.init(Cipher.ENCRYPT_MODE, secretKey);
      encryptedString = new String(Base64.encodeBase64String(cipher.doFinal(strToEncrypt.getBytes())));
    } catch (Exception e) {
      System.out.println("Error while encrypting: " + e.toString());
    }

    return encryptedString;
  }

JS:

decrypt(secret_key，code) {
        return CryptoJS.AES.decrypt(code, this.parse(secret_key), {
          mode: CryptoJS.mode.ECB,
          padding: CryptoJS.pad.Pkcs7
        }).toString(CryptoJS.enc.Utf8);
      }

The reason is that the string has a newline character, Base64 generates a newline, change to NO_WRAP

 Base64.encodeBase64String(hashPassword,Base64.NO_WRAP)

How to Solve Error: Maven ‘parent.relativePath‘ of POM…

[Solved] IDEA JPA Custome Query Error: Can‘t resolve symbol ‘Type‘

[Solved] Java Run Error: For input string: “XXX”

Background

Today, a small partner of front-end joint commissioning said that an interface reported an error.

I first glanced at the code and found no problem.

First post the code of the place where the error is reported

...
IntegralRecord integralRecord = new IntegralRecord();
integralRecord.setUid(uid);
integralRecord.setLinkType(IntegralRecordConstants.TYPE_SIGN);
integralRecord.setTitle(IntegralRecordConstants.INTEGRAL_TASK);
integralRecord.setIntegral(Integer.parseInt(amount));
integralRecord.setStatus(1);
integralRecord.setType(IntegralRecordConstants.TYPE_ADD); 
integralRecord.setMark(StrUtil.format("Free {} points for completing tasks", amount));
userIntegralRecordService.save(integralRecord);
...

Problem location
There is no choice but to debugger a line to run.

After running to

integralRecord.setIntegral(Integer.parseInt(amount));

This line, then reported an error message For input string.

This line of code, when I look at it, just does a conversion operation on the type.

Is there something wrong with the passed data?

I ran it again and found that amount=2.00

Explanation: Because the amount is shared by several places, considering that there may be a decimal situation, a String is used in the front-end pass, and the back-end uses the corresponding type for conversion according to the actual situation.

When converting, it is indeed this line that has a problem.

The specific test situation is shown below:

Then we changed it to

amount=”2″

The results are as follows

Then the problem can be defined because integer cannot recognize the case with decimals during conversion.

Problem follow up

Integer.parseInt source code

We found that parseInt finally called the following code.

public static int parseInt(String s, int radix) throws NumberFormatException{

        if (s == null) {
            throw new NumberFormatException("null");
        }

        if (radix < Character.MIN_RADIX) {
            throw new NumberFormatException("radix " + radix +
                                            " less than Character.MIN_RADIX");
        }

        if (radix > Character.MAX_RADIX) {
            throw new NumberFormatException("radix " + radix +
                                            " greater than Character.MAX_RADIX");
        }

        boolean negative = false;
        int i = 0, len = s.length();
        int limit = -Integer.MAX_VALUE;

        if (len > 0) {
            char firstChar = s.charAt(0);
            if (firstChar < '0') { // Possible leading "+" or "-"
                if (firstChar == '-') {
                    negative = true;
                    limit = Integer.MIN_VALUE;
                } else if (firstChar != '+') {
                    throw NumberFormatException.forInputString(s);
                }

                if (len == 1) { // Cannot have lone "+" or "-"
                    throw NumberFormatException.forInputString(s);
                }
                i++;
            }
            int multmin = limit/radix;
            int result = 0;
            while (i < len) {
                int digit = Character.digit(s.charAt(i++), radix);
                if (digit < 0 || result < multmin) {
                    throw NumberFormatException.forInputString(s);
                }
                result *= radix;
                if (result < limit + digit) {
                    throw NumberFormatException.forInputString(s);
                }
                result -= digit;
            }
            return negative ?result : -result;
        } else {
            throw NumberFormatException.forInputString(s);
        }
    }

Source code positioning

In the code, we can see that an error will be reported if the range is no longer specified

int digit = Character.digit(s.charAt(i++), radix);
  if (digit < 0 || result < multmin) {
    throw NumberFormatException.forInputString(s);
}

java.lang.Character.digit(char ch, int radix) method :

Returns the value of the character ch in the specified base, if the base is not in the range MIN_RADIX ≤ base ≤ MAX_RADIX or if the value of the channel is not a valid number in the specified base -1, then it is returned.

The value of radix is 10, this is because the conversion Int type is when the single character 0~9.

So if the value is not a number between 0~9 an error will be reported.

The exception thrown is forInputString.

Solution:
String interception
In this example, it is clear that only the integer part is needed, so you can specify the character “.” based on the to intercept.

Then you can convert it and it’s done.

Borrowing from a third party
Here we recommend using the NumberUtil from the hutool toolkit

You can convert similar numbers directly.

Method: NumberUtil.parseInt

 String val ="2.00";
 int i = NumberUtil.parseInt(val);

Type conversion

Because it can be determined that the value must be of numerical type.

So it can be directly converted to BigDecimal type.

BigDecimal has an intValue method, which can be called after direct conversion

 String val ="2.00";
 int i = new BigDecimal(val).intValue();

[Solved] itextpdf Read PDF File Error: Rebuild failed: trailer not found.

Recently, I used itextpdf to print invoices, but there was an error when reading the file stream. The following is the key code

ClassPathResource classPathResource = new ClassPathResource("/template/RU_HK_INVOICE_TEMPLATE.pdf");
InputStream inputStream = classPathResource.getInputStream();
reader = new PdfReader(inputStream);// read the template of pdf

The following errors are reported in the new PdfReader(inputStream) each time:

com.itextpdf.text.exceptions.InvalidPdfException: Rebuild failed: trailer not found.; Original message: xref subsection not found at file pointer

Maven will use pom XML configuration files uniformly encode the project, but some files do not need to be re encoded, such as PDF template files; After recoding, the PDF template structure may be damaged, resulting in the unavailability of the files generated after compilation, as shown in the following figure

Therefore, it is necessary to filter out the files that do not need to be encoded: filter all files with the suffix .pdf or .p8 and do not encode them uniformly. Need to be configured in the pom.xml file nonFilteredFileExtension tag

<!-- Filter the suffixes of files that do not need to be transcoded pdf -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <version>3.0.1</version>
                <configuration>
                    <encoding>UTF-8</encoding>
                    <useDefaultDelimiters>false</useDefaultDelimiters>
                    <nonFilteredFileExtensions>
 						<nonFilteredFileExtension>pdf</nonFilteredFileExtension>
                    </nonFilteredFileExtensions>
                </configuration>
            </plugin>

[Solved] Tomcat Startup Error: A child container failed during start、LifecycleException: Failed to start component

An error is reported when Tomcat is started. The error contents are as follows

WARNING: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]]
	at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
	at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
	at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:302)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:732)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.startup.Tomcat.start(Tomcat.java:341)
	at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.startContainer(AbstractRunMojo.java:1238)
	at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.execute(AbstractRunMojo.java:592)
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:210)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:156)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)
	at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56)
	at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105)
	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:972)
	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:293)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:196)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225)
	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406)
	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347)
	at org.codehaus.classworlds.Launcher.main(Launcher.java:47)

The code change adds the following servlet dependency, and it starts successfully if you remove it, but it reports an error if you remove the reference to the project.
The reason is that adding the servlet dependency caused a conflict with another dependency when packaging.

Solution

You only need to add the scope tag in the dependency to exclude the servlet-api we introduced when packaging the project, as shown below

Classification of scope

Maven’s default dependency configuration items, the default value of scope is compile, the project is often silly to distinguish between the direct default. Today to sort out maven’s scope.

compile: the default is compile, nothing is configured, which means compile. compile means that the dependent project needs to participate in the compilation of the current project, of course, the subsequent test, runtime also participate in it, is a relatively strong dependency. This is a strong dependency. It is usually included when packaging.
test: The scope is test, which means that the dependent project is only involved in the test-related work, including the compilation and execution of the test code. Typical examples are junit.
runntime: The dependent project does not need to be involved in the compilation of the project, but it is required to be involved in the later testing and runtime cycles. Compared with compile, it just skips the compilation. To be honest, in the terminal project (non-open source, internal system), the difference with compile is not very big. The API jar corresponding to the implementation of JSR×××× is compiled, and the specific implementation is runtime, which is enough for compile to know the interface. oracle jdbc driver package is a good example, and the general scope is runntime. I can use A to achieve it, or B to achieve it.
provided: provided means that it can be packaged without being packaged in, and other facilities (Web Container) will provide it. In fact, the dependency can theoretically participate in the compile, test, run, etc. cycle. It is equivalent to compile, but with the exclude action done during the packaging phase.
system: In terms of involvement, it is the same as provided, but the dependencies are not grabbed from the maven repository, but from the local filesystem.

[Solved] Resource compilation failed. Check logs for details.

Record the problems encountered that cannot be clearly answered by the search.

Error log:

Execution failed for task ‘:app:mergeDebugResources’.
> A failure occurred while executing com. android. build. gradle. internal. res.ResourceCompilerRunnable
> Resource compilation failed. Check logs for details.

* Try:
Run with –info or –debug option to get more log output. Run with –scan to get full insights.

Error: I added a string-array resource file, and “I’m here” used the abbreviation, which is what caused the above error.

Solution: no abbreviation, directly use “I am here”

[Solved] ElasticsearchStatusException[Elasticsearch exception [type=mapper_parsing_exception, reason=failed t

Project scenario:

Today, when I was writing code in Java to check the data in ES, the following error occurred. I checked it for a while and found the problem

Console prompt

ElasticsearchStatusException[Elasticsearch exception [type=mapper_parsing_exception, reason=failed to parse field [location] of type [geo_point]]
]; nested: ElasticsearchException[Elasticsearch exception [type=parse_exception, reason=unsupported symbol [.] in geohash [30.871729121.81959]]]; nested: ElasticsearchException[Elasticsearch exception [type=illegal_argument_exception, reason=unsupported symbol [.] in geohash [30.871729121.81959]]];
	at org.elasticsearch.rest.BytesRestResponse.errorFromXContent(BytesRestResponse.java:176)
	at org.elasticsearch.client.RestHighLevelClient.parseEntity(RestHighLevelClient.java:2011)
	at org.elasticsearch.client.RestHighLevelClient.parseResponseException(RestHighLevelClient.java:1988)
	at org.elasticsearch.client.RestHighLevelClient.internalPerformRequest(RestHighLevelClient.java:1745)
	at org.elasticsearch.client.RestHighLevelClient.performRequest(RestHighLevelClient.java:1702)
	at org.elasticsearch.client.RestHighLevelClient.performRequestAndParseEntity(RestHighLevelClient.java:1672)
	at org.elasticsearch.client.RestHighLevelClient.index(RestHighLevelClient.java:1029)
	at com.woniu.EsDemoApplicationTests.insertDoc(EsDemoApplicationTests.java:115)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at 
	at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53)
	at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:69)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
	Suppressed: org.elasticsearch.client.ResponseException: method [PUT], host [http://120.48.46.177:9200], URI [/hotel/_doc/45870?timeout=1m], status line [HTTP/1.1 400 Bad Request]
Warnings: [Elasticsearch built-in security features are not enabled. Without authentication, your cluster could be accessible to anyone. See https://www.elastic.co/guide/en/elasticsearch/reference/7.16/security-minimal-setup.html to enable security.]
{"error":{"root_cause":[{"type":"parse_exception","reason":"unsupported symbol [.] in geohash [30.871729121.81959]"}],"type":"mapper_parsing_exception","reason":"failed to parse field [location] of type [geo_point]","caused_by":{"type":"parse_exception","reason":"unsupported symbol [.] in geohash [30.871729121.81959]","caused_by":{"type":"illegal_argument_exception","reason":"unsupported symbol [.] in geohash [30.871729121.81959]"}}},"status":400}
		at org.elasticsearch.client.RestClient.convertResponse(RestClient.java:326)
		at org.elasticsearch.client.RestClient.performRequest(RestClient.java:296)
		at org.elasticsearch.client.RestClient.performRequest(RestClient.java:270)
		at org.elasticsearch.client.RestHighLevelClient.performClientRequest(RestHighLevelClient.java:2082)
		at org.elasticsearch.client.RestHighLevelClient.internalPerformRequest(RestHighLevelClient.java:1732)
		... 71 more
Caused by: ElasticsearchException[Elasticsearch exception [type=parse_exception, reason=unsupported symbol [.] in geohash [30.871729121.81959]]]; nested: ElasticsearchException[Elasticsearch exception [type=illegal_argument_exception, reason=unsupported symbol [.] in geohash [30.871729121.81959]]];
	at org.elasticsearch.ElasticsearchException.innerFromXContent(ElasticsearchException.java:485)
	at org.elasticsearch.ElasticsearchException.fromXContent(ElasticsearchException.java:396)
	at org.elasticsearch.ElasticsearchException.innerFromXContent(ElasticsearchException.java:426)
	at org.elasticsearch.ElasticsearchException.failureFromXContent(ElasticsearchException.java:592)
	at org.elasticsearch.rest.BytesRestResponse.errorFromXContent(BytesRestResponse.java:168)
	... 74 more
Caused by: ElasticsearchException[Elasticsearch exception [type=illegal_argument_exception, reason=unsupported symbol [.] in geohash [30.871729121.81959]]]
	at org.elasticsearch.ElasticsearchException.innerFromXContent(ElasticsearchException.java:485)
	at org.elasticsearch.ElasticsearchException.fromXContent(ElasticsearchException.java:396)
	at org.elasticsearch.ElasticsearchException.innerFromXContent(ElasticsearchException.java:426)

Cause analysis:

The data structure of the geographic coordinate attribute location in ES is (latitude, longitude), and I inserted a comma in the middle when I spliced strings, resulting in an error in inserting data. Here are the really useful parts of the above code.

Real error reason:

{"error":{"root_cause":[{"type":"parse_exception","reason":"unsupported symbol [.] in 
geohash [30.871729121.81959]"}],"type":"mapper_parsing_exception","reason":"failed to parse 
field [location] of type [geo_point]","caused_by":{"type":"parse_exception","reason":"unsupported symbol [.] in geohash 
[30.871729121.81959]","caused_by":
{"type":"illegal_argument_exception","reason":"unsupported symbol [.] in geohash 
[30.871729121.81959]"}}},"status":400}

Incorrect writing:

this.location = hotel.getLatitude()+hotel.getLongitude();

Correct writing:

this.location = hotel.getLatitude()+","+hotel.getLongitude();

Solution:

Check the string before splicing, and the order (latitude and longitude) cannot be reversed, otherwise it may lead to geographical location errors.

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