Original: void addrolesbyuserid (string [] roleids, string userid);
After modification: void addrolesbyuserid (@ param (“roleids”) string [] roleids, @ param (“userid”) string userid);
Error reason: roleides is not found, and the roleides parameter is not detected by SQL statement
Solution: add the @ param annotation to specify the parameters of the incoming SQL statement
XML error configuration file
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.atguigu.springcloud.dao.PaymentDao">
<insert id="create" parameterType="com.atguigu.springcloud.entities.Payment" useGeneratedKeys="true" keyProperty="id">
insert into payment(serial)values(#{serial})
</insert>
<resultMap id="BaseResultMap" type="com.atguigu.springcloud.entities.Payment">
<id column="id" property="id" jdbcType="bigint"/>
<result column="serial" property="serial" jdbcType="VARCHAR"/>
</resultMap>
<select id="getPaymentById" parameterType="com.atguigu.springcloud.entities.Payment" resultMap="BaseResultMap">
select * from payment where id=#{id}
</select>
</mapper>
Error message:
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-10-14 16:42:24.336 ERROR 31004 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'paymentImpl': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'paymentDao' defined in file [E:\cloud2020\payment8001\target\classes\com\atguigu\springcloud\dao\PaymentDao.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\cloud2020\payment8001\target\classes\mapper\PaymentMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving JdbcType. Cause: java.lang.IllegalArgumentException: No enum constant org.apache.ibatis.type.JdbcType.bigint
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:337) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) [spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
at com.atguigu.springcloud.PaymentMain8001.main(PaymentMain8001.java:15) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_241]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_241]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_241]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_241]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.2.2.RELEASE.jar:2.2.2.RELEASE]
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'paymentDao' defined in file [E:\cloud2020\payment8001\target\classes\com\atguigu\springcloud\dao\PaymentDao.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\cloud2020\payment8001\target\classes\mapper\PaymentMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving JdbcType. Cause: java.lang.IllegalArgumentException: No enum constant org.apache.ibatis.type.JdbcType.bigint
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1526) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1406) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:207) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeanByName(AbstractAutowireCapableBeanFactory.java:454) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:543) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:513) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:653) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:224) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:116) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:334) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
... 22 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\cloud2020\payment8001\target\classes\mapper\PaymentMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving JdbcType. Cause: java.lang.IllegalArgumentException: No enum constant org.apache.ibatis.type.JdbcType.bigint
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:656) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:636) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1287) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1511) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
... 36 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\cloud2020\payment8001\target\classes\mapper\PaymentMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving JdbcType. Cause: java.lang.IllegalArgumentException: No enum constant org.apache.ibatis.type.JdbcType.bigint
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
... 49 common frames omitted
Caused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\cloud2020\payment8001\target\classes\mapper\PaymentMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving JdbcType. Cause: java.lang.IllegalArgumentException: No enum constant org.apache.ibatis.type.JdbcType.bigint
at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:523) ~[mybatis-spring-1.3.1.jar:1.3.1]
at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:380) ~[mybatis-spring-1.3.1.jar:1.3.1]
at org.mybatis.spring.SqlSessionFactoryBean.getObject(SqlSessionFactoryBean.java:547) ~[mybatis-spring-1.3.1.jar:1.3.1]
at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration.sqlSessionFactory(MybatisAutoConfiguration.java:153) ~[mybatis-spring-boot-autoconfigure-1.3.0.jar:1.3.0]
at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration$$EnhancerBySpringCGLIB$$8cc3274e.CGLIB$sqlSessionFactory$0(<generated>) ~[mybatis-spring-boot-autoconfigure-1.3.0.jar:1.3.0]
at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration$$EnhancerBySpringCGLIB$$8cc3274e$$FastClassBySpringCGLIB$$a90bf4ff.invoke(<generated>) ~[mybatis-spring-boot-autoconfigure-1.3.0.jar:1.3.0]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration$$EnhancerBySpringCGLIB$$8cc3274e.sqlSessionFactory(<generated>) ~[mybatis-spring-boot-autoconfigure-1.3.0.jar:1.3.0]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_241]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_241]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_241]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_241]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
... 50 common frames omitted
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving JdbcType. Cause: java.lang.IllegalArgumentException: No enum constant org.apache.ibatis.type.JdbcType.bigint
at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:120) ~[mybatis-3.4.4.jar:3.4.4]
at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:92) ~[mybatis-3.4.4.jar:3.4.4]
at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:521) ~[mybatis-spring-1.3.1.jar:1.3.1]
... 63 common frames omitted
Caused by: org.apache.ibatis.builder.BuilderException: Error resolving JdbcType. Cause: java.lang.IllegalArgumentException: No enum constant org.apache.ibatis.type.JdbcType.bigint
at org.apache.ibatis.builder.BaseBuilder.resolveJdbcType(BaseBuilder.java:73) ~[mybatis-3.4.4.jar:3.4.4]
at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildResultMappingFromContext(XMLMapperBuilder.java:382) ~[mybatis-3.4.4.jar:3.4.4]
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:280) ~[mybatis-3.4.4.jar:3.4.4]
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:252) ~[mybatis-3.4.4.jar:3.4.4]
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElements(XMLMapperBuilder.java:244) ~[mybatis-3.4.4.jar:3.4.4]
at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:116) ~[mybatis-3.4.4.jar:3.4.4]
... 65 common frames omitted
Caused by: java.lang.IllegalArgumentException: No enum constant org.apache.ibatis.type.JdbcType.bigint
at java.lang.Enum.valueOf(Enum.java:238) ~[na:1.8.0_241]
at org.apache.ibatis.type.JdbcType.valueOf(JdbcType.java:25) ~[mybatis-3.4.4.jar:3.4.4]
at org.apache.ibatis.builder.BaseBuilder.resolveJdbcType(BaseBuilder.java:71) ~[mybatis-3.4.4.jar:3.4.4]
... 70 common frames omitted
Process finished with exit code 0
Correct XML configuration file:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.atguigu.springcloud.dao.PaymentDao">
<insert id="create" parameterType="Payment" useGeneratedKeys="true" keyProperty="id">
insert into payment(serial) values(#{serial})
</insert>
<resultMap id="BaseResultMap" type="com.atguigu.springcloud.entities.Payment">
<id column="id" property="id" jdbcType="BIGINT"/>
<result column="serial" property="serial" jdbcType="VARCHAR"/>
</resultMap>
<select id="getPaymentById" parameterType="Long" resultMap="BaseResultMap">
select * from payment where id=#{id};
</select>
</mapper>
The JDBC type is written in uppercase
Full error:
The problem revolves around mapper. There may be many reasons for the problem:
1. The control document is written incorrectly
2. The file generated after compilation does not contain XML file
Solution: manually specify the resource folder in the pop file
<!-- Manually specify the resource folder-->
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
</resources>
This error message may appear when opening Java programs in idea. Generally, it is reminded Server startup failed. Port XXXX is already in use.
Go and see your POM file at this time
Comment out the dependency of hot deployment!!!!
OK！ Remember to refresh Maven after commenting
Start successful
Carefully check that the annotation and requestmappering path in each package are correct, but they can’t be accessed
The possible reason is that the project needs to be refreshed
While learning about annotations in the Spring Framework, I had this problem on my first test and couldn’t figure it out
Finally I found out that there is a mismatch between JDK and Spring version, my Spring framework version is 5.2.6 and it only supports up to JDK15 and mine is JDK16, which causes the problem
Spring Framework 5.3.x: JDK 8-17 (expected)Spring Framework 5.2.x: JDK 8-15 (expected)Spring Framework 5.1.x: JDK 8-12Spring Framework 5.0.x: JDK 8-10Spring Framework 4.3.x: JDK 6-8
I was going to download another JDK8, but suddenly I found that in File-Setting-Build, Execution... - I was able to adjust and the problem was solved.Project bytecode version from 16 to 15 in the Java Compiler
Error: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [D:\java\spring5_demo3\out\production\spring5_demo3\com\spring5\service\UserService.class]; nested exception is org.springframework.core.NestedIOException: ASM ClassReader failed to parse class file – probably due to a new Java class file version that isn’t supported yet: file [D:\java\spring5_demo3\out\production\spring5_demo3\com\spring5\service\UserService.class]; nested exception is java.lang.IllegalArgumentException: Unsupported class file major version 60
During a project development, the front-end uploaded a file and reported a bug without permission
Problem description
Request processing failed; nested exception is org.springframework.web.multipart.MultipartException: Failed to parse multipart servlet request; Needed exception is org.apache.commons.fileupload.fileuploadbase $iofileuploadexception: processing of multipart/form data request failed
Error reporting reason
It should be because HTTP remote access does not have permission to access the temporary directory of Tomcat on the server
So we might as well directly set a temporary file upload path instead of using the default path of Tomcat
Solution:
Modify the uploaded temporary file path instead of the default temporary file path of Tomcat
When uploading the configuration file in applicationcontext.xml of spring, add
<property name="uploadTempDir" value="/temp"/>
The content in value is the temporary file directory you want to set
springboot will load by defaultorg.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration
@SpringBootApplication(exclude= {DataSourceAutoConfiguration.class})
Following the crud-ssm tutorial in Silicon Valley, insert the following bean tags when configuring the spring environment configuration file applicationcontext.xml,
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:mybatis-config"></property>
<property name="dataSource" ref="dataSource"></property>
<property name="mapperLocations" value="classpath:mappers/*.xml"></property>
</bean>
among
<property name="mapperLocations" value="classpath:mappers/*.xml"></property>
It will be red. You only need to create any. XML file under Resources/maps, but this will lead to Title errors
just enter the project name\target\xxx-1.0-snapshot\WEB-INF\classes\mappers and delete the.XML file created at that time
Report 400: data type mismatch:
The type of time passed in the path URL is string
You can add this annotation in the controller layer to convert string to java.util.date
@DateTimeFormat(pattern = "yyyy-MM-dd") Date begin
@GetMapping
public List<Demand> listAll(@RequestParam("begin") @DateTimeFormat(pattern = "yyyy-MM-dd") Date beginTime, @RequestParam("end") @DateTimeFormat(pattern = "yyyy-MM-dd")Date endTime){
System.out.println("beginTime"+beginTime);
System.out.println("endTime:"+endTime);
return demandClient.queryAllDemands(beginTime, endTime);
}
date begintime in the figure; If the front-end parameter is not begintime but begin, it needs to be defined as begin. in @ requestparam
Error message:
initialization failed for‘ https://start.spring.io ’
Please check URL, network and proxy settings.
Error message:
Cannot download ‘ https://start.spring.io ’: connect timed out
the following error occurs when creating a new springboot project
1. Open file — settings
2. Search HTTP proxy – & gt; Check automatic proxy configuration URL:
– & gt; input https://start.spring.io –> Click auto detect proxy settings
– & gt; input https://start.spring.io –> Click OK
3. Finally, prompt: successful. It means success. Just recreate it
finally, it will be created successfully when it is newly created
HTTP Status [500] – [Internal Server Error]
Type Exception Report
Message Request processing failed; nested exception is com.sun.jersey.api.client.UniformInterfaceException: PUT http://localhost:9090/loads/2441068f057c4c7fa87e406837bd08f9_ returned a response status of 403 Forbidden
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is com.sun.jersey.api.client.UniformInterfaceException: PUT http://localhost:9090/loads/2441068f057c4c7fa87e406837bd08f9_ returned a response status of 403 Forbidden
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:986)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:881)
javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:855)
javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
Root Cause
com.sun.jersey.api.client.UniformInterfaceException: PUT http://localhost:9090/loads/2441068f057c4c7fa87e406837bd08f9_ returned a response status of 403 ForbiddenReason: the default configuration readonly of Tomcat web.xml is true, which makes it impossible to read and write data to the server across servers
The solution is: configure in xeb.xml under config in the local folder of Tomcat
<servlet>
<servlet-name>default</servlet-name>
<servlet-class>org.apache.catalina.servlets.DefaultServlet</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
<!--New-->
<init-param>
<param-name>readonly</param-name>
<param-value>false</param-value>
</init-param>
<init-param>
<param-name>listings</param-name>
<param-value>false</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>