Tag Archives: java

Error running ‘Application‘: Command line is too long [How to Solve]

2021.11.18

When idea starts a new project, a pop-up prompt error is encountered

Error running ‘xxx Application’:Command line is too lang. Shorten command line for Application or aalso for Spring Boot default configuration

Error reason: the springboot project startup command is too long

Solution:

The first method (protest is effective)

Step 1: find the idea/workspace.xml file in the project, and then find <component name="PropertiesComponent"> </component > tag, as shown below

step2：Add a line to the component tag < property name="dynamic.classpath" value="true"/>, as shown below

Restart the project.

Error building SqlSession. ### Cause: org.apache.ibatis.builder.BuilderException: Error creating d

Debug:
I reported this error when I was a beginner of mybatis

Error building SqlSession.

Cause: org.apache.ibatis.builder.BuilderException: Error creating do

Caused by: org.xml.sax.SAXParseException; lineNumber: 2; columnNumber: 6; Processing instruction targets matching ‘[XX] [mm] [ll]’ are not allowed.

Finally, it is found that one line is left blank at the beginning of the SQL mapping file, but it is required that one line cannot be left blank. Just remove the blank line

java.sql.SQLRecoverableException: IO Error: Connection reset

I wrote an executable jar package to execute on Linux, connected to Oracle 11g database and obtained database data. It was always the card owner. When it timed out, it ran out with an error message. The server could be restarted several times, and it was stuck later.

Execute jar package statement

/root/jdk1.8.0_ 181/bin/java -jar GetJdbc-1.0-SNAPSHOT.jar

java.sql.SQLRecoverableException: IO Error: Connection reset
        at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:421)
        at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:531)
        at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:221)
        at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
        at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:503)
        at java.sql.DriverManager.getConnection(DriverManager.java:664)
        at java.sql.DriverManager.getConnection(DriverManager.java:247)
        at com.iwhalecloud.jdbc.utils.GetDataSource.getConnection(GetDataSource.java:27)
        at com.iwhalecloud.jdbc.execute.DistinguishDataSource.oracleQuery(DistinguishDataSource.java:78)
        at com.iwhalecloud.jdbc.execute.DistinguishDataSource.dataHandle(DistinguishDataSource.java:34)
        at com.iwhalecloud.jdbc.main.MainProgram.main(MainProgram.java:26)
Caused by: java.net.SocketException: Connection reset
        at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:115)
        at java.net.SocketOutputStream.write(SocketOutputStream.java:155)
        at oracle.net.ns.DataPacket.send(DataPacket.java:199)
        at oracle.net.ns.NetOutputStream.flush(NetOutputStream.java:211)
        at oracle.net.ns.NetInputStream.getNextPacket(NetInputStream.java:227)
        at oracle.net.ns.NetInputStream.read(NetInputStream.java:175)
        at oracle.net.ns.NetInputStream.read(NetInputStream.java:100)
        at oracle.net.ns.NetInputStream.read(NetInputStream.java:85)
        at oracle.jdbc.driver.T4CSocketInputStreamWrapper.readNextPacket(T4CSocketInputStreamWrapper.java:122)
        at oracle.jdbc.driver.T4CSocketInputStreamWrapper.read(T4CSocketInputStreamWrapper.java:78)
        at oracle.jdbc.driver.T4CMAREngine.unmarshalUB1(T4CMAREngine.java:1179)
        at oracle.jdbc.driver.T4CMAREngine.unmarshalSB1(T4CMAREngine.java:1155)
        at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:279)
        at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:186)
        at oracle.jdbc.driver.T4CTTIoauthenticate.doOAUTH(T4CTTIoauthenticate.java:366)
        at oracle.jdbc.driver.T4CTTIoauthenticate.doOAUTH(T4CTTIoauthenticate.java:752)
        at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:359)
        ... 10 more
close
Exception in thread "main" java.lang.NullPointerException
        at com.iwhalecloud.jdbc.execute.DistinguishDataSource.oracleQuery(DistinguishDataSource.java:80)
        at com.iwhalecloud.jdbc.execute.DistinguishDataSource.dataHandle(DistinguishDataSource.java:34)
        at com.iwhalecloud.jdbc.main.MainProgram.main(MainProgram.java:26)

Find an effective solution on the Internet and add a parameter – DJava. Security. EGD = file:/dev /../dev/urandom

The execution statement is as follows

/root/jdk1.8.0_ 181/bin/java -jar -Djava.security.egd=file:/dev/../dev/urandom GetJdbc-1.0-SNAPSHOT.jar

ERROR c.z.hikari.pool.HikariPool:594 restartedMain HikariPool-1 -Exception

  [problem description]: when starting the springboot project, the following stack error is reported

32.014 ERROR c.z.hikari.pool.HikariPool    :594  restartedMain                    HikariPool-1 - Exception during pool initialization.
com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
        at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
        at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
        at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:833)
        at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:453)
        at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
        at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
        at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138)
        at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:364)
        at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206)
        at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:476)
        at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561)
        at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115)
        at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112)
        at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:158)
        at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:116)
        at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79)
        at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:330)
        at org.springframework.boot.jdbc.EmbeddedDatabaseConnection.isEmbedded(EmbeddedDatabaseConnection.java:184)
        at org.springframework.boot.jdbc.init.DataSourceScriptDatabaseInitializer.isEmbeddedDatabase(DataSourceScriptDatabaseInitializer.java:64)
        at org.springframework.boot.sql.init.AbstractScriptDatabaseInitializer.isEnabled(AbstractScriptDatabaseInitializer.java:87)
        at org.springframework.boot.sql.init.AbstractScriptDatabaseInitializer.initializeDatabase(AbstractScriptDatabaseInitializer.java:74)
        at org.springframework.boot.sql.init.AbstractScriptDatabaseInitializer.afterPropertiesSet(AbstractScriptDatabaseInitializer.java:65)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1845)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1782)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:602)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
        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.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:944)
        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:754)
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:434)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:338)
        at com.abc.wiki.WikiApplication.main(WikiApplication.java:19)
        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 org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
        at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
        at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
        at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
        at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
        at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
        at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:953)
        at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:823)
        ... 42 common frames omitted
Caused by: java.net.ConnectException: Connection timed out: connect
        at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
        at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:155)
        at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
        ... 45 common frames omitted

[cause of problem]: when debugging the project locally today, the WiFi connected to the computer changed, resulting in the change of IP, which finally led to this problem.

[solution]: modify the configuration of the project connection database to a new IP address.

[Solved] Springboot loads static page Error: whitelabel error page

Loading the local static page card has been in this place for a long time. I tried all kinds of methods. Finally, I found the one suitable for me. Finally, I loaded it. Record it. If you encounter this situation, you can try it.

1. Add in the following place/

2. This place uses @controller

If you have this problem, you can try it. If you can’t change another method, it’s mainly the problem of configuration. Small places may lead to failure

Feign call Error: duplicate name [How to Solve]

 

Description:
The bean ‘personnel.FeignClientSpecification’, defined in null, could not be registered. A bean with that name has already been defined in null and overriding is disabled.
Action:
Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true

Solution 1:
Applicati.yml configuration file is added to allow duplicate names

Solution 2:
Write together the contents of different feign interfaces called by the same microservice


Write the contents of the two interfaces together

Spring-boot-maven-plugin Error [How to Solve]

1. After using idea to create a spring project, it is found that the spring boot Maven plugin in pom.xml reports an error.

2. Compared with the springboot project created on the official website, it is found that < version> 2.4.12

3. Add the corresponding version to idea

Conclusion: the problem that is not a problem is the most people’s mentality

[Solved] Rocketmq remote connection error: sendDefaultimpl call timeout

error message

Startorg.apache.rocketmq.remoting.exception.RemotingTooMuchRequestException: sendDefaultImpl call timeout
	at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.sendDefaultImpl(DefaultMQProducerImpl.java:612)
	at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.send(DefaultMQProducerImpl.java:1253)
	at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.send(DefaultMQProducerImpl.java:1203)
	at org.apache.rocketmq.client.producer.DefaultMQProducer.send(DefaultMQProducer.java:214)
	at com.cmit.fabric.java.rocketmq.RocketMQTest.producer.ProducerTest.producerStart(ProducerTest.java:39)
	at com.cmit.fabric.java.rocketmq.RocketMQTest.producer.ProducerTest.main(ProducerTest.java:27)

Solution:

Add in conf/break.conf

	namesrvAddr = Internet access address: 9876
brokerIP1=Internet access address

Start command change

Start namesrv
sh bin/mqnamesrv -n Internet access address: 9876
Start the broker
sh bin/mqbroker -n Internet access address:9876 -c conf/broker.conf autoCreateTopicEnable=true

How to Solve Springboot YML configurate logging.level error

Error message

"C:\Program Files\Java\jdk-9.0.4\bin\java.exe" -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.1\lib\idea_rt.jar=49541:C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.1\bin" -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true -Dfile.encoding=UTF-8 -classpath D:\java\set\target\classes;C:\Users\tianyu.wang\.m2\repository\org\springframework\boot\spring-boot-starter-web\2.5.6\spring-boot-starter-web-2.5.6.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\boot\spring-boot-starter\2.5.6\spring-boot-starter-2.5.6.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\2.5.6\spring-boot-autoconfigure-2.5.6.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\boot\spring-boot-starter-logging\2.5.6\spring-boot-starter-logging-2.5.6.jar;C:\Users\tianyu.wang\.m2\repository\ch\qos\logback\logback-classic\1.2.6\logback-classic-1.2.6.jar;C:\Users\tianyu.wang\.m2\repository\ch\qos\logback\logback-core\1.2.6\logback-core-1.2.6.jar;C:\Users\tianyu.wang\.m2\repository\org\apache\logging\log4j\log4j-to-slf4j\2.14.1\log4j-to-slf4j-2.14.1.jar;C:\Users\tianyu.wang\.m2\repository\org\apache\logging\log4j\log4j-api\2.14.1\log4j-api-2.14.1.jar;C:\Users\tianyu.wang\.m2\repository\org\slf4j\jul-to-slf4j\1.7.32\jul-to-slf4j-1.7.32.jar;C:\Users\tianyu.wang\.m2\repository\jakarta\annotation\jakarta.annotation-api\1.3.5\jakarta.annotation-api-1.3.5.jar;C:\Users\tianyu.wang\.m2\repository\org\yaml\snakeyaml\1.28\snakeyaml-1.28.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\boot\spring-boot-starter-json\2.5.6\spring-boot-starter-json-2.5.6.jar;C:\Users\tianyu.wang\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.12.5\jackson-databind-2.12.5.jar;C:\Users\tianyu.wang\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.12.5\jackson-annotations-2.12.5.jar;C:\Users\tianyu.wang\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.12.5\jackson-core-2.12.5.jar;C:\Users\tianyu.wang\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.12.5\jackson-datatype-jdk8-2.12.5.jar;C:\Users\tianyu.wang\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.12.5\jackson-datatype-jsr310-2.12.5.jar;C:\Users\tianyu.wang\.m2\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.12.5\jackson-module-parameter-names-2.12.5.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\boot\spring-boot-starter-tomcat\2.5.6\spring-boot-starter-tomcat-2.5.6.jar;C:\Users\tianyu.wang\.m2\repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.54\tomcat-embed-core-9.0.54.jar;C:\Users\tianyu.wang\.m2\repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.54\tomcat-embed-el-9.0.54.jar;C:\Users\tianyu.wang\.m2\repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.54\tomcat-embed-websocket-9.0.54.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\spring-web\5.3.12\spring-web-5.3.12.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\spring-beans\5.3.12\spring-beans-5.3.12.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\spring-webmvc\5.3.12\spring-webmvc-5.3.12.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\spring-aop\5.3.12\spring-aop-5.3.12.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\spring-context\5.3.12\spring-context-5.3.12.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\spring-expression\5.3.12\spring-expression-5.3.12.jar;C:\Users\tianyu.wang\.m2\repository\mysql\mysql-connector-java\8.0.27\mysql-connector-java-8.0.27.jar;C:\Users\tianyu.wang\.m2\repository\org\projectlombok\lombok\1.18.22\lombok-1.18.22.jar;C:\Users\tianyu.wang\.m2\repository\org\slf4j\slf4j-api\1.7.32\slf4j-api-1.7.32.jar;C:\Users\tianyu.wang\.m2\repository\org\hamcrest\hamcrest\2.2\hamcrest-2.2.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\spring-core\5.3.12\spring-core-5.3.12.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\spring-jcl\5.3.12\spring-jcl-5.3.12.jar;C:\Users\tianyu.wang\.m2\repository\junit\junit\4.13.1\junit-4.13.1.jar;C:\Users\tianyu.wang\.m2\repository\org\hamcrest\hamcrest-core\2.2\hamcrest-core-2.2.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\boot\spring-boot-test\2.5.6\spring-boot-test-2.5.6.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\boot\spring-boot\2.5.6\spring-boot-2.5.6.jar;C:\Users\tianyu.wang\.m2\repository\org\springframework\spring-test\5.3.12\spring-test-5.3.12.jar com.SetApplication
2021-11-14 13:09:22,447 - 

***************************
APPLICATION FAILED TO START
***************************

Description:

Failed to bind properties under 'logging.level' to java.util.Map<java.lang.String, org.springframework.boot.logging.LogLevel>:

    Reason: org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.lang.String] to type [java.util.Map<java.lang.String, org.springframework.boot.logging.LogLevel>]

Action:

Update your application's configuration


The process has ended with exit code 1

Screenshot

Solution:

application.yml files
   logging:
  pattern:
    console: "%d - %msg%n"  # %d represents the date %msg log information %n wraps
  file:
    path: D:/java/setlog
  level:
   root: info

How to Solve Error: Invalid bound statement (not found)

When spring integrates mybatis, such an error is reported because the package name is created incorrectly when the mapper.xml file is created in the resources directory. Because the package cannot be created under resources, only the folder directory can be created. The key point is (the folder cannot be in the form of “.”), so it can’t be lazy and easy. The directory should be created level by level

Vue Start Error: This relative module was not found:

This relative module was not found:
I checked it for a long time and found nothing wrong. Finally, I took a look at the directory

I first created an empty project… And then created another project in the empty project by using the terminal command NPM create. The result is that when NPM install XXX is followed, it is in the parent directory of vuero. Therefore, an error will be reported when starting vuero,
in addition, try to use cnpm install XXX instead of NPM insatl XXX