java-Spring-boot应用程序中的套接字写入错误

我创建了一个spring-boot应用程序,并将其托管在Amazon EC2中.

问题似乎出在与MySQL数据库的正常连接上.

闲置一段时间后,发生以下错误,并且我的Web服务返回错误500.

我想知道是否可以添加一个配置属性来避免此错误.

Caused by: org.hibernate.TransactionException: JDBC begin transaction failed: 
    at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doBegin(JdbcTransaction.java:76)
    at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.begin(AbstractTransactionImpl.java:162)
    at org.hibernate.internal.SessionImpl.beginTransaction(SessionImpl.java:1431)
    at org.hibernate.jpa.internal.TransactionImpl.begin(TransactionImpl.java:61)
    ... 66 common frames omitted
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was57961 seconds ago.The last packet sent successfully to the server was 57961 seconds ago, which  is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
    at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1074)
    at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3246)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1917)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2060)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2536)
    at com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:4874)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:126)
    at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)
    at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)
    at com.sun.proxy.$Proxy42.setAutoCommit(Unknown Source)
    at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doBegin(JdbcTransaction.java:72)
    ... 69 common frames omitted
Caused by: java.net.SocketException: Software caused connection abort: socket write error
    at java.net.SocketOutputStream.socketWrite0(Native Method)
    at java.net.SocketOutputStream.socketWrite(Unknown Source)
    at java.net.SocketOutputStream.write(Unknown Source)

到目前为止,我的配置属性具有以下属性：

spring.datasource.url=xxxx
spring.datasource.username=xxx
spring.datasource.password=xxxx
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.jpa.hibernate.ddl-auto=update
server.port=80
spring.datasource.time-between-eviction-runs-millis=10000
spring.datasource.min-evictable-idle-time-millis=10000

解决方法:

我建议您在javadocs中查看所使用的数据源.如果它是Tomcat数据源(如果它在类路径上)是默认值,则可以设置

spring.datasource.validationQuery =选择1
spring.datasource.testOnBorrow = true

(例如).其他数据源实现具有类似的属性,Spring Boot只是通过spring.datasource.*绑定到它们.

标签：spring-boot,spring-data-jpa,amazon-rds,java,mysql
来源： https://codeday.me/bug/20191121/2050129.html