MySQlとautoReconnect = trueはまだ私に例外を与えます

Question

私はMySQLでSpringとHibernateを使用していますが、タイムアウトに問題があります。 私は、データベースのURLの末尾にautoReconnect=trueを使用しますが、私はまだ以下のように例外を受け取る：

2016-08-03 01:01:00 - SCHEDULED ACTIVITY TO DELETE OLD NOTIFICATIONS 
2016-08-03 01:01:00 - Threw exception in WakeUpDatabase::smartQuery :com.exception.QueryException: Error using database 
    at com.services.dbservices.DatabaseNotificationServicesImpl.findAllNotifications(DatabaseNotificationServicesImpl.java:160) 
    at com.services.NotificationManagementServicesImpl.deleteOldNotifications(NotificationManagementServicesImpl.java:47) 
    at com.services.WakeUpDatabase.smartQuery(WakeUpDatabase.java:33) 
    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:497) 
    at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:65) 
    at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54) 
    at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81) 
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) 
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
    at java.lang.Thread.run(Thread.java:745) 
Caused by: org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.TransactionException: JDBC begin transaction failed: 
    at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:431) 
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) 
    at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:427) 
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:276) 
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodIntercceptor.invoke(CrudMethodMetadataPostProcessor.java:122) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) 
    at com.sun.proxy.$Proxy286.findAll(Unknown Source) 
    at com.services.dbservices.tables.NotificationServicesImpl.findAllNotifications(NotificationServicesImpl.java:37) 
    at com.services.dbservices.DatabaseNotificationServicesImpl.findAllNotifications(DatabaseNotificationServicesImpl.java:158) 
    ... 16 more 
Caused by: javax.persistence.PersistenceException: org.hibernate.TransactionException: JDBC begin transaction failed: 
    at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1763) 
    at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1677) 
    at org.hibernate.jpa.spi.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1771) 
    at org.hibernate.jpa.internal.TransactionImpl.begin(TransactionImpl.java:64) 
    at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:67) 
    at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:380) 
    ... 31 more 
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:1471) 
    at org.hibernate.jpa.internal.TransactionImpl.begin(TransactionImpl.java:61) 
    ... 33 more 
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 46,107,953 milliseconds ago. The last packet sent successfully to the server was 46,107,953 milliseconds ago. 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(NativeConstructorAccessorImpl.java:62) 
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
    at java.lang.reflect.Constructor.newInstance(Constructor.java:422) 
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:400) 
    at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1038) 
    at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3621) 
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2429) 
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2594) 
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2541) 
    at com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:4882) 
    at org.apache.commons.dbcp.DelegatingConnection.setAutoCommit(DelegatingConnection.java:371) 
    at org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.setAutoCommit(PoolingDataSource.java:328) 
    at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doBegin(JdbcTransaction.java:72) 
    ... 36 more 
Caused by: java.net.SocketException: Broken pipe 
    at java.net.SocketOutputStream.socketWrite0(Native Method) 
    at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:109) 
    at java.net.SocketOutputStream.write(SocketOutputStream.java:153) 
    at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) 
    at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) 
    at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3603) 
    ... 43 more 

これは、データベースのBean構成である：私のapplication.propertiesで

public class AppConfig extends WebMvcConfigurerAdapter implements AsyncConfigurer 
    .... 
    @Bean(name = "dataSource") 
     public BasicDataSource dataSource() { 
      BasicDataSource ds = new BasicDataSource(); 
      ds.setDriverClassName(env.getRequiredProperty(PROPERTY_NAME_DATABASE_DRIVER)); 
      ds.setUrl(env.getRequiredProperty(PROPERTY_NAME_DATABASE_URL)); 
      ds.setUsername(env.getRequiredProperty(PROPERTY_NAME_DATABASE_USERNAME)); 
      ds.setPassword(env.getRequiredProperty(PROPERTY_NAME_DATABASE_PASSWORD)); 
      return ds; 
    } 

私が持っている

#DB properties: 
db.driver=com.mysql.jdbc.Driver 
db.url=jdbc:mysql://dbAddress:3306/schemaName?autoReconnect=true 
db.username=username 
db.password=password 

この退屈な例外を避けるにはどうすればよいですか？ありがとう

UPDATE：私は今、私は例外が再びあなたは例外に関する以下のリンクを参照してください

Answer 1

をスローされますかどうかを確認する必要があり、私の構成に

ds.setValidationQuery("SELECT 1"); 

を追加します - Why does Hibernate/JDBC/MySQL drop connections after a day or so?

休止状態の設定でプロパティの後続設定を使用してみてください

1. プロパティ名= "connectio n.autoReconnect」=真
2. プロパティ名= "connection.autoReconnectForPools" =真
3. プロパティ名= "connection.is接続検証-必要" =真を使用したくない場合は

autoReconnectとwait_timeは、そのために行く、その唯一の提案は、スケジュールです。

7時間ごとに実行され、テストクエリを実行するスケジューラを作成します。これにより、MySqlサーバは永久にアクティブになります。