Communications link failure异常解决
一，异常现象
com.bill99.inf.ibatis.DBException: queryForList error::sqlId=orgOrderAssetsMapping.queryModelOrgOrderAssetsMapping param:com.bill99.boss.domain.org.model.OrderAssetsMapping@51ab0a47
at com.bill99.inf.ibatis.SqlMapDao.queryForList(SqlMapDao.java:155)
at com.bill99.inf.ibatis.SqlMapDao.queryForObject(SqlMapDao.java:195)
at com.bill99.boss.domain.org.dao.OrderAssetsMappingDao.findOrderAssetsMappingByModel(OrderAssetsMappingDao.java:40)
at com.bill99.boss.domain.org.dao.OrderAssetsMappingDao$$FastClassBySpringCGLIB$$9e640e6c.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:700)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:51)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:51)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:633)
at com.bill99.boss.domain.org.dao.OrderAssetsMappingDao$$EnhancerBySpringCGLIB$$a4a208a3.findOrderAssetsMappingByModel(<generated>)
at com.bill99.boss.domain.org.service.impl.OrderAssetsMappingServiceImpl.findOrderAssetsMappingByModel(OrderAssetsMappingServiceImpl.java:42)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:51)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at com.sun.proxy.$Proxy216.findOrderAssetsMappingByModel(Unknown Source)
at com.bill99.boss.domain.org.service.AssetsMappingCache.getColNameByFiled(AssetsMappingCache.java:52)
at com.bill99.boss.domain.org.service.impl.AssetsProxyServiceImpl.covertFiledNameToColName(AssetsProxyServiceImpl.java:131)
at com.bill99.boss.domain.org.service.impl.AssetsProxyServiceImpl.covertParams(AssetsProxyServiceImpl.java:88)
at com.bill99.boss.domain.org.service.impl.AssetsProxyServiceImpl.createAssetsBean(AssetsProxyServiceImpl.java:43)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:51)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at com.sun.proxy.$Proxy217.createAssetsBean(Unknown Source)
at MdpTest.test(MdpTest.java:40)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:88)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: com.ibatis.common.jdbc.exception.NestedSQLException:
--- The error occurred while executing query.
--- Check the select t.id as "id",t.product_code as "productCode",t.filed_name as "filedName", t.col_name as "colName" from r_order_assets_mapping t where 1=1 and t.product_code=? and t.filed_name=? order by t.id desc .
--- Check the SQL Statement (preparation failed).
--- Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
at com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryWithCallback(MappedStatement.java:201)
at com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryForList(MappedStatement.java:139)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:578)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:552)
at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForList(SqlMapSessionImpl.java:118)
at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForList(SqlMapClientImpl.java:94)
at com.bill99.inf.ibatis.SqlMapDao.queryForList(SqlMapDao.java:151)
... 74 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
at com.mysql.jdbc.Util.getInstance(Util.java:384)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:929)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2412)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:787)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:49)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:357)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:285)
at java.sql.DriverManager.getConnection(DriverManager.java:571)
at java.sql.DriverManager.getConnection(DriverManager.java:187)
at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:173)
at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:164)
at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:153)
at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:119)
at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)
at org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy$TransactionAwareInvocationHandler.invoke(TransactionAwareDataSourceProxy.java:224)
at com.sun.proxy.$Proxy399.prepareStatement(Unknown Source)
at com.ibatis.sqlmap.engine.execution.DefaultSqlExecutor.prepareStatement(DefaultSqlExecutor.java:519)
at com.ibatis.sqlmap.engine.execution.DefaultSqlExecutor.executeQuery(DefaultSqlExecutor.java:173)
at com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.sqlExecuteQuery(MappedStatement.java:221)
at com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryWithCallback(MappedStatement.java:189)
... 80 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.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 sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1122)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:344)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2334)
... 102 more
Caused by: java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at java.net.Socket.<init>(Socket.java:425)
at java.net.Socket.<init>(Socket.java:241)
at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:256)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:293)
... 103 more
二，解决方法
有下面的导致的
<bean id="bossDS"
class="org.springframework.jdbc.datasource.DriverManagerDataSource"
p:driverClassName="org.gjt.mm.mysql.Driver"
p:url="jdbc:mysql://192.168.126.147:3306/appmobile?autoReconnect=true&useUnicode=true&characterEncoding=UTF-8"
p:username="root" p:password="111111" />
或者
<bean id="bossDS" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName"><value>oracle.jdbc.OracleDriver</value></property>
<property name="url"><value>jdbc:oracle:thin:@caij-b815c8aab6:1521:cui</value></property>
<property name="username"><value>cuishen</value></property>
<property name="password"><value>cuishen</value></property>
</bean>
改成
<bean id="bossDS"
class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://192.168.126.147:3306/boss?autoReconnect=true&useUnicode=true&characterEncoding=UTF-8"/>
<property name="username" value="root"/>
<property name="password" value="111111"/>
<!--maxActive: 最大连接数量-->
<property name="maxActive" value="150"/>
<!--minIdle: 最小空闲连接-->
<property name="minIdle" value="5"/>
<!--maxIdle: 最大空闲连接-->
<property name="maxIdle" value="20"/>
<!--initialSize: 初始化连接-->
<property name="initialSize" value="30"/>
<!-- 连接被泄露时是否打印 -->
<property name="logAbandoned" value="true"/>
<!--removeAbandoned: 是否自动回收超时连接-->
<property name="removeAbandoned" value="true"/>
<!--removeAbandonedTimeout: 超时时间(以秒数为单位)-->
<property name="removeAbandonedTimeout" value="10"/>
<!--maxWait: 超时等待时间以毫秒为单位 1000等于60秒-->
<property name="maxWait" value="1000"/>
<!-- 在空闲连接回收器线程运行期间休眠的时间值,以毫秒为单位. -->
<property name="timeBetweenEvictionRunsMillis" value="10000"/>
<!-- 在每次空闲连接回收器线程(如果有)运行时检查的连接数量 -->
<property name="numTestsPerEvictionRun" value="10"/>
<!-- 1000 * 60 * 30 连接在池中保持空闲而不被空闲连接回收器线程-->
<property name="minEvictableIdleTimeMillis" value="10000"/>
<property name="validationQuery" value="SELECT 1"/>
</bean>
主要就是
<property name="validationQuery" value="SELECT 1" />
<property name="testOnBorrow" value="true"/>
下面这两行代码在起作用
假如是连接池的话则需要下面的配置
<property name="initialPoolSize" value="10"/>
<property name="maxPoolSize" value="${cache.maxPoolSize}"/>
<property name="testConnectionOnCheckin" value="false"/>
<property name="testConnectionOnCheckout" value="true"/>
<property name="preferredTestQuery" value="SELECT 1"/>
Communications link failure异常解决的更多相关文章
- Communications link failure的解决办法
使用Connector/J连接MySQL数据库,程序运行较长时间后就会报以下错误: Communications link failure,The last packet successfully r ...
- jdbc 连接mysql Communications link failure的解决办法
使用Connector/J连接MySQL数据库,程序运行较长时间后就会报以下错误: Communications link failure,The last packet successfully r ...
- mysql Communications link failure,C3p0的参数详解
MySQL默认一个连接空闲8小时候就会自动断开,而这时程序以为连接还能使用,然后在使用的时候就会出现Communications link failure异常. 这时需要进行两步设置,有时候只设置My ...
- 【Azure 应用服务】App Service 无法连接到Azure MySQL服务，报错：com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
问题描述 App Service使用jdbc连接MySQL服务,出现大量的 Communications link failure: com.mysql.cj.jdbc.exceptions.Com ...
- 异常解决：Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
异常描述 这个异常通常有如下信息: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failu ...
- 解决MySQL连接超时Communications link failure due to underlying exception
最近在用一个MySQL的Java连接池的过程中,连接一晚上不释放,第二天就会造成超时的错误,查了一下原因,原来是因为MySQL默认的空闲等待时间是8个小时,一旦空闲超过8个小时,就会抛出异常.异常文本 ...
- SSH项目过一段时间之后再访问会报一次Could not open Hibernate session for transaction 异常，Caused by: com.mysql.jdbc.CommunicationsException: Communications link failure due to underlyi，再重新方法即可访问成功（通常出现在过了一晚之后再去访问系统）
前端时间到客户那去进行项目的上线测试,将项目部署好之后,运行都是正常的,可是每到了第二天早上访问的时候,就会报一个Could not open Hibernate session for transa ...
- 解决Java程序连接mysql数据库出现CommunicationsException: Communications link failure错误的问题
一.背景 最近在家里捣鼓一个公司自己搭建的demo的时候,发现程序一启动就会出现CommunicationsException: Communications link failure错误,经过一番排 ...
- com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 解决办法
09:00:30.307 [http-8080-6] ERROR org.hibernate.transaction.JDBCTransaction -JDBC begin failed com.my ...
随机推荐
- 洛谷 [P2763]试题库问题
非常舒适的最大流 非常显然的建图方法,然而因为数组开小卡了很长时间 #include <iostream> #include <cstdio> #include <alg ...
- BZOJ 3123: [Sdoi2013]森林 [主席树启发式合并]
3123: [Sdoi2013]森林 题意:一个森林,加边,询问路径上k小值.保证任意时刻是森林 LCT没法搞,树上kth肯定要用树上主席树 加边?启发式合并就好了,小的树dfs重建一下 注意 测试点 ...
- DaemonSet 典型应用场景 - 每天5分钟玩转 Docker 容器技术（129）
Deployment 部署的副本 Pod 会分布在各个 Node 上,每个 Node 都可能运行好几个副本.DaemonSet 的不同之处在于:每个 Node 上最多只能运行一个副本. DaemonS ...
- python3图像识别库安装与使用
pytesseract库的安装 因为用的win10,就直说windows上面的安装了.其实就是pip安装就完事了. $ pip install pytesseract 安装了这个还不算完,得安装Tes ...
- cnblogs的使用
cnblogs的使用 选择使用cnblogs而不是csdn,答案是很明显的.csdn每次创建博客之后会有一段时间的审核期,这大大的影响了用户体验.此外,cnblogs的用户群以及使用模式有着很大的诱惑 ...
- ansible安装
本文来自我的github pages博客http://galengao.github.io/ 即www.gaohuirong.cn 1.配置epel源 wget -O /etc/yum.repos.d ...
- 广告等第三方应用嵌入到web页面方案 之 使用js片段
在自己的项目中嵌入过广告的朋友们可能都用过百度联盟, 只需要嵌入如下一段js代码片段, 就可以在自己的项目中嵌入广告, 来获得收益. <script type="text javasc ...
- eslint规则
碰到eslint报错, 把错误的提示拷贝在这里Ctrl + F找到复制到eslint.js里面就行了. "off"或者0,不启用这个规则 "warn"或者1,出 ...
- MyISAM 和InnoDB 讲解
1.InnoDB和MyISAM是许多人在使用MySQL时最常用的两个表类型,这两个表类型各有优劣,视具体应用而定. 2.基本的差别为:MyISAM类型不支持事务处理等高级处理,而InnoDB类型支持. ...
- Linux服务器上安装MySql数据库（默认安装，密码为空），首次使用需要修改密码
1,在/etc/my.cnf末尾 加入skip-grant-tables,保存,跳过身份验证. 2,重启MySql,使刚才修改的配置生效. 3,终端输入mysql,然后再输入use mysql; 4 ...