问：西部数码的同事,你们好
目前我们项目还处于测试阶段 也没有对外. 莫名其妙的就502了.报如下错误 9:14:21 org.apache.catalina.core.StandardWrapperValve invoke严重: Servlet.service() for servlet mvc-dispatcher threw exceptionjava.net.SocketException: Broken pipe at java.net.SocketOutputStream.socketWrite0(Native Method) at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92) at java.net.SocketOutputStream.write(SocketOutputStream.java:136) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123) at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3302) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1940) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2113) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2568) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2113) at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1364) at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:172) at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:172) at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56) at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70) at org.apache.ibatis.executor.ReuseExecutor.doQuery(ReuseExecutor.java:54) at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98) at sun.reflect.GeneratedMethodAccessor49.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at ,服务器莫名其妙的502了.
答：您好，
请下载logs下日志查看可能数据库驱动导致，可参考http://blog.csdn.net/zhubin215130/article/details/,非常感谢您长期对我司的支持!
问：我需要用多少的驱动包?
答：您好，需要您的程序开发人员协助排查，从报错查看数据库连接对象为空。服务器环境您可以上传探针检查是否和您编译环境相匹配,非常感谢您长期对我司的支持!
