java.sql.SQLException: Could not retrieve transation read-only status server
2016-11-21 18:55
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**异常摘要:**Cannot get a connection, pool error: Could not create a validated object, Could not retrieve transation read-only status server
原因: mysql 的驱动包版本的问题。
描述:
将项目移植到mysql版本为6.0的电脑上面,进行查询操作时,控制台没有报异常,然而当进行插入操作时,便出现了该异常。
上网查资料时显示,mysql 的jar 包版本太低,不支持6.0版本的数据库。上 Mysql 官网http://dev.mysql.com/downloads/connector/j/下载了对应的6.0的jar包。导入相对应的jar包后,发现问题依然存在,多方位查阅的资料显示:jar包版本不对。怀疑在官网下载的 jar 包不对,又再次下载了几个jar包,进行测试后,发现问题依然存在。
确认下载的 jar 包版本正常后,怀疑是不是多个版本 jar 包间发生了冲突。检查build path 发现jar包正常。为确保jar包正确,进入到tomcat目录中,查看引用的jar包是否正确。结果发现,引用中,果然存在多个mysql的jar包,删除非6.0 的jar包进行测试,正常插入,数据正常,问题解决!
解决方法:
(1)官网下载6.0的jar包;
(2)确保已经删除原来的jar包;
异常详细描述:
原因: mysql 的驱动包版本的问题。
描述:
将项目移植到mysql版本为6.0的电脑上面,进行查询操作时,控制台没有报异常,然而当进行插入操作时,便出现了该异常。
上网查资料时显示,mysql 的jar 包版本太低,不支持6.0版本的数据库。上 Mysql 官网http://dev.mysql.com/downloads/connector/j/下载了对应的6.0的jar包。导入相对应的jar包后,发现问题依然存在,多方位查阅的资料显示:jar包版本不对。怀疑在官网下载的 jar 包不对,又再次下载了几个jar包,进行测试后,发现问题依然存在。
确认下载的 jar 包版本正常后,怀疑是不是多个版本 jar 包间发生了冲突。检查build path 发现jar包正常。为确保jar包正确,进入到tomcat目录中,查看引用的jar包是否正确。结果发现,引用中,果然存在多个mysql的jar包,删除非6.0 的jar包进行测试,正常插入,数据正常,问题解决!
解决方法:
(1)官网下载6.0的jar包;
(2)确保已经删除原来的jar包;
异常详细描述:
java.sql.SQLException: Could not retrieve transation read-only status server at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1078) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:951) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:941) at com.mysql.jdbc.ConnectionImpl.isReadOnly(ConnectionImpl.java:3939) at com.mysql.jdbc.ConnectionImpl.isReadOnly(ConnectionImpl.java:3910) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2410) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2377) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2361) at zhu.com.shopping.dao.impl.OrderImpl.createOrder(OrderImpl.java:56) at zhu.com.shopping.servlet.OrderServlet.doPost(OrderServlet.java:49) at zhu.com.shopping.servlet.OrderServlet.doGet(OrderServlet.java:56) at javax.servlet.http.HttpServlet.service(HttpServlet.java:690) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at zhu.com.shopping.filter.LoginFilter.doFilter(LoginFilter.java:70) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at zhu.com.shopping.filter.LoginFilter.doFilter(LoginFilter.java:70) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619) Caused by: java.sql.SQLException: Unknown system variable 'tx_read_only' at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1078) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4190) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4122) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2570) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2731) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2812) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2761) at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1612) at com.mysql.jdbc.ConnectionImpl.isReadOnly(ConnectionImpl.java:3933) ... 27 more status: -1
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