at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [na:1.7.0_95] at java.util.concurrent.FutureTask.run(FutureTask.java:262) [na:1.7.0_95] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_95] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_95] at java.lang.Thread.run(Thread.java:745) [na:1.7.0_95] Caused by: java.sql.SQLException: Unknown system variable 'tx_read_only' at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1086) ~[mysql-connector-java-5.1.29.jar:na] at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4237) ~[mysql-connector-java-5.1.29.jar:na] at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4169) ~[mysql-connector-java-5.1.29.jar:na] at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2617) ~[mysql-connector-java-5.1.29.jar:na] at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2778) ~[mysql-connector-java-5.1.29.jar:na] at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2828) ~[mysql-connector-java-5.1.29.jar:na] at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2777) ~[mysql-connector-java-5.1.29.jar:na] at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1651) ~[mysql-connector-java-5.1.29.jar:na] at com.mysql.jdbc.ConnectionImpl.isReadOnly(ConnectionImpl.java:3966) ~[mysql-connector-java-5.1.29.jar:na] ... 556 common frames omitted 2016-03-08 04:27:02.626 [localhost-startStop-1] INFO com.alibaba.druid.pool.DruidDataSource - {dataSource-5} inited 2016-03-08 04:27:02.758 [localhost-startStop-1] ERROR com.alibaba.druid.pool.DruidDataSource - init datasource error java.sql.SQLException: Could not retrieve transation read-only status server at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1086) ~[mysql-connector-java-5.1.29.jar:na] at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) ~[mysql-connector-java-5.1.29.jar:na] at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) ~[mysql-connector-java-5.1.29.jar:na] at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) ~[mysql-connector-java-5.1.29.jar:na] at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:951) ~[mysql-connector-java-5.1.29.jar:na] at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:941) ~[mysql-connector-java-5.1.29.jar:na]
java.sql.SQLException: Could not retrieve transation read-only status serverphp
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1086) ~[mysql-connector-java-5.1.29.jar:na]java
是mysql數據庫和你使用的數據庫的驅動包的版本存在問題mysql
把jar包的版本換了,就行了sql
鏈接數據庫書出現以上的錯誤,換了一些mysql不一樣版本的jar包就行了,這是mysql數據庫與以爲不錯版本的兼容問題,我電腦上安裝的是mysql6.0,jdbc用的是5.1.6的版本,換了一下其餘的就OK了數據庫
把jar包換成 mysql-connector-java-5.0.8-bin.jar 就行了app