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JDBC异常总结

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2016-06-07 15:55:401076browse

1、异常一 （1）详情如下 com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Data source rejected establishment of connection:message from server:Too many connections （2）异常原因 连接数数目超过MySQL规定的最大连接数或者连

1、异常一

（1）详情如下

com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException:

Data source rejected establishment of connection:message from server:"Too many connections"

（2）异常原因

连接数数目超过MySQL规定的最大连接数或者连接后未关闭

（3）解决办法

1、修改MySQL最大连接数

2、在代码中，对conn等进行关闭

2、异常二

（1）详细情况

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