我有一个java应用程序试图在表中插入一行和com.ibatis.common.jdbc.exception.NestedSQLException抛出原因com.mysql.jdbc.exceptions.MySQLIntegrityConstraintViolationException
当我尝试为唯一键约束插入dublicate数据时.

我如何捕获该异常？

解决方法:

要找到根本原因,你可以这样做：

try {
    //insert
} catch (NestedSQLException e) {
    Throwable t = e;
    while(t.getCause() != null) {
        t = t.getCause();
    }
    //in your situation, now t should be MySQLIntegrityConstraintViolationException 
    if (t instanceOf MySQLIntegrityConstraintViolationException) {
        //do something
    }
}