How to get a specific section in a message exception in java?

Question

I need to know how to get a specific section of an message generated by an exception in java, in debug mode, I have obtained the value I need, which attached image, but I need get that data in the code to generate a "Switch", I require something like this:

try 
{

processes .... 

} catch (SQLException ex) {

string reason = ex.**(how to get the failure reason)**; 

switch (reason) {

           case "_bt_check_unique": 

                       JOptionPane.showMessageDialog (null, "Error, the record already exists."); 

           break; 

} 

Answer 1

您将要在异常对象上调用getStackTrace() ，然后在返回的数组中的StackTraceElement对象上使用各种getter方法。