Manually throwing exceptions in Java: throw new Exception ("error message") error message acquisition

Of course, you need to capture it first with a try catch, but note that the string in the parentheses of new Exception ("") is actually an exception, so get it with Ex.getcause (). GetMessage ()

1 intDylist = DYDAO.FINDBYHQL ("from zczcsqdy where yxbz = 1 and zcsqid =" +sqid,NULL). Size ();2                     if(dylist <= 0){3 //Logger.error ("no assets added//////////");4 //return 0;5                         Throw NewException ("No assets added, please add again");6                     }7 8 9 Ten  One  A //Catching exceptions -  -  the Try{ - Processservice.donextflow (Getrequest ()); -}Catch(Exception ex) { -Logger.error ("Error:" +ex.getmessage ()); + ex.printstacktrace (); -Setjsonstring ("{success:false,info:\" "+ ex.getcause (). GetMessage () +" \ "}"); +}

Manually throwing exceptions in Java: throw new Exception ("error message") error message acquisition