「Java」SQLExceptionの使い方

書式
throw new SQLException(xxx)
使用例

//プレースホルダーuserid
String strSQL ="select * from usertbl where userid = ?";

PreparedStatement pstmt = null;
ResultSet rslt = null;
try {

    //CallableStatementオブジェクトを生成    
       pstmt = conn.prepareCall(strSQL)
       pstmt.setString(1,"202107");
       //ResultSetオブジェクトを返す
       rslt = pstmt.executeQuery();
       
       if(!rslt.next()) {
         throw new SQLException("not exist");
       
       }
       
       

 } catch(Exception e){
   throw new SQLException("error" + e.getMessage());
}

 

Java

Posted by arkgame