为什么delete或update数据是会停掉？？

Question

which JDBC Driver? DB2? JDBC-ODBC?

Answer 1

servlet:try{
          System.out.println("beforeDel");
          Userinfo.delUserInfo();
          System.out.println("afterDel");
          Userinfo.selAllUserInfo();
          Session.setAttribute("Userinfo",Userinfo);
        }catch(SQLException e){
        response.sendRedirect("../error/errorPage.jsp?errorcode=7");
        }bean: public void delUserInfo() {
   try{
     Connection localconn = DB.openDB();
     PreparedStatement localpstmt = localconn.prepareStatement(sqlDelUserInfo);
     localpstmt.setInt(1,getUserNo());
     localpstmt.executeUpdate();
     localpstmt.close();
     localconn.close();
   }catch(SQLException ex){
     System.out.println(ex.toString());
   }
  }

Answer 2

问题就就是，能打出beforeDel,不能打出afterDel