jdbc 调用存储过程并返回值

  CallableStatement cstmt = null;  cstmt = conn.prepareCall("call bat_active_alert(?,?,?)");  cstmt.setString(1,comp_code);  cstmt.setString(2,func_code);  cstmt.registerOutParameter(3, java.sql.Types.INTEGER);//pintSuccess_cnt  cstmt.execute();   int rec_cnt=0;  rec_cnt=cstmt.getInt(3);