Question

调用此方法后，将调用存储过程（它将1000条新记录放入db）。但布尔是假的，为什么？

public void loadTestData() throws SQLException {

    CallableStatement cStmt = connection.prepareCall("{call loadTestData }");

   boolean bool = cStmt.execute();

   if (bool) System.out.println("test data is loaded");
    else System.out.println("test data is not loaded!");
}

程序在这里：

CREATE DEFINER=`root`@`localhost` PROCEDURE `loadTestData`()
BEGIN

 DECLARE x INT;

 delete from user where id<5000;

 SET x = 0;
  WHILE x <= 100 DO
   insert into user (name, description) VALUES( 
        concat("name", x), 
        concat("description", x)
   );
   SET x = x + 1;
  END WHILE;

END

Answer 1

如果您的程序的第一个结果不是ResultSet，则返回值为false。

<强> PreparedStatement.execute()

MySQL存储过程返回false

1 个答案: