java - SP不返回结果集

Question

我有一个应该返回代码的存储过程。 PFB 样本 SP。

USE [TEST]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

ALTER PROCEDURE [dbo].[test_sp]
    -- Add the parameters for the stored procedure here
    @id int,
    @name varchar(25), 
    @return_code int    OUTPUT
AS
BEGIN
    select @return_code=1
    return @return_code
END

调用此 SP 的 Java 类:

public int callSP() {

        Connection con = getConnection();
        ResultSet rs = null;
        CallableStatement ct = null;
        int returnCode = -1;
        try {
            ct = con.prepareCall("{call test_sp (?,?,?)}");
            ct.setInt(1, 1);
            ct.setString(2, "divya");
            ct.registerOutParameter(3, java.sql.Types.INTEGER);

            ct.executeQuery();

            returnCode = ct.getInt(3);

            if (returnCode == 0) {
                System.out.println("Success");
            }
        } catch (Exception ex) {
                ex.printStackTrace();
        } finally {
            database.close(rs, ct, con);
        }
        return returnCode;
    }

我在运行此程序时遇到异常。异常发生在 ct.executeQuery();并说，

com.microsoft.sqlserver.jdbc.SQLServerException: The statement did not return a result set.

谁能帮帮我吗？

Answer 1

尝试将返回参数作为调用的标量结果，如下所示:

    ct = con.prepareCall("{? = call test_sp (?,?)}");
    ct.registerOutParameter(1, java.sql.Types.INTEGER);
    ct.setInt(2, 1);
    ct.setString(3, "divya");
    ct.execute();

    returnCode = ct.getInt(1);

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