04、调用存储过程抛:The parameter '@JLBH' in the procedure 'SAVE_TEST' was not declared as an OUTPUT paramete

一、异常描述:

在mybatis中调用存储过程抛:

The parameter '@JLBH' in the procedure 'SAVE_TEST' was not declared as an OUTPUT parameter

存储过程SQL语句:

Create Procedure dbo.SAVE_TEST @NEW_JLBH int OutPut,
                                     @JLBH int

二、Java代码:

对象pojo:

package com.yandype.domain.jinli.hnfb;

import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@NoArgsConstructor
public class CashRegister {
    // 入参
    private Integer jlbh;
    // 出参
    private Integer newJlbh;

    public CashRegister(Integer jlbh) {
        this.jlbh = jlbh;
    }
}

mapper接口:

package com.yandype.jinli.dao.hnfb;

import com.yandype.common.mappers.MyMapper;
import com.yandype.domain.jinli.hnfb.CashRegister;
import com.yandype.domain.jinli.hnfb.CashRegisterParam;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;

@Repository
@Mapper
public interface CashRegisterParamMapper extends MyMapper {

    /**
     * 调用过程:
     *    Create Procedure dbo.SAVE_TEST @NEW_JLBH int OutPut, @JLBH int
     */
    void createCashRegister(CashRegister cashRegister);
}

mapper.xml:





    
    

测试:

@Test
public void createCashRegisterTest(){
    CashRegister cashRegister = new CashRegister(32);
    cashRegisterParamMapper.createCashRegister(cashRegister);
    System.out.println(cashRegister);
}

运行测试就抛:The parameter '@JLBH' in the procedure 'SAVE_TEST' was not declared as an OUTPUT parameter.

根据这个异常提示,说 JLBH 它是个未声明的输出参数。可是,JLBH 它明明是输入参数。到了这里怎么会是输出参数呢?

原来,创建存储过程的SQL语句,输出和输入参数和mapper.xml 里面的配置 顺序不一样。你可以发现,在 mapper.xml配置

里面 JLBH 放在第一个位置了。这样,就难怪每次运行测试抛 JLBH 未声明它是个输出参数了。

三、解决方案:

存储过程应该,严格按照存储过程的SQL语句入参,出参顺序一致!!!把mapper.xml 参数位置保持和存储过程的SQL位置一致就可以了:





    
    

 

 

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