MyBatis 调用存储过程

 

如果存储过程有返回值使用select标签

 

 

<select id="xxx" statementType="CALLABLE" resultType="hashMap">
  	{call 存储过程名称() }
  </select>

 

 

如果存储过程没有返回值使用update标签

 

 <update id="xxx" statementType="CALLABLE">
  	{call 存储过程名称()  }
  </update>

 

 

-------------------

 

另外一个例子

 

如何使用Mybaits调用数据库中的存储过程，下面以Oracle数据库的为例

 

1．在数据库中创建以下的存储过程：

 

create or replace procedure pro_hello(p_user_name in varchar2,p_result out varchar2) is   
begin   
  p_result := 'hello,' || p_user_name;   
end;  

 

2．编写SQL映射文件mapper.xml：

<select id="proHello" statementType="CALLABLE">   
<![CDATA[   
    {call pro_hello (#{p_user_name,mode=IN,jdbcType=VARCHAR},#{result,mode=OUT,jdbcType=VARCHAR})}   
]]>   
</select>  

 

3. 编写JAVA代码调用存储过程

 

public class ProcedureTest {   
           
         public static void main(String[] args) throws IOException {   
            String resource = "mybatis.cfg.xml";   
            Reader reader = Resources.getResourceAsReader(resource);   
            SqlSessionFactory ssf = new SqlSessionFactoryBuilder().build(reader);   
          
            SqlSession session = ssf.openSession();   
          
           try {   
                 Map<String, String> param = new HashMap<String, String>();   
                 param.put("p_user_name", "zhangsan");   
                 String returnValue = (String) session.selectOne("User.proHello", param);   
                 System.out.println("message=" + param.get("p_user_name"));   
                 System.out.println("result=" + param.get("result"));   
                 System.out.println("returnValue=" + returnValue);   
    
           } catch (Exception e) {   
                e.printStackTrace();   
           } finally {   
              session.close();   
          }   
       }   
}  

 

4．执行Java代码，控制台输出结果如下：

 

2012-03-07 20:36:32,406 DEBUG [java.sql.PreparedStatement] -==>  Executing: {call pro_hello(?,?)}   
2012-03-07 20:36:32,406 DEBUG [java.sql.PreparedStatement] -==> Parameters: zhangsan(String)   
message=zhangsan  

 <感谢 http://chenjc-it.iteye.com/blog/1443432>