ibatis如何取得存储过程的返回值

相关代码如下:
xml 代码
<parameterMap class="map" id="swapParameters">  
    <parameter property="namestr"  javaType="java.lang.String" jdbcType="varchar" mode="IN"/>  
    <parameter property="returnid"  javaType="java.lang.Integer" jdbcType="int" mode="OUT"/>  
</parameterMap>  
<procedure id="insertNameByProcedure" parameterMap="swapParameters">  
    {call UP_GETINSERTEDIDENTITY_TT(?,?)}   
</procedure>  

sql 代码
CREATE PROCEDURE `UP_GETINSERTEDIDENTITY_TT`(inname VARCHAR(20), OUT returnid INTEGER(11))   
    NOT DETERMINISTIC   
    SQL SECURITY INVOKER   
    COMMENT ''  
BEGIN  
     insert into `tt`(NAME) values(inname);   
     select LAST_INSERT_ID() into returnid ;   
END;  

java 代码
Integer returnid = null;   
HashMap<String,Object> paramMap = new HashMap<String,Object>();   
paramMap.put("namestr", insertname);   
paramMap.put("returnid", returnid);   
this.getSqlMapClientTemplate().queryForObject("insertNameByProcedure", paramMap);   
return (Integer)paramMap.get("returnid");