<insert id="insert" parameterType="Spares"  
    useGeneratedKeys="true" keyProperty="id"> 
    insert into spares(spares_id,spares_name, 
      spares_type_id,spares_spec) 
    values(#{id},#{name},#{typeId},#{spec}) 
  </insert> 

/** 
 * 新增备件 

 * @param spares 
 * @return 
 */ 
@RequestMapping(value = "/insert") 
@ResponseBody 
public JsonResponse insert(Spares spares) { 
  int count = sparesService.insert(spares); 
  System.out.println("共插入" + count + "条记录！" 
      + "\n刚刚插入记录的主键自增长值为：" + spares.getId()); 

  <insert id="insert" parameterType="Person">
    <selectKey keyProperty="id" resultType="long">
      select LAST_INSERT_ID()
    </selectKey>
    insert into person(name,pswd) values(#{name},#{pswd})
  </insert>