Mybatis添加返回主键ID

1.对应xml文件
<insert id="insert" parameterType="DetectStandard"
useGeneratedKeys="true" keyColumn="id" keyProperty="id">
  insert into t_detect_standard
<trim prefix="(" suffix=")" suffixOverrides="," >
    <if test="id != null" >
      id,
</if>
    <if test="standardCode != null" >
      standard_code,
</if> 
  </trim>
  <trim prefix="values (" suffix=")" suffixOverrides="," >
    <if test="id != null" >
      #{id,jdbcType=INTEGER},
</if>
    <if test="standardCode != null" >
      #{standardCode,jdbcType=VARCHAR},
</if> 
  </trim>
</insert>
2.后台对应获取主键ID：

//添加检测标准
detectStandardMapper.insert(ds);
int standardId = ds.getId();//获得标准ID