There is no getter for property named 'id' in 'class java.lang.Integer'

     <select id="findUserById" parameterType="int" resultType="User">
        select * from user1 
        <where>
            <if test="id != null and id != ''">
                and id=#{id}
            </if>
        </where>
    </select>

 在測試時報錯：There is no getter for property named 'id' in 'class java.lang.Integer'

 問題分析：Mybatis默認采用ONGL解析參數，所以會自動采用對象樹的形式取integer.id值，引起報錯。

 解決方法：  public User findUserById(@Param("id")int id);說明參數值。