Mybatis问题：There is no getter for property named 'Id' in 'class java.lang.String'

    <select id="getRiskMember" resultMap="BaseResultMap" parameterType="String"resultMap="BaseResultMap">        <include refid="selectMember"/>        and safetylevel > 1        and stauts = 1        <if test="username != null">            and username = #{username}         </if>    </select>

解决办法：

<select id="getRiskMember" resultMap="BaseResultMap" parameterType="String">        <include refid="selectMember"/>        and safetylevel > 1        and stauts = 1        <if test="_parameter != null">            and username = #{username}         </if>    </select>