myBatis中if test 字符串注意事项

错误写法：

            <if test="userName == 'boshen'">
                AND `USER_NAME` = #{userName}
            </if>

正确写法：

            <if test='userName == "boshen"'>
                AND `USER_NAME` = #{userName}
            </if>

或

            <if test="userName == 'boshen'.toString()">
                AND `USER_NAME` = #{userName}
            </if>