mybatis SQL片段引用错误! 求大神解答!

在我查询所有用户信息的时候 sql语句报错:
报错信息:

### The error occurred while setting parameters
### SQL: SELECT           FROM user
### Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM user' at line 3
; bad SQL grammar []; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM user' at line 3] with root cause
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM user' at line 3**

这个是sql语句:

<select id="queryAll" resultType="User">
    SELECT <include refid="column" /> FROM user
</select>

这个是sql片段:

<sql id="column">
   <trim suffixOverrides=",">
    <if test="_parameter !=null">
     user_id,
    </if>
    <if test="_parameter !=null">
     user_account,
    </if>
    <if test="_parameter !=null">
     password,
    </if>
    <if test="_parameter !=null">
     user_name,
    </if>
    <if test="_parameter !=null">
     year,
    </if>
    <if test="_parameter !=null">
     email,
    </if>
    <if test="_parameter !=null">
     note,
    </if>
   </trim>
</sql>

应该是取最后一列的时候多了一个逗号

 <if test="_parameter !=null">
     note,
    </if>

改为

     <if test="_parameter !=null">
     note
    </if>

看报错SQL: SELECT FROM user说明你的参数_parameter是空值，导致你一个字段都没有查。