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mybatis之The expression 'oredCriteria' evaluated to a null value的解决方法

<if test="example!= null">      <include refid="Example_Where_Clause" /></if>
原因:执行过程中,显示在使用example的时候,里面的criteria为null;将上面的XML用下面替换
<if test="_parameter != null" >      <include refid="Update_By_Example_Where_Clause" /></if>

例子:

<select id="selectByExampleLimit" resultMap="BaseResultMap">        select        <if test="distinct">            distinct        </if>        <include refid="Base_Column_List" />        from Test        <if test="_parameter != null" >            <include refid="Update_By_Example_Where_Clause" />        </if>        <if test="orderByClause != null">            order by ${orderByClause}        </if></select>

 

mybatis之The expression 'oredCriteria' evaluated to a null value的解决方法