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>
posted on 2014-09-16 17:37 spacewalk 阅读(23587) 评论(0) 编辑 收藏 举报