参数为集合时,mybatis3 分页查询问题及其对应的解决方法

当参数为集合时,使用mybatis3分页查询时抛出的异常:java

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.binding.BindingException: Parameter '__frch_item_0' not found. Available parameters are [param1, statuses]

UserMapperTest.java的部分代码(测试用例):spring

@Test
    public void findByStatus() {
        List<Integer> statuses = new ArrayList<Integer>();
        statuses.add(0);
        statuses.add(1);
        statuses.add(2);
        PageProxyBuilder<UserMapper> builder = PageProxyBuilder.newBuilder(UserMapper.class);
        builder.setPageParameter(10, 10);
        List<User> list = builder.createProxy().findByStatus(statuses);
        System.out.println(list.size());
    }

UserMapper.java部分代码:apache

/**
     * 分页获取用户信息列表
     *
     * @param statuses
     * @return
     * @author Kevin
     */
    List<User> findByStatus(@Param("statuses") Collection<Integer> statuses);

UserMapper.xml代码(错误的用法示范):mybatis

<select id="findByStatus" resultMap="BaseResultMap">
        SELECT
        <include refid="Base_Column_List"/>
        FROM ms_borrow_collection
        <where>
            AND status in
            <foreach item="item" index="index" collection="statuses"
                     open="(" separator="," close=")">
                #{item} // 这是错误的用法示范
            </foreach>
        </where>
    </select>

执行测试用例后,后台报本文前的异常。app

后续发现,能够经过下面的这种方式(修改UserMapper.xml)解决这个问题:测试

<select id="findByStatus" resultMap="BaseResultMap">
        SELECT
        <include refid="Base_Column_List"/>
        FROM ms_borrow_collection
        <where>
            AND status in
            <foreach item="item" index="index" collection="statuses"
                     open="(" separator="," close=")">
                #{statuses[${index}]} // 这是正确的用法示范
            </foreach>
        </where>
    </select>
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