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          ??一站式輕松地調用各大LLM模型接口，支持GPT4、智譜、豆包、星火、月之暗面及文生圖、文生視頻
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                            **UserMapper.java**
~~~
//根據多個id查詢，in的用法
List<User> findByIdList(@Param("ids") List<Integer> ids);
~~~
**UserMapper.xml**
~~~
<select id="findByIdList" resultMap="userMapper">
    select * from t_user
    <where>
        <!-- collection:指定要遍歷的(數據|集合)對象 item: 為當前遍歷的元素指定一個引用 open: 條件左半部分 close: 條件右半部分 separator:每個元素的分割符 -->
        <foreach collection="ids" item="id" open="u_id in (" separator="," close=")">
            #{id}
        </foreach>
    </where>
</select>
~~~



**測試代碼**
~~~
@Test
public void testFindByIds(){
    List<Integer> ids = new ArrayList<>();
    ids.add(15);
    ids.add(16);
    ids.add(17);
    UserMapper mapper = session.getMapper(UserMapper.class);
    System.out.println(mapper.findByIdList(ids));
}
~~~
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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