myBatis批量添加，修改和删除

1、批量添加元素session.insert(String string，Object o)

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public void batchInsertStudent(){  
    List<Student> ls = new ArrayList<Student>();  
    for(int i = 5;i < 8;i++){  
        Student student = new Student();  
        student.setId(i);  
        student.setName("maoyuanjun" + i);  
        student.setSex("man" + i);  
        student.setTel("tel" + i);  
        student.setAddress("浙江省" + i);  
        ls.add(student);  
    }  
    SqlSession session = SessionFactoryUtil.getSqlSessionFactory().openSession();  
    session.insert("mybatisdemo.domain.Student.batchInsertStudent", ls);  
    session.commit();  
    session.close();  
}  
  
<insert id="batchInsertStudent" parameterType="java.util.List">  
    INSERT INTO STUDENT (id,name,sex,tel,address)  
    VALUES   
    <foreach collection="list" item="item" index="index" separator="," >  
        (#{item.id},#{item.name},#{item.sex},#{item.tel},#{item.address})  
    </foreach>  
</insert>  

2、批量修改session. insert (String string,Object o)

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实例1：  
public void batchUpdateStudent(){  
    List<Integer> ls = new ArrayList<Integer>();  
    for(int i = 2;i < 8;i++){  
        ls.add(i);  
    }  
    SqlSession session = SessionFactoryUtil.getSqlSessionFactory().openSession();  
    session.insert("mybatisdemo.domain.Student.batchUpdateStudent",ls);  
    session.commit();  
    session.close();  
}  
<update id="batchUpdateStudent" parameterType="java.util.List">  
    UPDATE STUDENT SET name = "5566" WHERE id IN  
    <foreach collection="list" item="item" index="index" open="(" separator="," close=")" >  
        #{item}  
    </foreach>  
</update>  
  
实例2：  
public void batchUpdateStudentWithMap(){  
    List<Integer> ls = new ArrayList<Integer>();  
    for(int i = 2;i < 8;i++){  
        ls.add(i);  
    }  
    Map<String,Object> map = new HashMap<String,Object>();  
    map.put("idList", ls);  
    map.put("name", "mmao789");  
    SqlSession session = SessionFactoryUtil.getSqlSessionFactory().openSession();  
    session.insert("mybatisdemo.domain.Student.batchUpdateStudentWithMap",map);  
    session.commit();  
    session.close();  
}  
<update id="batchUpdateStudentWithMap" parameterType="java.util.Map" >  
    UPDATE STUDENT SET name = #{name} WHERE id IN   
    <foreach collection="idList" index="index" item="item" open="(" separator="," close=")">   
        #{item}   
    </foreach>  
</update>  

3、批量删除session.delete(String string,Object o)

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public void batchDeleteStudent(){  
    List<Integer> ls = new ArrayList<Integer>();  
    for(int i = 4;i < 8;i++){  
        ls.add(i);  
    }  
    SqlSession session = SessionFactoryUtil.getSqlSessionFactory().openSession();  
    session.delete("mybatisdemo.domain.Student.batchDeleteStudent",ls);  
    session.commit();  
    session.close();  
}  
<delete id="batchDeleteStudent" parameterType="java.util.List">  
    DELETE FROM STUDENT WHERE id IN  
    <foreach collection="list" index="index" item="item" open="(" separator="," close=")">   
        #{item}   
    </foreach>  
</delete>