1. 批量新增元素session.insert(String string，Object o)

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)

例項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>

例項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. 批量刪除session.delete(String string,Object o)

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>