Mybatis批量添加，删除与修改

1、批量添加元素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)

 1 实例1：
 2 public void batchUpdateStudent(){
 3     List<Integer> ls = new ArrayList<Integer>();
 4     for(int i = 2;i < 8;i++){
 5         ls.add(i);
 6     }
 7     SqlSession session = SessionFactoryUtil.getSqlSessionFactory().openSession();
 8     session.insert("mybatisdemo.domain.Student.batchUpdateStudent",ls);
 9     session.commit();
10     session.close();
11 }
12 <update id="batchUpdateStudent" parameterType="java.util.List">
13     UPDATE STUDENT SET name = "5566" WHERE id IN
14     <foreach collection="list" item="item" index="index" open="(" separator="," close=")" >
15         #{item}
16     </foreach>
17 </update>
18
19 实例2：
20 public void batchUpdateStudentWithMap(){
21     List<Integer> ls = new ArrayList<Integer>();
22     for(int i = 2;i < 8;i++){
23         ls.add(i);
24     }
25     Map<String,Object> map = new HashMap<String,Object>();
26     map.put("idList", ls);
27     map.put("name", "mmao789");
28     SqlSession session = SessionFactoryUtil.getSqlSessionFactory().openSession();
29     session.insert("mybatisdemo.domain.Student.batchUpdateStudentWithMap",map);
30     session.commit();
31     session.close();
32 }
33 <update id="batchUpdateStudentWithMap" parameterType="java.util.Map" >
34     UPDATE STUDENT SET name = #{name} WHERE id IN
35     <foreach collection="idList" index="index" item="item" open="(" separator="," close=")">
36         #{item}
37     </foreach>
38 </update>

3、批量删除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>