MyBatis批量添加、修改和删除

废话不多说了，直接步入正题了。

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

public void batchInsertStudent(){
List ls = new ArrayList();
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 INTO STUDENT (id,name,sex,tel,address)
VALUES 

(#{item.id},#{item.name},#{item.sex},#{item.tel},#{item.address})

 

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

实例1：

public void batchUpdateStudent(){
List ls = new ArrayList();
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 STUDENT SET name = "5566" WHERE id IN

#{item}

实例2：

public void batchUpdateStudentWithMap(){
List ls = new ArrayList();
for(int i = 2;i < 8;i++){
ls.add(i);
}
Map map = new HashMap();
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 STUDENT SET name = #{name} WHERE id IN 
 
#{item} 

 

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

public void batchDeleteStudent(){
List ls = new ArrayList();
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 FROM STUDENT WHERE id IN
 
#{item} 

好了，本文到此结束，希望对大家有所帮助。