myBatis批量添加，修改和删除

wind-cold

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>