MyBatis Bulk Add, modify, and delete _java

No more nonsense, straight to the point.

1. Add element Session.insert in bulk (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 ("Zhejiang province" + 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>

2, Batch modification session. Insert (String string,object o)

Example 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< C15/><foreach collection= "List" item= "item" index= "Index" open= "(" separator= "," close= ")" >
#{item}
" </foreach>
</update>

Example 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>

3, bulk Delete 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>

Well, this concludes the article, I hope to help you.