mybatis批量新增

１，首先在接口里面定义一个方法
int insertBatch(List<User> records);

2,在xml文件中新增方法
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="test.dao.UserMapper" >
  <insert id="insertBatch" parameterType="java.util.List" >
    insert into user (id, name)
    values
      <foreach collection="list" item="item" separator=","> 
     (#{item.id,jdbcType=VARCHAR},  #{item.name,jdbcType=VARCHAR})
       </foreach>
  </insert>
</mapper>
３，可以在ｃｏｎｔｒｏｌｌｅｒ里面进行测试

List<User>list= new arraysList<User>();
  User user1=new User();
  user1.setId(1);
  user1.setName(张三);
  User user2=new User();
  user2.setId(1);
  user2.setName(李四);
  list.add(user1);
  list.add(user2);