mybatis mysql 批量insert 返回主键
作者：互联网
From: https://www.cnblogs.com/xiao-lei/p/6809884.html
Mybatis在插入单条数据的时候有两种方式返回自增主键： mybatis3.3.1支持批量插入后返回主键ID,
首先对于支持自增主键的数据库：useGenerateKeys和keyProperty。
不支持生成自增主键的数据库：<selectKey>。
这里主要说下批量插入数据时如何返回主键ID(注意要将mybatis升到3.3.1)
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public class UserInfo
{
private int userId;
private String userName;
private StringuserPwd;
public long getUserId() {
return userId;
}
public void setUserId(long userId) {
this.userId = userId;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getUserPwd() {
return userPwd;
}
public void setUserPwd(String userPwd) {
this.userPwd = userPwd;
}
}
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Dao
| 1 |
public interface UserDao{
|
| 1 |
int insertTest(List<UserInfo> userInfo);
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| 1 |
}<br>
|
mapper
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<insert id="insertTest" parameterType="java.util.List" useGeneratedKeys="true" keyProperty="userId">
insert into t_sys_course (user_name,user_pwd)
values
<foreach collection="list" item="item" index="index"
separator=",">
(#{item.userName,jdbcType=VARCHAR},#{item.userPwd,jdbcType=VARCHAR})
</foreach>
</insert>
|
serviceImpl
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public List<UserInfo> saveCheckin(List<UserInfo> userInfo) {
userDao.insertCheckin(userInfo);
return userInfo;
}<br>//返回的对象List里面已经包含主键ID
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标签：userName,insert,String,userId,主键,mysql,userPwd,public 来源： https://www.cnblogs.com/joeblackzqq/p/10877058.html