springboot + mybatis（注解版）

悠悠 2022-05-29 06:18 303阅读 0赞

1.文件目录

![Image 1][]

2.App.java

package com.app ;

import org.mybatis.spring.annotation.MapperScan ;

import org.springframework.boot.SpringApplication ;

import org.springframework.boot.autoconfigure.EnableAutoConfiguration ;

import org.springframework.context.ApplicationContext ;

import org.springframework.context.annotation.ComponentScan ;

/\*\*

\* Created by Administrator on 2018/3/14.

\*/

@ComponentScan ( basePackages = \{  "com.controller" , "com.service" \})

@MapperScan ( basePackages = "com.mapper" )

@EnableAutoConfiguration

public class App \{

public static void main (String\[\] args) \{

SpringApplication. *run* (App. class, args) ;

3.controller

package com.controller ;

import com.pojo.User ;

import com.service.UserService ;

import org.springframework.beans.factory.annotation.Autowired ;

import org.springframework.web.bind.annotation.RequestMapping ;

import org.springframework.stereotype.Controller ;

import org.springframework.web.bind.annotation.ResponseBody ;

import java.util.List ;

/\*\*

\* Created by Administrator on 2018/3/14.

\*/

@Controller

public class UserController \{

@Autowired

private UserService userService ;

@RequestMapping ( "/index" )

public String index ()\{

return "index" ;

@ResponseBody

@RequestMapping ( "/getUser" )

public List<User> getUser ()\{

List<User> users = userService .getAllUser() ;

return users ;

4.mapper

package com.mapper ;

import com.pojo.User ;

import org.apache.ibatis.annotations.Mapper ;

import org.apache.ibatis.annotations.Select ;

import java.util.List ;

/\*\*

\* Created by Administrator on 2018/3/14.

\*/

@Mapper

public interface UserMapper \{

@Select ( "select \* from user" )

List<User> getAllUser () ;

5.pojo

package com.pojo ;

/\*\*

\* Created by Administrator on 2018/3/14.

\*/

public class User \{

private Integer id ;

private String username ;

private String mobile ;

private Integer role ;

private Integer status ;

public Integer getId () \{

return id ;

public void setId (Integer id) \{

this . id = id ;

public String getUsername () \{

return username ;

public void setUsername (String username) \{

this . username = username ;

public String getMobile () \{

return mobile ;

public void setMobile (String mobile) \{

this . mobile = mobile ;

public Integer getRole () \{

return role ;

public void setRole (Integer role) \{

this . role = role ;

public Integer getStatus () \{

return status ;

public void setStatus (Integer status) \{

this . status = status ;

6.UserService

package com.service ;

import com.pojo.User ;

import java.util.List ;

/\*\*

\* Created by Administrator on 2018/3/14.

\*/

public interface UserService \{

List<User> getAllUser () ;

7.UserServiceImpl

package com.service ;

import com.mapper.UserMapper ;

import com.pojo.User ;

import org.springframework.beans.factory.annotation.Autowired ;

import org.springframework.stereotype.Service ;

import java.util.List ;

/\*\*

\* Created by Administrator on 2018/3/15.

\*/

@Service

public class UserServiceImpl implements UserService \{

@Autowired

private UserMapper usermapper ;

@Override

public List<User> getAllUser () \{

return usermapper .getAllUser() ;

8.application.properties

spring.mvc.view.prefix = /WEB-INF/jsp/

spring.mvc.view.suffix = .jsp

spring.datasource.url = jdbc:mysql://localhost:3306

spring.datasource.username = root

spring.datasource.password = root

spring.datasource.driver-class-name = com.mysql.jdbc.Driver

9.index.jsp

略

10.web.xml

略。（保留创建出来的样子）

11.pom.xml

<? xml version ="1.0" encoding ="UTF-8" ?>

<project xmlns ="[http://maven.apache.org/POM/4.0.0"][http_maven.apache.org_POM_4.0.0];

xmlns: xsi ="[http://www.w3.org/2001/XMLSchema-instance"][http_www.w3.org_2001_XMLSchema-instance];

xsi :schemaLocation ="[http://maven.apache.org/POM/4.0.0][http_maven.apache.org_POM_4.0.0 1][http://maven.apache.org/xsd/maven-4.0.0.xsd"][http_maven.apache.org_xsd_maven-4.0.0.xsd]; >

<groupId> com.springboot </groupId>

<artifactId> springboot-mybatis </artifactId>

<version> 1.0-SNAPSHOT </version>

<groupId> org.springframework.boot </groupId>

<artifactId> spring-boot-starter-parent </artifactId>

<version> 1.5.3.RELEASE </version>

</parent>

<groupId> org.springframework.boot </groupId>

<artifactId> spring-boot-starter-web </artifactId>

</dependency>

<groupId> javax.servlet </groupId>

</dependency>

<groupId> org.springframework.boot </groupId>

<artifactId> spring-boot-starter-tomcat </artifactId>

</dependency>

<groupId> org.apache.tomcat.embed </groupId>

<artifactId> tomcat-embed-jasper </artifactId>

</dependency>

<groupId> mysql </groupId>

<artifactId> mysql-connector-java </artifactId>

</dependency>

<groupId> org.mybatis.spring.boot </groupId>

<artifactId> mybatis-spring-boot-starter </artifactId>

</dependency>

</dependencies>

</project>

[Image 1]: 
[http_maven.apache.org_POM_4.0.0]: http://maven.apache.org/POM/4.0.0%22
[http_www.w3.org_2001_XMLSchema-instance]: http://www.w3.org/2001/XMLSchema-instance%22
[http_maven.apache.org_POM_4.0.0 1]: http://maven.apache.org/POM/4.0.0
[http_maven.apache.org_xsd_maven-4.0.0.xsd]: http://maven.apache.org/xsd/maven-4.0.0.xsd%22