項目摘要:
- 【2020-06-13】第一次更新:爲了更好的整合springcloud,將getUser(Integer id)更新爲getUser(String username),修改了部分代碼。
- 本文是springToolSuit4構建項目,它本質上就是Eclipse,下面以Eclipse爲名稱引用。
- 項目摘要圖
- 項目具體實施:
- 新建maven項目爲根項目,名稱爲user-system,修改pom.xml,完整內容爲:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.7.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.yuji</groupId>
<artifactId>user-system</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>user-system</name>
<packaging>pom</packaging>
<description>Demo project for Spring Boot</description>
<properties>
<project.buid.sourceEncoding>UTF-8</project.buid.sourceEncoding>
<projec.reporting.outputEncoding>UTF-8</projec.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
- 創建user-service項目,並修改pom如下內容:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<groupId>com.yuji</groupId>
<artifactId>user-system</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../user-system/pom.xml</relativePath>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>user-service</artifactId>
<name>user-service</name>
<description>Demo project for Spring Boot</description>
<dependencies>
</dependencies>
</project>
- 在父項目引入該模塊:
<?xml version="1.0" encoding="UTF-8"?>
....
<build>....
</build>
<modules>
<module>../user-service</module>
</modules>
</project>
- springboot【2.2.7.RELEASE】與Jersey整合。
- 在pom導入依賴
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jersey</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>在com.yuji中加入Jersey配置,新建JerseyConfig.java:
package com.yuji;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.server.spring.scope.RequestContextFilter;
import org.springframework.stereotype.Component;
@Component
public class JerseyConfig extends ResourceConfig{
public JerseyConfig() {
register(RequestContextFilter.class);
register(UserResource.class);
}
}
- 新建包com.yuji.entity創建User類:
package com.yuji.entity;
import java.io.Serializable;
public class User implements Serializable{
private static final long serialVersionUID = 1L;
private int id;
private String username;
private String password;
private int age;
private String job;
// 省略get/set
}
}
- 新建包com.yuji.resource創建UserResource類進行測試整合:
package com.yuji.resource;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import com.yuji.entity.User;
@Path("user")
public class UserResource {
@GET
@Produces(MediaType.APPLICATION_JSON)
public User getUser () {
User user = new User();
user.setId(1);
user.setUsername("jack");
user.setAge(12);
user.setJob("java工程師");
return user;
}
}
- 瀏覽器輸入:localhost:8080/user如果正常輸出,則整合成功。
- springboot與mybatis整合
- 在mysql新建一個數據庫user_system,並執行如下語句
CREATE TABLE `user` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`username` varchar (255) DEFAULT NULL,
`password` varchar (255) DEFAULT NULL,
`age` int(11) DEFAULT NULL,
`job` varchar(255) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;
INSERT INTO user VALUES (1, 'jack', '123456', 12, 'java工程師');
- 在pom.xml中導入相關jar包:
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
- 在resource下面創建application-dev.yml加入如下代碼:
server:
port: 8081
spring:
datasource:
username: root
password:
url: jdbc:mysql://localhost:3306/user_system?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=UTC
driver-class-name: com.mysql.cj.jdbc.Driver
mybatis:
mapper-locations: classpath:mapper/*Mapper.xml
type-aliases-package: com.yuji.entity
在application.yml加入如下代碼:
spring:
profiles:
active: dev
#showSql
logging:
level:
com:
yuji:
mapper : debug
- 在UserServiceApplication類加入如下類註解:
@MapperScan("com.yuji.mapper")
- 創建mapper包,創建接口UserMapper類,完整代碼如下:
package com.yuji.mapper;
/*----import----*/
@Repository
public interface UserMapper {
public User getUser(String username);
public List<User> getUsers();
public void deleteUser(Integer id);
public void saveUser(User user);
public void updateUser(User user);
}
- 在resource中創建文件夾mapper並創建userMapper.xml,如下代碼:
<?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="com.yuji.mapper.UserMapper">
<resultMap id="BaseResultMap" type="com.yuji.entity.User">
<result column="id" jdbcType="INTEGER" property="id" />
<result column="username" jdbcType="VARCHAR" property="username" />
<result column="password" jdbcType="VARCHAR" property="password" />
<result column="age" jdbcType="VARCHAR" property="age" />
<result column="job" jdbcType="VARCHAR" property="job" />
</resultMap>
<select id="getUsers" resultType="com.yuji.entity.User">
select * from user
</select>
<select id="getUser" resultType="com.yuji.entity.User">
select * from user where username = #{username}
</select>
<delete id="deleteUser" parameterType="integer">
delete from user where id = #{id}
</delete>
<!-- useGeneratedKeys="true" keyProperty="id" -->
<insert id="saveUser" parameterType="com.yuji.entity.User">
insert into user values (#{id},#{username},#{password},#{age},#{job});
</insert>
<update id="updateUser" parameterType="com.yuji.entity.User">
update user set username=#{username},password=#{password},age=#{age},job=#{job} where id=#{id}
</update>
</mapper>
- 新建service包,新建接口UserService類,完整代碼如下:
package com.yuji.service;
import java.util.List;
import com.yuji.entity.User;
public interface UserService {
public User getUserByUserName(String username);
public List<User> getUsers();
public void deleteUser(Integer id);
public void saveUser(User user);
public void update(User user);
}
- 新建service.impl包,新建UserServiceImpl實現類,並實現接口UserService,完整代碼如下:
package com.yuji.service.impl;
/*-----import-----*/
@Service
public class UserServiceImpl implements UserService{
@Autowired
UserMapper userMapper;
@Override
public User getUserByUserName(String username) {
return userMapper.getUser(username);
}
@Override
public List<User> getUsers() {
return userMapper.getUsers();
}
@Override
public void deleteUser(Integer id) {
userMapper.deleteUser(id);
}
@Override
public void saveUser(User user) {
userMapper.saveUser(user);
}
@Override
public void update(User user) {
userMapper.updateUser(user);
}
}
- 編寫測試類測試是否整合成功:
在測試包創建user.service.test包,並創建UserServiceTest類,完整代碼如下:
package com.yuji.user.service.test;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
/*----other import-----*/
@SpringBootTest
class UserServiceTest {
@Autowired
UserService userService;
@Test
public void getUserTest() {
userService.getUserByUsername("jack");
}
@Test
public void getUsersTest() {
userService.getUsers();
}
@Test
public void saveUserTest() {
User user=new User();
user.setId(2);
user.setUsername("張三");
user.setPassword("123456");
user.setAge(12);
user.setJob("Java工程師");
userService.saveUser(user);
}
@Test
public void updateUserTest() {
User user=new User();
user.setId(2);
user.setUsername("李四");
user.setPassword("13579");
user.setAge(14);
user.setJob("Java工程師");
userService.updateUser(user);
}
@Test
public void deleteUserTest() {
userService.deleteUser(2);
}
}
- 修改resource包下的UserResource類並在postman工具測試連通性,完整代碼如下:
package com.yuji.resource;
import java.util.List;
/*------import------*/
@Path("user")
public class UserResource {
@Autowired
UserService userService;
@GET
@Path("{username}")
@Produces(MediaType.APPLICATION_JSON)
public User getUser(@PathParam("username")String username) {
return userService.getUserByUserName(username);
}
@GET
@Produces(MediaType.APPLICATION_JSON)
public List<User> getAllUser(){
return userService.getUsers();
}
@DELETE
@Path("{id}")
public Boolean deleteUser(@PathParam("id") Integer id) {
userService.deleteUser(id);
return true;
}
@PUT
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
public Boolean saveUser(User user) {
userService.saveUser(user);
return true;
}
@POST
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
public Boolean updateUser(User user) {
userService.updateUser(user);
return true;
}
}
至此,初步的整合基本完成。
- 將該項目推送到git.
- 先在git創建一個空項目。在Eclipse,選擇根項目右鍵,選擇share project,取消頂部勾選。選擇根項目的上一個目錄爲git地址。如下圖:
- 本地commit一次代碼,然後從master分支pull代碼,之後本地新建一個develop分支後pull分支到git。查看git如圖所示則提交完成:
到這裏,整個搭建基本完成。
資料下載地址(包含一份源碼和一個文檔,該文爲最新內容,無需下載文檔,源碼和本文檔會有稍稍微不同,但是都是測試通過的):https://download.csdn.net/download/qq_25337221/12410989
- 參考鏈接:
1.springboot與mybatis整合:https://blog.csdn.net/iku5200/article/details/82856621
本內容由安康學院“雨季”原創。