Spring Boot 搭建简单微服务(REST)

（IDEA），创建maven项目，创建Maven项目对象模型POM
pom.xml

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.rest.test</groupId>
    <artifactId>spring-boot</artifactId>
    <version>1.0-SNAPSHOT</version>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.3.5.RELEASE</version>
    </parent>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-transports-http-jetty</artifactId>
            <version>2.2</version>
        </dependency>
    </dependencies>
</project>

dependencies下的两个依赖，第一个：spring-boot类库，第二个：去除idea自身tomcat容器
然后创建工程：

捕获2.PNG

1:controller，路由管理，可以创建接口，更清晰点
UserController:

@RestController
@RequestMapping("/user")
public class UserController {
    @Autowired
    private UserService userService;

    @RequestMapping("/getUser")
    public Object getUser() {
        Map<String, User> map = new HashMap<String, User>();
        map.put("user", userService.getUserById(123));
        return map;
    }
}

2:dao数据访问层，没有数据库就假数据了
还是 接口+实现类（多态的运用，解耦合）：

public interface UserDao {
    User getPhotoNameById(int id);
}

@Repository("UserDao")
public class UserDaoImpl implements UserDao {

    @Override
    public User getPhotoNameById(int id) {
        User p = new User();
        p.setId(123);
        p.setName("浩然真帅");
        return p;
    }
}

3：entity实体类

public class User {
    private int id;
    private String name;
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
}

4：service业务层：

public interface UserService {
    User getUserById(int id);
}

@Service("UserService")
public class UserServiceImpl implements UserService {
    @Autowired
    private UserDao userdao;
    @Override
    public User getUserById(int id) {
        return userdao.getPhotoNameById(id);
    }
}

5:Application 微服务的启动：

@Configuration
@ComponentScan
@EnableAutoConfiguration
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

6：resource下application.properties
配置端口，因为我的端口8080占用了，也懒得看就配置一下8088

server.port=8088

运行application的main方法：

捕获.PNG

哈哈哈哈，感谢：）