SpringBoot中项目结构的项目实践

myproject/
├── src/
│   ├── main/
│   │   ├── java/
│   │   ├── resources/
│   │   └── webapp/
│   └── test/
├── pom.xml
└── README.md

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0">
    <modelVersion>4.0.0</modelVersion>
    
    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.0</version>
    </parent>
    
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>
</project>

com.example.project/
├── config/          // 配置类
├── controller/      // 控制器
├── service/         // 服务层
│   ├── impl/       // 服务实现
├── repository/      // 数据访问层
├── model/          // 数据模型
│   ├── entity/     // 实体类
│   ├── dto/        // 数据传输对象
└── util/           // 工具类

package com.example.project;

@SpringBootApplication
public class Application {
    
    @Bean
    public CommandLineRunner commandLineRunner(ApplicationContext ctx) {
        return args -> {
            System.out.println("Application started!");
        };
    }
    
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

resources/
├── application.yml
├── application-dev.yml
├── application-prod.yml
├── static/
│   ├── css/
│   ├── js/
│   └── images/
└── templates/
    └── pages/

# application.yml
spring:
  profiles:
    active: dev
    
---
# application-dev.yml
spring:
  config:
    activate:
      on-profile: dev
  datasource:
    url: jdbc:h2:mem:testdb
    
---
# application-prod.yml
spring:
  config:
    activate:
      on-profile: prod
  datasource:
    url: jdbc:mysql://production-server/db

src/test/java/com/example/project/
├── controller/
│   └── UserControllerTest.java
├── service/
│   └── UserServiceTest.java
└── repository/
    └── UserRepositoryTest.java

@SpringBootTest
class UserServiceTest {
    
    @Autowired
    private UserService userService;
    
    @Test
    void testFindById() {
        User user = userService.findById(1L);
        assertNotNull(user);
        assertEquals("test", user.getName());
    }
}

@SpringBootTest
@AutoConfigureMockMvc
class UserControllerIntegrationTest {
    
    @Autowired
    private MockMvc mockMvc;
    
    @Test
    void testGetUser() throws Exception {
        mockMvc.perform(get("/api/users/1"))
               .andExpect(status().isOk())
               .andExpect(jsonPath("$.name").value("test"));
    }
}

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <configuration>
                <excludes>
                    <exclude>
                        <groupId>org.projectlombok</groupId>
                        <artifactId>lombok</artifactId>
                    </exclude>
                </excludes>
            </configuration>
        </plugin>
    </plugins>
</build>

FROM openjdk:11-jdk-slim
VOLUME /tmp
ARG JAR_FILE=target/*.jar
COPY ${JAR_FILE} app.jar
ENTRYPOINT ["java","-jar","/app.jar"]

version: '3'
services:
  app:
    build: .
    ports:
      - "8080:8080"
    environment:
      - SPRING_PROFILES_ACTIVE=prod
    depends_on:
      - db
  db:
    image: mysql:8.0
    environment:
      - MYSQL_ROOT_PASSWORD=root
      - MYSQL_DATABASE=testdb