二.Spring boot食用指南:结合Jpa(Hibernate) 构建MVC架构

1.POM依赖

<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.github.carter659</groupId>
    <artifactId>Demo02-JPA</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.2.RELEASE</version>
    </parent>
    <name>Demo02-JPA</name>
    <url>http://maven.apache.org</url>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
    </properties>


    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>

        <!--##############  JPA 相关包   ##############  -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <!-- MYSQL 连接-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

2.项目树及各层快速食用

• 表结构
  
• 项目树
  
• 配置文件

#服务端口
server.port=8080
# 地址
spring.datasource.url=jdbc:mysql://localhost:3306/supervisory-console?characterEncoding=utf8&useSSL=true
# 账户
spring.datasource.username=root
# 密码
spring.datasource.password=123456
# 显示执行SQL语句
spring.jpa.show-sql=true
#############更多的相关配置自行查阅#############

• Entity(User.java)

@Entity
@Table(name = "user")
public class User implements Serializable {
    /** serialVersionUID. */
    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue
    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;
    }
}

• Dao(ITestDao.java)

public interface ITestDao extends JpaRepository<User, Integer> {
    List<User> findByName(String name);
}

• Service(TestService.java)

@Service
public class TestService {
    @Autowired
    ITestDao testDao;
    public List<User> getUsers(String name){
        return  testDao.findByName(name);
    }
}

• Controller(TestController)

@RestController
public class TestController {
    @Autowired
    TestService service;
    @RequestMapping("/test")
    public List<User> getUserList(@RequestParam String name){
        return service.getUsers(name);
    }
}

• App.java

@SpringBootApplication
public class App {
    public static void main(String[] args) {
        SpringApplication.run(App.class, args);
    }
}

3.运行

2条

1条

4.常用JPA属性表达式

GitHub：https://github.com/AlexanderL...