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...