Springboot 集成JPA 完成接口demo

從事一段時間Android的我，一般都是調用別人的接口來進行相關的開發，可是一直以來對於接口問題和後端開發的同窗爭吵不休，沒法肯定責任到底在誰，最終在這種狀況下，我從新回到本身以前的Java開發，通過了兩個小時的努力，完成了一個以springboot 爲框架，其中集成了jpa，mysql的方式來完成。廢話很少說了，直接上代碼！
其中項目的依賴文件爲 ：
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
            ，
            application.properties  的配置文件爲：

spring.datasource.url=jdbc:mysql://localhost:3306/zhiteng?characterEncoding=UTF-8&serverTimezone=UTC
spring.datasource.username=root
spring.datasource.password=password
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
#配置JPA
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=update

bean 文件爲：

@Entity
public class User {br/>@Column
@Idbr/>@GeneratedValue()
int id;br/>@Column
public String userID;br/>@Column
public String name;br/>@Column
public String password;br/>@Column
public String userName;br/>@Column
public String nikeName;br/>@Column
public int age;br/>@Column
public String address;br/>@Email
@Column
public String Email;br/>@Column
String birthday;br/>@Column
public String userType;br/>@Column
public String userRule;br/>@Column
public String phoneNum;br/>@Column
public String userAccount;

}
JPA ：

public interface UserJpa extends JpaRepository<User, String> {
long countUserByPhoneNum(String phoneNum);
}

Controller：br/>@RestController
public class UserController {br/>@Autowired
UserJpa userJpa;

@RequestMapping(value = register)
public Result register(@RequestParam("userName") String userName, @RequestParam("password") String password, String address, int age, String name,
                       String userAccount, String Email, @RequestParam("userPhone") String userPhone, String nikeName) {
    Result result = new Result();
    long tag = userJpa.countUserByPhoneNum(userPhone);
    if (tag > 0) {
        result.code = 201;
        result.msg = "用戶已存在，能夠直接登陸";
    } else {
        User user = new User();
        user.userID = SerialUtils.getUserId();
        user.name = name;
        if (StringUtils.isEmpty(userAccount)) {
            user.userAccount = userName;
        } else {
            user.userAccount = userAccount;
        }
        user.phoneNum = userPhone;
        user.password = MyMD5Util.getMD5(password);
        if (StringUtils.isEmpty(nikeName)) {
            user.nikeName = "zhiteng" + userPhone.substring(userPhone.length() - 4);
        } else {
            user.nikeName = nikeName;
        }
        user.userName = userName;
        if (StringUtils.isEmpty(address)) {
            user.address = "陝西，渭南";
        } else {
            user.address = address;
        }
        user.age = age;
        user.Email = Email;
        user.userType = UserType.common;
        user.userRule = UserRule.user;
        User u = userJpa.save(user);
        if (null == u) {
            result.code = 202;
            result.data = user;
            result.msg = "註冊失敗";
        } else {
            result.code = 200;
            result.data = user;
            result.msg = "註冊成功";
        }
    }
    return result;
}

}

對於Controller中的各種註解解釋以下：br/>@RestController將返回數據自動格式化爲json文件
@RequestMapping 請求路徑
@RequestParam 必傳參數，
其餘爲非必傳參數