Springboot 集成JPA 完成接口demo

從事一段時(shí)間Android的我，通常都是調(diào)用別人的接口來進(jìn)行相關(guān)的開發(fā)，但是一直以來對(duì)于接口問題和后端開發(fā)的同學(xué)爭吵不休，無法確定責(zé)任到底在誰，最終在這種情況下，我重新回到自己之前的Java開發(fā)，經(jīng)過了兩個(gè)小時(shí)的努力，完成了一個(gè)以springboot 為框架，其中集成了jpa，mysql的方式來完成。廢話不多說了，直接上代碼！
其中項(xiàng)目的依賴文件為 ：
<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  的配置文件為：

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 文件為：

@Entity
public class User {@Column
br/>@Column
br/>@GeneratedValue()
br/>@Column
br/>@Column
br/>@Column
br/>@Column
br/>@Column
br/>@Column
br/>@Column
br/>@Email
public String Email;@Column
br/>@Column
br/>@Column
br/>@Column
br/>@Column
br/>@Column

}
JPA ：

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

Controller：@RestController
br/>@RestController
br/>@Autowired

@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，可以直接登錄";
    } 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 = "陜西，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 = "注冊(cè)失敗";
        } else {
            result.code = 200;
            result.data = user;
            result.msg = "注冊(cè)成功";
        }
    }
    return result;
}

}

對(duì)于Controller中的各類注解解釋如下：@RestController將返回?cái)?shù)據(jù)自動(dòng)格式化為json文件
br/>@RestController將返回?cái)?shù)據(jù)自動(dòng)格式化為json文件
@RequestParam 必傳參數(shù)，
其他為非必傳參數(shù)