Відмінності між версіями «Розробка простого RESTfull сервіса засабами Spring Boot»

// src/main/java/com/example/models/User.java
 
package com.example.models;
 
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.validation.constraints.NotNull;
 
@Entity
@Table(name = "users")
public class User {
 
  @Id
  @GeneratedValue(strategy = GenerationType.AUTO)
  private long id;
 
  @NotNull
  private String email;
 
  @NotNull
  private String name;
 
  public User() { }
 
  public User(long id) { 
    this.id = id;
  }
 
  public User(String email, String name) {
    this.email = email;
    this.name = name;
  }
 
  public long getId() {
    return id;
  }
 
  public void setId(long value) {
    this.id = value;
  }
 
  public String getEmail() {
    return email;
  }
 
  public void setEmail(String value) {
    this.email = value;
  }
 
  public String getName() {
    return name;
  }
 
  public void setName(String value) {
    this.name = value;
  } 
}

// src/main/java/com/example/models/Response.java
 
package com.example.models;
 
public class Response {
 
    private String summary;
    private Object result;
 
    public Response(String summary, Object result) {
        this.summary = summary;
        this.result = result;
    }
 
    public String getSummary() {
        return summary;
    }
 
    public void setSummary(String summary) {
        this.summary = summary;
    }
 
    public Object getResult() {
        return result;
    }
 
    public void setResult(Object result) {
        this.result = result;
    }
}

// src/main/java/com/example/models/UserDao.java
 
package com.example.models;
 
import javax.transaction.Transactional;
import org.springframework.data.repository.CrudRepository;
 
@Transactional
public interface UserDao extends CrudRepository<User, Long> {
 
    public User findByEmail(String email);
}

// src/main/java/com/example/controllers/UserController.java
 
package com.example.controllers;
 
import com.example.models.Response;
import com.example.models.User;
import com.example.models.UserDao;
 
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
 
 
@Controller
public class UserController {
 
    @Autowired
    private UserDao userDao;
 
    @RequestMapping("/create")
    @ResponseBody
    public Response create(String email, String name) {
 
        User user = null;
 
        try {
            user = new User(email, name);
            userDao.save(user);
        } catch (Exception e) {
 
            return new Response(e.getMessage(), e);
        }
 
        return new Response("Successfully created new user", user);
    }
 
    @RequestMapping("/get")
    @ResponseBody
    public Response get(long id) {
 
        User user = userDao.findOne(id);
        return new Response( user != null ?  "User successfully received" : "User not found", user);
    }
 
    @RequestMapping("/get-by-email")
    @ResponseBody
    public Response getByEmail(String email) {
 
        User user;
        try {
            user = userDao.findByEmail(email);
        } catch (Exception e) {
            return new Response(e.getMessage(), e);
        }
 
        return new Response( user != null ? "Successfully find user by email" : "User not found", user);
    }
 
    @RequestMapping("/get-all")
    @ResponseBody
    public Response getAll() {
 
        return new Response("Successfully received all users", userDao.findAll());
    }
 
    @RequestMapping("/update")
    @ResponseBody
    public Response updateUser(long id, String email, String name) {
 
        User user = userDao.findOne(id);
 
        if(user != null) {
 
            user.setEmail(email);
            user.setName(name);
            userDao.save(user);
            return new Response("User successfully updated", user);
        }
        else {
            return new Response("User not found", null);
        }
    }
 
    @RequestMapping("/delete")
    @ResponseBody
    public Response delete(long id) {
 
        User user = userDao.findOne(id);
 
        if(user != null) {
 
            userDao.delete(user);
            return new Response("User successfully deleted", user);
        }
        else {
            return new Response("User not found", null);
        }
    }
}

// src/main/java/com/example/Application.java
package com.example;
 
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
 
@SpringBootApplication
public class Application {
 
  public static void main(String[] args) {
    SpringApplication.run(Application.class, args);
  }
 
}