spring boot mongodb example with maven

Pom.xml

<?xml version="1.0"?>

-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0">

<modelVersion>4.0.0</modelVersion>

<groupId>com.spring-boot-mongodb</groupId>

<artifactId>Spring-Boot-Mongo</artifactId>

<packaging>war</packaging>

<version>0.0.1-SNAPSHOT</version>

<name>Spring-Boot-Mongo Maven Webapp</name>

<url>http://maven.apache.org</url>


-<parent>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-parent</artifactId>

<version>1.5.9.RELEASE</version>

<relativePath/>

<!-- lookup parent from repository -->


</parent>


-<properties>

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

<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-starter-data-mongodb</artifactId>

</dependency>

</dependencies>


-<build>


-<plugins>


-<plugin>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-maven-plugin</artifactId>

</plugin>

</plugins>

<finalName>Spring-Boot-Mongo</finalName>

</build>

</project>

Application.properties

logging.level.org.springframework.web=DEBUG

#Mongo
spring.data.mongodb.host=localhost
spring.data.mongodb.port=27017
spring.data.mongodb.database=sampledb

UserRepository.java

package com.candidjava.spring.repository;

import org.springframework.data.repository.CrudRepository;
import com.candidjava.spring.bean.User;
public interface UserRepository extends CrudRepository<User, String>{

}

UserController.java

package com.candidjava.spring.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PatchMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.util.UriComponentsBuilder;
import com.candidjava.spring.bean.User;
import com.candidjava.spring.service.UserService;

@RestController
@RequestMapping(value={"/","/user"})
public class UserController {
   @Autowired
   UserService userService;
   @GetMapping(value="/",produces = MediaType.APPLICATION_JSON_VALUE)
   public String get(){
      return "Please give url as Spring-Boot-Rest/user/get";
      
   }
    @GetMapping(value = "/{id}", produces = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<User> getUserById(@PathVariable("id") String id) {
        System.out.println("Fetching User with id " + id);
        User user = userService.findById(id);
        if (user == null) {
            return new ResponseEntity<User>(HttpStatus.NOT_FOUND);
        }
        return new ResponseEntity<User>(user, HttpStatus.OK);
    }
    
    @PostMapping(value="/create",headers="Accept=application/json")
    public ResponseEntity<Void> createUser(@RequestBody User user, UriComponentsBuilder ucBuilder){
        System.out.println("Creating User "+user.getName());
        userService.createUser(user);
        HttpHeaders headers = new HttpHeaders();
        headers.setLocation(ucBuilder.path("/user/{id}").buildAndExpand(user.getId()).toUri());
        return new ResponseEntity<Void>(headers, HttpStatus.CREATED);
    }

    @GetMapping(value="/get", headers="Accept=application/json")
    public List<User> getAllUser() {   
     List<User> tasks=userService.getUser();
     return tasks;
   
    }

   @PutMapping(value="/update", headers="Accept=application/json")
   public ResponseEntity<String> updateUser(@RequestBody User currentUser)
   {
      System.out.println("sd");
   User user = userService.findById(currentUser.getId());
   if (user==null) {
      return new ResponseEntity<String>(HttpStatus.NOT_FOUND);
   }
   userService.update(currentUser, currentUser.getId());
   return new ResponseEntity<String>(HttpStatus.OK);
   }
   
   @DeleteMapping(value="/{id}", headers ="Accept=application/json")
   public ResponseEntity<User> deleteUser(@PathVariable("id") String id){
      User user = userService.findById(id);
      if (user == null) {
         return new ResponseEntity<User>(HttpStatus.NOT_FOUND);
      }
      userService.deleteUserById(id);
      return new ResponseEntity<User>(HttpStatus.NO_CONTENT);
   }
   
   @PatchMapping(value="/{id}", headers="Accept=application/json")
   public ResponseEntity<User> updateUserPartially(@PathVariable("id") String id, @RequestBody User currentUser){
      User user = userService.findById(id);
      if(user ==null){
         return new ResponseEntity<User>(HttpStatus.NOT_FOUND);
      }
      User usr = userService.updatePartially(currentUser, id);
      return new ResponseEntity<User>(usr, HttpStatus.OK);
   }
}

User.java

package com.candidjava.spring.bean;

import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;


@SuppressWarnings("serial")
@Document(collection = "user")
public class User  extends BaseEntity{

   
   private String country;
   
   private String name;
   
   public User(){
      
   }
   public User(String country, String name){
      this.country = country;
      this.name = name;
   }

   public String getName() {
      return name;
   }

   public void setName(String name) {
      this.name = name;
   }

   public String getCountry() {
      return country;
   }

   public void setCountry(String country) {
      this.country = country;
   }

}

BaseEntity.java

package com.candidjava.spring.bean;

import java.io.Serializable;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;

   @SuppressWarnings("serial")
   @Document
   public abstract class BaseEntity implements Serializable {
       @Id
       private String id;

      public String getId() {
         return id;
      }

      public void setId(String id) {
         this.id = id;
      }
       

   }

UserService.java

package com.candidjava.spring.service;

import java.util.List;
import com.candidjava.spring.bean.User;

public interface UserService {
   public void createUser(User user);
   public List<User> getUser();
   public User findById(String id);
   public User update(User user, String l);
   public void deleteUserById(String id);
   public User updatePartially(User user, String id);
}

UserServiceImp.java

package com.candidjava.spring.service;

import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.candidjava.spring.bean.User;
import com.candidjava.spring.repository.UserRepository;

@Service
@Transactional
public class UserServiceImp implements UserService {
   @Autowired
   UserRepository userRepository;

   public void createUser(User user) {
      // TODO Auto-generated method stub
      userRepository.save(user);
   }

   public List<User> getUser() {
      // TODO Auto-generated method stub
      return (List<User>) userRepository.findAll();
   }

   public User findById(String id) {
      // TODO Auto-generated method stub
      return userRepository.findOne(id);
   }

   public User update(User user, String l) {
      // TODO Auto-generated method stub
      return userRepository.save(user);
   }

   public void deleteUserById(String id) {
      // TODO Auto-generated method stub
      userRepository.delete(id);
   }

   public User updatePartially(User user, String id) {
      // TODO Auto-generated method stub
      User usr = findById(id);
      usr.setCountry(user.getCountry());
      return userRepository.save(usr);
   }



}

Application.java

package com.candidjava;

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);
   }

}

Output

Request
	method:post
	endpoint: http://localhost:8080/user/create
	Content-Type:application/json
	body: {
			"country":"India",
			"name":"Mathan"
		   }
		   
Response
	Status: 201
	

Request
	method:GET
	endpoint: http://localhost:8080/user/get
	Content-Type:application/json
		   
Response
	Status: 200
	content: [{"id":"5afec0ad72637160400936b6","country":"India","name":"Mathan"}]

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