Download Mongo DB From here:
Mongo DB Download
After download you need to install and open like below:
After this you need to click on connect then click on create database then enter collection and database name like below:
Now your database and collection is successfully created like below:
Project Structure:
SpringBootMongoDbApplication.java
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpringBootMongoDbApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootMongoDbApplication.class, args);
}
}
ImageController.java
package com.example.demo.controller;
import java.io.IOException;
import org.bson.BsonBinarySubType;
import org.bson.types.Binary;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import com.example.demo.model.ProfileImage;
import com.example.demo.repository.ImageRepo;
@RestController
public class ImageController {
@Autowired
private ImageRepo imageRepo;
@PostMapping("/image")
public ProfileImage imageUpload(@RequestParam("image") MultipartFile file) throws IOException {
System.out.println(file.getOriginalFilename());
System.out.println(file.getSize());
ProfileImage profileImage = new ProfileImage();
profileImage.setImage(new Binary(BsonBinarySubType.BINARY, file.getBytes()));
return imageRepo.insert(profileImage);
}
}
StudentController.java
package com.example.demo.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
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.RestController;
import com.example.demo.model.Student;
import com.example.demo.service.StudentService;
@RestController
public class StudentController {
@Autowired
private StudentService studentService;
@PostMapping("/addStudent")
public Student addStudentPage(@RequestBody Student student)
throws Exception {
return studentService.addStudentPage(student);
}
@DeleteMapping("/delete/{id}")
public String deleteStudent(@PathVariable String id) throws Exception {
return studentService.deleteStudent(id);
}
@PutMapping("/update/{id}")
public Student updateStudent(@PathVariable String id, @RequestBody Student student) throws Exception {
return studentService.updateStudent(id, student);
}
@GetMapping("/students")
public List<Student> getAllStudents() {
return studentService.getAllStudents();
}
@GetMapping("/student/{id}")
public Student getStudent(@PathVariable String id) throws Exception {
return studentService.getStudent(id);
}
}
ProfileImage.java
package com.example.demo.model;
import org.bson.types.Binary;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
@Document(collection = "images")
public class ProfileImage {
@Id
private String id;
private Binary image;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public Binary getImage() {
return image;
}
public void setImage(Binary image) {
this.image = image;
}
}
Student.java
package com.example.demo.model;
import org.bson.types.Binary;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
import org.springframework.stereotype.Component;
@Document(collection = "student")
public class Student {
@Id
private String id;
private String name;
private float marks;
private Binary image;
public Binary getImage() {
return image;
}
public void setImage(Binary image) {
this.image = image;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public float getMarks() {
return marks;
}
public void setMarks(float marks) {
this.marks = marks;
}
}
ImageRepo.java
package com.example.demo.repository;
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.stereotype.Repository;
import com.example.demo.model.ProfileImage;
@Repository
public interface ImageRepo extends MongoRepository<ProfileImage, String> {
}
StudentRepository.java
package com.example.demo.repository;
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.stereotype.Repository;
import com.example.demo.model.Student;
@Repository
public interface StudentRepository extends MongoRepository<Student, String>{
}
StudentService.java
package com.example.demo.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.example.demo.model.Student;
import com.example.demo.repository.StudentRepository;
@Service
public class StudentService {
@Autowired
private StudentRepository studentRepository;
public Student addStudentPage(Student student) {
return studentRepository.save(student);
}
public String deleteStudent(String id) throws Exception {
Student dbstudent = studentRepository.findById(id)
.orElseThrow(() -> new Exception("This Student id is not found : " + id));
studentRepository.delete(dbstudent);
return "delete successfully";
}
public Student updateStudent(String id, Student student) throws Exception {
Student dbstudent = studentRepository.findById(id)
.orElseThrow(() -> new Exception("This Student id is not found : " + id));
dbstudent.setMarks(student.getMarks());
dbstudent.setName(student.getName());
return studentRepository.save(dbstudent);
}
public List<Student> getAllStudents() {
return studentRepository.findAll();
}
public Student getStudent(String id) throws Exception {
Student student = studentRepository.findById(id)
.orElseThrow(() -> new Exception("This Student id is not found : " + id));
return student;
}
}
application.properties
server.port=9898
spring.data.mongodb.uri=mongodb://localhost:27017/collegedb
spring.servlet.multipart.max-file-size=256MB
spring.servlet.multipart.max-request-size=256MB
spring.servlet.multipart.enabled=true
Add below Maven Depenedency:
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-mongodb</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency>
Output Screens:
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