Practical 10 :- Practical based on SPRING boot and RESTFUL Web Services

SpringBootDemoApplication.java package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration; import org.springframework.boot.autoconfigure.SpringBootApplication; 
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.RequestMapping; @RestController
@EnableAutoConfiguration @SpringBootApplication
public class SpringBootDemoApplication {

public static void main(String[] args) { SpringApplication.run(SpringBootDemoApplication.class, args);
}
@RequestMapping("/")
public String home()
{
return "Hello World Spring boot";
}

}

Product.java
package com.example.demo;

public class Product {
private String id;
private String name;

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;
}
}

ProductServiceController.java
package com.example.demo;

import java.util.HashMap;
import java.util.Map;

import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PathVariable; 
import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController;

@RestController
public class ProductServiceController {
private static Map<String, Product> productRepo = new
HashMap<>();
static {
Product honey = new Product(); honey.setId("1");


honey.setName("Honey");
productRepo.put(honey.getId(), honey);

Product almond = new Product(); almond.setId("2"); almond.setName("Almond"); productRepo.put(almond.getId(), almond);
}
@RequestMapping(value = "/products")
public ResponseEntity<Object> getProduct() {
return new ResponseEntity<>(productRepo.values(), HttpStatus.OK);
}

@RequestMapping(value = "/products/{id}", method = RequestMethod.PUT)
public ResponseEntity<Object> updateProduct(@PathVariable("id") String id, @RequestBody Product product) {
productRepo.remove(id); product.setId(id); productRepo.put(id, product);
return new ResponseEntity<>("Product is updated successsfully", HttpStatus.OK);
}
@RequestMapping(value = "/products/{id}", method = RequestMethod.DELETE)

public ResponseEntity<Object> delete(@PathVariable("id") String id) {
productRepo.remove(id);
return new ResponseEntity<>("Product is deleted successsfully", HttpStatus.OK);
}
@RequestMapping(value = "/products", method = RequestMethod.POST)
public ResponseEntity<Object> createProduct(@RequestBody Product product) {
productRepo.put(product.getId(), product);
return new ResponseEntity<>("Product is created successfully", HttpStatus.CREATED);
}

}



SpringBootRestfulServiceDemoApplication.java
package com.example.demo;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication
public class SpringBootRestfulServiceDemoApplication { public static void main(String[] args) {
SpringApplication.run(SpringBootRestfulServiceDemoApplication.class, args);

}

}