티스토리 뷰
> 샘플코드
package lyj.sample.web.api;
import java.math.BigInteger;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import lyj.sample.model.Greeting;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
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 GreetingController {
private static BigInteger nextId;
private static Map<BigInteger, Greeting> greetingMap;
private static Greeting save(Greeting greeting){
if (greetingMap == null){
greetingMap = new HashMap<BigInteger, Greeting>();
nextId = BigInteger.ONE;
}
// If Update.....
if (greeting.getId() != null){
Greeting oldGreeting = greetingMap.get(greeting.getId());
if (oldGreeting == null){
return null;
}
greetingMap.remove(greeting.getId());
greetingMap.put(greeting.getId(), greeting);
return greeting;
}
// If Create.....
greeting.setId(nextId);
nextId = nextId.add(BigInteger.ONE);
greetingMap.put(greeting.getId(), greeting);
return greeting;
}
private static boolean delete(BigInteger id){
Greeting deletedGreeging = greetingMap.remove(id);
if (deletedGreeging == null){
return false;
}
return true;
}
static {
Greeting g1 = new Greeting();
g1.setText("Hello World!");
save(g1);
Greeting g2 = new Greeting();
g2.setText("Hola Mundo!");
save(g2);
}
@RequestMapping(value="/api/greetings", method=RequestMethod.GET, produces=MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<Collection<Greeting>> getGreetings(){
Collection<Greeting> greetings = greetingMap.values();
return new ResponseEntity<Collection<Greeting>>(greetings, HttpStatus.OK);
}
@RequestMapping(value="/api/greetings/{id}", method=RequestMethod.GET, produces=MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<Greeting> getGreeting(@PathVariable("id") BigInteger id){
Greeting greeting = greetingMap.get(id);
if (greeting == null){
return new ResponseEntity<Greeting>(HttpStatus.NOT_FOUND);
}
return new ResponseEntity<Greeting>(greeting, HttpStatus.OK);
}
@RequestMapping(value="/api/greetings", method=RequestMethod.POST, consumes=MediaType.APPLICATION_JSON_VALUE, produces=MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<Greeting> createGreeting(@RequestBody Greeting greeting){
Greeting savedGreeting = save(greeting);
return new ResponseEntity<Greeting>(savedGreeting, HttpStatus.CREATED);
}
@RequestMapping(value="/api/greetings/{id}", method=RequestMethod.PUT, consumes = MediaType.APPLICATION_JSON_VALUE, produces=MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<Greeting> upateGreeting(@RequestBody Greeting greeting){
Greeting updatedGreeting = save(greeting);
if (updatedGreeting == null){
return new ResponseEntity<Greeting>(HttpStatus.INTERNAL_SERVER_ERROR);
}
return new ResponseEntity<Greeting>(updatedGreeting, HttpStatus.OK);
}
@RequestMapping(value="/api/greetings/{id}", method=RequestMethod.DELETE, consumes=MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<Greeting> deleteGreeting(@PathVariable("id") BigInteger id, @RequestBody Greeting greeting){
if (delete(id)){
return new ResponseEntity<Greeting>(HttpStatus.NO_CONTENT);
}else{
return new ResponseEntity<Greeting>(HttpStatus.INTERNAL_SERVER_ERROR);
}
}
}
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