[Spring in Action] Spring REST Sample 예제

Spring in Action (5판)

• 스프링 5의 강력한 기능과 생산성을 활용한 웹 애플리케이션 개발
• Walls, Craig 지음
• 제어펍 출판사
• 2020.05.14

 

스프링 인 액션 개인 스터디 내용을 정리하자.

 

 

 

 

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영화진흥위원회 일별 박스오피스 데이터 출력 Sample (http://www.kobis.or.kr/kobisopenapi/homepg/apiservice/searchServiceInfo.do?serviceId=searchMovieList)

• http://www.kobis.or.kr/kobisopenapi/webservice/rest/boxoffice/searchDailyBoxOfficeList.json?key=430156241533f1d058c603178cc3ca0e&targetDt=20200901

 

Dependency (gradle)

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
    implementation 'org.springframework.boot:spring-boot-starter-web'
    implementation 'org.springframework.boot:spring-boot-starter-web-services'
    implementation('org.apache.httpcomponents:httpclient:4.5')
  
    compile group: 'com.fasterxml.jackson.core', name: 'jackson-core', version: '2.9.3'
    compile group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '2.9.3'
    compile group: 'com.google.code.gson', name: 'gson', version: '2.8.5'
    compile group: 'com.googlecode.json-simple', name: 'json-simple', version: '1.1.1'
}

Controller

package com.example.demo.controller;
 
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.HashMap;
import java.util.Map;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.ResponseEntity;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.HttpClientErrorException;
import org.springframework.web.client.HttpServerErrorException;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.util.UriComponents;
import org.springframework.web.util.UriComponentsBuilder;
 
@RestController
public class SampleController {
 
    @GetMapping("/hello")
    public String hello() {
        return "Sample Hello";
    }
 
    @GetMapping("/getKobisData")
    public String getKobisData() {
 
        Map<String, Object> result = new HashMap<String, Object>();
        String jsonInString = "";
 
        try {
            // RestTemplate 타임아웃 설정, 타임아웃 생략 시 new RestTemplate()으로 진행 가능
            HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory();
            factory.setConnectTimeout(5000);   
            factory.setReadTimeout(5000);
 
            RestTemplate restTemplate = new RestTemplate(factory);
 
            HttpHeaders headers = new HttpHeaders();
            HttpEntity<?> entity = new HttpEntity<>(headers);
 
            String url = "http://www.kobis.or.kr/kobisopenapi/webservice/rest/boxoffice/searchDailyBoxOfficeList.json";
 
            UriComponents uri = UriComponentsBuilder.fromHttpUrl(url + "?" + "key=430156241533f1d058c603178cc3ca0e&targetDt=20200901").build();
 
            // Rest Call
            ResponseEntity<Map> resultMap = restTemplate.exchange(uri.toString(), HttpMethod.GET, entity, Map.class);
            result.put("statusCode", resultMap.getStatusCodeValue());
            result.put("header", resultMap.getHeaders());
            result.put("body", resultMap.getBody());
             
            // String 파싱
            ObjectMapper mapper = new ObjectMapper();
            jsonInString = mapper.writeValueAsString(resultMap.getBody());
 
        } catch (HttpClientErrorException | HttpServerErrorException e) {
            result.put("statusCode", e.getRawStatusCode());
            result.put("body"  , e.getStatusText());
            System.out.println("dfdfdfdf");
            System.out.println(e.toString());
 
        } catch (Exception e) {
            result.put("statusCode", "999");
            result.put("body"  , "excpetion오류");
            System.out.println(e.toString());
        }
 
        return jsonInString;
    }
}

 

결과