获得403禁止错误

Question

尽管" https://jsonplaceholder.typicode.com/posts/1 "适用于邮递员,但禁止以下代码使用403

@ComponentScan
@EnableAutoConfiguration
public class Application {
    public static void main(String[] args) {

        RestTemplate rt = new RestTemplate();
        HttpHeaders headers = new HttpHeaders();
        headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
        HttpEntity<String> entity = new HttpEntity<String>("parameters", headers);
        String url = "https://jsonplaceholder.typicode.com/posts/1";
        ResponseEntity<String> res = rt.exchange(url, HttpMethod.GET, entity, String.class);

        System.out.println(res);
    }
}

错误:

23:28:21.447 [main] DEBUG o.s.web.client.RestTemplate - Created GET request for "https://jsonplaceholder.typicode.com/posts/1"
23:28:21.452 [main] DEBUG o.s.web.client.RestTemplate - Setting request Accept header to [text/plain, application/json, application/*+json, */*]
23:28:21.452 [main] DEBUG o.s.web.client.RestTemplate - Writing [parameters] using [org.springframework.http.converter.StringHttpMessageConverter@3234e239]
23:28:21.855 [main] WARN  o.s.web.client.RestTemplate - GET request for "https://jsonplaceholder.typicode.com/posts/1" resulted in 403 (Forbidden); invoking error handler
Exception in thread "main" org.springframework.web.client.HttpClientErrorException: 403 Forbidden
    at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:91)
    at org.springframework.web.client.RestTemplate.handleResponseError(RestTemplate.java:598)
    at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:556)
    at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:512)
    at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:454)
    at restFulWS.Application.main(Application.java:21)

更新:邮递员的标题快照

Access-Control-Allow-Credentials ?true
CF-Cache-Status ?HIT
CF-RAY ?2cfd2d4919e72dcd-BOM
Cache-Control ?public, max-age=14400
Connection ?keep-alive
Content-Encoding ?gzip
Content-Type ?application/json; charset=utf-8
Date ?Tue, 09 Aug 2016 18:12:32 GMT
Etag ?W/"134-PYMqYXMMQ68yDudiuhsVPg"
Expires ?Tue, 09 Aug 2016 22:12:32 GMT
Pragma ?no-cache
Server ?cloudflare-nginx
Transfer-Encoding ?chunked
Vary ?Accept-Encoding
Via ?1.1 vegur
X-Content-Type-Options ?nosniff
X-Powered-By ?Express

如果有人可以建议,我需要在我的代码中添加什么

Answer 1

尝试在您的请求中添加"User-Agent"标头.您可以尝试设置自定义用户代理值,也可以使用一些标识浏览器的值,如"Mozilla/5.0(Macintosh; Intel Mac OS X 10_11_6)AppleWebKit/537.36(KHTML,如Gecko)Chrome/51.0.2704.103 Safari/537.36 "

@ComponentScan
@EnableAutoConfiguration
public class Application {
    public static void main(String[] args) {
        RestTemplate rt = new RestTemplate();
        HttpHeaders headers = new HttpHeaders();
        headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
        headers.add("user-agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36");
        HttpEntity<String> entity = new HttpEntity<String>("parameters", headers);
        String url = "https://jsonplaceholder.typicode.com/posts/1";
        ResponseEntity<String> res = rt.exchange(url, HttpMethod.GET, entity, String.class);
        System.out.println(res);
    }
}