是否可以使用来自 restservice java 的 rss 提要？

Question

我正在尝试通过简单的休息服务调用来使用 rss 提要。但是我正在连接超时。示例 rss 提要：https://www.yahoo.com/news/rss/

我的代码：

public class 测试 {

// http://localhost:8080/RESTfulExample/json/product/get
public static void main(String a[]){

      try {

        URL url = new URL("https://www.yahoo.com/news/rss/");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();

        conn.setRequestMethod("GET");
        conn.setRequestProperty("Accept", "application/json");
        //conn.setConnectTimeout(999999);
/*
        if (conn.getResponseCode() != 200) {
            throw new RuntimeException("Failed : HTTP error code : "
                    + conn.getResponseCode());
        }*/

        BufferedReader br = new BufferedReader(new InputStreamReader(
            (conn.getInputStream())));

        String output;
        System.out.println("Output from Server .... \n");
        while ((output = br.readLine()) != null) {
            System.out.println(output);
        }

        conn.disconnect();

      } catch (MalformedURLException e) {

        e.printStackTrace();

      } catch (IOException e) {

        e.printStackTrace();

      }

    }

}

异常：

java.net.ConnectException：连接超时：connect 在 java.net.DualStackPlainSocketImpl.connect0（本机方法）在 java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79) 在 java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339) 在 java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200) 在 java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182) 在 java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) 在 java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) 在 java.net.Socket.connect(Socket.java:579) 在 sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:625) 在 sun.security.ssl.BaseSSLSocketImpl.connect（基础SSLSocketImpl.java:160）在 sun.net.NetworkClient.doConnect(NetworkClient.java:180) 在 sun.net.www.http.HttpClient.openServer(HttpClient.java:432) 在 sun.net.www.http.HttpClient.openServer(HttpClient.java:527) 在 sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:275) 在 sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:371) 在 sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191) 在 sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:933) 在 sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177) 在 sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1301) 在 sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254) 在 Test.main

这是错误的吗approach/code？如果您能提出更好的建议 approach/code 那就太好了。

Answer 1

终于可以通过设置代理来解决问题了。这是对我有用的代码。

public class 测试 {

public static void main(String a[]) throws ClientProtocolException, IOException{
    HttpClient httpClient = new DefaultHttpClient();
    HttpHost proxy=new HttpHost("hostname", portnumber, "scheme"); // ex: hostname="your org proxy host" portnumber=8080 scheme="http"
    httpClient.getParams().setParameter(ConnRouteParams.DEFAULT_PROXY,proxy );

    HttpGet getRequest = new HttpGet(
        "https://www.yahoo.com/news/rss/");

    //getRequest.addHeader("accept", "application/xml");
    final RequestConfig config = RequestConfig.custom().setProxy(proxy).build();
    getRequest.setConfig(config);


    HttpResponse response = httpClient.execute(getRequest);

    /*if (response.getStatusLine().getStatusCode() != 200) {
        throw new RuntimeException("Failed : HTTP error code : "
           + response.getStatusLine().getStatusCode());
    }*/

    BufferedReader br = new BufferedReader(
                     new InputStreamReader((response.getEntity().getContent())));

    String output;
    System.out.println("Output from Server .... \n");
    while ((output = br.readLine()) != null) {
        System.out.println(output);
    }

    httpClient.getConnectionManager().shutdown();

}

是否可以使用来自 restservice java 的 rss 提要？

Is it possible to consume rss feed from restservice java?

java

rest

rss