如何從java客戶端使用Liferay編寫的liferay web服務？

Question

我有用Liferay編寫的web服務。我想要在單獨的機器上運行的Java Client中獲取數據。我可以這樣做嗎？ 我都試過，但我得到以下錯誤

{「消息」：「身份的訪問要求」，「異常」：「java.lang.SecurityException異常」}

我的代碼如下

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStreamReader; 
import java.net.HttpURLConnection; 
import java.net.MalformedURLException; 
import java.net.URL; 

public class JavaClient { 

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

     try 
     { 

      // URL url = new 
      // URL("http://localhost:8080/api/jsonws/us-pharmacy-ui-portlet.ph_fax/get-documents-to-fax 
      // \-u test@liferay.com:test"); 
      HttpURLConnection conn = (HttpURLConnection) getURL().openConnection(); 

      conn.setRequestMethod("GET"); 
      conn.setRequestProperty("Accept", "application/json"); 

      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(); 

     } 

    } 

    private static URL getURL() throws MalformedURLException 
    { 
     String url = "http://localhost:8080"; 
     String screenName = "shahid.rana"; 
     String password = "123"; 

     int pos = url.indexOf("://"); 
     String protocol = url.substring(0, pos + 3); 
     String host = url.substring(pos + 3, url.length()); 

     StringBuilder sb = new StringBuilder(); 
     sb.append(protocol); 
     sb.append(screenName); 
     sb.append(":"); 
     sb.append(password); 
     sb.append("@"); 
     sb.append(host); 
     sb.append("/api/jsonws/us-pharmacy-ui-portlet.ph_fax/get-documents-to-fax/"); 
     // sb.append(serviceName); 
     System.out.println("sb.toString()" + sb.toString()); 
     return new URL(sb.toString()); 
    } 

} 

Answer 1

是的，你會得到這個錯誤，因爲Liferay Web服務需要基本的身份驗證。 你需要設置test@liferay.com &任何密碼在base64 &傳遞它。使用

示例代碼的HttpClient

HttpHost targetHost = new HttpHost("localhost", 8080, "http"); 
      DefaultHttpClient httpclient = new DefaultHttpClient(); 
      BasicHttpContext ctx = new BasicHttpContext(); 
      // Plugin Context Use for Liferay 6.1 
      HttpPost post = new HttpPost("/api/jsonws/country/get-countries"); 
      Base64 b = new Base64(); 
     String encoding = b.encodeAsString(new String("test@liferay.com:test").getBytes()); 
     post.setHeader("Authorization", "Basic " + encoding); 
      List<NameValuePair> params = new ArrayList<NameValuePair>(); 
      //params.add(new BasicNameValuePair("emplyeeId", "30722")); 
      UrlEncodedFormEntity entity = new UrlEncodedFormEntity(params, "UTF-8"); 
      post.setEntity(entity); 
      HttpResponse resp = httpclient.execute(targetHost, post, ctx); 
      resp.getEntity().writeTo(System.out); 
      httpclient.getConnectionManager().shutdown(); 

    } 

請注意

String encoding = b.encodeAsString(new String("test@liferay.com:test").getBytes()); 
     post.setHeader("Authorization", "Basic " + encoding);