HTTP組件無法連接到代理

Question

我試圖通過代理連接到一個網站，但我得到一個錯誤

Error Code: 407 Proxy Authentication Required. Forefront TMG requires authorization to fulfill the request. Access to the Web Proxy filter is denied. (12209) 

我的代碼是非常接近的例子，A​​pache提供， https://hc.apache.org/httpcomponents-client-ga/examples.html（請參閱代理身份驗證示例）。我肯定是在做錯誤的認證，但是...什麼？

HttpHost proxy = new HttpHost("http-proxy", 80); 
    HttpHost target = new HttpHost(url, 80); 
    CredentialsProvider credsProvider = new BasicCredentialsProvider(); 
    credsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(user,password)); 


try (CloseableHttpClient client = HttpClientBuilder.create().setDefaultCredentialsProvider(new SystemDefaultCredentialsProvider()).build()) { 

RequestConfig config = RequestConfig.custom().setProxy(proxy).build(); 
HttpGet httpget = new HttpGet("/basic-auth/user/passwd"); 
httpget.setConfig(config); 

HttpResponse response = client.execute(target, httpget); 
} 

Answer 1

的問題似乎正在設置new SystemDefaultCredentialsProvider()當你構建HTTP客戶端。我想你的意圖是設置credsProvider，你剛剛添加了代理用戶和密碼。