Jax-RS 无法对代理进行身份验证

Question

我公司有代理

proxy=myProxy
port=myProxyPort
username=me
password=myPassword

我尝试使用简单的 java.net 函数来访问外部世界，它成功了！

System.setProperty("http.proxyHost", myProxy);
System.setProperty("http.proxyPort", myProxyPort);

Authenticator.setDefault(new Authenticator() {
      protected PasswordAuthentication getPasswordAuthentication() {
        return new
           PasswordAuthentication(me,myPasssword.toCharArray());
    }});

URL u = new URL("http://www.google.com");
HttpURLConnection con = (HttpURLConnection) u.openConnection();
DataInputStream di = new DataInputStream(con.getInputStream());
byte[] b = new byte[1024*512];
while(-1 != di.read(b,0,1024*512)) {
   System.out.print(new String(b));

不是我尝试通过使用 Jax-RS Resteasy 实现来做到这一点：

Client client = new ResteasyClientBuilder().defaultProxy(myProxy, myProxyPort).build(); 
System.out.println(client.target("https://www.google.com").request().get().readEntity(String.class));

我收到以下错误

Cache Access Denied
ERR_CACHE_ACCESS_DENIED
(squid/3.1.6)
Sorry, you are not currently allowed to request https://www.google.com/* from this cache until you have authenticated yourself

有人可以告诉我如何使用 Jax-RS 使用用户名密码向代理进行身份验证

Answer 1

哇，这个问题真让我抓狂。我不知道如何以独立于实现的方式解决它。不管怎样，到现在为止它是这样工作的：

ResteasyClient client = new ResteasyClientBuilder().defaultProxy(myProxy, myProxyPort).build(); 
Credentials credentials = new UsernamePasswordCredentials(me, mypassword);
ApacheHttpClient4Engine engine = (ApacheHttpClient4Engine)client.httpEngine();
HttpContext context =  new BasicHttpContext();
engine.setHttpContext(context);

CredentialsProvider provider = new BasicCredentialsProvider(); 
context.setAttribute(ClientContext.CREDS_PROVIDER, provider);
AuthScope authScope = new AuthScope(
            myProxy,
            myProxyPort,
            null,
            null);
System.out.println(client.target("https://www.google.com").request().get().readEntity(String.class));

Answer 2

最简单的方法是不使用默认的底层 Apache 引擎，而是设置标准 Java URLConnection：

resteasyClientBuilder.httpEngine(new URLConnectionEngine());
client = resteasyClientBuilder.build();

如果是这样，所有 http.proxyXXX 系统属性都可以避免对任何凭据提供程序进行编码。

Jax-RS 无法对代理进行身份验证

Jax-RS unable to authenticate to proxy

java

jax-rs

squid

resteasy