okHttp 3.x身份验证器未被调用
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我需要通过需要身份验证的代理发出请求。
public class WebClient
private final OkHttpClient httpClient;
private static WebClient webClient;
private WebClient()
OkHttpClient.Builder builder = new OkHttpClient.Builder();
if (Configurator.getInstance().useProxy())
builder.proxySelector(new CustomProxySelector());
builder.authenticator((Route route, Response response) ->
String credential = Credentials.basic("MYUSER", "MYPSW");
return response.request().newBuilder().header("Authorization", credential).build();
);
else
builder.proxy(Proxy.NO_PROXY);
httpClient = builder
.connectTimeout(60, TimeUnit.SECONDS)
.writeTimeout(60, TimeUnit.SECONDS)
.readTimeout(60, TimeUnit.SECONDS)
.build();
但是使用调试器我看到验证器方法永远不会被调用,我收到407作为任何请求的响应。
但是,当我使用HttpURLConnection与Authenticator.setDefault时,它工作正常,我可以使用我的代理身份验证:
public boolean hasInternetConnection() throws IOException
Request httpRequest = new Request.Builder().url("http://www.google.com/").build();
// This fails with 407
Response httpResponse = httpClient.newCall(httpRequest).execute();
java.net.Authenticator authenticator = new java.net.Authenticator()
public PasswordAuthentication getPasswordAuthentication()
return (new PasswordAuthentication("MYUSER", "MYPSW".toCharArray()));
;
java.net.Authenticator.setDefault(authenticator);
URL obj = new URL("http://www.google.com/");
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
con.setRequestMethod("GET");
// This works with 200
int responseCode = con.getResponseCode();
return false;
所以我认为问题是:为什么没有调用OkHttpClient.Builder.authenticator方法?
答案
正如Gimby指出的那样,其中一个问题是我说错了方法。让我困惑的是,有时候proxyAuthenticator没有被调用,我试图找出原因。
我开发的应用程序需要访问我的工作网络内外的资源。因此,当我需要外部访问时,我必须使用具有身份验证的代理。它的工作原理如下:
- 向互联网主机发出请求;
- ProxySelector决定HTTP客户端应该使用代理来处理此请求,因为它是一个Internet主机;
- 由于设置了代理,因此调用ProxyAuthenticator以在请求中发送授权标头。
但是,当向内部主机发出请求时,ProxySelector会确定不需要使用代理。因此,ProxyAuthenticator不会被调用,因为没有活动代理。
以下是我对任何感兴趣的人的实施:
Web client.Java
public class WebClient
private final OkHttpClient httpClient;
private static WebClient webClient;
private WebClient()
OkHttpClient.Builder builder = new OkHttpClient.Builder();
if (Configurator.getInstance().useProxy())
CodeUtils.setProxy();
builder.proxySelector(new CustomProxySelector());
builder.proxyAuthenticator(new CustomProxyAuthenticator());
else
builder.proxy(Proxy.NO_PROXY);
CodeUtils.removeProxy();
httpClient = builder
.connectTimeout(10, TimeUnit.SECONDS)
.writeTimeout(10, TimeUnit.SECONDS)
.readTimeout(10, TimeUnit.SECONDS)
.build();
public static WebClient getInstance()
return webClient != null ? webClient : (webClient = new WebClient());
public static void reload()
webClient = null;
public String doGet(String url) throws IOException
Request httpRequest = new Request.Builder().url(url).build();
Response httpResponse = httpClient.newCall(httpRequest).execute();
if (httpResponse.code() != 200)
JSONObject jsonObject = new JSONObject();
jsonObject.put("success", false);
jsonObject.put("msg", httpResponse.body().string());
jsonObject.put("httpCode", httpResponse.code());
return jsonObject.toString();
return httpResponse.body().string();
public String doPost(String url, JSONObject body) throws IOException
RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), body.toString());
Request request = new Request.Builder()
.header("Accept", "application/json")
.header("Content-type", "application/json; charset=UTF-8")
.url(url)
.post(requestBody).build();
Response response = httpClient.newCall(request).execute();
return response.body().string();
custom proxy authenticator.Java
public class CustomProxyAuthenticator implements Authenticator
@Override
public Request authenticate(Route route, Response response) throws IOException
String username = Configurator.getInstance().getProxyUser();
String password = Configurator.getInstance().getProxyPassword();
String credential = Credentials.basic(username, password);
return response.request().newBuilder()
.header("Proxy-Authorization", credential)
.build();
custom proxy selector.Java
public class CustomProxySelector extends ProxySelector
private Configurator configurator = Configurator.getInstance();
private List<String> nonProxyHosts = Arrays.asList(configurator.getNonProxyHosts().split("\\|"));
private String proxyHost = configurator.getProxyHost();
private int proxyPort = configurator.getProxyPort();
@Override
public List<Proxy> select(URI uri)
final List<Proxy> proxyList = new ArrayList<>(1);
String host = uri.getHost();
if (host.startsWith("127.0.0.1") || nonProxyHosts.contains(host))
proxyList.add(Proxy.NO_PROXY);
else
proxyList.add(new Proxy(Proxy.Type.HTTP, new InetSocketAddress(proxyHost, proxyPort)));
return proxyList;
@Override
public void connectFailed(URI arg0, SocketAddress arg1, IOException arg2)
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