如何为 httpClient 库的默认客户端添加基本身份验证?我已经看到了他们使用的示例client.getCredentialProvider()
,但是我认为所有这些方法都适用于库版本 4.0.1 或 3.x。有没有一个新的例子来说明如何做到这一点?非常感谢。
问问题
81341 次
6 回答
85
CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(AuthScope.ANY,
new UsernamePasswordCredentials("username", "password"));
CloseableHttpClient httpClient =
HttpClientBuilder.create().setDefaultCredentialsProvider(credentialsProvider).build();
于 2014-02-24T09:47:43.887 回答
20
你没有从网站下载示例吗?示例在这里:httpcomponents-client-4.1.3\examples\org\apache\http\examples\client
至于https,就看ClientAuthentication.java:
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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
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* <http://www.apache.org/>.
*/
package org.apache.http.examples.client;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
/**
* A simple example that uses HttpClient to execute an HTTP request against
* a target site that requires user authentication.
*/
public class ClientAuthentication {
public static void main(String[] args) throws Exception {
DefaultHttpClient httpclient = new DefaultHttpClient();
try {
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 443),
new UsernamePasswordCredentials("username", "password"));
HttpGet httpget = new HttpGet("https://localhost/protected");
System.out.println("executing request" + httpget.getRequestLine());
HttpResponse response = httpclient.execute(httpget);
HttpEntity entity = response.getEntity();
System.out.println("----------------------------------------");
System.out.println(response.getStatusLine());
if (entity != null) {
System.out.println("Response content length: " + entity.getContentLength());
}
EntityUtils.consume(entity);
} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}
}
}
简而言之:
DefaultHttpClient httpclient = new DefaultHttpClient();
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 443),
new UsernamePasswordCredentials("username", "password"));
于 2012-03-02T01:50:55.213 回答
10
4.3 的另一个现代选项是使用 Fluent 扩展:
Executor executor = Executor.newInstance()
.auth(new HttpHost("somehost"), "username", "password")
.auth(new HttpHost("securehost", 443, "https"), "username", "password") // https example
.auth(new HttpHost("myproxy", 8080), "username", "password")
.authPreemptive(new HttpHost("myproxy", 8080));
String content = executor.execute(Request.Get("http://somehost/"))
.returnContent().asString();
于 2014-10-09T22:26:15.520 回答
4
DefaultHttpClient 有 getCredentialsProvider() 但 HttpClient 没有。您需要声明 DefaultHttpClient client = ... 而不是 HttpClient client = ...
于 2013-05-24T07:05:54.037 回答
0
我有使用基本身份验证调用 URL 的要求,这也需要代理设置。这对我有用。
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.util.HashMap;
import java.util.Map;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.apache.commons.httpclient.Credentials;
import org.apache.commons.httpclient.HostConfiguration;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.UsernamePasswordCredentials;
import org.apache.commons.httpclient.auth.AuthScope;
import org.apache.commons.httpclient.methods.GetMethod;
import org.w3c.dom.*;
import javax.xml.parsers.*;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
public class TestResponse {
public final static String TESTURL="https://myURL";
private static final String PROXY_HOST = "www2.proxyXYS";
private static final int PROXY_PORT = 8080;
public static void main (String args[])
{
HttpClient client = new HttpClient();
HttpMethod method = new GetMethod(TESTURL);
HostConfiguration config = client.getHostConfiguration();
config.setProxy(PROXY_HOST, PROXY_PORT);
String username = "User";
String password = "Pa55w0rd";
Credentials credentials = new UsernamePasswordCredentials(username, password);
AuthScope authScope = new AuthScope(PROXY_HOST, PROXY_PORT);
client.getState().setProxyCredentials(authScope, credentials);
client.getState().setCredentials(AuthScope.ANY, credentials);
try {
client.executeMethod(method);
String response = method.getResponseBodyAsString();
if (method.getStatusCode() == HttpStatus.SC_OK) {
response = method.getResponseBodyAsString();
}
} catch (IOException e) {
e.printStackTrace();
} finally {
method.releaseConnection();
}
}
}
于 2017-01-05T09:35:16.033 回答
-2
我们使用 进行基本身份验证HttpClient
,但不使用CredentialProvider
. 这是代码:
HttpClient client = factory.getHttpClient(); //or any method to get a client instance
Credentials credentials = new UsernamePasswordCredentials(username, password);
client.getState().setCredentials(AuthScope.ANY, credentials);
更新:
在评论中声明,方法在 API 3.x 版本HttpClient.getState()
中可用。但是,较新版本的 API不支持该方法。
于 2012-02-22T20:51:41.720 回答