java - tobase64string - Apache HttpClient(4.1 y más reciente): cómo hacer la autenticación básica?

java getbytes base64

Question

¿Cómo agrego autenticación básica para el cliente predeterminado de la biblioteca httpClient? He visto ejemplos donde usan client.getCredentialProvider() ; sin embargo, creo que todos estos métodos son para la versión de biblioteca 4.0.1 o 3.x. ¿Hay un nuevo ejemplo de cómo hacer esto? Muchas gracias.

Answer 1

¿No descargaste el ejemplo del sitio web? Y los ejemplos están aquí: httpcomponents-client-4.1.3 / examples / org / apache / http / examples / client

En cuanto a https, solo vea ClientAuthentication.java:

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* 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
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* http://www.apache.org/licenses/LICENSE-2.0
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* distributed under the License is distributed on an "AS IS" BASIS,
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* <http://www.apache.org/>.
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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();
}
}
}

En resumen:

DefaultHttpClient httpclient = new DefaultHttpClient();
httpclient.getCredentialsProvider().setCredentials(
new AuthScope("localhost", 443),
new UsernamePasswordCredentials("username", "password"));

Answer 2

DefaultHttpClient tiene getCredentialsProvider () pero HttpClient no. Necesita declarar DefaultHttpClient client = ... en lugar de HttpClient client = ...

Answer 3

Hacemos autenticación básica con HttpClient , pero no usamos CredentialProvider . Aquí está el código:

HttpClient client = factory.getHttpClient(); //or any method to get a client instance
Credentials credentials = new UsernamePasswordCredentials(username, password);
client.getState().setCredentials(AuthScope.ANY, credentials);

ACTUALIZACIÓN: A establecido en los comentarios, HttpClient.getState() methos está disponible en la versión 3.x de la API . Sin embargo, las versiones más nuevas de la API no son compatibles con ese método.

Answer 4

Otra opción moderna para 4.3 es usar la extensión Fluent:

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();

Answer 5

Tenía este requisito de invocar una URL con autenticación básica que también requería configuración de proxy. Esto es lo que funcionó para mí.

 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();
}
}
}

Answer 6

CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(AuthScope.ANY,
new UsernamePasswordCredentials("username", "password"));
CloseableHttpClient httpClient =
HttpClientBuilder.create().setDefaultCredentialsProvider(credentialsProvider).build();