Java如何设置HttpClient的代理？
在此示例中，您将看到使用ApacheCommonsHttpClient库时如何配置代理。
package org.nhooo.example.commons.httpclient;
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 java.io.IOException;
public class HttpGetProxy {
private static final String PROXY_HOST = "proxy.host.com";
private static final int PROXY_PORT = 8080;
public static void main(String[] args) {
HttpClient client = new HttpClient();
HttpMethod method = new GetMethod("https://nhooo.org");
HostConfiguration config = client.getHostConfiguration();
config.setProxy(PROXY_HOST, PROXY_PORT);
String username = "guest";
String password = "s3cr3t";
Credentials credentials = new UsernamePasswordCredentials(username, password);
AuthScope authScope = new AuthScope(PROXY_HOST, PROXY_PORT);
client.getState().setProxyCredentials(authScope, credentials);
try {
client.executeMethod(method);
if (method.getStatusCode() == HttpStatus.SC_OK) {
String response = method.getResponseBodyAsString();
System.out.println("Response = " + response);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
method.releaseConnection();
}
}
}Maven依赖
<!-- http://repo1.maven.org/maven2/commons-httpclient/commons-httpclient/3.1/commons-httpclient-3.1.jar -->
<dependency>
<groupId>commons-httpclient</groupId>
<artifactId>commons-httpclient</artifactId>
<version>3.1</version>
</dependency>