泽西客户端+设置代理

Question

嗨,我有一个用于上传文件的球衣客户端.我尝试在本地使用它,一切正常.但在生产环境中,我要设置代理.我浏览了几页,但无法得到确切的解决方案.有人可以帮我这个吗？

这是我的客户代码:

File file = new File("e:\\test.zip");
FormDataMultiPart part = new FormDataMultiPart();

    part.bodyPart(new FileDataBodyPart("file", file, MediaType.APPLICATION_OCTET_STREAM_TYPE));

    WebResource resource = null;

    if(proxy.equals("yes")){
    //How do i configure client in this case?

    }else{
            //this uses system proxy i guess
        resource = Client.create().resource(url);   
    }

    String response = (String)resource.type(MediaType.MULTIPART_FORM_DATA_TYPE).post(String.class, part);

    System.out.println(response);

Answer 1

如果您想在遗留项目中避免使用更多库并且不需要代理身份验证,则有一种更简单的方法:

首先,你需要一个实现的类HttpURLConnectionFactory:

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.URL;

import com.sun.jersey.client.urlconnection.HttpURLConnectionFactory;


public class ConnectionFactory implements HttpURLConnectionFactory {

    Proxy proxy;

    private void initializeProxy() {
        proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("myproxy.com", 3128));
    }

    public HttpURLConnection getHttpURLConnection(URL url) throws IOException {
        initializeProxy();
        return (HttpURLConnection) url.openConnection(proxy);
    }
}

第二是实例化 com.sun.jersey.client.urlconnection.URLConnectionHandler

URLConnectionClientHandler ch  = new URLConnectionClientHandler(new ConnectionFactory());

第三是使用Client构造函数而不是Client.create:

Client client = new Client(ch);

当然,您可以自定义代理的初始化ConnectionFactory.

Answer 2

luckyluke的回答应该有效.这是我的版本:

ClientConfig config = new DefaultClientConfig();
Client client = new Client(new URLConnectionClientHandler(
        new HttpURLConnectionFactory() {
    Proxy p = null;
    @Override
    public HttpURLConnection getHttpURLConnection(URL url)
            throws IOException {
        if (p == null) {
            if (System.getProperties().containsKey("http.proxyHost")) {
                p = new Proxy(Proxy.Type.HTTP,
                        new InetSocketAddress(
                        System.getProperty("http.proxyHost"),
                        Integer.getInteger("http.proxyPort", 80)));
            } else {
                p = Proxy.NO_PROXY;
            }
        }
        return (HttpURLConnection) url.openConnection(p);
    }
}), config);

Answer 3

干得好：

 DefaultApacheHttpClient4Config config = new DefaultApacheHttpClient4Config();
      config.getProperties().put(
      ApacheHttpClient4Config.PROPERTY_PROXY_URI, 
      "PROXY_URL"
 );

 config.getProperties().put(
      ApacheHttpClient4Config.PROPERTY_PROXY_USERNAME, 
      "PROXY_USER"
 );

 config.getProperties().put(
      ApacheHttpClient4Config.PROPERTY_PROXY_PASSWORD, 
      "PROXY_PASS"
 );     

 Client c = ApacheHttpClient4.create(config);
 WebResource r = c.resource("https://www.google.com/");