关于某些网站的图片盗链功能，相关http 请求的解决方法

其实 关键就是 header中 的 Referer 属性，可以通过firebug 查看头信息 并获得Referer，但有些情况下可能不能获取，就只能通过抓包的方法来获得了。

[java]
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import java.io.BufferedInputStream;  
import java.io.BufferedOutputStream;  
import java.io.BufferedReader;  
import java.io.File;  
import java.io.FileOutputStream;  
import java.io.InputStreamReader;  
import java.net.HttpURLConnection;  
import java.net.URL;  
  
  
public class refererPost {  
    public static void main(String[] args){  
        String urls = "http://113.107.42.72:88/images/uploadimg/rw201209231804.jpg";  
        URL url = null;  
        HttpURLConnection http = null;  
        try {  
            url = new URL(urls);  
            http = (HttpURLConnection) url.openConnection();  
            http.setDoInput(true);  
            http.setDoOutput(true);  
            http.setUseCaches(false);  
            http.setConnectTimeout(50000);  
            http.setReadTimeout(50000);  
            http.setRequestMethod("GET");  
            http.setRequestProperty("Accept", "image/png,image/*;q=0.8,*/*;q=0.5");  
            http.setRequestProperty("Accept-Encoding", "gzip");    
            http.setRequestProperty("Referer", "http://dmm.hk/");    
            String param = "zs=dddddddddddddddddd";  
            //http.getOutputStream().write(param.getBytes());      
            //http.getOutputStream().flush();  
            //http.getOutputStream().close();  
            System.out.println("getResponseCode====="+http.getResponseCode());  
            if (http.getResponseCode() == 200) {  
                File f = new File("D://a.jpg");  
                System.out.println("111111111111111111111111111111");  
                BufferedInputStream in = new BufferedInputStream(  
            http.getInputStream());  
            int c = 0;  
            BufferedOutputStream b = new BufferedOutputStream(new FileOutputStream(f));  
            while((c=in.read())!=-1){  
                b.write(c);  
                b.flush();  
            }  
              
            b.close();  
            in.close();  
            }  
        } catch (Exception e) {  
            System.out.println("err");  
        } finally {  
        if (http != null)  
            http.disconnect();  
        }  
    }  
    }  

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class refererPost {
public static void main(String[] args){
String urls = "http://113.107.42.72:88/images/uploadimg/rw201209231804.jpg";
URL url = null;
HttpURLConnection http = null;
try {
url = new URL(urls);
http = (HttpURLConnection) url.openConnection();
http.setDoInput(true);
http.setDoOutput(true);
http.setUseCaches(false);
http.setConnectTimeout(50000);
http.setReadTimeout(50000);
http.setRequestMethod("GET");
http.setRequestProperty("Accept", "image/png,image/*;q=0.8,*/*;q=0.5");
http.setRequestProperty("Accept-Encoding", "gzip");
http.setRequestProperty("Referer", "http://dmm.hk/");
String param = "zs=dddddddddddddddddd";
//http.getOutputStream().write(param.getBytes());
//http.getOutputStream().flush();
//http.getOutputStream().close();
System.out.println("getResponseCode====="+http.getResponseCode());
if (http.getResponseCode() == 200) {
File f = new File("D://a.jpg");
System.out.println("111111111111111111111111111111");
BufferedInputStream in = new BufferedInputStream(
http.getInputStream());
int c = 0;
BufferedOutputStream b = new BufferedOutputStream(new FileOutputStream(f));
while((c=in.read())!=-1){
b.write(c);
b.flush();
}

b.close();
in.close();
}
} catch (Exception e) {
System.out.println("err");
} finally {
if (http != null)
http.disconnect();
}
}
}