用java pyhont通过HTTP协议传输文件流

// 代码网上抄的 忘记链接了 抱歉哈
package upload;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class uploadtest {

    public uploadtest() {
        // TODO Auto-generated constructor stub
    }

     public static void main(String[] args)
     {
         try {
            upLoadByCommonPost("http://127.0.0.1/upload_file.php");
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
         
     }
    
    private static void upLoadByCommonPost(String uploadUrl) throws IOException {  
        String end = "\r\n";  
        String twoHyphens = "--";  
        String boundary = "******";  
        URL url = new URL(uploadUrl);  
        HttpURLConnection httpURLConnection = (HttpURLConnection) url  
                .openConnection();  
        httpURLConnection.setChunkedStreamingMode(128 * 1024);// 128K  应该按照文件大小来定义
        // 允许输入输出流  
        httpURLConnection.setDoInput(true);  
        httpURLConnection.setDoOutput(true);  
        httpURLConnection.setUseCaches(false);  
        // 使用POST方法  
        httpURLConnection.setRequestMethod("POST");  
        httpURLConnection.setRequestProperty("Connection", "Keep-Alive");  
        httpURLConnection.setRequestProperty("Charset", "UTF-8");  
        httpURLConnection.setRequestProperty("Content-Type",  
                "multipart/form-data;boundary=" + boundary);  
  
        DataOutputStream dos = new DataOutputStream(  
                httpURLConnection.getOutputStream());  
        dos.writeBytes(twoHyphens + boundary + end);  
        dos.writeBytes("Content-Disposition: form-data; name=\"uploadfile\"; filename=\"1.jpg\";" + end); 
        dos.writeBytes("Content-Type: image/jpeg" + end);  
        dos.writeBytes(end);  
  
        FileInputStream fis = new FileInputStream("d:\\1.jpg");  
        byte[] buffer = new byte[1024*100]; // 100k  
        int count = 0;  
        // 读取文件  
        while ((count = fis.read(buffer)) != -1) {  
            dos.write(buffer, 0, count);  
        }  
        fis.close();  
        dos.writeBytes(end);  
        dos.writeBytes(twoHyphens + boundary + twoHyphens + end);  
        dos.flush();  
        InputStream is = httpURLConnection.getInputStream();  
        InputStreamReader isr = new InputStreamReader(is, "utf-8");  
        BufferedReader br = new BufferedReader(isr);  
        String result;
        while ((result=br.readLine()) != null){
            System.out.println(result);
        } 
        dos.close();  
        is.close();  
    }  
}