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();
    }
}

再来个python的,用到了poster模块下载地址戳这

# -*- coding: utf-8 -*-

import urllib2

import urllib 

 from poster.encode import multipart_encode
 from poster.streaminghttp import register_openers

      params = {'uploadfile': open(formvalue['file'], "rb")}
     datagen, headers = multipart_encode(params)
     request = urllib2.Request(url, datagen, headers)
     return urllib2.urlopen(request).read().decode("utf_8_sig")

服务器代码PHP的

<?php
    var_dump($_FILES);
    if (//($_FILES["type"] == "image/gif")
        //|| ($_FILES["type"] == "image/jpg")
        //|| ($_FILES["type"] == "image/jpeg")
         ($_FILES['uploadfile']["size"] < 200000)){
        if ($_FILES['uploadfile']["error"]>0){
            echo "Error: ".$_FILES['uploadfile']["error"]."<br>";
        }
        else {
            echo "Upload: ". $_FILES['uploadfile']["name"]."<br>";
            echo "Type:".$_FILES['uploadfile']["type"]."<br>";
            echo "Size:".($_FILES['uploadfile']["size"]/1024)."kB<br>";
            echo "Stored in: ".$_FILES["tmp_name"];

            if (file_exists("upload/".$_FILES['uploadfile']["name"]))
            {
                echo $_FILES['uploadfile']["name"]." already exists";
            }
            else
            {
                move_uploaded_file($_FILES['uploadfile']["tmp_name"],"upload/".$_FILES['uploadfile']["name"]);
                echo "Stored in: "."upload/".$_FILES['uploadfile']["name"];
            }
        }
    }
    else {
        echo "Invalid file";
    }

?>