Http协议上传文件-Socket

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/**

*
* 转载请标明出处：http://blog.csdn.net/u013598111/article/details/51440346

* @author：【JunTao_sun】
*
*
*/

小文件上传

public class Network_One {//.*（ 二进制流，不知道下载文件类型）application/octet-stream private static final String TAG = "uploadFile";    private static final int TIME_OUT = 5*1000;   //超时时间    private static final String CHARSET = "UTF-8"; //设置编码    public static void fileUpLoad(Map<String, String> params,String fileUrl,    String filePath,Context mContext,String fileName )  {        String  BOUNDARY =  UUID.randomUUID().toString();  //边界标识   随机生成            String CONTENT_TYPE = "multipart/form-data";   //内容类型                try {        StringBuilder sb = new StringBuilder();          /**          * 普通的表单数据          */          for (String key : params.keySet()) {              sb.append("--" + BOUNDARY + "\r\n");              sb.append("Content-Disposition: form-data; name=\"" + key + "\""                      + "\r\n");              sb.append("\r\n");              sb.append(params.get(key) + "\r\n");          }          File file=new File(filePath);        if(!file.exists()) return;        /**          * 上传文件的头          */          sb.append("--" + BOUNDARY + "\r\n");          sb.append("Content-Disposition: form-data; name=\""+fileName                   + "\"; filename=\"" + fileName+ "\"" + "\r\n");          sb.append("Content-Type: image/jpeg" + "\r\n");        sb.append("\r\n");        byte[] headerInfo=sb.toString().getBytes("UTF-8");byte[] endInfo=("\r\n--" + BOUNDARY + "--\r\n").getBytes("UTF-8");              URL url = new URL(fileUrl);HttpURLConnection  conn=(HttpURLConnection) url.openConnection(); conn.setReadTimeout(TIME_OUT);            conn.setConnectTimeout(TIME_OUT);            conn.setDoInput(true);  //允许输入流            conn.setDoOutput(true); //允许输出流            conn.setUseCaches(false);  //不允许使用缓存            conn.setRequestMethod("POST");  //请求方式            conn.setRequestProperty("Charset", CHARSET);  //设置编码            conn.setRequestProperty("connection", "keep-alive");               conn.setRequestProperty("Content-Type", CONTENT_TYPE + ";boundary=" + BOUNDARY);             conn.setRequestProperty("Content-Length", String                      .valueOf(headerInfo.length + file.length()                              + endInfo.length));              if(filePath!=null)            {                /**                 * 当文件不为空，把文件包装并且上传                 */                OutputStream dos = conn.getOutputStream();                InputStream  is=new FileInputStream(file);                    dos.write(headerInfo);                         byte[] bytes = new byte[1024];                int len = 0;                while((len=is.read(bytes))!=-1)                {                    dos.write(bytes, 0, len);                                  }                is.close();                dos.write(endInfo);                     dos.flush();                /**                 * 获取响应码  200=成功                 * 当响应成功，获取响应的流                   */                int res = conn.getResponseCode();                  dos.close();                conn.disconnect();            }} catch (MalformedURLException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}

下面是利用socket 用流的方式上传比较大的文件：

请求失败 400 的话就是客服端问题，检查请求头的格式，是否有写错的地方。

public static void BigUploader(Map<String, String> params,String fileUrl,    String filePath,Context mContext,String fileName ){                 String  BOUNDARY =  UUID.randomUUID().toString();  //边界标识   随机生成         StringBuilder sb = new StringBuilder();               for (String key : params.keySet()) {              sb.append("--" + BOUNDARY + "\r\n");              sb.append("Content-Disposition: form-data; name=\"" + key + "\""                      + "\r\n");              sb.append("\r\n");              sb.append(params.get(key) + "\r\n");          }          File file=new File(filePath);        Log.e("文件是否存在", file.exists()+"");//        if(!file.exists()) return;                /**          * 上传文件的头          */          sb.append("--" + BOUNDARY + "\r\n");          sb.append("Content-Disposition: form-data; name=\""+file.getName()                   + "\"; filename=\"" + file.getName()+ "\"" + "\r\n");          sb.append("Content-Type: image/jpeg" + "\r\n");        sb.append("\r\n");    try {    byte[] headerInfo=sb.toString().getBytes("UTF-8");byte[] endInfo=("\r\n--" + BOUNDARY + "--\r\n").getBytes("UTF-8"); URLurl = new URL(fileUrl);int port=url.getPort()==-1?80:url.getPort();Socket socket=  new Socket(InetAddress.getByName(url.getHost()),port);//SocketAddress dest = new InetSocketAddress(url.getHost(), url.getPort());//socket.connect(dest);OutputStream out=socket.getOutputStream();      PrintStream ps = new PrintStream(out, true, "UTF-8");// 写出请求头ps.println("POST " + url.getPath() + " HTTP/1.1");ps.println("Accept-Language: zh-CN");        ps.println("Content-Type: multipart/form-data; boundary=" + BOUNDARY);ps.println("Content-Length: "+ String.valueOf(headerInfo.length + file.length()+ endInfo.length));ps.println("Accept: text/html, application/xhtml+xml, application/xml, */*");ps.println("Host:"+url.getHost()+":"+url.getPort());        ps.println("Connection:keep-Alive");out.write("\r\n".getBytes("UTF-8"));out.write(headerInfo);int len;byte[] buffer=new byte[1024];FileInputStream input =new FileInputStream(file);while ((len=input.read(buffer))!=-1) {out.write(buffer,0,len);}out.write(endInfo);//out.flush();BufferedReader reader=new BufferedReader(new InputStreamReader(socket.getInputStream())); Log.e(TAG, reader.readLine()); Log.e(TAG, reader.readLine()); Log.e(TAG, reader.readLine()); Log.e(TAG, reader.readLine()+);         Log.e(TAG, "succeed-uploader");input.close();ps.close();socket.close();} catch (UnknownHostException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}            }}

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