Android 的网络编程(8)-文件上传功能

public class MainActivity extends Activity   {      private static final String TAG = "MainActivity";      private EditText timelengthText;      private EditText titleText;      private EditText videoText;            @Override      public void onCreate(Bundle savedInstanceState)       {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);         //提交上传按钮         Button button = (Button) this.findViewById(R.id.button);         timelengthText = (EditText) this.findViewById(R.id.timelength);         videoText = (EditText) this.findViewById(R.id.video);         titleText = (EditText) this.findViewById(R.id.title);         button.setOnClickListener(new View.OnClickListener()          {                          @Override              public void onClick(View v)               {                  String title = titleText.getText().toString();                  String timelength = timelengthText.getText().toString();                  Map<String, String> params = new HashMap<String, String>();                  params.put("method", "save");                  params.put("title", title);                  params.put("timelength", timelength);                  try                   {                                         //得到SDCard的目录                      File uploadFile = new File(Environment.getExternalStorageDirectory(), videoText.getText().toString());                      //上传音频文件                      FormFile formfile = new FormFile("02.mp3", uploadFile, "video", "audio/mpeg");                      SocketHttpRequester.post("http://192.168.1.100:8080/videoweb/video/manage.do", params, formfile);                      Toast.makeText(MainActivity.this, R.string.success, 1).show();                  }                  catch (Exception e)                   {                      Toast.makeText(MainActivity.this, R.string.error, 1).show();                      Log.e(TAG, e.toString());                  }              }          });              }  }

.上传工具类，注意里面构造协议字符串需要根据不同的提交表单来处理public class SocketHttpRequester   {      /**      * 发送xml数据      * @param path 请求地址      * @param xml xml数据      * @param encoding 编码      * @return      * @throws Exception      */      public static byte[] postXml(String path, String xml, String encoding) throws Exception{          byte[] data = xml.getBytes(encoding);          URL url = new URL(path);          HttpURLConnection conn = (HttpURLConnection)url.openConnection();          conn.setRequestMethod("POST");          conn.setDoOutput(true);          conn.setRequestProperty("Content-Type", "text/xml; charset="+ encoding);          conn.setRequestProperty("Content-Length", String.valueOf(data.length));          conn.setConnectTimeout(5 * 1000);          OutputStream outStream = conn.getOutputStream();          outStream.write(data);          outStream.flush();          outStream.close();          if(conn.getResponseCode()==200){              return readStream(conn.getInputStream());          }          return null;      }            /**      * 直接通过HTTP协议提交数据到服务器,实现如下面表单提交功能:      *   <FORM METHOD=POST ACTION="http://192.168.0.200:8080/ssi/fileload/test.do" enctype="multipart/form-data">             <INPUT TYPE="text" NAME="name">             <INPUT TYPE="text" NAME="id">             <input type="file" name="imagefile"/>             <input type="file" name="zip"/>          </FORM>      * @param path 上传路径(注：避免使用localhost或127.0.0.1这样的路径测试，      *                  因为它会指向手机模拟器，你可以使用http://www.baidu.com或http://192.168.1.10:8080这样的路径测试)      * @param params 请求参数 key为参数名,value为参数值      * @param file 上传文件      */      public static boolean post(String path, Map<String, String> params, FormFile[] files) throws Exception      {             //数据分隔线          final String BOUNDARY = "---------------------------7da2137580612";           //数据结束标志"---------------------------7da2137580612--"          final String endline = "--" + BOUNDARY + "--/r/n";                    //下面两个for循环都是为了得到数据长度参数，依据表单的类型而定          //首先得到文件类型数据的总长度(包括文件分割线)          int fileDataLength = 0;          for(FormFile uploadFile : files)          {              StringBuilder fileExplain = new StringBuilder();              fileExplain.append("--");              fileExplain.append(BOUNDARY);              fileExplain.append("/r/n");              fileExplain.append("Content-Disposition: form-data;name=/""+ uploadFile.getParameterName()+"/";filename=/""+ uploadFile.getFilname() + "/"/r/n");              fileExplain.append("Content-Type: "+ uploadFile.getContentType()+"/r/n/r/n");              fileExplain.append("/r/n");              fileDataLength += fileExplain.length();              if(uploadFile.getInStream()!=null){                  fileDataLength += uploadFile.getFile().length();              }else{                  fileDataLength += uploadFile.getData().length;              }          }          //再构造文本类型参数的实体数据          StringBuilder textEntity = new StringBuilder();                  for (Map.Entry<String, String> entry : params.entrySet())           {                textEntity.append("--");              textEntity.append(BOUNDARY);              textEntity.append("/r/n");              textEntity.append("Content-Disposition: form-data; name=/""+ entry.getKey() + "/"/r/n/r/n");              textEntity.append(entry.getValue());              textEntity.append("/r/n");          }                    //计算传输给服务器的实体数据总长度(文本总长度+数据总长度+分隔符)          int dataLength = textEntity.toString().getBytes().length + fileDataLength +  endline.getBytes().length;                    URL url = new URL(path);          //默认端口号其实可以不写          int port = url.getPort()==-1 ? 80 : url.getPort();          //建立一个Socket链接          Socket socket = new Socket(InetAddress.getByName(url.getHost()), port);          //获得一个输出流（从Android流到web）          OutputStream outStream = socket.getOutputStream();          //下面完成HTTP请求头的发送          String requestmethod = "POST "+ url.getPath()+" HTTP/1.1/r/n";          outStream.write(requestmethod.getBytes());          //构建accept          String accept = "Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*/r/n";          outStream.write(accept.getBytes());          //构建language          String language = "Accept-Language: zh-CN/r/n";          outStream.write(language.getBytes());          //构建contenttype          String contenttype = "Content-Type: multipart/form-data; boundary="+ BOUNDARY+ "/r/n";          outStream.write(contenttype.getBytes());          //构建contentlength          String contentlength = "Content-Length: "+ dataLength + "/r/n";          outStream.write(contentlength.getBytes());          //构建alive          String alive = "Connection: Keep-Alive/r/n";                  outStream.write(alive.getBytes());          //构建host          String host = "Host: "+ url.getHost() +":"+ port +"/r/n";          outStream.write(host.getBytes());          //写完HTTP请求头后根据HTTP协议再写一个回车换行          outStream.write("/r/n".getBytes());          //把所有文本类型的实体数据发送出来          outStream.write(textEntity.toString().getBytes());                             //把所有文件类型的实体数据发送出来          for(FormFile uploadFile : files)          {              StringBuilder fileEntity = new StringBuilder();              fileEntity.append("--");              fileEntity.append(BOUNDARY);              fileEntity.append("/r/n");              fileEntity.append("Content-Disposition: form-data;name=/""+ uploadFile.getParameterName()+"/";filename=/""+ uploadFile.getFilname() + "/"/r/n");              fileEntity.append("Content-Type: "+ uploadFile.getContentType()+"/r/n/r/n");              outStream.write(fileEntity.toString().getBytes());              //边读边写              if(uploadFile.getInStream()!=null)              {                  byte[] buffer = new byte[1024];                  int len = 0;                  while((len = uploadFile.getInStream().read(buffer, 0, 1024))!=-1)                  {                      outStream.write(buffer, 0, len);                  }                  uploadFile.getInStream().close();              }              else              {                  outStream.write(uploadFile.getData(), 0, uploadFile.getData().length);              }              outStream.write("/r/n".getBytes());          }          //下面发送数据结束标志，表示数据已经结束          outStream.write(endline.getBytes());                  BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));          //读取web服务器返回的数据，判断请求码是否为200，如果不是200，代表请求失败          if(reader.readLine().indexOf("200")==-1)          {              return false;          }          outStream.flush();          outStream.close();          reader.close();          socket.close();          return true;      }            /**       * 提交数据到服务器       * @param path 上传路径(注：避免使用localhost或127.0.0.1这样的路径测试，因为它会指向手机模拟器，你可以使用http://www.baidu.com或http://192.168.1.10:8080这样的路径测试)       * @param params 请求参数 key为参数名,value为参数值       * @param file 上传文件       */      public static boolean post(String path, Map<String, String> params, FormFile file) throws Exception      {         return post(path, params, new FormFile[]{file});      }      /**      * 提交数据到服务器      * @param path 上传路径(注：避免使用localhost或127.0.0.1这样的路径测试，因为它会指向手机模拟器，你可以使用http://www.baidu.com或http://192.168.1.10:8080这样的路径测试)      * @param params 请求参数 key为参数名,value为参数值      * @param encode 编码      */      public static byte[] postFromHttpClient(String path, Map<String, String> params, String encode) throws Exception      {          //用于存放请求参数          List<NameValuePair> formparams = new ArrayList<NameValuePair>();          for(Map.Entry<String, String> entry : params.entrySet())          {              formparams.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));          }          UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formparams, encode);          HttpPost httppost = new HttpPost(path);          httppost.setEntity(entity);          //看作是浏览器          HttpClient httpclient = new DefaultHttpClient();          //发送post请求            HttpResponse response = httpclient.execute(httppost);             return readStream(response.getEntity().getContent());      }      /**      * 发送请求      * @param path 请求路径      * @param params 请求参数 key为参数名称 value为参数值      * @param encode 请求参数的编码      */      public static byte[] post(String path, Map<String, String> params, String encode) throws Exception      {          //String params = "method=save&name="+ URLEncoder.encode("老毕", "UTF-8")+ "&age=28&";//需要发送的参数          StringBuilder parambuilder = new StringBuilder("");          if(params!=null && !params.isEmpty())          {              for(Map.Entry<String, String> entry : params.entrySet())              {                  parambuilder.append(entry.getKey()).append("=")                      .append(URLEncoder.encode(entry.getValue(), encode)).append("&");              }              parambuilder.deleteCharAt(parambuilder.length()-1);          }          byte[] data = parambuilder.toString().getBytes();          URL url = new URL(path);          HttpURLConnection conn = (HttpURLConnection)url.openConnection();          //设置允许对外发送请求参数          conn.setDoOutput(true);          //设置不进行缓存          conn.setUseCaches(false);          conn.setConnectTimeout(5 * 1000);          conn.setRequestMethod("POST");          //下面设置http请求头          conn.setRequestProperty("Accept", "image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*");          conn.setRequestProperty("Accept-Language", "zh-CN");          conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)");          conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");          conn.setRequestProperty("Content-Length", String.valueOf(data.length));          conn.setRequestProperty("Connection", "Keep-Alive");                    //发送参数          DataOutputStream outStream = new DataOutputStream(conn.getOutputStream());          outStream.write(data);//把参数发送出去          outStream.flush();          outStream.close();          if(conn.getResponseCode()==200)          {              return readStream(conn.getInputStream());          }          return null;      }            /**       * 读取流       * @param inStream       * @return 字节数组       * @throws Exception       */      public static byte[] readStream(InputStream inStream) throws Exception      {          ByteArrayOutputStream outSteam = new ByteArrayOutputStream();          byte[] buffer = new byte[1024];          int len = -1;          while( (len=inStream.read(buffer)) != -1)          {              outSteam.write(buffer, 0, len);          }          outSteam.close();          inStream.close();          return outSteam.toByteArray();      }  }

public class StreamTool   {      /**      * 从输入流读取数据      * @param inStream      * @return      * @throws Exception      */      public static byte[] readInputStream(InputStream inStream) throws Exception{          ByteArrayOutputStream outSteam = new ByteArrayOutputStream();          byte[] buffer = new byte[1024];          int len = 0;          while( (len = inStream.read(buffer)) !=-1 ){              outSteam.write(buffer, 0, len);          }          outSteam.close();          inStream.close();          return outSteam.toByteArray();      }  }

/**  * 使用JavaBean封装上传文件数据  *   */  public class FormFile   {      //上传文件的数据       private byte[] data;      private InputStream inStream;      private File file;      //文件名称       private String filname;      //请求参数名称      private String parameterName;      //内容类型      private String contentType = "application/octet-stream";            /**      * 上传小文件，把文件数据先读入内存      * @param filname      * @param data      * @param parameterName      * @param contentType      */      public FormFile(String filname, byte[] data, String parameterName, String contentType)       {          this.data = data;          this.filname = filname;          this.parameterName = parameterName;          if(contentType!=null) this.contentType = contentType;      }            /**      * 上传大文件，一边读文件数据一边上传      * @param filname      * @param file      * @param parameterName      * @param contentType      */      public FormFile(String filname, File file, String parameterName, String contentType)       {          this.filname = filname;          this.parameterName = parameterName;          this.file = file;          try           {              this.inStream = new FileInputStream(file);          }          catch (FileNotFoundException e)           {              e.printStackTrace();          }          if(contentType!=null) this.contentType = contentType;      }            public File getFile()       {          return file;      }      public InputStream getInStream()       {          return inStream;      }      public byte[] getData()       {          return data;      }      public String getFilname()       {          return filname;      }      public void setFilname(String filname)      {          this.filname = filname;      }      public String getParameterName()       {          return parameterName;      }      public void setParameterName(String parameterName)       {          this.parameterName = parameterName;      }      public String getContentType()      {          return contentType;      }      public void setContentType(String contentType)       {          this.contentType = contentType;      }     }

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