Android--使用Http协议实现文件上传

 注意一般使用Http协议上传的文件都比较小，一般是小于2M，大文件使用socket协议！！！！

这里示例是上传一个小的MP3文件：

1.主Activity：MainActivity.java

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());
    }
   }
  });       
    }
}

2.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（构造http协议可用sun 控制台跟踪上传的信息。来一句句构造）！！

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;
 } 
}