[Android開發]Android之使用Http協議實現文件上傳功能

注意一般使用Http協議上傳的文件都比較小，一般是小於2M

這裏示例是上傳一個小的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);
       //提交上傳按鈕
       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的目錄
                    File uploadFile = new File(Environment.getExternalStorageDirectory(), videoText.getText().toString());
                    //上傳音頻文件
                    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.上傳工具類，注意裏面構造協議字符串需要根據不同的提交表單來處理

public class SocketHttpRequester
{
    /**
     * 發送xml數據
     * @param path 請求地址
     * @param xml xml數據
     * @param encoding 編碼
     * @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;
    }

    /**
     * 直接通過HTTP協議提交數據到服務器,實現如下面表單提交功能:
     *   <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 上傳路徑(注：避免使用localhost或127.0.0.1這樣的路徑測試，
     *                  因爲它會指向手機模擬器，你可以使用http://www.baidu.com或http://192.168.1.10:8080這樣的路徑測試)
     * @param params 請求參數 key爲參數名,value爲參數值
     * @param file 上傳文件
     */
    public static boolean post(String path, Map<String, String> params, FormFile[] files) throws Exception
    {
        //數據分隔線
        final String BOUNDARY = "---------------------------7da2137580612";
        //數據結束標誌"---------------------------7da2137580612--"
        final String endline = "--" + BOUNDARY + "--/r/n";

        //下面兩個for循環都是爲了得到數據長度參數，依據表單的類型而定
        //首先得到文件類型數據的總長度(包括文件分割線)
        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;
            }
        }
        //再構造文本類型參數的實體數據
        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");
        }

        //計算傳輸給服務器的實體數據總長度(文本總長度+數據總長度+分隔符)
        int dataLength = textEntity.toString().getBytes().length + fileDataLength +  endline.getBytes().length;

        URL url = new URL(path);
        //默認端口號其實可以不寫
        int port = url.getPort()==-1 ? 80 : url.getPort();
        //建立一個Socket鏈接
        Socket socket = new Socket(InetAddress.getByName(url.getHost()), port);
        //獲得一個輸出流（從Android流到web）
        OutputStream outStream = socket.getOutputStream();
        //下面完成HTTP請求頭的發送
        String requestmethod = "POST "+ url.getPath()+" HTTP/1.1/r/n";
        outStream.write(requestmethod.getBytes());
        //構建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());
        //構建language
        String language = "Accept-Language: zh-CN/r/n";
        outStream.write(language.getBytes());
        //構建contenttype
        String contenttype = "Content-Type: multipart/form-data; boundary="+ BOUNDARY+ "/r/n";
        outStream.write(contenttype.getBytes());
        //構建contentlength
        String contentlength = "Content-Length: "+ dataLength + "/r/n";
        outStream.write(contentlength.getBytes());
        //構建alive
        String alive = "Connection: Keep-Alive/r/n";
        outStream.write(alive.getBytes());
        //構建host
        String host = "Host: "+ url.getHost() +":"+ port +"/r/n";
        outStream.write(host.getBytes());
        //寫完HTTP請求頭後根據HTTP協議再寫一個回車換行
        outStream.write("/r/n".getBytes());
        //把所有文本類型的實體數據發送出來
        outStream.write(textEntity.toString().getBytes());

        //把所有文件類型的實體數據發送出來
        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());
            //邊讀邊寫
            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());
        }
        //下面發送數據結束標誌，表示數據已經結束
        outStream.write(endline.getBytes());
        BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
        //讀取web服務器返回的數據，判斷請求碼是否爲200，如果不是200，代表請求失敗
        if(reader.readLine().indexOf("200")==-1)
        {
            return false;
        }
        outStream.flush();
        outStream.close();
        reader.close();
        socket.close();
        return true;
    }

    /**
     * 提交數據到服務器
     * @param path 上傳路徑(注：避免使用localhost或127.0.0.1這樣的路徑測試，因爲它會指向手機模擬器，你可以使用http://www.baidu.com或http://192.168.1.10:8080這樣的路徑測試)
     * @param params 請求參數 key爲參數名,value爲參數值
     * @param file 上傳文件
     */
    public static boolean post(String path, Map<String, String> params, FormFile file) throws Exception
    {
       return post(path, params, new FormFile[]{file});
    }
    /**
     * 提交數據到服務器
     * @param path 上傳路徑(注：避免使用localhost或127.0.0.1這樣的路徑測試，因爲它會指向手機模擬器，你可以使用http://www.baidu.com或http://192.168.1.10:8080這樣的路徑測試)
     * @param params 請求參數 key爲參數名,value爲參數值
     * @param encode 編碼
     */
    public static byte[] postFromHttpClient(String path, Map<String, String> params, String encode) throws Exception
    {
        //用於存放請求參數
        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);
        //看作是瀏覽器
        HttpClient httpclient = new DefaultHttpClient();
        //發送post請求
        HttpResponse response = httpclient.execute(httppost);
        return readStream(response.getEntity().getContent());
    }
    /**
     * 發送請求
     * @param path 請求路徑
     * @param params 請求參數 key爲參數名稱 value爲參數值
     * @param encode 請求參數的編碼
     */
    public static byte[] post(String path, Map<String, String> params, String encode) throws Exception
    {
        //String params = "method=save&name="+ URLEncoder.encode("老畢", "UTF-8")+ "&age=28&";//需要發送的參數
        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();
        //設置允許對外發送請求參數
        conn.setDoOutput(true);
        //設置不進行緩存
        conn.setUseCaches(false);
        conn.setConnectTimeout(5 * 1000);
        conn.setRequestMethod("POST");
        //下面設置http請求頭
        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");

        //發送參數
        DataOutputStream outStream = new DataOutputStream(conn.getOutputStream());
        outStream.write(data);//把參數發送出去
        outStream.flush();
        outStream.close();
        if(conn.getResponseCode()==200)
        {
            return readStream(conn.getInputStream());
        }
        return null;
    }

    /**
     * 讀取流
     * @param inStream
     * @return 字節數組
     * @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
{
    /**
     * 從輸入流讀取數據
     * @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封裝上傳文件數據
 *
 */
public class FormFile
{
    //上傳文件的數據
    private byte[] data;
    private InputStream inStream;
    private File file;
    //文件名稱
    private String filname;
    //請求參數名稱
    private String parameterName;
    //內容類型
    private String contentType = "application/octet-stream";

    /**
     * 上傳小文件，把文件數據先讀入內存
     * @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;
    }

    /**
     * 上傳大文件，一邊讀文件數據一邊上傳
     * @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;
    }
}