Android 本地文件上传到服务器

/**
 * fileName 文件名(不带后缀)
 * filePath 文件的本地路径 (xxx / xx / test.jpg)
 */

public static  void uploadFile(String strServerUrl, String strFile) {
    String end = \"\\r\\n\";
    String twoHyphens = \"--\";
    String boundary = \"*****\";
    try {
        URL url = new URL(strServerUrl);
        HttpURLConnection con = (HttpURLConnection) url.openConnection();
         /* 允许Input、Output，不使用Cache */
        con.setDoInput(true);
        con.setDoOutput(true);
        con.setUseCaches(false);
        /* 设置传送的method=POST */
        con.setRequestMethod(\"POST\");
        /* setRequestProperty */
        con.setRequestProperty(\"Connection\", \"Keep-Alive\");
        con.setRequestProperty(\"Charset\", \"UTF-8\");
        con.setRequestProperty(\"Content-Type\",
                \"multipart/form-data;boundary=\" + boundary);

        String strFileName = strFile.substring(strFile.lastIndexOf(\"/\") + 1);
        /* 设置DataOutputStream */
        DataOutputStream ds =
                new DataOutputStream(con.getOutputStream());
        ds.writeBytes(twoHyphens + boundary + end);
        ds.writeBytes(\"Content-Disposition: form-data; \" +
                \"name=\\\"file1\\\";filename=\\\"\" +
                strFileName + \"\\\"\" + end);
        ds.writeBytes(end);
        /* 取得文件的FileInputStream */
        FileInputStream fStream = new FileInputStream(strFile);
        /* 设置每次写入1024bytes */
        int bufferSize = 10240;
        byte[] buffer = new byte[bufferSize];
        int length = -1;
         /* 从文件读取数据至缓冲区 */
        while ((length = fStream.read(buffer)) != -1) {
        /* 将资料写入DataOutputStream中 */
            ds.write(buffer, 0, length);
        }
        ds.writeBytes(end);
        ds.writeBytes(twoHyphens + boundary + twoHyphens + end);
        /* close streams */
        fStream.close();
        ds.flush();
        /* 取得Response内容 */
        InputStream is = con.getInputStream();
        int ch;
        StringBuffer b = new StringBuffer();
        while ((ch = is.read()) != -1) {
            b.append((char) ch);
        }
        /* 关闭DataOutputStream */
        ds.close();
        is.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}