Python的HTTPConnection.request需要四个参数，Java怎么写？

/**
 * 网络访问，上传附件 五个参数： 1、String url：指定表单提交的url地址 2、Map<String, String>
 * map：将上传控件之外的其他控件的数据信息存入map对象 3、String filePath：指定要上传到服务器的文件的客户端路径
 * 4、byte[] body_data：获取到要上传的文件的输入流信息，通过ByteArrayOutputStream流转成byte[]
 * 5、String charset：设置字符集
 */
public static String doPostSubmitBody(String url, Map<String, String> map,
        String filePath, byte[] body_data, String charset) {
    // 设置三个常用字符串常量：换行、前缀、分界线（NEWLINE、PREFIX、BOUNDARY）；
    final String NEWLINE = "\r\n";
    final String PREFIX = "--";
    final String BOUNDARY = "#";// 取代---------------------------7df3a01e37070c
    HttpURLConnection httpConn = null;
    BufferedInputStream bis = null;
    DataOutputStream dos = null;
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    try {
        // 实例化URL对象。调用URL有参构造方法，参数是一个url地址；
        URL urlObj = new URL(url);
        // 调用URL对象的openConnection()方法，创建HttpURLConnection对象；
        httpConn = (HttpURLConnection) urlObj.openConnection();
        // 调用HttpURLConnection对象setDoOutput(true)、setDoInput(true)、setRequestMethod("POST")；
        httpConn.setDoInput(true);
        httpConn.setDoOutput(true);
        httpConn.setRequestMethod("POST");
        // 设置Http请求头信息；（Accept、Connection、Accept-Encoding、Cache-Control、Content-Type、User-Agent）
        httpConn.setUseCaches(false);
        httpConn.setRequestProperty("Connection", "Keep-Alive");
        httpConn.setRequestProperty("Accept", "*/*");
        httpConn.setRequestProperty("Accept-Encoding", "gzip, deflate");
        httpConn.setRequestProperty("Cache-Control", "no-cache");
        httpConn.setRequestProperty("Content-Type",
                "multipart/form-data; boundary=" + BOUNDARY);
        httpConn.setRequestProperty(
                "User-Agent",
                "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30)");
        // 调用HttpURLConnection对象的connect()方法，建立与服务器的真实连接；
        httpConn.connect();

        // 调用HttpURLConnection对象的getOutputStream()方法构建输出流对象；
        dos = new DataOutputStream(httpConn.getOutputStream());
        // 获取表单中上传控件之外的控件数据，写入到输出流对象（根据HttpWatch提示的流信息拼凑字符串）；
        if (map != null && !map.isEmpty()) {
            for (Map.Entry<String, String> entry : map.entrySet()) {
                String key = entry.getKey();
                String value = map.get(key);
                dos.writeBytes(PREFIX + BOUNDARY + NEWLINE);
                dos.writeBytes("Content-Disposition: form-data; "
                        + "name=\"" + key + "\"" + NEWLINE);
                dos.writeBytes(NEWLINE);
                dos.writeBytes(URLEncoder.encode(value.toString(), charset));
                // 或者写成：dos.write(value.toString().getBytes(charset));
                dos.writeBytes(NEWLINE);
            }
        }

        // 获取表单中上传控件的数据，写入到输出流对象（根据HttpWatch提示的流信息拼凑字符串）；
        if (body_data != null && body_data.length > 0) {
            dos.writeBytes(PREFIX + BOUNDARY + NEWLINE);
            String fileName = filePath.substring(filePath
                    .lastIndexOf(File.separatorChar) + 1);
            dos.writeBytes("Content-Disposition: form-data; " + "name=\""
                    + "uploadFile" + "\"" + "; filename=\"" + fileName
                    + "\"" + NEWLINE);
            dos.writeBytes(NEWLINE);
            dos.write(body_data);
            dos.writeBytes(NEWLINE);
        }
        dos.writeBytes(PREFIX + BOUNDARY + PREFIX + NEWLINE);
        dos.flush();

        // 调用HttpURLConnection对象的getInputStream()方法构建输入流对象；
        byte[] buffer = new byte[8 * 1024];
        int c = 0;
        // 调用HttpURLConnection对象的getResponseCode()获取客户端与服务器端的连接状态码。如果是200，则执行以下操作，否则返回null；
        if (httpConn.getResponseCode() == 200) {
            bis = new BufferedInputStream(httpConn.getInputStream());
            while ((c = bis.read(buffer)) != -1) {
                baos.write(buffer, 0, c);
                baos.flush();
            }
        }
        // 将输入流转成字节数组，返回给客户端。
        return new String(baos.toByteArray(), charset);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            if (dos != null) {
                dos.close();
            }
            if (bis != null) {
                bis.close();
            }
            if (baos != null) {
                baos.close();
            }
            httpConn.disconnect();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    return null;
}

String path = "http://m.xylbh.cn/android.xml";
            try {
                URL url = new URL(path);
                //建立连接
                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                    //设置请求方式
                    //conn.setRequestMethod(GET);
                //设置请求超时时间
                conn.setConnectTimeout(5000);
                //设置读取超时时间
                conn.setReadTimeout(5000);
                //判断是否获取成功
                //获得输入流
                InputStream is = conn.getInputStream();