Http协议之content

用android 通过http协议提交数据至服务器 content的内容

代码如下：

private static JSONObject connUpload(String baseUrl, Map<String, String> params, String content) throws IOException, JSONException {

String end = "\r\n";

        String hyphens = "--";

        String boundary = UUID.randomUUID().toString().replace("-", "");
//将需求连接转换成实际链接  如加上手机的基本信息等。

        String realUrl = HttpUtil.buildUrl(baseUrl);

        LogUtil.i("realurl:" + realUrl);
URL url = new URL(realUrl);

        HttpURLConnection conn = (HttpURLConnection) url.openConnection();

        conn.setConnectTimeout(TIMEOUT);
//Post 请求不能使用缓存

        conn.setUseCaches(false);

        conn.setDoOutput(true);

        StringBuilder sb = new StringBuilder();

//        sb.append("&userDto.chatMessage.receiver=" + msg.getReceiver());

//        sb.append("&userDto.chatMessage.type=" + msg.getType());
conn.setRequestProperty("Connection", "Keep-Alive");

        conn.setRequestProperty("Charset", "UTF-8");

        conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);

        conn.setRequestProperty("enctype", "multipart/form-data;");
DataOutputStream writer = new DataOutputStream(conn.getOutputStream());
writer.writeBytes("Content-Type: multipart/form-data;boundary=" + boundary + end);

        writer.writeBytes(hyphens + boundary + end);
if(params != null && params.size() > 0) {

            for(String key : params.keySet()) {

                sb.append("Content-Disposition: form-data; name=\"").append(key).append("\"").append(end).append(end).append(params.get(key)).append(end + hyphens).append(boundary).append(end);

            }

        }
writer.writeBytes(sb.toString());
// 构造DataOutputStream流

        writer.writeBytes("Content-Disposition: form-data; " + "name=\"file\";filename=\"" + content + "\"" + end);

        writer.writeBytes("Content-Type: multipart/form-data;" + end);

        writer.writeBytes(end);
/* 取得文件的FileInputStream */

        FileInputStream fStream = new FileInputStream(content);

        /* 设定每次写入1024bytes */

        byte[] buffer = new byte[Constant.NET_BUFF_SIZE];

        int length = -1;

        /* 从文件读取数据到缓冲区 */

        while ((length = fStream.read(buffer)) != -1) {

            /* 将数据写入DataOutputStream中 */

            LogUtil.i("stream: "+length);

            writer.write(buffer, 0, length);

        }

        writer.writeBytes(end);

        fStream.close();
writer.writeBytes(hyphens + boundary + hyphens + end);

        writer.flush();

        writer.close();
//, Constant.CHARSET

        BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
sb = new StringBuilder();

        char[] buff = new char[Constant.NET_BUFF_SIZE];

        int flag = 0;

        while((flag = reader.read(buff)) != -1) {

            sb.append(buff, 0, flag);

        }
reader.close();

        conn.disconnect();
LogUtil.i("response:" + sb);
return new JSONObject(sb.toString());

    }

Http协议之content,码迷,mamicode.com