需要上传使用Android的文件HttpPost [英] Need to upload a file using HttpPost in android

问题描述

 我想上传一个name.txt文件，而无需尤斯MultiEntitiy导入大文件作为我的文件体积小......我写了下面的code但无法上传文件。对于您的关注谢谢...

网址URL =新的URL（strUrl）;
    HttpURLConnection的康恩=（HttpURLConnection类）url.openConnection（）;
    conn.setDoInput（真正的）; //允许输入
    conn.setDoOutput（真正的）; //允许输出
    conn.setUseCaches（假）; //不要使用缓存副本
    conn.setRequestMethod（POST）;
    conn.setRequestProperty（userfile的，strEmailAddress +名.txt）;
    DOS =新DataOutputStream类（conn.getOutputStream（））;
    dos.writeBytes（内容处置：表格数据;名称= \paramName配置\）;
    Helper.printLogD（连接+ conn.getContent（）的toString（））;

字符串临时= getStringFromInputStream（conn.getInputStream（））;
Helper.printLogI（TEMP+温度）;
 

解决方案

我用下面的code：

 公共静态的JSONObject uploadImageToServer（URL字符串，字符串路径，
        字符串usuario）{
    HttpClient的HttpClient的=新DefaultHttpClient（）;
    HttpContext的localContext =新BasicHttpContext（）;
    HttpPost httpPost =新HttpPost（URL）;

    尝试 {
        MultipartEntity实体=新MultipartEntity（
                HttpMultipartMode.BROWSER_COMPATIBLE）;

        名单＆LT;的NameValuePair＆GT; namevaluepairs中=新的ArrayList＆LT;的NameValuePair＆GT;（2）;
        nameValuePairs.add（新BasicNameValuePair（userfile的，路径））;
        nameValuePairs.add（新BasicNameValuePair（tmp_name的值，usuario））;

        对于（INT指数= 0;指数＆LT; nameValuePairs.size（）;指数++）{
            如果（nameValuePairs.get（指数）.getName（）
                    .equalsIgnoreCase（userfile的））{
                //如果密钥等于形象，我们用FileBody转移
                // 数据
                entity.addPart（nameValuePairs.get（指数）.getName（）
                        新FileBody（新文件（nameValuePairs.get（指数）
                                .getValue（））））;
            } 其他 {
                //普通字符串数据
                entity.addPart（
                        nameValuePairs.get（指数）.getName（）
                        新StringBody（nameValuePairs.get（指数）.getValue（）））;
            }
        }

        httpPost.setEntity（实体）;

        HTT presponse响应= httpClient.execute（httpPost，localContext）;

        HttpEntity responseEntity = response.getEntity（）;

        如果（responseEntity！= NULL）{
            InputStream的河道= responseEntity.getContent（）;
            字符串resultString = convertStreamToString（河道）;
            instream.close（）;
            //转换字符串到JSONObject的
            JSONObject的jsonObjRecv = NULL;
            尝试 {
                jsonObjRecv =新的JSONObject（resultString）;
            }赶上（JSONException E）{
                e.printStackTrace（）;
            }
            返回jsonObjRecv;
        }

    }赶上（FileNotFoundException异常E）{
        // TODO自动生成的catch块
        e.printStackTrace（）;
    }赶上（ClientProtocolException E）{
        // TODO自动生成的catch块
        e.printStackTrace（）;
    }赶上（IOException异常E）{
        // TODO自动生成的catch块
        e.printStackTrace（）;
    }
    返回null;
}
 

您还需要在图书馆的 httpmime ，以使其发挥作用。

希望能帮助：）

I would like to upload a name.txt file without ussing MultiEntitiy "importing a large file" as my file is small in size... I have written the following code but unable to upload a file.. thanks for your concern...

URL url = new URL(strUrl);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setDoInput(true); // Allow Inputs
    conn.setDoOutput(true); // Allow Outputs
    conn.setUseCaches(false); // Don't use a Cached Copy
    conn.setRequestMethod("POST");
    conn.setRequestProperty("userfile", strEmailAddress + ".txt");
    dos = new DataOutputStream(conn.getOutputStream());
    dos.writeBytes("Content-Disposition: form-data; name=\"paramName\"");
    Helper.printLogD(" connection " + conn.getContent().toString());

String temp = getStringFromInputStream(conn.getInputStream());
Helper.printLogI("temp" + temp);

解决方案

I use the following code:

public static JSONObject uploadImageToServer(String url, String path,
        String usuario) {
    HttpClient httpClient = new DefaultHttpClient();
    HttpContext localContext = new BasicHttpContext();
    HttpPost httpPost = new HttpPost(url);

    try {
        MultipartEntity entity = new MultipartEntity(
                HttpMultipartMode.BROWSER_COMPATIBLE);

        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
        nameValuePairs.add(new BasicNameValuePair("userfile", path));
        nameValuePairs.add(new BasicNameValuePair("tmp_name", usuario));

        for (int index = 0; index < nameValuePairs.size(); index++) {
            if (nameValuePairs.get(index).getName()
                    .equalsIgnoreCase("userfile")) {
                // If the key equals to "image", we use FileBody to transfer
                // the data
                entity.addPart(nameValuePairs.get(index).getName(),
                        new FileBody(new File(nameValuePairs.get(index)
                                .getValue())));
            } else {
                // Normal string data
                entity.addPart(
                        nameValuePairs.get(index).getName(),
                        new StringBody(nameValuePairs.get(index).getValue()));
            }
        }

        httpPost.setEntity(entity);

        HttpResponse response = httpClient.execute(httpPost, localContext);

        HttpEntity responseEntity = response.getEntity();

        if (responseEntity != null) {
            InputStream instream = responseEntity.getContent();
            String resultString = convertStreamToString(instream);
            instream.close();
            // Transform the String into a JSONObject
            JSONObject jsonObjRecv = null;
            try {
                jsonObjRecv = new JSONObject(resultString);
            } catch (JSONException e) {
                e.printStackTrace();
            }
            return jsonObjRecv;
        }

    } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (ClientProtocolException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return null;
}

You need also the library httpmime to make it work.

Hope to help :)

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