多部分後上傳文件

我想以編程方式上傳文件到服務器而不是網站。我已成功訪問該網站，並可以取消/解析不同的網頁，但我無法上傳文件。有問題的服務器使用apache tapestry進行剪紙。多部分後上傳文件

這裏是相關的Java代碼：

private String uploadFile (String params, String filePath, String HTML) throws Exception { 

    String postUrl = getUploadUrl(HTML); 
    File fileToUpload = new File(filePath); 
    postUrl = "http://printing.**.ca:9191" + postUrl; 
    String random = ""; 

    Random ran = new Random(); 
    for (int i = 0; i < 28; i++) { 
     random = random + String.valueOf(ran.nextInt(9)); 
    } 
    String boundry = "---------------------------" + random; 

    URL obj = new URL(postUrl); 
    connection = (HttpURLConnection)obj.openConnection(); 

    connection.setUseCaches(false); 
    connection.setRequestMethod("POST"); 
    connection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundry); 
    connection.setRequestProperty("Host", "printing.**.ca:9191"); 
    connection.setRequestProperty("User-Agent", USER_AGENT); 
    connection 
    .setRequestProperty("Accept", 
      "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"); 
    connection.setRequestProperty("Accept-Language", "en-US,en;q=0.5"); 
    connection.setRequestProperty("Referer", 
      "http://printing.**.ca:9191/app"); 
    connection.setRequestProperty("Connection", "keep-alive"); 

    for (String cookie : this.cookies) { 
     connection.addRequestProperty("Cookie", cookie.split(";", 1)[0]); 
    } 
    connection.setDoInput(true); 
    connection.setDoOutput(true); 

    String fileType = getFileType(fileToUpload); 

    PrintWriter writer = null; 
    try { 
     writer = new PrintWriter(new OutputStreamWriter(connection.getOutputStream())); 
     writer.println(boundry); 
     writer.println("Content-Disposition: " + "form-data; " + "name=\"file[]\"; " + "filename=\"" + fileToUpload.getName() + "\""); 
     writer.println("Content-Type: " + fileType); 
     writer.println(); 
     BufferedReader reader = null; 

     try { 
      reader = new BufferedReader(new InputStreamReader(new FileInputStream(fileToUpload))); 


      for (String line; (line = reader.readLine()) != null;) { 
       writer.print(line); 
      } 
     } finally { 
      if (reader != null) { 
       try { 
        reader.close(); 
       } catch (IOException e) {} 
      } 

     } 
     writer.println(boundry + "--"); 
    } finally { 
     if (writer != null) { 
      writer.close(); 
     } 
    } 
    int responseCode = connection.getResponseCode(); 

    BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream())); 
    StringBuffer buffer = new StringBuffer(); 
    String inputLine; 
    while((inputLine = reader.readLine()) != null) { 
     buffer.append(inputLine); 
    } 
    reader.close(); 
    return null;

我用絲鯊比較成功的請求，我的失敗的請求，我不能確定在哪裏我已經錯了。

這裏是成功的請求：

POST /upload/3229 HTTP/1.1 
Host: printing.**.ca:9191 
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:33.0) Gecko/20100101 Firefox/33.0 
Accept: application/json 
Accept-Language: en-US,en;q=0.5 
Accept-Encoding: gzip, deflate 
Cache-Control: no-cache 
X-Requested-With: XMLHttpRequest 
Referer: http://printing.**.ca:9191/app 
Content-Length: 27682 
Content-Type: multipart/form-data; boundary=---------------------------8555452061745260577115383266 
Cookie: JSESSIONID=1w7usft10tnew 
Connection: keep-alive 
Pragma: no-cache 

-----------------------------8555452061745260577115383266 
Content-Disposition: form-data; name="file[]"; filename="hello.xls" 
Content-Type: application/vnd.ms-excel 
**data*** 
-----------------------------8555452061745260577115383266--

這個返回200/OK 然後觸發關：

POST /app HTTP/1.1 
Host: printing.**.ca:9191 
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:33.0) Gecko/20100101 Firefox/33.0 
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 
Accept-Language: en-US,en;q=0.5 
Accept-Encoding: gzip, deflate 
Referer: http://printing.**.ca:9191/app 
Cookie: org.apache.tapestry.locale=en; JSESSIONID=1w7usft10tnew 
Connection: keep-alive 
Content-Type: application/x-www-form-urlencoded 
Content-Length: 66 

service=direct%2F1%2FUserWebPrintUpload%2F%24Form%240&sp=S1&Form1=

這是從我的請求的數據包：

POST /upload/3239 HTTP/1.1 
Content-Type: multipart/form-data; boundary=---------------------------6735033783816657573427817664 
User-Agent: Mozilla/5.0 
Accept: application/json 
Accept-Language: en-US,en;q=0.5 
Referer: http://printing.**.ca:9191/app 
X-Requested-With: XMLHttpRequest 
Cache-Control: no-cache 
Pragma: no-cache 
Host: printing.**.ca:9191 
Connection: keep-alive 
Content-Length: 46431 
Cookie: JSESSIONID=1i2ym6tnouzkw; 

---------------------------6735033783816657573427817664 
Content-Disposition: form-data; name="file[]"; filename="hello.xls" 
Content-Type: application/vnd.ms-excel 
**data* 
---------------------------6735033783816657573427817664--

然後我得到一個200/ok 火這個：

POST /app HTTP/1.1 
User-Agent: Mozilla/5.0 
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 
Accept-Language: en-US,en;q=0.5 
Referer: http://printing.**.ca:9191/app 
Content-Type: application/x-www-form-urlencoded 
Cache-Control: no-cache 
Pragma: no-cache 
Host: printing.**.ca:9191 
Connection: keep-alive 
Content-Length: 66 
Cookie: JSESSIONID=1i2ym6tnouzkw; 

service=direct%2F1%2FUserWebPrintUpload%2F%24Form%240&sp=S1&Form1=

並獲取上傳文件響應的錯誤。對於/ upload/3239，我抓取了包含上載文件格式的HTML。該網站也使用Dropzone.js，但有能力以簡單的上傳形式回退。對於會話cookie，字符「;」在所有其他請求上發送並且沒有任何失敗。我有權訪問網站，但似乎無法正確上傳文件。

想法??

來源

2014-10-31 andy9775

最後花了幾個小時弄清楚如何用apache HttpClient做到這一點。這是未來任何人的代碼。

private String uploadFile (String filePath, String HTML) throws Exception { 

     String postUrl = getUploadUrl(HTML); 
     postUrl = "http://printing.**.ca:9191" + postUrl; 
     HttpPost post = new HttpPost(postUrl); 

     HttpClient client = new DefaultHttpClient(); 

     MultipartEntityBuilder builder = MultipartEntityBuilder.create(); 

     builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE); 

     String random = ""; 
     Random ran = new Random(); 
     for (int i = 0; i < 28; i++) { 
      random = random + String.valueOf(ran.nextInt(9)); 
     } 
     String boundary = "---------------------------" + random; 

     final File file = new File(filePath); 

     FileBody fb = new FileBody(file, ContentType.create("application/vnd.ms-excel"), "hello.xls"); 

     builder.addPart("file[];", fb); 
     builder.setBoundary(boundary); 

     post.setEntity(builder.build()); 

     post.setHeader("Host", "printing.**.ca:9191"); 
     post.setHeader("User-Agent", USER_AGENT); 
     post.setHeader("Accept", 
       "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"); 
     post.setHeader("Accept-Language", "en-US,en;q=0.5"); 
     post.setHeader("Referer", 
       "http://printing.**.ca:9191/app"); 
     post.setHeader("Connection", "keep-alive"); 
     for (String cookie : this.cookies) { 
      for (String c : cookie.split(";")) { 
       if (c.contains("JSESSION")) { 
        post.setHeader("Cookie", c); 
       } 
      } 
     } 

     HttpResponse response = client.execute(post); 
     String reply = sendPost("http://printing.**.ca:9191/app", getUploadParameters(HTML)); 

     return response.toString(); 
    }

來源

2014-10-31 06:11:59 andy9775

多部分後上傳文件

回答

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