java为什么Chrome会为sessionID返回null？

11 月 Questions & Answers 1162

不久前，我遇到了一个问题，Chrome和Firefox在通过JSF中的servlet创建从小程序到支持bean的连接时更改了sessionid（参见here）。上次我通过在HttpURLConnection上手动设置sessionId来解决这个问题

小程序通过servlet从支持bean请求排名标准对象。然后，用户在applet中定制排名标准（在其他代码中，将排名标准提交回支持bean，以便根据新定制的排名标准对产品进行排名）

现在Chrome将请求sessionId设置为null，但Firefox和Internet Explorer可以正常工作

在小程序中：

try
    {
        // Get the URL for the servlet.
        URL url = new URL(getCodeBase(), "editCriteriaServlet");

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

        connection.setDoInput(true);
        connection.setDoOutput(true);
        connection.setUseCaches(false);
        connection.setRequestMethod("POST");
        connection.setRequestProperty("Content-Type", "text/plain");
        connection.setRequestProperty("Cookie", "JSESSIONID=" + sessionID);

        ObjectOutputStream out = new ObjectOutputStream(connection.getOutputStream());
        out.writeObject("Request criteria Object");
        out.flush();
        out.close();

        // Read in the search criteria object.
        ObjectInputStream in = new ObjectInputStream(connection.getInputStream());
        SealedObject sealedObject = (SealedObject)in.readObject();
        in.close();

        // Decrypt the sealed object and get the zipped data.
        SecretKey key = buildSecretKey(crypKeyString);
        Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
        cipher.init(Cipher.DECRYPT_MODE, key);
        byte[] baos = (byte[]) sealedObject.getObject(cipher);
        ByteArrayInputStream gis = new ByteArrayInputStream(baos);

        // Unzip and recover the original object.
        GZIPInputStream unzipped = new GZIPInputStream(gis);
        ObjectInputStream ois = new ObjectInputStream(unzipped);
        tempMultipleSlideDataObject = (MultipleSlideDataObject15) ois.readObject();            
    }
    catch (MalformedURLException ex)
    {
        errorMessage = "Submit criteria file Malformed URL." + ex.toString();
        fireActionPerformed(new ActionEvent(this, ActionEvent.ACTION_PERFORMED, "showErrorMessageDialog_"));
        System.out.println("Model_CriteriaInterface: loadCriteriaObject: MalformedURLException occurred");
    }
    catch (Exception e)
    {
        errorMessage = "Submit criteria file ERROR exception:" + e.toString();
        fireActionPerformed(new ActionEvent(this, ActionEvent.ACTION_PERFORMED, "showErrorMessageDialog_"));
        System.out.println("Model_CriteriaInterface: loadCriteriaObject: Submit criteria file ERROR exception: " + e.toString());
    }

在servlet中：

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException
{
    System.out.println("Servlet: SessionID: " + ((HttpServletRequest)request).getRequestedSessionId());

    response.setContentType("application/x-java-serialized-object");

    try
    {
        ObjectInputStream in = new ObjectInputStream(request.getInputStream());
        in.close();

        // Get the backing bean and then use that to get the search criteria object.
        ProductSelectionBean productSelection = (ProductSelectionBean)request.getSession().getAttribute("productSelectionBean");

        Object searchObject = productSelection.getSealedRankingCriteria();

        // Send the object, in the response, back to the applet.
        ObjectOutputStream outputToApplet = new ObjectOutputStream(response.getOutputStream());
        outputToApplet.writeObject(searchObject);
        outputToApplet.flush();          
        outputToApplet.close();
    }
    catch (ClassNotFoundException ex)
    {
        Logger.getLogger(EditCriteriaServlet.class.getName()).log(Level.SEVERE, null, ex);
    }
}

servlet中的以下行：

System.out.println("Servlet: SessionID: " + ((HttpServletRequest)req).getRequestedSessionId());

-打印“null”，并且“productSelection”支持bean为null。Firefox和IE可以很好地打印sessionId

我怀疑这是Chrome中的一个bug，但是Chrome没有人回复我。有什么想法吗？有没有绕过它的建议

编辑更新-我找到了合适的Chrome报告网站（我用谷歌搜索Chrome而不是Chrome）here。看看他们是否能通过这件事联系到我

非常感谢

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java为什么Chrome会为sessionID返回null？

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