JSP / servlet / IE组合不会在Enter上提交表单详细信息 [英] JSP / servlet / IE combination doesn't submit form detail on Enter

问题描述

使用IE 7，JDK 1.6和Sun Web服务器7.

Using IE 7, JDK 1.6 and Sun Web server 7.

在jsp表单中，我们有：

Inside the jsp form, we have:

<input type="text" name="id" maxlength="20" />
<input ... type="submit" name="send" value="Send"/>

即。一个文本框和一个提交按钮（称为发送）。

i.e. a text box and a "Submit" button (called Send).

并且servlet具有：

and the servlet has:

if (request.getParameter("send") != null && request.getParameter("send").trim().length() > 0) { ... }

使用 Fiddler 和IE，我们可以看到当我们填充id文本框并按Enter键时发送以下内容：

Using Fiddler and IE, we can see that the following is sent when we populate the id text box and hit Enter:

id = 123456

id=123456

然而，使用Fiddler和IE，我们可以看到在填充id时发送以下内容文本框并单击发送按钮：

However, using Fiddler and IE, we can see that the following is sent when we populate the id text box and click the Send button:

userId = 123456& send = Send

userId=123456&send=Send

最终结果是有效地点击Enter键无效。

The end result is that hitting the Enter key effectively does nothing.

在其他jsp页面上，例如我们有：

On other jsp pages, e.g. we have:

<input type="text" name="id" maxlength="20" />
<input ... type="submit" name="submitId" value="Submit"/>

并且servlet具有：

and the servlet has:

if (request.getParameter("submitId") != null && request.getParameter("submitId").trim().length() > 0) { ... }

使用Fiddler和IE，我们可以看到两种情况都发送了以下内容：

Using Fiddler and IE, we can see that the following is sent for both cases:

id = 123456& submitId = Submit

id=123456&submitId=Submit

所以它在我们看来，这种行为仅在IE上展示，其中提交按钮未被称为提交？

So it seems to us that the behaviour is only exhibited on IE for forms where the "Submit" button is not called "Submit"?

重新运行Firefox 3.6上的测试显示行为是正确的，两种情况都是一样的。

Re-running the tests on Firefox 3.6 shows that the behaviour is correct and the same for both cases.

任何让IE正常工作的建议吗？

Any suggestions for getting IE to work correctly?

（注意：我搜索过类似的问题，但与此相关的问题主要与ASP有关！）。

(Note: I have searched SO for a similar problem but the questions relating to this mainly all ASP related!).

推荐答案

对于只有一个输入字段的表单，这确实是另一个IE异常。唯一可行的解​​决方法是添加第二个输入字段（！）。您可以使用CSS隐藏它。不， type =hidden无效。

This is indeed another IE anomaly in case of forms with only one input field. The only solid workaround for this is to add a second input field(!). You can hide it using CSS. No, type="hidden" ain't going to work.

<input type="text" name="id" maxlength="20" />
<input type="text" style="display: none;" />
<input type="submit" name="send" value="Send"/>

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