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，我们可以看到在填充 id 时发送了以下内容文本框并按 Enter:

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

id=123456

但是，使用 Fiddler 和 IE，我们可以看到，当我们填充 id 文本框并单击发送"按钮时，会发送以下内容:

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

最终结果是有效地按下 Enter 键什么也没做.

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=提交

id=123456&submitId=Submit

所以在我们看来，该行为仅在 IE 上显示提交"按钮未称为提交"的表单?

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

在 Firefox 3.6 上重新运行测试表明行为是正确的，并且在两种情况下都相同.

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

对于让 IE 正常工作有什么建议吗?

Any suggestions for getting IE to work correctly?

(注意:我已经搜索过类似的问题，但与此相关的问题主要与 ASP 相关！).

(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，这确实是另一种 IE 异常.唯一可靠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" 不会工作.

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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