提交表单时，特殊字符变为符号[重复](A special character turns into symbol when form is submitted [duplicate])

提交表单时，特殊字符变为符号[重复](A special character turns into symbol when form is submitted [duplicate])

这个问题在这里已有答案：

如何将Unicode字符作为JSP / Servlet request.getParameter传递？ 4个答案

我有一个页面，其中一个表单，用户必须填写输入，他们的登录自动填入隐藏的输入，我有一个用户登录具有特殊字符（在我的情况下，字符是é ）。 提交表单时，特殊字符变为符号é 。 这是我有的：

形成

<input type="hidden" name="Employe" value="<%= employe %>">

当我检查元素时，我可以看到值是rémax

而当我这样做

String employe = request.getParameter("Employe"); System.out.println(employe);

输出是rémax

这似乎不是charset的问题，因为我可以在两个视图中显示特殊字符。 为什么特殊字符未按预期显示？

This question already has an answer here:

How to pass Unicode characters as JSP/Servlet request.getParameter? 4 answers

I have a page with a form where user have to fill inputs, their login are filled automatically in hidden input, and I have a user with a login with a special character (in my case the character is é). And when the form is submitted the special character turns into the symbol é. Here is what I have :

FORM

<input type="hidden" name="Employe" value="<%= employe %>">

when I inspect the element I can see that the value is rémax

And when I do this

String employe = request.getParameter("Employe"); System.out.println(employe);

The output is rémax

This not seems to be an issue with charset because I can display special characters in both views. Why the special character is not displayed as expected ?

最满意答案

尝试将<?xml version="1.0" encoding="UTF-8"?>到页面的开头。

如果这不起作用，您可以尝试以下方法：

这是一个GET请求，服务器未配置为使用UTF-8来解析请求URI。 如果您使用的是Tomcat，请将/conf/server.xml HTTP Connector的URIEncoding属性设置为UTF-8 。 如果是POST请求，则需要确保servletcontainer使用UTF-8对请求主体进行编码。 你可以事先通过request.setCharacterEncoding("UTF-8")来做到这一点。

Try adding <?xml version="1.0" encoding="UTF-8"?> to the very start of the page.

If that doesn't work you might try the following:

It's a GET request and the server isn't configured to use UTF-8 to parse request URI. If you are using Tomcat then set URIEncoding attribute of the HTTP Connector in /conf/server.xml to UTF-8. If it's a POST request, then you need to ensure that the servletcontainer uses UTF-8 to encode the request body. You can do that by request.setCharacterEncoding("UTF-8") beforehand.