如何在jsp不重复的情况下保留表单子文件的textarea内容？ [英] How to keeping textarea content after a form submition with jsp not duplicate?

问题描述

我希望在表单提交后将textarea内容保存在其提交的文件中...我使用jsp工作我尝试这样做这里解决相同的问题，但它不适用于我
我的代码：

 < form class =contact-formid =preview-formaction =textAreaDatamethod =post > 
< textarea id =preview-form-commentname =preview-form-comment> $ {fn：escapeXml（param.preview-form-comment）}< / textarea> 
< input type =submitname =preview-form = submitid =preview-form-submitvalue =Submit> 
< / form> 
  

这就是结果：
显示数字0，当我提交输入时，它在表单提交后从其提交的文件中消失

有什么错？可以帮忙吗？

解决方案

好吧，简单的方法：

你的servlet定义了：

  String comment = request.getParameter（preview-form-comment）; 
 
 request.setAttribute（anydata，comment）; 
  

并在您的textarea中写入：

 < textarea id =preview-form-commentname =preview-form-comment> $ {anydata}< / textarea> 
  

运行:)祝你好运

I want to keep the textarea content in its filed after a form submition ... I work with jsp I try to do like this here solve to same problem but it not work with me my code :

 <form class="contact-form" id="preview-form"   action="textAreaData"  method="post">
 <textarea id="preview-form-comment" name="preview-form-comment">${fn:escapeXml(param.preview-form-comment)}</textarea>
 <input type="submit" name="preview-form=submit" id="preview-form-submit" value="Submit"  >
 </form>

and this is the result : display number 0 and when I submit the input it Disappears from its filed after a form submition

what wrong ? can help ?

解决方案

ok , the easy way :

in your servlet define :

String comment = request.getParameter("preview-form-comment") ;

request.setAttribute("anydata", comment);

and in your textarea write :

 <textarea id="preview-form-comment" name="preview-form-comment">${anydata}</textarea>

it run :) good luck

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