JSP搜索表格

Question

我試圖通過表單實現一個搜索方法到JSP中，但我堅持發送文本從表單進一步提交action.I作出這樣的事情直到現在：

<form onsubmit="location.href='news.do?action=Search&search_string=${search}'" > 
Search: <input type="text" name="search"> 
</form> 

Answer 1

如果你想提交您的形式爲GET而不是POST，這個怎麼樣？

<form method = get action="news.do" > 
<input type="hidden" name="action" value = "Search"> 
Search: <input type="text" name="search_string"> 
</form> 

這將請求發送到news.do?action=Search & SEARCH_STRING = fsdfdsf

Answer 2

<% 
String query = (request.getParameter("query")!=null && request.getParameter("query").trim().length()>0)?request.getParameter("query").trim():""; 
if(action!=null && action.trim.equalsIgnoreCase("search")) 
{ 
//do the search 
} 
%> 
<form action="<%=application.getContextPath() + "/my.jsp"%>" method="post"> 
       <input type="hidden" name="action" value="search" /> 
       <input type="text" class="text" value="<%=(request.getParameter("query")!=null && request.getParameter("query").trim().length()>0)?request.getParameter("query").trim():"Search"%>" name="query" /> 
</form>