在jsp中添加请求参数

<form action="yourAction.jsp" method="post">
  <input type="text" name="param1" />
  <input type="submit" value="Submit" />
</form>

<%
  String param1 = "value1";
  String url = request.getRequestURL() + "?param1=" + param1;
%>
<a href="<%= url %>">Link</a>

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<c:url var="url" value="yourAction.jsp">
  <c:param name="param1" value="value1" />
</c:url>
<a href="${url}">Link</a>