url中文编码转换

<%@page import="java.net.URLEncoder,java.net.URLDecoder" %>

<%
 String str2=URLEncoder.encode("中文测试","UTF-8");
 request.setCharacterEncoding("utf-8"); //must setCharacterEncoding
 String str=null;
 if(request.getParameter("para")!=null)
 {
  str=request.getParameter("para");
  str=URLDecoder.decode(str,"UTF-8");
 } 

%>

<%=str%>

<a href="test.jsp?para=<%=str2%>">test</a>