一、jsp与java文件传递数据可以使用Servlet类来传递，jsp将数据存入到中，Servlet类获取这个，并将数据取出。
示例代码如下： JSP代码： <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> < html > < head > < title >Demo</ title > </ head > < body > < form action = "/demoServlet" method = "post" > < input type = "text" name = "name" /> < input type = "submit" value = "提交" /> </ form > </ body > </ html > |
Servlet代码：
public class DemoServlet extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String name = request.getParameter( "name" ); //获取jsp页面输入的参数 System.out.println(name); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } } |
表单提交之后，调用Servlet类的方法，通过获取jsp页面传入的参数值，实现数据的传递。
二、jsp接收servlet传过来的数据
=request.getAttribute("a")