jsp调用普通java类实例

1.jsp页面
  <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@page import="com.cgm.test.Test"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
   
    <title>My JSP 'test.jsp' starting page</title>
   
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">   
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->

  </head>
 
  <body>
      <%
      Test test=new Test();
     String aa= test.prints(pageContext);  //把jsp的out对象传到java里面。。。。。
       %>
      
        ${jinlian}
      
      
  </body>
</html>

2java类

package com.cgm.test;

import java.io.IOException;

import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.PageContext;

public class Test {


public String  prints(PageContext  pageContext) throws IOException{


System.out.println("XXXXXXX被调用了。。。。");

//能得到out对象啊  被封装得

pageContext.getOut().print("KKKKKKKKKKKKKKKKKKKKKkk");

pageContext.getRequest().setAttribute("jinlian","你好金莲");
return  "1234555555555555555";



}

}


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