instanceconcurrenttest1.jsp

来自「J2EE独立开发制作」· JSP 代码 · 共 26 行

<%@ page contentType="text/html;charset=GBK" %>
<% 
    //使用局部变量
    String username;
    String password;
    java.io.PrintWriter output;
    //从request中获取参数
    username = request.getParameter("username");
    password = request.getParameter("password");
    output = response.getWriter();
    showUserInfo(output, username, password);
%>
<%! 
    public void showUserInfo(java.io.PrintWriter _output,
     String _username, String _password) {
    //为了突出并发问题，在这儿首先执行一个费时操作
      int i =0; 
      double sum = 0.0; 
      while (i++ < 200000000) { 
        sum += i;  
      }    
      _output.println(Thread.currentThread().getName() + "<br>");
      _output.println("username:" + _username + "<br>");
      _output.println("password:" + _password + "<br>");
      }
%>