【整体介绍，建议先看完下面的内容在回过来看这个介绍】当用户输入账号密码后，点击“提交”按钮，则执行JSh中的getInfo()方法，该方法会调用Buffalo框架中的remoteCall("UserService.getInfo",[username,password],function(reply){})方法，"UserService.getInfo"：UserService是第六步文件中的，它指定了哪一个类，等价于com.cuc.service，getInfo是UserService指定类中的方法名；[username，password]：是需要传输的参数，使用[arg1，arg2，...]的方式组合；function(reply){}：是Buffalo框架的回调函数，即后台会返回一些数据，可以在该function中获取到。
1.下载Buffalo框架所需要的jsr包和JS文件
https://download.csdn.net/download/qq_34584694/10997810
2.创建一个J2EE的项目，最终目录结构如下
3.index.jsp页面代码：
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%String path = request.getContextPath();String basepath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<html><head><base href="<%=basepath %>" /><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Insert title here</title><script language="JavaScript" src="./scripts/prototype.js"></script><script language="JavaScript" src="./scripts/buffalo.js"></script><script type="text/javascript">var endPoint="<%=request.getContextPath()%>/buffalo";var buffalo = new Buffalo(endPoint);function getInfo(){var username = document.getElementById("username").value;var password = document.getElementById("password").value;buffalo.remoteCall("UserService.getInfo", [username,password], function(reply) {alert(reply.getResult());})}</script></head><body>账号：<input type="text" id="username" />密码：<input type="password" id="password" /><input type="button" value="提交" onclick="getInfo()" /></body>
</html>4.web.xml配置文件代码：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"><display-name>Buffalo框架的使用</display-name><servlet><servlet-name>buffalo</servlet-name><servlet-class>net.buffalo.web.servlet.ApplicationServlet</servlet-class></servlet><servlet-mapping><servlet-name>buffalo</servlet-name><url-pattern>/buffalo/*</url-pattern></servlet-mapping>
</web-app>5.User.java代码：
package com.cuc.service;public class User {public String getInfo(String username,String password){if(username.equals(password)){return "欢迎你，"+username;}return "账号或密码不对";}
}6.buffalo-service.properties文件代码：
####the first buffalo demo
UserService = com.cuc.service.User7.测试【这里只是一个简单的测试，当账号和密码输入一致时，登录成功，反之，账号和密码有误】
![洛谷 AT_abc178_b [ABC178B] Product Max](/images/no-images.jpg)
