框架的东西太复杂也难以讲通，直接上代码：
一、首先得配置环境 和导入必要的jar包
有一些重要的如下：
Filter文件夹下的SafetyFilter.java
model文件夹下的 GlobalNames.java
web文件下的MySpringContext.java baseAction.java BusinessException.java
interceptor文件夹下的 AuthorizationInterceptor.java ExceptionIntercetor.java RequestParameter.java HttpUtil.java PropertiesUtil.java
以及src根目录文件下的以下文件
。。。
此外，webContent文件夹下的WEB-INF 里面的web.xml里面要部署拦截器和过滤器
首选写一个登录后进入的欢迎页面，首先是Home.jsp 然后是index.html
<display-name>工程名字</display-name>
<welcome-file-list>
<welcome-file>Home.jsp</welcome-file>
<welcome-file>index.html</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list><!-- ==================================================== --<!-- ================== 过滤器配置 ======================== -->
<!-- ==================================================== -->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 新增的文件滤波登录时除了/login.action,/pages/login.jsp两文件 其他的过滤掉-->
<filter>
<filter-name>SafetyFilter</filter-name>
<filter-class>******.filter.SafetyFilter</filter-class>
<init-param>
<description>不作判断的资源</description>
<param-name>excludeUrls</param-name>
<param-value>
/login.action,
/pages/login.jsp
</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>SafetyFilter</filter-name>
<url-pattern>*.jsp</url-pattern>
<url-pattern>*.action</url-pattern>
</filter-mapping>
除此外，还有自己要写的action,bpo,dto,mapper，common文件夹
二、先写一个登录页面login.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>登录页面</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<!--Basic Styles-->
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/lib/assets/css/bootstrap.min.css"/>
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/lib/assets/css/font-awesome.min.css"/>
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/lib/assets/css/ace.min.css"/>
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/lib/assets/css/ace-rtl.min.css"/>
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/lib/assets/css/ace-skins.min.css"/>
<script src="${pageContext.request.contextPath}/lib/assets/js/ace-extra.min.js" type="text/javascript" charset="utf-8"></script>
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/css/wpyd/login.css"/>
</head>
<body class="login-layout" onload="initLoginForm()">
<div class="main-container">
<div class="main-content">
<div class="row">
<div class="col-lg-11">
<div class="login-container">
<div class="position-relative">
<div id="login-box" class="login-box visible widget-box no-border">
<div class="widget-body">
<div id="widget-main" class="widget-main">
<div id="titlePanel" class="center">
<img id="aaaa" src="${pageContext.request.contextPath}/images/login/1234.png"/>
<div id="title">1234</div>
</div>
<form id="loginForm" action="${pageContext.request.contextPath }/login.action" method="post">
<fieldset>
<label class="block clearfix">
<span class="block input-icon input-icon-right">
<input type="text" class="form-control" tabindex="1" id="LoginName" name="loginUser.loginName" placeholder="用户名" required="required"/>
<i class="icon-user"></i>
</span>
</label>
<br />
<label class="block clearfix">
<span class="input-icon input-icon-right" style="width:100%;">
<input type="password" tabindex="3" id="PassWord" name="loginUser.PassWord" class="form-control" placeholder="密码" required="required"/>
<i class="icon-lock"></i>
</span>
</label>
<div class="error"><s:actionerror /></div>
<br />
<div class="clearfix">
<button type="button" type="submit" tabindex="4" onclick = "checkUser();" class="pull-right btn btn-sm btn-primary" style="width:100%;">
<i class="icon-key"></i>
登陆
</button>
</div>
<div class="space-4"></div>
</fieldset>
</form>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
<script>
var baseCtx = '${pageContext.request.contextPath}/';
</script>
<!--Basic scripts-->
<script src="${pageContext.request.contextPath}/lib/assets/js/jquery-2.0.3.min.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
if("ontouchend" in document) document.write("<script src='"+"${pageContext.request.contextPath}/"+"assets/js/jquery.mobile.custom.min.js'>"+"<"+"script>");
</script>
<script src="${pageContext.request.contextPath}/lib/assets/js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
<script src="${pageContext.request.contextPath}/lib/assets/js/typeahead-bs2.min.js" type="text/javascript" charset="utf-8"></script>
<script src="${pageContext.request.contextPath}/lib/assets/js/ace-elements.min.js" type="text/javascript" charset="utf-8"></script>
<script src="${pageContext.request.contextPath}/lib/assets/js/ace.min.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
$(function() {
$("#LoginName").focus();<!-- 登录时自动定位可以输入-->
});
function checkUser() {
var result = $.trim($("#LoginName").val());
var password = $.trim($("#PassWord").val());
if (result == "" || result == null) {
alert("用户名不能为空!");
return false;
}
if (password == "" || password == null) {
alert("请输入密码!");
return false;
}
$("#loginForm").submit();
}
//初始化登录输入
function initLoginForm(){
var usr = document.getElementById("LoginName").value;
var pwd = document.getElementById("PassWord").value;
if( usr && pwd){
$("#LoginName").val(""); <!-- 登录时清空用户名和密码-->
$("#PassWord").val("");<!-- 登录时清空用户名和密码-->
}
}
</script>
</html>
三、写一个登陆成功后返回的页面 Home.jsp
页面内容这里不关注 关注的是登陆成功后返回的用户信息
<!-- 其中sys_current_sessioninfo是一个全局变量保存了用户登录成功后的session信息（包括用户名，角色，ID等信息），后续我们要利用到这些信息来展示用户的主页面-->
<script type="text/javascript">
var contextPath = "${pageContext.request.contextPath}";
var Role = '${sessionScope.sys_current_sessioninfo.Role}';
var Name = '${sessionScope.sys_current_sessioninfo.Name}';
var Id = '${sessionScope.sys_current_sessioninfo.Id}';
</script>
四、写一个登陆的action请求Java文件
从这里需要先说明一下后续的各个文件的用途
loginAction.java:登录请求，接收到用户页面上输入的用户名和密码（loginName passWord）
LoginUserDTO.java：登陆的客户端用户对象，他也有两个属性 loginName passWord
Sysuser.java：登陆的服务端用户对象，由数据库匹配成功后返回的用户对象；他也有多个属性 ID, name, role, password, phone, age等
sessionInfo.java:登陆成功后保存的用户信息，在客户端用户访问期间一直有效，保存的属性也有多个ID, name, role, password, phone, age等
userSession.java: 主要是session的创建方法和获取session的方法
/**
* 取当前操作人员ID号
* @return
*/
public static String getCurrentUserid() {
SessionInfo sessionInfo = (SessionInfo) get(GlobalNames.CURRENT_SESSION_INFO);
if (sessionInfo != null)
return sessionInfo.getWpyId();
return null;
}
/**
* 取当前登录Session
*/
public static Map<String, Object> getSession() {
Map<String, Object> map = (Map<String, Object>) session.get();
return map;
}
userMapper.java：内容：public Sysuser selectByLoginName(String loginName);
//返回类型为Sysuser
//方法名：selectByLoginName
//功能：根据用户输入的登录名来查找是否存在该用户
usermapper.xml:主要是根据登陆时候提供的用户名进行数据库查询，并返回一个用户对象
<sql id="userColumns">
<!-- 用户字段属性名 -->
ID,
name,
age,
phone,
role,
password
</sql>
<select id="selectByLoginName" parameterType="string" resultType="*********.Sysuser">
SELECT
<include refid="userColumns" />
FROM table_name WHERE name=#{loginName}
</select>
loginAction.java的主要内容为：
private LoginUserDTO loginUser;
private String loginName;//前台页面的登录用户名
private String passWord;//前台页面的登录密码
@Resource
LogonBPO logonBPO;
//
@Action(value = "/login", results = {
@Result(location = "hi",type="redirectAction"),
@Result(name = "login", location = "/pages/login.jsp") })
public String login(){
Map<String, String> argsMap = new HashMap<String, String>();
if (loginUser == null){
loginUser = new LoginUserDTO();
}
try {
System.out.println("用户和密码验证开始！");
Sysuser sysuser = logonBPO.checkUser(loginUser.getLoginName(), loginUser.getPassWord());
System.out.println("用户为：\n"+sysuser.getWpy_name());
//将服务端返回的用户对象数据存入一个map(10个字段的数据)
argsMap.put("Id", sysuser.getId());
argsMap.put("name", sysuser.getName());
System.out.println("开始创建session：\n");
//将map数据存入用户session
logonBPO.createSessionInfo(argsMap);
}
catch (BusinessException e) {
addActionError(e.getMessage());
return LOGIN;
}
return SUCCESS;
}
/**
*
* 登陆成功后返回的页面是Home.jsp
* @return
*/
@Action(value = "/hi",results = { @Result(location = "/pages/Home.jsp") } )
public String loginDispatch() {
return SUCCESS;
}
/**
* 退出系统
*/
@Action(value="/logout", results = { @Result(location = "/pages/login.jsp") })
public String logout() {
SessionInfo sessionInfo = (SessionInfo) UserSession.get(GlobalNames.CURRENT_SESSION_INFO);
this.request.getSession().invalidate();
if (sessionInfo != null) {
sessionInfo.getId();
} else
{
logger.warn("logoff");
}
if (HttpUtil.isAjaxRequest(this.request)) {
return NONE;
} else {
return SUCCESS;
}
// return NONE;
}
LogonBPO.java 主要用于检查用户密码是否正确以及用户名是否存在，代码如下：
public Sysuser checkUser(String loginName, String passWord) {
//根据登陆的用户名和密码进行验证
//1.查询后台数据 返回类型为sysuser
Sysuser user = userMapper.selectByLoginName(loginName);
//2、判断用户状态
if (user == null) {
System.out.println("用户不存在：\n");
throw new BusinessException("该用户不存在!");
}
else
{
//3.判断密码
if (passWord == null) {
throw new BusinessException("密码为空!");
}
else
{
//4、验证密码是否正确
if (!passWord.equals(user.getPassword())){
throw new BusinessException("密码错误!");
}
else
{
System.out.println("密码匹配成功！\n");
}
}
}
return user; //返回用户
}
/**
* 建立用户会话信息，将action请求得到的用户信息保存在session中
*/
public void createSessionInfo(Map<String, String> argsMap) {
Map<String, Object> session = UserSession.getSession();
SessionInfo sessionInfo = new SessionInfo();
sessionInfo.setId(argsMap.get("Id"));
sessionInfo.setName(argsMap.get("name"));
//将session数据存入一个全局变量
session.put(GlobalNames.CURRENT_SESSION_INFO, sessionInfo);
}
}