SSM整合Shiro-登录案例
最近几天在学shiro,有一点小的进展，基本了解shiro的身份认证流程，写篇博客记录一下。
大体思路如下（个人总结，不足之处多多指教）：
login.jsp输入账号信息后跳转到需要验证的路径下，被指定拦截器拦截后，经过自定义realm验证。若验证成功，跳转到spring-shiro.xml中successUrl的路径下；若验证失败，跳转到spring-shiro.xml中loginUrl的路径下。
流程如下：
1.导入jar包
<!-- shiro的jar包 -->
<!-- https://mvnrepository.com/artifact/org.apache.shiro/shiro-all -->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-all</artifactId>
<version>1.3.2</version>
</dependency>
2.配置web.xml文件
<!-- Spring和mybatis、shiro的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/spring-*.xml</param-value>
</context-param>
<!-- 配置shiro -->
<filter>
<filter-name>shiroFilter</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
<init-param>
<!-- 表示bean的生命周期由servlet管理 -->
<param-name>targetFilterLifecycle</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>shiroFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
3.配置spring-shiro.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd">
<!-- 配置凭证匹配器 -->
<bean id="credentialsMatcher" class="org.apache.shiro.authc.credential.HashedCredentialsMatcher">
<!-- 散列算法 -->
<property name="hashAlgorithmName" value="md5"/>
<!-- 迭代次数 -->
<property name="hashIterations" value="2"/>
</bean>
<!-- 配置authc过滤器 -->
<bean id="authc" class="org.apache.shiro.web.filter.authc.FormAuthenticationFilter">
<!-- 修改登录参数 -->
<property name="usernameParam" value="username"/>
<property name="passwordParam" value="password"/>
</bean>
<!-- 自定义Realm -->
<bean id="userRealm" class="com.niqi.realm.UserRealm">
<property name="credentialsMatcher" ref="credentialsMatcher"/>
</bean>
<!-- 配置securityManager -->
<bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
<property name="realm" ref="userRealm"/>
</bean>
<!-- shiro过滤器 -->
<bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
<!--配置securityManager-->
<property name="securityManager" ref="securityManager"/>
<!-- 登录url,如果没有登录，跳到该url;默认为根目录下的login.jsp-->
<property name="loginUrl" value="/user/tologin"/>
<!-- 认证成功后跳转的url,默认认证成功后跳转上一个url-->
<property name="successUrl" value="/user/authentication" />
<!-- 用户没有权限访问资源时跳转的url -->
<property name="unauthorizedUrl" value="/refuse"/>
<!-- 配置shiro的过滤器链 -->
<property name="filterChainDefinitions" >
<value>
/user/login=anon
/user/tologin=authc
/user/logout=logout
/**=authc
</value>
</property>
</bean>
<!-- 配置logout过滤器 -->
<bean id="logout" class="org.apache.shiro.web.filter.authc.LogoutFilter">
<property name="redirectUrl" value="/login"/>
</bean>
</beans>
4.自定义Realm
package com.niqi.realm;
/**
* @program: shiro
* @description: 用户域
* @author: NiQi
* @create: 2019-09-03 09:23
**/
public class UserRealm extends AuthorizingRealm {
@Autowired
UserService userService;
@Override
public String getName(){
return "userRealm";
}
//授权
@Override
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
return null;
}
//验证
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
String username = token.getPrincipal().toString();
User user = userService.getUser(username);
if (user != null) {
String password = user.getPassword();
String salt = user.getPassword_salt();
return new SimpleAuthenticationInfo(user,password, ByteSource.Util.bytes(salt),getName());
} else {
return null;
}
}
}
6.Controller层
package com.niqi.controller;
/**
* @program: shiro
* @description: 用户控制层
* @author: NiQi
* @create: 2019-09-03 11:32
**/
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
UserService userService;
@RequestMapping("/login")
public String login(){
return "/login";
}
@RequestMapping("/tologin")
public String tologin(){
return "/login";
}
//身份验证
@RequestMapping("/authentication")
public ModelAndView authentication(HttpSession session){
ModelAndView mav = new ModelAndView("/index");
//创建subject
Subject subject = SecurityUtils.getSubject();
User user = (User)subject.getPrincipal();
mav.addObject("user",user);
return mav;
}
@RequestMapping("/logout")
public String logout(){
return "/login";
}
}
7.UserMapper.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.niqi.dao.UserMapper">
<!-- 获取用户 -->
<select id="getUser" resultType="com.niqi.pojo.User">
select * from users where username=#{username}
</select>
</mapper>
8.login.jsp
<%--
Created by IntelliJ IDEA.
User: niqi
Date: 2019/9/3
Time: 11:36
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" %>
<html>
<head>
<title>登录界面</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/user/tologin" method="post">
<table>
<tr>
<td>用户名</td>
<td>
<label><input name="username" type="text" ></label>
</td>
</tr>
<tr>
<td>密码</td>
<td>
<label><input type="password" name="password"></label>
</td>
</tr>
<tr>
<td colspan="2" align="center">
<label>
<input type="submit" value="登录">
<input type="reset" value="重置">
</label>
</td>
</tr>
</table>
</form>
</body>
</html>
代码下载
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