Authentication:身份认证 / 登录,验证用户是不是拥有相应的身份;
Authorization:授权,即权限验证,验证某个已认证的用户是否拥有某个权限;即判断用户是否能做事情,常见的如:验证某个用户是否拥有某个角色。或者细粒度的验证某个用户对某个资源是否具有某个权限;
Session Management:会话管理,即用户登录后就是一次会话,在没有退出之前,它的所有信息都在会话中;会话可以是普通 JavaSE 环境的,也可以是如 Web 环境的;
Cryptography:加密,保护数据的安全性,如密码加密存储到数据库,而不是明文存储;
Web Support:Web 支持,可以非常容易的集成到 Web 环境;
Caching:缓存,比如用户登录后,其用户信息、拥有的角色 / 权限不必每次去查,这样可以提高效率;
Concurrency:shiro 支持多线程应用的并发验证,即如在一个线程中开启另一个线程,能把权限自动传播过去;
Testing:提供测试支持;
Run As:允许一个用户假装为另一个用户(如果他们允许)的身份进行访问;
Remember Me:记住我,这个是非常常见的功能,即一次登录后,下次再来的话不用登录了。
可以看到:应用代码直接交互的对象是 Subject,也就是说 Shiro 的对外 API 核心就是 Subject;其每个 API 的含义:
Subject:主体,代表了当前 “用户”,这个用户不一定是一个具体的人,与当前应用交互的任何东西都是 Subject,如网络爬虫,机器人等;即一个抽象概念;所有 Subject 都绑定到 SecurityManager,与 Subject 的所有交互都会委托给 SecurityManager;可以把 Subject 认为是一个门面;SecurityManager 才是实际的执行者;
SecurityManager:安全管理器;即所有与安全有关的操作都会与 SecurityManager 交互;且它管理着所有 Subject;可以看出它是 Shiro 的核心,它负责与后边介绍的其他组件进行交互,如果学习过 SpringMVC,你可以把它看成 DispatcherServlet 前端控制器;
Realm:域,Shiro 从从 Realm 获取安全数据(如用户、角色、权限),就是说 SecurityManager 要验证用户身份,那么它需要从 Realm 获取相应的用户进行比较以确定用户身份是否合法;也需要从 Realm 得到用户相应的角色 / 权限进行验证用户是否能进行操作;可以把 Realm 看成 DataSource,即安全数据源。
也就是说对于我们而言,最简单的一个 Shiro 应用:
Subject:主体,可以看到主体可以是任何可以与应用交互的 “用户”;
SecurityManager:相当于 SpringMVC 中的 DispatcherServlet(前端控制器) 或者 Struts2 中的 FilterDispatcher;是 Shiro 的心脏;所有具体的交互都通过 SecurityManager 进行控制;它管理着所有 Subject、且负责进行认证和授权、及会话、缓存的管理。
Authenticator:认证器,负责主体认证的,这是一个扩展点,如果用户觉得 Shiro 默认的不好,可以自定义实现;其需要认证策略(Authentication Strategy),即什么情况下算用户认证通过了;
Authrizer:授权器,或者访问控制器,用来决定主体是否有权限进行相应的操作;即控制着用户能访问应用中的哪些功能;
Realm:可以有 1 个或多个 Realm,可以认为是安全实体数据源,即用于获取安全实体的;可以是 JDBC 实现,也可以是 LDAP 实现,或者内存实现等等;由用户提供;注意:Shiro 不知道你的用户 / 权限存储在哪及以何种格式存储;所以我们一般在应用中都需要实现自己的 Realm;
SessionManager:如果写过 Servlet 就应该知道 Session 的概念,Session 呢需要有人去管理它的生命周期,这个组件就是 SessionManager;而 Shiro 并不仅仅可以用在 Web 环境,也可以用在如普通的 JavaSE 环境、EJB 等环境;所以呢,Shiro 就抽象了一个自己的 Session 来管理主体与应用之间交互的数据;这样的话,比如我们在 Web 环境用,刚开始是一台 Web 服务器;接着又上了台 EJB 服务器;这时想把两台服务器的会话数据放到一个地方,这个时候就可以实现自己的分布式会话(如把数据放到 Memcached 服务器);
SessionDAO:DAO 大家都用过,数据访问对象,用于会话的 CRUD,比如我们想把 Session 保存到数据库,那么可以实现自己的 SessionDAO,通过如 JDBC 写到数据库;比如想把 Session 放到 Memcached 中,可以实现自己的 Memcached SessionDAO;另外 SessionDAO 中可以使用 Cache 进行缓存,以提高性能;
CacheManager:缓存控制器,来管理如用户、角色、权限等的缓存的;因为这些数据基本上很少去改变,放到缓存中后可以提高访问的性能
Cryptography:密码模块,Shiro 提供了一些常见的加密组件用于如密码加密 / 解密的。
导入依赖
<dependency>
<groupId>org.apache.shirogroupId>
<artifactId>shiro-coreartifactId>
<version>1.7.0version>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>jcl-over-slf4jartifactId>
<version>1.7.30version>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-log4j12artifactId>
<version>1.7.30version>
dependency>
<dependency>
<groupId>log4jgroupId>
<artifactId>log4jartifactId>
<version>1.2.17version>
dependency>
<dependency>
配置shiro的配置文件:shiro.ini
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
# =============================================================================
# Quickstart INI Realm configuration
#
# For those that might not understand the references in this file, the
# definitions are all based on the classic Mel Brooks' film "Spaceballs". ;)
# =============================================================================
# -----------------------------------------------------------------------------
# Users and their assigned roles
#
# Each line conforms to the format defined in the
# org.apache.shiro.realm.text.TextConfigurationRealm#setUserDefinitions JavaDoc
# -----------------------------------------------------------------------------
[users]
# user 'root' with password 'secret' and the 'admin' role
root = secret, admin
# user 'guest' with the password 'guest' and the 'guest' role
guest = guest, guest
# user 'presidentskroob' with password '12345' ("That's the same combination on
# my luggage!!!" ;)), and role 'president'
presidentskroob = 12345, president
# user 'darkhelmet' with password 'ludicrousspeed' and roles 'darklord' and 'schwartz'
darkhelmet = ludicrousspeed, darklord, schwartz
# user 'lonestarr' with password 'vespa' and roles 'goodguy' and 'schwartz'
lonestarr = vespa, goodguy, schwartz
# -----------------------------------------------------------------------------
# Roles with assigned permissions
#
# Each line conforms to the format defined in the
# org.apache.shiro.realm.text.TextConfigurationRealm#setRoleDefinitions JavaDoc
# -----------------------------------------------------------------------------
[roles]
# 'admin' role has all permissions, indicated by the wildcard '*'
admin = *
# The 'schwartz' role can do anything (*) with any lightsaber:
schwartz = lightsaber:*
# The 'goodguy' role is allowed to 'drive' (action) the winnebago (type) with
# license plate 'eagle5' (instance specific id)
goodguy = winnebago:drive:eagle5
Quickstart.java
/**
* Simple Quickstart application showing how to use Shiro's API.
*
* @since 0.9 RC2
*/
public class Quickstart {
private static final transient Logger log = LoggerFactory.getLogger(Quickstart.class);
public static void main(String[] args) {
DefaultSecurityManager defaultSecurityManager = new DefaultSecurityManager();
IniRealm iniRealm = new IniRealm("classpath:shiro.ini");
defaultSecurityManager.setRealm(iniRealm);
SecurityUtils.setSecurityManager(defaultSecurityManager);
// Now that a simple Shiro environment is set up, let's see what you can do:
// get the currently executing user:
//获取当前的用户对象Subject
Subject currentUser = SecurityUtils.getSubject();
// Do some stuff with a Session (no need for a web or EJB container!!!)
//通过当前用户拿到session
Session session = currentUser.getSession();
session.setAttribute("someKey", "aValue");
String value = (String) session.getAttribute("someKey");
if (value.equals("aValue")) {
log.info("Retrieved the correct value! [" + value + "]");
}
// let's login the current user so we can check against roles and permissions:
//判断当前的用户是否被认证
if (!currentUser.isAuthenticated()) {
//token : 令牌
UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
//记住我
token.setRememberMe(true);
try {
currentUser.login(token); //执行登录
//未知用户
} catch (UnknownAccountException uae) {
log.info("There is no user with username of " + token.getPrincipal());
//密码错误
} catch (IncorrectCredentialsException ice) {
log.info("Password for account " + token.getPrincipal() + " was incorrect!");
//账号被锁定
} catch (LockedAccountException lae) {
log.info("The account for username " + token.getPrincipal() + " is locked. " +
"Please contact your administrator to unlock it.");
}
// ... catch more exceptions here (maybe custom ones specific to your application?
catch (AuthenticationException ae) {
//unexpected condition? error?
}
}
//say who they are:
//print their identifying principal (in this case, a username):
log.info("User [" + currentUser.getPrincipal() + "] logged in successfully.");
//test a role:
if (currentUser.hasRole("schwartz")) {
log.info("May the Schwartz be with you!");
} else {
log.info("Hello, mere mortal.");
}
//test a typed permission (not instance-level)
//粗粒度
if (currentUser.isPermitted("lightsaber:wield")) {
log.info("You may use a lightsaber ring. Use it wisely.");
} else {
log.info("Sorry, lightsaber rings are for schwartz masters only.");
}
//a (very powerful) Instance Level permission:
//细粒度
if (currentUser.isPermitted("winnebago:drive:eagle5")) {
log.info("You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'. " +
"Here are the keys - have fun!");
} else {
log.info("Sorry, you aren't allowed to drive the 'eagle5' winnebago!");
}
//all done - log out!
currentUser.logout();
System.exit(0);
}
}
运行,没问题
1、导入包
<dependency>
<groupId>org.apache.shirogroupId>
<artifactId>shiro-springartifactId>
<version>1.7.0version>
dependency>
<dependency>
<groupId>com.github.theborakompanionigroupId>
<artifactId>thymeleaf-extras-shiroartifactId>
<version>2.0.0version>
dependency>
<dependency>
<groupId>org.thymeleafgroupId>
<artifactId>thymeleaf-spring5artifactId>
dependency>
<dependency>
<groupId>org.thymeleaf.extrasgroupId>
<artifactId>thymeleaf-extras-java8timeartifactId>
dependency>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
<version>1.18.16version>
dependency>
2、配置核心配置
ShiroConfig
package com.pwx.config;
import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import java.util.LinkedHashMap;
import java.util.Map;
/**
* @ Auction:pwx
* @ Date:2021/1/29 - 01 - 29 - 11:31
* @ Description:com.pwx.config
* @ version:1.0
*/
@Configuration
public class ShiroConfig {
//ShiroFilterFactoryBean:3
@Bean
public ShiroFilterFactoryBean shiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager securityManager){
ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
//设置安全管理器
bean.setSecurityManager(securityManager);
return bean;
}
//DefaultWebSecurityManager:2
@Bean(name = "securityManager")
public DefaultWebSecurityManager defaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){
DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
//关联userRealm
securityManager.setRealm(userRealm);
return securityManager;
}
//创建realm对象,需要自定义类:1
@Bean
public UserRealm userRealm(){
return new UserRealm();
}
}
UserRealm
@Configuration
public class UserRealm extends AuthorizingRealm {
@Autowired
UserService userService;
//授权
@Override
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
System.out.println("执行了授权doGetAuthorizationInfo");
return null;
}
//认证
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
System.out.println("执行了认证doGetAuthorizationInfo");
return null;
}
}
我们可以很明显看得出,这个配置相对于Security要复杂一点。都是固定的
然后我们增加一点前端的东西
MyController
@Controller
public class MyController {
@RequestMapping({"/","/index"})
public String toIndex(Model model){
model.addAttribute("msg","hello,world!");
return "index";
}
@RequestMapping("/user/add")
public String add(){
return "user/add";
}
@RequestMapping("/user/update")
public String update(){
return "user/update";
}
}
add.html
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Titletitle>
head>
<body>
<h1>添加h1>
body>
html>
update.html
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Titletitle>
head>
<body>
<h1>修改h1>
body>
html>
index.html
<html lang="en" xmlns:th="http://www.thymeleaf.org"
xmlns:shiro="http://www.thymeleaf.org/thymeleaf-extras-shiro" >
<head>
<meta charset="UTF-8">
<title>Titletitle>
head>
<body>
<h1>首页h1>
<div>
<a th:href="@{/user/add}">adda>
div>
<div>
<a th:href="@{/user/update}">updatea>
div>
body>
html>
简单的初始环境就搭好了,然后我们利用不同的权限对这两个页面进行访问
在shiroConfig的第三步进行补充
//ShiroFilterFactoryBean:3
@Bean
public ShiroFilterFactoryBean shiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager securityManager){
ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
//设置安全管理器
bean.setSecurityManager(securityManager);
//添加shiro的内置过滤器
/*
anon:无需认证就可以访问
authc:必须认证才能访问
user:必须拥有 记住我 功能才能用
perms:拥有对某个资源的权限才能访问;
role:拥有某个角色权限才能访问
*/
//添加内置过滤器
Map<String,String>filterMap = new LinkedHashMap<>();
//需要认证,没有设置登录页面会报404
filterMap.put("/user/add","authc");
filterMap.put("/user/update","authc");
//支持通配
filterMap.put("/user/*","authc");
bean.setFilterChainDefinitionMap(filterMap);
//设置登录的请求页面
bean.setLoginUrl("/toLogin");
return bean;
}
login.html
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>Titletitle>
head>
<body>
<h1>登录h1>
<form th:action="">
<p>用户名:<input type="text" name="username">p>
<p>密码:<input type="text" name="password"> p>
<p><input type="submit">p>
form>
body>
html>
MyController
@RequestMapping("/toLogin")
public String toLogin(){
return "login";
}
然后运行,我们可以看到,我们点击两个页面跳转的时候,都会被拦截,然后跳转到登录界面。这就证明拦截成功了
既然已经拦截成功了,那就证明前面的都没问题了,那就要进行用户的认证了
1、我们让他登陆后提交到login
<h1>登录h1>
<hr>
<p th:text="${msg}" style="color: red">p>
<form th:action="@{/login}">
<p>用户名:<input type="text" name="username">p>
<p>密码:<input type="text" name="password"> p>
<p><input type="submit">p>
form>
2、我们在Controller进行处理
@RequestMapping("/login")
public String login(String username , String password,Model model){
//获取当前的用户对象Subject
Subject currentUser = SecurityUtils.getSubject();
//token : 令牌
UsernamePasswordToken token = new UsernamePasswordToken(username, password);
//这里的几个异常都可以从Quickstart里面看的到
try {
currentUser.login(token); //执行登录
return "index";
} catch (UnknownAccountException uae) {
model.addAttribute("msg","用户名错误");
return "login";
} catch (IncorrectCredentialsException ice) {
model.addAttribute("msg","密码错误");
return "login";
}
}
3、如果这时候运行,我们会方向他会走到我们的认证,后台会输出执行了认证doGetAuthorizationInfo
,这是我们在UserRealm那里写的,所以这时候我们直接过去写我们的账号信息,去处理这个认证
//认证
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
System.out.println("执行了认证doGetAuthorizationInfo");
//数据要从数据库中拿,等下再整个MyBatis
String name = "root";
String password = "12345";
UsernamePasswordToken usernamePasswordToken = (UsernamePasswordToken) authenticationToken;
if(name.equal(usernamePasswordToken.getUsername())){ //如果没有这个人
return null; //抛出异常 UnknownAccountException
}
//密码认证,shiro做
return new SimpleAuthenticationInfo("",password,"");
}
1、导入包
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-jdbcartifactId>
dependency>
<dependency>
<groupId>log4jgroupId>
<artifactId>log4jartifactId>
<version>1.2.17version>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>druidartifactId>
<version>1.2.4version>
dependency>
<dependency>
<groupId>org.mybatis.spring.bootgroupId>
<artifactId>mybatis-spring-boot-starterartifactId>
<version>2.1.4version>
dependency>
2、配置文件:
application.yaml
spring:
datasource:
username: root
password: pwx12345
url: jdbc:mysql://localhost:3306/mybatis?serverTimezone=UTC
driver-class-name: com.mysql.cj.jdbc.Driver
type: com.alibaba.druid.pool.DruidDataSource
#Spring Boot 默认是不注入这些属性值的,需要自己绑定
#druid 数据源专有配置
initialSize: 5
minIdle: 5
maxActive: 20
maxWait: 60000
timeBetweenEvictionRunsMillis: 60000
minEvictableIdleTimeMillis: 300000
validationQuery: SELECT 1 FROM DUAL
testWhileIdle: true
testOnBorrow: false
testOnReturn: false
poolPreparedStatements: true
#配置监控统计拦截的filters,stat:监控统计、log4j:日志记录、wall:防御sql注入
#如果允许时报错 java.lang.ClassNotFoundException: org.apache.log4j.Priority
#则导入 log4j 依赖即可,Maven 地址:https://mvnrepository.com/artifact/log4j/log4j
filters: stat,wall,log4j
maxPoolPreparedStatementPerConnectionSize: 20
useGlobalDataSourceStat: true
connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
application.properties
mybatis.type-aliases-package=com.pwx.pojo
mybatis.mapper-locations=classpath:mapper/*.xml
3、连接数据库
4、创建pojo实体类
@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {
private int id; //序号
private String name; //账号
private String pwd; //密码
private String perms; //权限,用户授权要用
}
5、Mapper
@Repository
@Mapper
public interface UserMapper {
public User queryUserByName(String name);
}
6、UserMapper.xml
<mapper namespace="com.pwx.mapper.UserMapper">
<select id="queryUserByName" parameterType="String" resultType="User">
select * from mybatis.user where name = #{name}
select>
mapper>
7、service
UserService
public interface UserService {
public User queryUserByName(String name);
}
UserServiceImpl
@Service
public class UserServiceImpl implements UserService {
@Autowired
UserMapper userMapper;
@Override
public User queryUserByName(String name) {
return userMapper.queryUserByName(name);
}
}
8、写完可以测试一下,防止出错。然后我们回到认证那里
@Configuration
public class UserRealm extends AuthorizingRealm {
@Autowired
UserService userService;
//授权
@Override
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
System.out.println("执行了授权doGetAuthorizationInfo");
return null;
}
//认证
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
System.out.println("执行了认证doGetAuthorizationInfo");
UsernamePasswordToken usernamePasswordToken = (UsernamePasswordToken) authenticationToken;
//连接真实的数据库
User user = userService.queryUserByName(usernamePasswordToken.getUsername());
if(user==null){ //如果没有这个人
return null;
}
//密码认证,加密了
//可以加密: MD5 MD5盐值加密:MD5+username
return new SimpleAuthenticationInfo("",user.getPwd(),"");
}
}
1、小改一个地方测试一下
@Bean
public ShiroFilterFactoryBean shiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager securityManager){
ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
//设置安全管理器
bean.setSecurityManager(securityManager);
//添加shiro的内置过滤器
/*
anon:无需认证就可以访问
authc:必须认证才能访问
user:必须拥有 记住我 功能才能用
perms:拥有对某个资源的权限才能访问;
role:拥有某个角色权限才能访问
*/
//添加内置过滤器
Map<String,String>filterMap = new LinkedHashMap<>();
filterMap.put("/user/add","perms[user:add]");
filterMap.put("/user/update","authc");
bean.setFilterChainDefinitionMap(filterMap);
//设置登录的请求页面
bean.setLoginUrl("/toLogin");
return bean;
}
2、改了之后登录,是不是发现我们自己进不去add页面了,这就是要进行授权了,未授权会跳转401
3、先说说这个401,未授权页面是可以自己定制的
MyController
@RequestMapping("/noauth")
@ResponseBody
public String unauthorized(){
return "未授权";
}
在上面的代码加一句话
public ShiroFilterFactoryBean shiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager securityManager){
ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
//设置安全管理器
bean.setSecurityManager(securityManager);
//添加shiro的内置过滤器
/*
anon:无需认证就可以访问
authc:必须认证才能访问
user:必须拥有 记住我 功能才能用
perms:拥有对某个资源的权限才能访问;
role:拥有某个角色权限才能访问
*/
//添加内置过滤器
Map<String,String>filterMap = new LinkedHashMap<>();
filterMap.put("/user/add","perms[user:add]");
filterMap.put("/user/update","authc");
bean.setFilterChainDefinitionMap(filterMap);
//设置登录的请求页面
bean.setLoginUrl("/toLogin");
//自定义未授权页面
bean.setUnauthorizedUrl("/noauth");
return bean;
}
就是这样,定制的操作就好了,甚至还可以自己加一个页面是吧
4、然后我们可以看到在操作的时候,后台有一个执行了授权doGetAuthorizationInfo
,我们可以判定他走了授权的那个函数,那就下来我们就对那个函数进行操作
UserRealm
//授权
@Override
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
System.out.println("执行了授权doGetAuthorizationInfo");
SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
//只是给所有的都添加这个权限,一般一些公共的可以这么写
info.addStringPermission("user:add");
//拿到当前对象
Subject subject = SecurityUtils.getSubject();
User currentUser = (User) subject.getPrincipal();
//设置当前用户的权限
info.addStringPermission(currentUser.getPerms());
return info;
}
然后我们再回到我们的认证
//认证
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
System.out.println("执行了认证doGetAuthorizationInfo");
UsernamePasswordToken usernamePasswordToken = (UsernamePasswordToken) authenticationToken;
User user = userService.queryUserByName(usernamePasswordToken.getUsername());
if(user==null){ //如果没有这个人
return null;
}
Subject currentSubject = SecurityUtils.getSubject();
Session session = currentSubject.getSession();
session.setAttribute("loginUser",user);
//密码认证,加密了
//可以加密: MD5 MD5盐值加密:MD5+username
//这就实现了授权和认证的联动
return new SimpleAuthenticationInfo(user,user.getPwd(),"");
}
5、最后我们回到我们的前端,处理显示的问题
shiroConfig
//整合shiro
@Bean
public ShiroDialect getShiroDialect(){
return new ShiroDialect();
}
index.html
<html lang="en" xmlns:th="http://www.thymeleaf.org"
xmlns:shiro="http://www.thymeleaf.org/thymeleaf-extras-shiro" >
<head>
<meta charset="UTF-8">
<title>Titletitle>
head>
<body>
<h1>首页h1>
<div th:if="${session.loginUser==null}">
<a th:href="@{/toLogin}">登录a>
div>
<p th:text="${msg}">p>
<hr>
<div shiro:hasPermission="user:add" >
<a th:href="@{/user/add}">adda> |
div>
<div shiro:hasPermission="user:update" >
<a th:href="@{/user/update}">updatea>
div>
body>
html>