Java开发 Shiro框架详解(轻松入门)
Shiro
Shiro简介
什么是Shiro?
- Apache Shiro是一个Java 的
安全(权限)框架
。 - Shiro可以非常容易的开发出足够好的应用,其不仅可以用在JavaSE环境,也可以用在JavaEE环境。
- Shiro可以完成,
认证
,授权
,加密
,会话管理
,Web集成
,缓存
等. - 官网: shiro.apache.org/
- 官方文档十分钟快速入门:shiro.apache.org/10-minute-t…
- 下载地址:github.com/apache/shir…
Shiro的三大功能
Shiro有三大核心组件,即Subject
、SecurityManager
和 Realm
-
Subject: 为
认证主体
。应用代码直接交互的对象是Subject,Subject代表了当前的用户。包含Principals
和Credentials
两个信息。 -
SecurityManager:为
安全管理员
。是Shiro架构的核心。与Subject的所有交互都会委托给SecurityManager, Subject相当于是一个门面,而SecurityManager才是真正的执行者。它负责与Shiro 的其他组件进行交互。 -
Realm:是
一个域
。充当了Shiro与应用安全数据间的“桥梁”。Shiro从Realm中获取安全数据(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中获取相应的用户进行比较,来确定用户的身份是否合法;也需要从Realm得到用户相应的角色、权限,进行验证用户的操作是否能过进行,可以把Realm看成DataSource,即安全数据源。
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,即判断用户能否进行什么操作,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 Manager
: 会话管理,即用户登录后就是第-次会话,在没有退出之前,它的所有信息都在会话中;会话可以是普通的JavaSE环境,也可以是Web环境;Cryptography
: 加密,保护数据的安全性,如密码加密存储到数据库中,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,能把权限自动的传播过去Testing
:提供测试支持;RunAs
: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
Shiro架构(外部)
从外部来看Shiro,即从应用程序角度来观察如何使用shiro完成工作: Subject 用户,SecurityManager管理所有用户 Realm连接数据
-
subject
: 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
, Subject代表了当前的用户,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,与Subject的所有交互都会委托给SecurityManager; Subject其实是一一个门面, SecurityManageer 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SercurityManager
交互, 并且它管理着所有的Subject,可以看出它是Shiro的核心,它负责与Shiro的其他组件进行交互,它相当于SpringMVC的DispatcherServlet的角色 -
Realm
: Shiro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,来确定用户的身份是否合法;也需要从Realm
得到用户相应的角色、权限,进行验证用户的操作是否能够进行,可以把Realm看DataSource;
Shiro架构(内部)
Subject
: 任何可以与应用交互的用户;Security Manager
:相当于SpringMVC中的DispatcherSerlet
; 是Shiro的心脏
, 所有具体的交互都通过Security Manager
进行控制,它管理者所有的Subject, 且负责进行认证,授权,会话,及缓存的管理。Authenticator
:负责Subject
认证, 是-一个扩展点,可以自定义实现;可以使用认证策略
(Authentication Strategy),即什么情况下算用户认证通过了;Authorizer
:授权器,即访问控制器,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 的那些功能;Realm
: 可以有-一个或者多个的realm, 可以认为是安全实体数据源,即用于获取安全实体的,可以用JDBC实现,也可以是内存实现等等,由用户提供;所以- -般在应用中都需要实现自己的realmSessionManager
:管理Session生 命周期的组件,而Shiro并不仅仅可以用在Web环境,也可以用在普通的JavaSE环境中CacheManager
: 缓存控制器,来管理如用户,角色,权限等缓存的;因为这些数据基本上很少改变,放到缓存中后可以提高访问的性能;Cryptography
:密码模块,Shiro 提高了一些常见的加密组件用于密码加密, 解密等
Shiro快速入门
准备工作
下载:GitHub资源
创建一个普通maven项目springboot-08-shiro,然后删除src目录和没用的文件
在springboot-08-shiro里新建springmvc项目 hello_shiro 找到文件pom.xml github.com/apache/shir…
在pom.xml中复制依赖
<dependencies>
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-core</artifactId>
</dependency>
<!-- configure logging -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-nop</artifactId>
</dependency>
</dependencies>
更改增加版本号:
<dependencies>
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-core</artifactId>
<version>1.7.1</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>1.7.30</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.30</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
</dependencies>
复制 github.com/apache/shir… log4j.properties
log4j.rootLogger=INFO, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m %n
# General Apache libraries
log4j.logger.org.apache=WARN
# Spring
log4j.logger.org.springframework=WARN
# Default Shiro logging
log4j.logger.org.apache.shiro=INFO
# Disable verbose logging
log4j.logger.org.apache.shiro.util.ThreadContext=WARN
log4j.logger.org.apache.shiro.cache.ehcache.EhCache=WARN
下载插件,下载完成后,重启IDEA
shiro.ini
[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
继续复制: github.com/apache/shir… Quickstart.java
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.*;
import org.apache.shiro.mgt.DefaultSecurityManager;
import org.apache.shiro.realm.text.IniRealm;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.Subject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class Quickstart {
//使用日志输出
private static final transient Logger log = LoggerFactory.getLogger(Quickstart.class);
public static void main(String[] args) {
DefaultSecurityManager securityManager = new DefaultSecurityManager();
IniRealm iniRealm = new IniRealm("classpath:shiro.ini");
securityManager.setRealm(iniRealm);
SecurityUtils.setSecurityManager(securityManager);
// Now that a simple Shiro environment is set up, let's see what you can do:
//现在设置了一个简单的Shiro环境,让我们看看您可以做什么:
// get the currently executing user:
//获取当前正在执行的用户:getSubject
Subject currentUser = SecurityUtils.getSubject();
// 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("Securit=>Session! [" + value + "]");
}
// 这段if 就是判断当前的用户是否被认证
if (!currentUser.isAuthenticated()) {
//如果认证成功,就拿到账号密码生成一个Token令牌,没有获取,随机生成
UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
//设置记住我
token.setRememberMe(true);
try {
//执行了登录操作!
currentUser.login(token);
} catch (UnknownAccountException uae) { //未知的账户
log.info("There is no user with username of " + token.getPrincipal());
} catch (IncorrectCredentialsException ice) {//密码不正常,然后输出
log.info("Password for account " + token.getPrincipal() + " was incorrect!");
} catch (LockedAccountException lae) {//用户被锁定,比如说输入5次失败,锁定账户
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?
}
}
//获取当前用户的验证码
log.info("User [" + currentUser.getPrincipal() + "] logged in successfully.");
//测试角色,比如之前的vip1,vip2
if (currentUser.hasRole("schwartz")) {
log.info("May the Schwartz be with you!");
} else {
log.info("Hello, mere mortal.");
}
//检查是否有什么权限,粗粒度!
if (currentUser.isPermitted("lightsaber:wield")) {
log.info("You may use a lightsaber ring. Use it wisely.");
} else {
//如果全选不满足就输出
log.info("Sorry, lightsaber rings are for schwartz masters only.");
}
//是否拥有更高级权限,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!");
}
//注销
currentUser.logout();
//结束系统
System.exit(0);
}
}
启动测试
SpringBoot整合Shiro环境搭建
1.新建springboot项目
新建SpringBoot项目 shiro-springboot ,勾选web和thymeleaf和
2.在Templates下新建index.html
<!DOCTYPE html>
<html lang="en" xmlns:th="https://www.thymeleaf.org"
xmlns:shiro="https://www.thymeleaf.org/thymeleaf-extras-shiro">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h1>首页</h1>
<p th:text="${msg}"></p>
</body>
</html>
3.controller包下新建MyController.java
@Controller
public class MyController {
@RequestMapping({"/","/index"})
public String index(Model model){
model.addAttribute("msg", "hello,Shiro");
return "index";
}
}
启动测试:
4.三大功能,基础理解
Subject:用户 SecurityManager:管理所有用户 Realm:连接数据
5.导入jar包
<!--shiro-->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-spring</artifactId>
<version>1.4.1</version>
</dependency>
6.编写ShiroConfig、UserRealm
public class UserRealm extends AuthorizingRealm {
//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doGetAuthenticationInfo");
return null;
}
}
@Controller
public class ShiroConfig {
//三大核心要素:
//ShiroFilterFactoryBean
//第三步:
public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager){
ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
//设置安全管理器
bean.setSecurityManager(defaultWebSecurityManager);
return bean;
}
//DafaultWebSecurityManager
//第二步:
@Bean(name="securityManager")
public DefaultWebSecurityManager getDefaultWebSecurityManager(@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
//第一步:
@Bean
public UserRealm userRealm(){
return new UserRealm();
}
}
7.编写html页面
在templates目录下创建user目录编写html页面,add.html,update.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>add</title>
</head>
<body>
<h1>add</h1>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>update</title>
</head>
<body>
<h1>update</h1>
</body>
</html>
8.修改MyController,增加响应请求
@Controller
public class MyController {
@RequestMapping({"/","/index"})
public String index(Model model){
model.addAttribute("msg", "hello,Shiro");
return "index";
}
@RequestMapping("/user/add")
public String add( ){
return "user/add";
}
@RequestMapping("/user/update")
public String update( ){
return "user/update";
}
}
9.修改index首页
<!DOCTYPE html>
<html lang="en" xmlns:th="https://www.thymeleaf.org"
xmlns:shiro="https://www.thymeleaf.org/thymeleaf-extras-shiro">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h1>首页</h1>
<p th:text="${msg}"></p>
<br/><hr>
<a th:href="@{/user/add}">add</a>
<a th:href="@{/user/update}">update</a>
</body>
</html>
10.最后测试
shiro实现登录拦截
1.编写一个login登录页面
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>登录</title>
</head>
<body>
<h1 align="center">登录</h1>
<hr>
<form action="">
<p align="center">用户名:<input type="text" name="username"></p>
<p align="center">密 码:<input type="text" name="password"></p>
<p align="center"><input type="submit"></p>
</form>
</body>
</html>
2.在MyController 增加跳转
@RequestMapping("/toLogin")
public String toLogin(){
return "login";
}
3.添加shiro的内置过滤器
anon:无需认证就可以访问 authc:必须认证了才能让问 user:必须拥有,记住我功能,才能访问 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
@Controller
public class ShiroConfig {
//三大核心要素:
//ShiroFilterFactoryBean
//第三步:
@Bean
public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager){
ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
//设置安全管理器
bean.setSecurityManager(defaultWebSecurityManager);
//添加Shiro的内置过滤器
/*anon:无需认证就可以访问
authc:必须认证了才能让问
user:必须拥有,记住我功能,才能访问
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*/
//设置登录权限,登录拦截
Map<String, String> filterMap = new LinkedHashMap<>();
//filterMap.put("/user/add", "authc");
//filterMap.put("/user/update", "authc");
filterMap.put("/user/*", "authc");
bean.setFilterChainDefinitionMap(filterMap);
//设置登录的请求
bean.setLoginUrl("/toLogin");
return bean;
}
//DafaultWebSecurityManager
//创建realm对象,需要自定义类
.......
4.启动测试:
可以发现被拦截了!
shiro实现用户认证
1.编写认证
@RequestMapping("/login")
public String login(String username,String password,Model model){
//获取当前的用户
Subject subject = SecurityUtils.getSubject();
//封装用户的登录数据
//封装成Token令牌
UsernamePasswordToken token = new UsernamePasswordToken(username, password);
try {
//验证登录,如果没有异常就说明成功了
subject.login(token);
return "index";
}catch (UnknownAccountException e){//用户名不存在
model.addAttribute("msg", "用户名错误");
return "login";
}catch (IncorrectCredentialsException e){
model.addAttribute("msg", "密码错误");
return "login";
}
}
2.给login增加跳转和错误提示
<p align="center" th:text="${msg}" style="color: red"></p>
<form th:action="@{/login}">
<p align="center">用户名:<input type="text" name="username"></p>
<p align="center">密 码:<input type="text" name="password"></p>
<p align="center"><input type="submit"></p>
</form>
3.判断认证
//认证
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
System.out.println("执行了=》认证doGetAuthenticationInfo");
//用户名 ,密码 数据中取
String name="qingfeng";
String password="123456";
//创建令牌
UsernamePasswordToken usertoken = (UsernamePasswordToken) token;
//判断传入的数据
if (!usertoken.getUsername().equals(name)){
return null;//抛出异常 UnknownAccountException
}
//密码认证,shiro做
return new SimpleAuthenticationInfo("",password,"");
}
4.测试:
密码错误 用户名错误
登录成功
shiro整合mybatis
1.导入SQL jar包
<!--MySQL-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.22</version>
</dependency>
<!--log4j-->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!--druid-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.2.5</version>
</dependency>
<!--mybatis-->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.4</version>
</dependency>
2.编写application.yml
spring:
datasource:
username: root
password: root
url: jdbc:mysql://localhost:3306/mybatis?useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&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
mybatis:
type-aliases-package: com.cy.pojo
mapper-locations: classpath:mapper/*.xml
3.编写实体类User、
@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {
private int id;
private String name;
private String pwd;
private String perms;
}
4.编写接口UserMapper
@RequestMapping
@Mapper//这个注解表示了这是一个mybatis的mapper类
public interface UserMapper {
User queryUserByName(String name);
}
5.创建UserMapper.xml
resource包下新建mapper目录UserMapper.xml
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.cy.mapper.UserMapper">
<select id="queryUserList" resultType="User">
select * from user;
</select>
<select id="queryUserByName" resultType="User" parameterType="String">
select * from user where name=#{name}
</select>
</mapper>
6.service层
UserService接口
package com.cy.service;
import com.cy.pojo.User;
public interface UserService {
public User queryUserByName(String name);
}
UserServiceImpl
package com.cy.service;
import com.cy.mapper.UserMapper;
import com.cy.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
@Service
public class UserServiceImpl implements UserService{
@Autowired
UserMapper userMapper;
@Override
public User queryUserByName(String name) {
return userMapper.queryUserByName(name);
}
}
7.测试
ShiroSpringbootApplicationTests中进行测试
@SpringBootTest
class ShiroSpringbootApplicationTests {
@Autowired
UserServiceImpl userService;
@Test
void contextLoads() {
System.out.println(userService.queryUserByName("清风"));
}
}
8.修改之前的用户认证
连接真实的数据库,实现用户认证
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 token) throws AuthenticationException {
System.out.println("执行了=》认证doGetAuthenticationInfo");
//创建令牌
UsernamePasswordToken usertoken = (UsernamePasswordToken) token;
//连接真实的数据库
User user = userService.queryUserByName(usertoken.getUsername());
if(user==null){//没有找到这个账号
return null;
}
//可以使用加密 MD5,MD5颜值加密
//密码认证,shiro做
return new SimpleAuthenticationInfo("",user.getPwd(),"");
}
}
Shiro请求授权实现
1.在ShiroConfig中设置授权
//设置登录权限,登录拦截
Map<String, String> filterMap = new LinkedHashMap<>();
//授权,正常的情况下,没有授权会跳转到未授权页面
filterMap.put("/user/add", "perms[user:add]");
filterMap.put("/user/update", "perms[user:update]");
filterMap.put("/user/*", "authc");
bean.setFilterChainDefinitionMap(filterMap);
//设置登录的请求
bean.setLoginUrl("/toLogin");
//未授权页面
bean.setUnauthorizedUrl("/noauth");
return bean;
2.设置一个拦截页面
@ResponseBody
@RequestMapping("/noauth")
public String unauthorized(){
return "未经授权无法访问此页面";
}
3.启动测试
4.给用户授权
UserRealm.java
//授权
@Override
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
System.out.println("执行了=》授权doGetAuthorizationInfo");
//注意区分:SimpleAuthenticationInfo和SimpleAuthorizationInfo
SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
// info.addStringPermission("user:add");
//拿到当前登录的这个对象
Subject subject = SecurityUtils.getSubject();
//强制转换为User
User currentUser = (User) subject.getPrincipal();//拿到User对象
//设置当前用户的权限
info.addStringPermission(currentUser.getPerms());
return info;
}
测试:我们可以发现,授权成功了
但是我们发现了一个问题,数据库中的所有用户都可以自由访问,所以我们应该给数据库指定权限
5.数据库user表增加一个字段
绑定权限
Shiro整合Thymeleaf
1.导入jar包
<dependency>
<groupId>com.github.theborakompanioni</groupId>
<artifactId>thymeleaf-extras-shiro</artifactId>
<version>2.0.0</version>
</dependency>
- 代码整理 结构目录:
2.配置config
ShiroConfig
//整合shiroDialect:用来整合shiro thymeleaf
@Bean
public ShiroDialect getShiroDialect(){
return new ShiroDialect();
}
3.修改index.html
<!DOCTYPE html>
<html lang="en" xmlns:th="https://www.thymeleaf.org"
xmlns:shiro="https://www.thymeleaf.org/thymeleaf-extras-shiro">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h1 align="center">首页</h1>
<div align="center" th:if="${session.loginUser==null}">
<a th:href="@{/toLogin}">登录</a>
</div>
<p align="center" th:text="${msg}"></p>
<br/><hr>
<div align="center" Shiro:hasPermission="user:add">
<a th:href="@{/user/add}">add</a>
</div>
<div align="center" Shiro:hasPermission="user:update">
<a th:href="@{/user/update}">update</a>
</div>
</body>
</html>
//认证
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
System.out.println("执行了=》认证doGetAuthenticationInfo");
//创建令牌
//用户名,密码,数据库中获取
UsernamePasswordToken usertoken = (UsernamePasswordToken) token;
//连接真实的数据库
User user = userService.queryUserByName(usertoken.getUsername());//获取用户名
if(user==null){//没有找到这个账号
return null;
}
Subject currentSubject = SecurityUtils.getSubject();
Session session = currentSubject.getSession();
session.setAttribute("loginUser", user);
//密码认证,shiro做
return new SimpleAuthenticationInfo("",user.getPwd(),"");
链接:https://juejin.cn/post/6991664333314850853
来源:稀土掘金
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