SpringBoot安全管理 ——模块4：Spring Boot 整合 Shiro

Spring Boot 整合 Shiro

Shiro简介

Apache Shiro 是一个开源的轻量级的 Java 安全框架，它提供身份验证，授权，密码管理以及会话管理等功能，相对于 Spring Security ，Shiro 框架更加直观，易用，同时也能提供健壮的安全性。
1.创建项目，添加如下依赖：

     <dependency><groupId>org.apache.shiro</groupId><artifactId>shiro-spring-boot-web-starter</artifactId><version>1.4.0</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency><dependency><groupId>com.github.theborakompanioni</groupId><artifactId>thymeleaf-extras-shiro</artifactId><version>2.0.0</version></dependency>

2.Shiro 基本配置，在application.properties中进行配置如下代码

#开启Shrio配置
shiro.enabled=true
#开启Shiro Web配置
shiro.web.enabled=true
#默认的登陆地址
shiro.loginUrl=/login
#登陆成功后的地址
shiro.successUrl=/index
#未授权默认跳转地址
shiro.unauthorizedUrl=/unauthorized
#是否允许通过URL参数实现会话跟踪，如果网站支持Cookie,可以关闭此选项
shiro.sessionManager.sessionIdUrlRewritingEnabled=true
#是否允许通过Cookie实现会话跟踪
shiro.sessionManager.sessionIdCookieEnabled=true

3.配置 Shiro

import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
import org.apache.shiro.realm.Realm;
import org.apache.shiro.realm.text.TextConfigurationRealm;
import org.apache.shiro.spring.web.config.DefaultShiroFilterChainDefinition;
import org.apache.shiro.spring.web.config.ShiroFilterChainDefinition;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;@Configuration
public class ShiroConfig {@Beanpublic Realm realm() {TextConfigurationRealm realm = new TextConfigurationRealm();realm.setUserDefinitions("sang=123,user\n admin=123,admin"); //这里配置了两个用户realm.setRoleDefinitions("admin=read,write\n user=read");   //admin具有读写权限，user具有读权限return realm;}@Beanpublic ShiroFilterChainDefinition shiroFilterChainDefinition() {DefaultShiroFilterChainDefinition chainDefinition = new DefaultShiroFilterChainDefinition();chainDefinition.addPathDefinition("/login","anon");     //匿名访问chainDefinition.addPathDefinition("/doLogin","anon");   //匿名访问chainDefinition.addPathDefinition("/logout","logout");  //注销登陆chainDefinition.addPathDefinition("/**","authc");       //其他请求需要认证return chainDefinition;}@Beanpublic ShiroDialect shiroDialect() {return new ShiroDialect();  //支持在 Themyleaf 中使用 Shiro 标签}
}

4.配置登陆接口以及页面访问接口

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.authz.annotation.Logical;
import org.apache.shiro.authz.annotation.RequiresRoles;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;@Controller
public class UserController {@PostMapping("/doLogin")public String doLogin(String username, String password, Model model) {UsernamePasswordToken token = new UsernamePasswordToken(username,password);Subject subject = SecurityUtils.getSubject();try {subject.login(token);} catch (AuthenticationException e) {model.addAttribute("error","用户名密码输入错误!");return "login";}return "redirect:/index";}@RequiresRoles("admin")@GetMapping("/admin")public String admin() {return "admin";}@RequiresRoles(value = {"admin","user"},logical = Logical.OR)@GetMapping("/user")public String user() {return "user";}
}

在doLogin方法中，首先创建一个 UsernamePasswordToken实例，然后获取一个Subject对象并调用该对象中的login方法执行登陆操作，在登陆操作执行过程中，当有异常出现时，说明登陆失败，并将错误信息返回给前端页面

对于其他不需要角色就能访问的接口，直接在WebMvc中配置就行，代码如下：

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;@Configuration
public class WebMvcConfig implements WebMvcConfigurer {@Overridepublic void addViewControllers(ViewControllerRegistry registry) {registry.addViewController("/login").setViewName("login");registry.addViewController("/index").setViewName("index");registry.addViewController("/unauthorized").setViewName("unauthorized");}
}

5.创建全局异常处理器进行全局异常处理

import org.apache.shiro.authz.AuthorizationException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.servlet.ModelAndView;@ControllerAdvice
public class ExceptionController {@ExceptionHandler(AuthorizationException.class)public ModelAndView error(AuthorizationException e) {ModelAndView mv = new ModelAndView("unauthorized");mv.addObject("error",e.getMessage());return mv;}
}

当用户访问未授权的资源时，自动跳转到 unauthorized 这个视图中，并把错误信息显示出来

配置完成后，最后在 resources/template 目录下创建HTML页面进行测试

（1）index.html 首页

<!DOCTYPE html>
<html lang="en" xmlns:shiro="http://www.pollix.at/thymeleaf/shiro">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body><h3>Hello, <shiro:principal/></h3><h3><a href="/logout">注销登录</a></h3><h3><a shiro:hasRole="admin" href="/admin">管理员页面</a></h3><h3><a shiro:hasAnyRoles="admin,user" href="/user">普通用户页面</a></h3>
</body>
</html>

(2) login.html 登陆页面

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body>
<div><form action="/doLogin" method="post"><input type="text" name="username"> <br><input type="password" name="password"> <br><div th:text="${error}"></div><input type="submit" value="登陆"></form>
</div>
</body>
</html>

(3) user.html 普通用户页面

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>普通用户页面</title>
</head>
<body>
<h1>普通用户页面</h1>
</body>
</html>

(4) admin.html 管理员页面

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>管理员页面</title>
</head>
<body>
<h1>管理员页面</h1>
</body>
</html>

(5) unauthorized.html 未授权页面

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body>
<h3>未获授权，非法访问</h3>
<h3 th:text="${error}"></h3>
</body>
</html>

6.进行测试

启动项目，访问登陆页面，分别使用 sang/123 和 admin/123 进行访问，结果如下图所示

sang 用户登陆后所展示的内容

————————————————————————————

admin 用户登陆后所展示的内容