springboot_shiro

1、Shiro简介

1.1、什么是shiro?


1.2、shiro功能?

image

  • 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,验证某个已认证用户是否拥有某个权限,即判断用户是否进行什么操作,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 Management: 会话管理,即用户登录就是第一次会话,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环境中;
  • 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
  • Run As: 允许一个用户假装另一个用户的身份去访问
  • Remember Me: 记住我,这是非常常见的功能,即一次登录后,下次再来的话就不用登录

2、Shiro简单使用


1.导入依赖
2.配置文件
3.HelloWorld

SpringSecurity~都有

Subject currentUser = SecurityUtils.getSubject();
Session session = currentUser.getSession();
currentUser.isAuthenticated()
currentUser.getPrincipal()
currentUser.hasRole("schwartz")
currentUser.isPermitted("lightsaber:wield")
currentUser.logout();

3、Springboot-Shiro整合

  • 依赖
<dependency>
    <groupId>org.apache.shiro</groupId>
    <artifactId>shiro-spring</artifactId>
    <version>1.7.1</version>
</dependency>
  • 自定义Realm类
//自定义的UserRealm
public class UserRealm extends AuthorizingRealm {
    //授权
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        System.out.println("授权:doGetAuthorizationInfo");
        return null;
    }

    //认证
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        System.out.println("认证:doGetAuthenticationInfo");
        return null;
    }
}
  • 创建config(自定义ShiroConfig)
import java.util.LinkedHashMap;

@Configuration
public class ShiroConfig {

    //第三步:ShiroFilterFactoryBean
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("getDefaultWebSecurityManager") DefaultWebSecurityManager defaultWebSecurityManager) {
        ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
        //关联 DefaultWebSecurityManager,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:必须认证了才能访问
         * user:必须拥有“记住我”功能才能使用
         * 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
         * */
        
        return bean;
    }

    //第二步:DefaultWebSecurityManager
    @Bean
    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm) {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //关联realm
        securityManager.setRealm(userRealm);
        return securityManager;
    }

    //第一步:创建realm对象
    @Bean
    public UserRealm userRealm() {
        return new UserRealm();
    }
}

4、Springboot-Shiro进行拦截

在自定义ShiroConfig中:

//第三步:ShiroFilterFactoryBean
@Bean
public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("getDefaultWebSecurityManager") DefaultWebSecurityManager defaultWebSecurityManager){
    ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
    //关联 DefaultWebSecurityManager,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:必须认证了才能访问
     * user:必须拥有“记住我”功能才能使用
     * 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
     * */
//        Map<String,String> filterMap = new HashMap<>();
//        filterMap.put("/user/add","authc");
//        filterMap.put("/user/update","authc");
    //通配符拦截
    Map<String,String> filterMap = new HashMap<>();
    filterMap.put("/user/*","authc");
    bean.setFilterChainDefinitionMap(filterMap);

    //设置登录的请求
    bean.setLoginUrl("/toLogin");
    return bean;
}

自定义MyController的页面跳转

@Controller
public class MyController {

    @RequestMapping({"/","/index","/index.html"})
    public String toIndex(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";
    }

    @RequestMapping("/toLogin")
    public String toLogin(){
        return "login";
    }
}

静态资源目录:
image

3、Springboot-Shiro用户认证

  • 编写一个简单的登录页面
<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="password" name="password"/></p>
    <button type="submit">登录</button>
</form>
  • MyController中进行逻辑
@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
    UsernamePasswordToken token = new UsernamePasswordToken(username, password);
    try{
        //登录成功
        subject.login(token);   //执行登录的方法
        return "index";
    }catch (UnknownAccountException e){
        model.addAttribute("msg","用户名错误");
        return "login";
    }catch (IncorrectCredentialsException e){
        model.addAttribute("msg","密码错误");
        return "login";
    }
}
  • 在自定义的UserRealm进行用户名和密码的匹配验证
//认证
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
    System.out.println("认证:doGetAuthenticationInfo");

    //用户名,密码,数据库中取
    String name = "root";
    String password = "123456";

    UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken;
    if (!userToken.getUsername().equals(name)){
        return null;    //抛出异常  UnknownAccountException
    }
    //密码认证
    return new SimpleAuthenticationInfo("",password,"");
}

image
image

3、Springboot-Shiro整合Mybatis

  • 导入相关依赖
<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
</dependency>
<dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis</artifactId>
    <version>3.5.4</version>
</dependency>
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>1.2.17</version>
</dependency>
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.2.6</version>
</dependency>
  • pojo层
    image
@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {
    private int id;
    private String userName;
    private String passWord;
    private String realName;
}
  • yaml配置文件
spring:
  datasource:
    username: root
    password: 123456
    #    url: jdbc:mysql://localhost:3306/springboot_mybatis?serverTimezone=GMT&useUnicode=true&characterEncoding=utf8&useSSL=false
    #    失去问题
    url: jdbc:mysql://localhost:3306/springboot_mybatis?serverTimezone=GMT
    driver-class-name: com.mysql.cj.jdbc.Driver
    type: com.alibaba.druid.pool.DruidDataSource

    #springboot 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

    #配置监控统计拦截器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
    filters: stat,wall,log4j
    maxPoolPreparedStatementPerConnectionSize: 20
    userGlobalDataSourceStat: true
    connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
  • UserMapper接口
@Mapper
@Repository
public interface UserMapper {

    public User queryUserByName(String name);
}
  • service层

    • UserService接口
    public interface UserService {
        public User queryUserByName(String name);
    }
    
    • UserService接口实现
    @Service
    public class UserServiceImpl implements UserService{
    
        @Autowired
        UserMapper userMapper;
    
        @Override
        public User queryUserByName(String name) {
            return userMapper.queryUserByName(name);
        }
    }
    
  • UserMapper.xml
    image

<?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="edu.dj.mapper.UserMapper">
	<select id="queryUserByName" parameterType="String" resultType="User">
		select * from springboot_mybatis.user where userName = #{name}
	</select>
</mapper>
  • application.properties配置文件绑定
# 绑定数据
mybatis.type-aliases-package=edu.dj.pojo
mybatis.mapper-locations=classpath:mapper/*.xml
  • UserRealm中数据认证
    image
//认证
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
    System.out.println("认证:doGetAuthenticationInfo");

    //用户名,密码,数据库中取
    //String name = "root";
    //String password = "123456";

    UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken;
    //连接真实数据库
    User user = userService.queryUserByName(userToken.getUsername());

    if (user == null){  //没有这个人
        return null;       //UnknownAccountException
    }

    //密码认证,shiro做
    return new SimpleAuthenticationInfo("",user.getPassWord(),"");
}

5、Springboot-Shiro进行授权

  • 添加认证
    getShiroFilterFactoryBean中添加,对/user/add/user/update的路径进行控制
//授权
filterMap.put("/user/add", "perms[user:add]");
filterMap.put("/user/update", "perms[user:update]");
  • 自定义未经授权的跳转页面
//设置未经授权的页面跳转
bean.setUnauthorizedUrl("/unauthorized");
@RequestMapping("/unauthorized")
@ResponseBody
public String unauthorized(){
    return "未经授权";
}
  • 根据数据库的真实数据进行授权
    image
//授权
@Override
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
    System.out.println("授权:doGetAuthorizationInfo");
    SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
    //info.addStringPermission("user:add");
    //拿到当前用户的权限
    Subject subject = SecurityUtils.getSubject();
    User currentUser = (User) subject.getPrincipal();
    System.out.println(subject.getPrincipal());
    //设置当前用户的权限
    info.addStringPermission(currentUser.getPerms());
    return info;
}

getPrincipal()从数据库中获得基本数据:

User(id=3, userName=DJ, passWord=123456, realName=DingJie, perms=user:update)

6、shiro整合thymeleaf

  • 依赖
<dependency>
  <groupId>com.github.theborakompanioni</groupId>
  <artifactId>thymeleaf-extras-shiro</artifactId>
  <version>2.0.0</version>
</dependency>
  • 在自定义的ShiroConfig中加入ShiroDialect
//整合ShiroDialect:用于整合shiro和thymeleaf
@Bean
public ShiroDialect getShiroDialect(){
    return new ShiroDialect();
}
posted @ 2021-07-15 11:37  DingJie1024  阅读(60)  评论(0编辑  收藏  举报