springboot集成shiro实现注册、登录、退出功能

迷南。 2022-08-28 13:43 417阅读 0赞

# Shiro中的认证对象 #

#### \- Subject 主体 ####

访问系统的用户。主体可以是用户、程序等，进行认证的都称为主体。

#### \- Principal 身份信息 ####

是主体进行身份认证的标识，标识具有唯一性，如用户名、手机号、邮箱等，一个主体可以有多个身份，但必须有一个主身份。

#### \- Credential 凭证信息 ####

是只有主体自己知道的安全信息，如密码、证书等。

# Shiro的认证过程 #

首先主体需要携带身份信息和凭证信息，比如用户名和密码，然后Shiro会将这些信息包装成一个令牌，也就是Token，然后再通过Shiro中的安全管理器进行认证。安全管理器再调用认证器，认证器再去调用Realm获取数据。将携带的身份信息和凭证信息与原始数据进行比对，如果一致的话就会进入应用也就是登录认证成功。

# Shiro配置（重点） #

### 引入Shiro依赖 ###

<dependency>
                <groupId>org.apache.shiro</groupId>
                <artifactId>shiro-spring</artifactId>
                <version>1.4.1</version>
            </dependency>

### 配置ShiroConfig ###

package boc.ljh.config;
    
    import boc.ljh.config.shiro.realm.UserRealm;
    import boc.ljh.pojo.User;
    import org.apache.logging.log4j.message.StringFormattedMessage;
    import org.apache.shiro.authc.credential.HashedCredentialsMatcher;
    import org.apache.shiro.realm.Realm;
    import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
    import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    
    import java.util.HashMap;
    import java.util.Map;
    
    @Configuration
    public class ShiroConfig { 
    
        //1.创建ShiroFilter 负责拦截所有请求
        @Bean
        public ShiroFilterFactoryBean getShiroFilterFactoryBean(DefaultWebSecurityManager defaultWebSecurityManager){ 
            ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
    
            //给ShiroFilter设置安全管理器
            shiroFilterFactoryBean.setSecurityManager(defaultWebSecurityManager);
    
            //配置系统受限和认证资源
            Map<String,String> map = new HashMap<String,String>();
            map.put("/user/addUser","authc");//authc 请求这个资源需要认证和授权
            map.put("/user/loadAllUserList","authc");
            shiroFilterFactoryBean.setFilterChainDefinitionMap(map);
            //配置认证界面 当需要进行认证时会跳到下面的login.jsp页面。
            shiroFilterFactoryBean.setLoginUrl("/WEB_INF/jsp/login.jsp");
            return shiroFilterFactoryBean;
        }
    
        //2.创建安全管理器
        @Bean
        public DefaultWebSecurityManager getDefaultWebSecurityManager(Realm realm){ 
            DefaultWebSecurityManager defaultWebSecurityManager = new DefaultWebSecurityManager();
            //给安全管理器设置Realm
            defaultWebSecurityManager.setRealm(realm);
            return defaultWebSecurityManager;
        }
    
        //3.创建Realm
        @Bean
        public Realm getRealm(){ 
            UserRealm userRealm = new UserRealm();
            //修改凭证匹配器
            HashedCredentialsMatcher hashedCredentialsMatcher = new HashedCredentialsMatcher();
            //设置加密算法为MD5
            hashedCredentialsMatcher.setHashAlgorithmName("MD5");
            //设置散列次数
            hashedCredentialsMatcher.setHashIterations(1024);
            userRealm.setCredentialsMatcher(hashedCredentialsMatcher);
            return userRealm;
        }
    }

### 创建自定义的Realm ###

package boc.ljh.config.shiro.realm;
    
    import boc.ljh.pojo.User;
    import boc.ljh.service.UserService;
    import boc.ljh.utils.ApplicationContextUtils;
    import org.apache.shiro.authc.AuthenticationException;
    import org.apache.shiro.authc.AuthenticationInfo;
    import org.apache.shiro.authc.AuthenticationToken;
    import org.apache.shiro.authc.SimpleAuthenticationInfo;
    import org.apache.shiro.authz.AuthorizationInfo;
    import org.apache.shiro.realm.AuthorizingRealm;
    import org.apache.shiro.subject.PrincipalCollection;
    import org.apache.shiro.util.ByteSource;
    import org.springframework.util.ObjectUtils;
    
    //自动以Realm
    public class UserRealm  extends AuthorizingRealm { 
        @Override
        protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) { 
            return null;
        }
    
        @Override
        protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException { 
            //根据身份信息
            String principal = (String) authenticationToken.getPrincipal();
            //在工厂中获取bean对象
            UserService userService = (UserService) ApplicationContextUtils.getBean("userServiceImpl");
            User user = userService.loadUserInfoByUsername(principal);
            if(!ObjectUtils.isEmpty(user)){ 
                return new SimpleAuthenticationInfo(user.getUserName(),user.getUserPassword(), ByteSource.Util.bytes(user.getUserSalt()),this.getName());
            }
            return null;
        }
    }

### 生成随机盐配置 ###

package boc.ljh.utils;
    
    import java.util.Random;
    
    public class SaltUtils { 
    
        //生成随机盐
        public static String getSalt(int num){ 
            char[] chars = "0123456789AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz!@#$%^&*()_+-={}[],./;:\"'\\".toCharArray();
            StringBuilder stringBuilder = new StringBuilder();
            for (int i = 0; i <num ; i++){ 
                char aChar  = chars[new Random().nextInt(chars.length)];
                stringBuilder.append(aChar);
            }
            return stringBuilder.toString();
        }
    }

### 获取工厂中bean的配置 ###

package boc.ljh.utils;
    
    import org.springframework.beans.BeansException;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.ApplicationContextAware;
    import org.springframework.stereotype.Component;
    
    /** * 配置获取工厂中bean对象 */
    @Component
    public class ApplicationContextUtils implements ApplicationContextAware { 
    
        private static ApplicationContext context;
    
        @Override
        public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { 
            this.context = applicationContext;
        }
    
        //根据bean名字获取工厂中指定的bean对象
        public static Object getBean(String beanName){ 
            return context.getBean(beanName);
        }
    }

# 实现用户注册功能（注册时对密码进行MD5+salt+hash散列加密） #

### controller ###

package boc.ljh.controller;
    
    import boc.ljh.config.AppCode;
    import boc.ljh.config.PaginationHelper;
    import boc.ljh.config.Result;
    import boc.ljh.pojo.User;
    import boc.ljh.service.UserService;
    import com.github.xiaoymin.knife4j.annotations.ApiOperationSupport;
    import io.swagger.annotations.*;
    import org.apache.shiro.SecurityUtils;
    import org.apache.shiro.authc.IncorrectCredentialsException;
    import org.apache.shiro.authc.UsernamePasswordToken;
    import org.apache.shiro.subject.Subject;
    import org.springframework.web.bind.annotation.*;
    
    import javax.annotation.Resource;
    import javax.jws.soap.SOAPBinding;
    
    
    @Api(tags = "用户管理")
    @RestController
    @RequestMapping("/user")
    public class UserController { 
    
        @Resource
        private UserService userService;
    
    
        @ApiOperation("用户注册")
        @PostMapping("/register")
        @ApiOperationSupport(ignoreParameters = { 
                "userId",
                "userAge",
                "userSalt"
        })
        public Result register(@RequestBody User user){ 
            Result result = new Result();
            Integer num = userService.registerUserInfo(user);
            if(num == 1){ 
                result.setMessage("注册成功");
                result.setStatus(200);
            }else{ 
                result.setMessage("注册失败");
                result.setStatus(500);
            }
            return result;
        }
      
    }

### dao ###

//用户注册
        Integer registerUserInfo(User user);

### mapper.xml ###

<insert id="registerUserInfo" parameterType="boc.ljh.pojo.User">
            insert into user(user_name, user_password,user_salt) values (#{ userName},#{ userPassword},#{ userSalt});
        </insert>

### service ###

//用户注册
        Integer registerUserInfo(User user);

### serviceImpl ###

@Override
        public Integer registerUserInfo(User user) { 
            //1.生成随机盐
            String salt = SaltUtils.getSalt(8);
            //2.将随机盐保存到数据库
            user.setUserSalt(salt);
            //明文密码进行MD5+随机盐+hash散列处理
            Md5Hash md5Hash = new Md5Hash(user.getUserPassword(),salt,1024);
            user.setUserPassword(md5Hash.toHex());
            Integer num = userDao.registerUserInfo(user);
            return num;
        }

# 实现用户登录功能 #

### controller ###

@ApiOperation("用户登录")
        @PostMapping("/login")
        @ApiOperationSupport(ignoreParameters = { 
                "userAge",
                "userId",
                "userSalt"
    
        })
        public Result login(@RequestBody User user){ 
            Result result = new Result();
            Subject subject = SecurityUtils.getSubject();
            try { 
                subject.login(new UsernamePasswordToken(user.getUserName(),user.getUserPassword()));
                result.setMessage(AppCode.LOGIN_SUCCESS.message);
                result.setStatus(AppCode.LOGIN_SUCCESS.code);
                return result;
            }catch (UnsupportedOperationException e) { 
                result.setMessage(AppCode.LOGIN_NAME_FALL.message);
                result.setStatus(AppCode.LOGIN_NAME_FALL.code);
                return result;
            }catch (IncorrectCredentialsException e){ 
                result.setMessage(AppCode.LOGIN_PASS_FALL.message);
                result.setStatus(AppCode.LOGIN_PASS_FALL.code);
                return result;
            }
        }

### dao ###

//根据用户名获取用户信息
        User loadUserInfoByUsername(String usename);

### mapper.xml ###

### service ###

//根据用户名获取用户信息
        User loadUserInfoByUsername(String usename);

### serviceImpl ###

@Override
        public User loadUserInfoByUsername(String usename) { 
            return userDao.loadUserInfoByUsername(usename);
        }

# 实现用户退出功能 #

### controller ###

@ApiOperation("用户退出")
        @PostMapping("/loginout")
        public Result loginout(){ 
            Result result = new Result();
            Subject subject = SecurityUtils.getSubject();
            subject.logout();
            result.setStatus(200);
            result.setMessage("退出成功");
            return result;
        }