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前言

近期对Springboot框架的学习中，为了更好的学习理解Springsecurity中间件，先学习了一下“老派”的shiro安全框架，本文章将通过注解的方式实现基础的用户认证和角色授权案例

一、shiro简介

Apache Shiro是一个强大且易用的Java安全框架,执行身份验证、授权、密码和会话管理。使用Shiro的易于理解的API,您可以快速、轻松地获得任何应用程序,从最小的移动应用程序到最大的网络和企业应用程序。

二、环境搭建

2.1.数据库

2.1.1user用户表

2.1.2user_role用户角色关系表

2.1.3role角色表

2.1.4role_permission角色权限关系表

2.1.5permission权限表

2.2导坐标

<properties><java.version>1.8</java.version><!--shiro--><shiro.version>1.3.2</shiro.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-logging</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.29</version></dependency><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>3.4.3</version></dependency><!-- SECURITY begin --><dependency><groupId>org.apache.shiro</groupId><artifactId>shiro-core</artifactId><version>${shiro.version}</version></dependency><dependency><groupId>org.apache.shiro</groupId><artifactId>shiro-spring</artifactId><version>${shiro.version}</version></dependency><dependency><groupId>org.apache.shiro</groupId><artifactId>shiro-web</artifactId><version>${shiro.version}</version></dependency><dependency><groupId>org.apache.shiro</groupId><artifactId>shiro-ehcache</artifactId><version>${shiro.version}</version></dependency><!-- SECURITY end --></dependencies>

2.3实体类

2.3.1User

@TableName("pe_user")
@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {@TableId(value = "id",type = IdType.AUTO)private int id;private String username;private String password;private String salt;@TableField(exist = false)private Set<Role> roles;
}

2.3.2Role

@TableName("pe_role")
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Role {@TableId(value = "id",type = IdType.AUTO)private int id;private String name;private String code;private String description;@TableField(exist = false)private Set<Permission> permissions;
}

2.3.3Permission

@TableName("pe_permission")
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Permission {@TableId(value = "id",type = IdType.AUTO)private int id;private String name;private String code;private String description;
}

2.4MVC三层

2.4.1User

2.4.1.1mapper层

public interface UserMapper extends BaseMapper<User> {@Select("select * from pe_user where username = #{name}")User findUserByName(String name);//级联查询@Results({@Result(column = "id",property = "id"),@Result(column = "username",property = "username"),@Result(column = "password",property = "password"),@Result(column = "salt",property = "salt"),@Result(column = "id",property = "roles",many=@Many(select = "com.apesource.shirostudy_demo_05.dao.RoleMapper.findRoleIdsByUserId"))})@Select("select * from pe_user where id = #{id}")User findUserDetailById(@Param("id") int id);
}

2.4.1.2service层

public interface IUserService extends IService<User> {User findUserByName(String name);User findUserDetailById(int id);
}@Service
@SuppressWarnings("all")
public class UserServiceImp extends ServiceImpl<UserMapper, User> implements IUserService {@AutowiredUserMapper userMapper;@AutowiredIRoleService roleService;@Overridepublic User findUserByName(String name) {User user = userMapper.findUserByName(name);return user;}@Overridepublic User findUserDetailById(int id) {//根据userid查询userUser user = userMapper.findUserDetailById(id);//返回return user;}
}

2.4.1.3controller层

@RestController
public class UserController {@Autowiredprivate IUserService userService;//个人主页@RequiresPermissions("user-home")@RequestMapping(value = "/user/home")public String home() {return "访问个人主页成功";}//根据名字查询用户基本信息@RequiresPermissions("user-find")@RequestMapping(value = "/user/userByName/{name}")public String findUserByName(@PathVariable String name) {System.out.println(name);User user = userService.findUserByName(name);return user.toString();}//更新@RequiresPermissions("user-update")@RequestMapping(value = "/user/{id}", method = RequestMethod.PUT)public String update(@PathVariable String id) {return "更新用户成功";}//删除@RequiresPermissions("user-delete")@RequestMapping(value = "/user/{id}", method = RequestMethod.DELETE)public String delete(@PathVariable String id) {return "删除用户成功";}//根据id查询用户详细信息@RequiresPermissions("user-find")@RequestMapping(value = "/user/userById/{id}")public String findUserDetailById(@PathVariable int id) {return userService.findUserDetailById(id).toString();}//登录页面@RequestMapping(value = "/login")public String login(User user) {try {//1.构造登录令牌UsernamePasswordToken token = new UsernamePasswordToken(user.getUsername(), user.getPassword());//2.//2.获取subjectSubject subject = SecurityUtils.getSubject();//3.调用subject进行登录subject.login(token);return "登录成功！！！";} catch (AuthenticationException e) {return "用户名或密码错误！！！";}}//未登陆与未授权页面@RequestMapping(value = "/autherror")public String autherror() {return "未登录";}}

2.4.2Role

2.4.2.1mapper层

public interface RoleMapper extends BaseMapper<Role> {@Results({@Result(column = "id",property = "id"),@Result(column = "name",property = "name"),@Result(column = "code",property = "code"),@Result(column = "description",property = "description"),@Result(column = "id",property = "permissions",many =@Many(select = "com.apesource.shirostudy_demo_05.dao.PermissionMapper.findPermissionIdsByRoleId"))})@Select("SELECT * FROM pe_role WHERE id IN (SELECT role_id FROM pe_user_role WHERE user_id = #{id})")Set<Role> findRoleIdsByUserId(int id);
}

2.4.2.2service层

public interface IRoleService extends IService<Role> {Set<Role> findRoleIdsByUserId(int id);
}
@Service
@SuppressWarnings("all")
public class RoleServiceImp extends ServiceImpl<RoleMapper, Role> implements IRoleService {@AutowiredRoleMapper roleMapper;@AutowiredIPermissionService permissionService;@Overridepublic Set<Role> findRoleIdsByUserId(int id) {Set<Role> roles = roleMapper.findRoleIdsByUserId(id);return roles;}
}

2.4.2.3controller层

由于不演示，无。

2.3.3Permission

2.4.3.1mapper层

public interface PermissionMapper extends BaseMapper<Permission> {@Results({@Result(column = "id",property = "id"),@Result(column = "name",property = "name"),@Result(column = "code",property = "code"),@Result(column = "description",property = "description"),})@Select("SELECT * FROM pe_permission WHERE id IN (SELECT permission_id FROM pe_role_permission WHERE role_id = #{id} ) ")Set<Permission> findPermissionIdsByRoleId(int id);
}

2.4.3.2service层

public interface IPermissionService extends IService<Permission> {Set<Permission> findPermissionIdsByRoleId(int id);
}
@Service
public class PermissionServiceImp extends ServiceImpl<PermissionMapper, Permission> implements IPermissionService {@Autowired(required = false)PermissionMapper permissionMapper;@Overridepublic Set<Permission> findPermissionIdsByRoleId(int id) {Set<Permission> permissionIds = permissionMapper.findPermissionIdsByRoleId(id);return permissionIds;}
}

2.4.3.3controller层

由于不演示，无。

2.5.加密工具类

public class DigestsUtil {public static final String SHA1 = "SHA-1";public static final Integer COUNTS =369;/*** @Description sha1方法* @param input 需要散列字符串* @param salt 盐字符串* @return*/public static String show(String input, String salt) {return new SimpleHash(SHA1, input, salt,COUNTS).toString();}/*** @Description 随机获得salt字符串* @return*/public static String generateSalt(){SecureRandomNumberGenerator randomNumberGenerator = new SecureRandomNumberGenerator();return randomNumberGenerator.nextBytes().toHex();}/*** @Description 生成密码字符密文和salt密文* @param* @return*/public static Map<String,String> entryptPassword(String passwordPlain) {Map<String,String> map = new HashMap<>();String salt = generateSalt();String password =show(passwordPlain,salt);map.put("salt", salt);map.put("password", password);return map;}
}

2.6.全局异常处理器

@ControllerAdvice
public class BaseExceptionHandler {@ExceptionHandler(value = AuthorizationException.class)@ResponseBodypublic String error(HttpServletRequest request, HttpServletResponse response, AuthorizationException e){return "未授权！！！";}
}

2.7自定义Realm

public class MyRealm extends AuthorizingRealm {@AutowiredIUserService userService;@Overrideprotected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {int userId = (int) principalCollection.getPrimaryPrincipal();User user = userService.findUserDetailById(userId);Set<String> roles = new HashSet<>();Set<String> permissions = new HashSet<>();user.getRoles().stream().forEach(role -> {roles.add(role.getCode());role.getPermissions().stream().forEach(permission -> {permissions.add(permission.getCode());});});SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();info.addRoles(roles);info.addStringPermissions(permissions);return info;}/*** 认证方法*  参数：传递的用户名密码*/@Overrideprotected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {//1.获取登录的用户名密码（token）UsernamePasswordToken token = (UsernamePasswordToken) authenticationToken;String username = token.getUsername();//2.根据用户名查询数据库//mybatis情景下:user对象中包含ID，name，pwd(匿名)User user = userService.findUserByName(username);if(user != null){SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(user.getId(),user.getPassword(), ByteSource.Util.bytes(user.getSalt()),"myRealm");return info;}return null;}/*** @Description 自定义密码比较器* @param* @return* bean标签 init-method属性*/@PostConstructpublic void initCredentialsMatcher() {//指定密码算法HashedCredentialsMatcher hashedCredentialsMatcher = new HashedCredentialsMatcher(DigestsUtil.SHA1);//指定迭代次数hashedCredentialsMatcher.setHashIterations(DigestsUtil.COUNTS);//生效密码比较器setCredentialsMatcher(hashedCredentialsMatcher);}
}

2.8shiro配置类

@Configuration
public class ShiroConfiguration {/*** 1.创建shiro自带cookie对象*/@Beanpublic SimpleCookie sessionIdCookie(){SimpleCookie simpleCookie = new SimpleCookie();simpleCookie.setName("ShiroSession");return simpleCookie;}//2.创建realm@Beanpublic MyRealm getRealm(){return new MyRealm();}/*** 3.创建会话管理器*/@Beanpublic DefaultWebSessionManager sessionManager(){DefaultWebSessionManager sessionManager = new DefaultWebSessionManager();sessionManager.setSessionValidationSchedulerEnabled(false);sessionManager.setSessionIdCookieEnabled(true);sessionManager.setSessionIdCookie(sessionIdCookie());sessionManager.setGlobalSessionTimeout(3600000);return sessionManager;}//4.创建安全管理器@Beanpublic SecurityManager defaultWebSecurityManager() {DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();securityManager.setRealm(getRealm());securityManager.setSessionManager(sessionManager());return securityManager;}/*** 5.保证实现了Shiro内部lifecycle函数的bean执行*/@Bean(name = "lifecycleBeanPostProcessor")public static LifecycleBeanPostProcessor getLifecycleBeanPostProcessor() {return new LifecycleBeanPostProcessor();}/*** 6.开启对shiro注解的支持*   AOP式方法级权限检查*/@Bean@DependsOn("lifecycleBeanPostProcessor")public DefaultAdvisorAutoProxyCreator getDefaultAdvisorAutoProxyCreator() {DefaultAdvisorAutoProxyCreator defaultAdvisorAutoProxyCreator = new DefaultAdvisorAutoProxyCreator();defaultAdvisorAutoProxyCreator.setProxyTargetClass(true);return defaultAdvisorAutoProxyCreator;}/*** 7.配合DefaultAdvisorAutoProxyCreator事项注解权限校验*/@Beanpublic AuthorizationAttributeSourceAdvisor getAuthorizationAttributeSourceAdvisor() {AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor = new AuthorizationAttributeSourceAdvisor();authorizationAttributeSourceAdvisor.setSecurityManager(defaultWebSecurityManager());return authorizationAttributeSourceAdvisor;}//8.配置shiro的过滤器工厂再web程序中，shiro进行权限控制全部是通过一组过滤器集合进行控制@Beanpublic ShiroFilterFactoryBean shiroFilter() {//1.创建过滤器工厂ShiroFilterFactoryBean filterFactory = new ShiroFilterFactoryBean();//2.设置安全管理器filterFactory.setSecurityManager(defaultWebSecurityManager());//3.通用配置（跳转登录页面，为授权跳转的页面）filterFactory.setLoginUrl("/autherror");//跳转url地址//4.设置过滤器集合//key = 拦截的url地址//value = 过滤器类型Map<String,String> filterMap = new LinkedHashMap<>();//key：请求规则   value：过滤器名称filterMap.put("/login","anon");//当前请求地址可以匿名访问filterMap.put("/user/**","authc");//当前请求地址必须认证之后可以访问//在过滤器工程内设置系统过滤器filterFactory.setFilterChainDefinitionMap(filterMap);return filterFactory;}}

三、案例演示

用户密码均是123456加密后保存至数据库

3.1 登录认证

成功登录：

失败登录：

3.2 权限认证

由于刚刚登录的信息有管理员和员工的身份，所以其所有功能都能使用。
有权限时：
无权限时：
无权限时会被全局异常处理器拦截，并作出响应的响应。

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总结

通过对shrio的学习，更好的理解了安全认证以及鉴权授权的流程，大概了解了安全认证的机制，对我之后学习理解Springsecurity有更好的帮助。