一、Shiro简介
核心角色
1）Subject：认证主体
代表当前系统的使用者，就是用户，在Shiro的认证中，认证主体通常就是userName和passWord，或者其他用户相关的唯一标识。
2）SecurityManager：安全管理器
Shiro架构中最核心的组件，通过它可以协调其他组件完成用户认证和授权。实际上，SecurityManager就是Shiro框架的控制器。
3）Realm：域对象
定义了访问数据的方式，用来连接不同的数据源，如：关系数据库，配置文件等等。
核心理念
Shiro自己不维护用户和权限，通过Subject用户主体和Realm域对象的注入，完成用户的认证和授权。
二、整合SpringBoot2框架
1、核心依赖
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-core</artifactId>
<version>1.4.0</version>
</dependency>
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-spring</artifactId>
<version>1.4.0</version>
</dependency>2、Shiro核心配置
@Configuration
public class ShiroConfig {
@Bean("sessionManager")
public SessionManager sessionManager(){
DefaultWebSessionManager sessionManager = new DefaultWebSessionManager();
//设置session过期时间
sessionManager.setGlobalSessionTimeout(60 * 60 * 1000);
sessionManager.setSessionValidationSchedulerEnabled(true);
// 去掉shiro登录时url里的JSESSIONID
sessionManager.setSessionIdUrlRewritingEnabled(false);
return sessionManager;
}
@Bean("securityManager")
public SecurityManager securityManager(UserRealm userRealm, SessionManager sessionManager) {
DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
securityManager.setSessionManager(sessionManager);
securityManager.setRealm(userRealm);
return securityManager;
}
@Bean("shiroFilter")
public ShiroFilterFactoryBean shiroFilter(SecurityManager securityManager) {
ShiroFilterFactoryBean shiroFilter = new ShiroFilterFactoryBean();
shiroFilter.setSecurityManager(securityManager);
shiroFilter.setLoginUrl("/userLogin");
shiroFilter.setUnauthorizedUrl("/");
Map<String, String> filterMap = new LinkedHashMap<>();
filterMap.put("/userLogin", "anon");
shiroFilter.setFilterChainDefinitionMap(filterMap);
return shiroFilter;
}
@Bean("lifecycleBeanPostProcessor")
public LifecycleBeanPostProcessor lifecycleBeanPostProcessor() {
return new LifecycleBeanPostProcessor();
}
@Bean
public DefaultAdvisorAutoProxyCreator defaultAdvisorAutoProxyCreator() {
DefaultAdvisorAutoProxyCreator proxyCreator = new DefaultAdvisorAutoProxyCreator();
proxyCreator.setProxyTargetClass(true);
return proxyCreator;
}
@Bean
public AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor(SecurityManager securityManager) {
AuthorizationAttributeSourceAdvisor advisor = new AuthorizationAttributeSourceAdvisor();
advisor.setSecurityManager(securityManager);
return advisor;
}
}3、域对象配置
@Component
public class UserRealm extends AuthorizingRealm {
@Resource
private SysUserMapper sysUserMapper ;
@Resource
private SysMenuMapper sysMenuMapper ;
@Override
public AuthorizationInfo doGetAuthorizationInfo
(PrincipalCollection principals) {
SysUserEntity user = (SysUserEntity)principals.getPrimaryPrincipal();
if(user == null) {
throw new UnknownAccountException("账号不存在");
}
List<String> permsList;
//默认用户拥有最高权限
List<SysMenuEntity> menuList = sysMenuMapper.selectList();
permsList = new ArrayList<>(menuList.size());
for(SysMenuEntity menu : menuList){
permsList.add(menu.getPerms());
}
//用户权限列表
Set<String> permsSet = new HashSet<>();
for(String perms : permsList){
if(StringUtils.isEmpty(perms)){
continue;
}
permsSet.addAll(Arrays.asList(perms.trim().split(",")));
}
SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
info.setStringPermissions(permsSet);
return info;
}
@Override
protected AuthenticationInfo doGetAuthenticationInfo(
AuthenticationToken authToken) throws AuthenticationException {
UsernamePasswordToken token = (UsernamePasswordToken)authToken;
//查询用户信息
SysUserEntity user = sysUserMapper.selectOne(token.getUsername());
//账号不存在
if(user == null) {
throw new UnknownAccountException("账号或密码不正确");
}
//账号锁定
if(user.getStatus() == 0){
throw new LockedAccountException("账号已被锁定,请联系管理员");
}
SimpleAuthenticationInfo info = new SimpleAuthenticationInfo
(user, user.getPassword(),
ByteSource.Util.bytes(user.getSalt()),
getName());
return info;
}
@Override
public void setCredentialsMatcher(CredentialsMatcher credentialsMatcher) {
HashedCredentialsMatcher shaCredentialsMatcher = new HashedCredentialsMatcher();
shaCredentialsMatcher.setHashAlgorithmName(ShiroUtils.hashAlgorithmName);
shaCredentialsMatcher.setHashIterations(ShiroUtils.hashIterations);
super.setCredentialsMatcher(shaCredentialsMatcher);
}
}4、核心工具类
public class ShiroUtils {
public final static String hashAlgorithmName = "SHA-256";
public final static int hashIterations = 16;
public static String sha256(String password, String salt) {
return new SimpleHash(hashAlgorithmName, password, salt, hashIterations).toString();
}
// 获取一个测试账号 admin
public static void main(String[] args) {
// 3743a4c09a17e6f2829febd09ca54e627810001cf255ddcae9dabd288a949c4a
System.out.println(sha256("admin","123")) ;
}
public static Session getSession() {
return SecurityUtils.getSubject().getSession();
}
public static Subject getSubject() {
return SecurityUtils.getSubject();
}
public static SysUserEntity getUserEntity() {
return (SysUserEntity)SecurityUtils.getSubject().getPrincipal();
}
public static Long getUserId() {
return getUserEntity().getUserId();
}
public static void setSessionAttribute(Object key, Object value) {
getSession().setAttribute(key, value);
}
public static Object getSessionAttribute(Object key) {
return getSession().getAttribute(key);
}
public static boolean isLogin() {
return SecurityUtils.getSubject().getPrincipal() != null;
}
public static void logout() {
SecurityUtils.getSubject().logout();
}
}5、自定义权限异常提示
@RestControllerAdvice
public class ShiroException {
@ExceptionHandler(AuthorizationException.class)
public String authorizationException (){
return "抱歉您没有权限访问该内容!";
}
@ExceptionHandler(Exception.class)
public String handleException(Exception e){
return "系统异常!";
}
}三、案例演示代码
1、测试接口
@RestController
public class ShiroController {
private static Logger LOGGER = LoggerFactory.getLogger(ShiroController.class) ;
@Resource
private SysMenuMapper sysMenuMapper ;
@RequestMapping("/userLogin")
public void userLogin (
@RequestParam(value = "userName") String userName,
@RequestParam(value = "passWord") String passWord){
try{
Subject subject = ShiroUtils.getSubject();
UsernamePasswordToken token = new UsernamePasswordToken(userName, passWord);
subject.login(token);
LOGGER.info("登录成功");
}catch (Exception e) {
e.printStackTrace();
}
}
@RequestMapping("/menu/list")
@RequiresPermissions("sys:user:shiro")
public List list(){
return sysMenuMapper.selectList() ;
}
@RequestMapping("/menu/list2")
@RequiresPermissions("ccc:ddd:bbb")
public List list2(){
return sysMenuMapper.selectList() ;
}
@RequestMapping("/userLogOut")
public String logout (){
ShiroUtils.logout();
return "success" ;
}
}2、测试流程
1)、登录后取得权限
http://localhost:7011/userLogin?userName=admin&passWord=admin
2)、访问有权限接口
http://localhost:7011/menu/list
3)、访问无权限接口
http://localhost:7011/menu/list2
4)、退出登录
http://localhost:7011/userLogOut
四、源代码地址
GitHub地址：知了一笑
https://github.com/cicadasmile/middle-ware-parent
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