SpringBoot整合shiro从初恋到失恋

        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-spring</artifactId>
            <version>1.4.0</version>
        </dependency>

##端口号
server.port=8888
##数据库配置
##数据库地址
spring.datasource.url=jdbc:mysql://localhost:3306/shiro?characterEncoding=utf8&useSSL=false\
  &serverTimezone=GMT%2B8
##数据库用户名
spring.datasource.username=root
##数据库密码
spring.datasource.password=Panbing936@
##数据库驱动
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
##validate  加载hibernate时，验证创建数据库表结构
##create   每次加载hibernate，重新创建数据库表结构，这就是导致数据库表数据丢失的原因。
##create-drop        加载hibernate时创建，退出是删除表结构
##update                 加载hibernate自动更新数据库结构
##validate 启动时验证表的结构，不会创建表
##none  启动时不做任何操作
spring.jpa.hibernate.ddl-auto=update
##控制台打印sql
spring.jpa.show-sql=true
# 建议在开发时关闭缓存,不然没法看到实时页面
spring.thymeleaf.cache=false
##去除thymeleaf的html严格校验
spring.thymeleaf.mode=LEGACYHTML5
#没下面这行配置就会报这个错误
#Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
spring.jpa.database-platform=org.hibernate.dialect.MySQL5Dialect

@Entity
@Data
public class SysMenu implements Serializable {

    @Id
    @GeneratedValue
    private Integer menuId;
    private String menuName;

    @ManyToMany
    @JoinTable(name = "SysRoleMenu", joinColumns = {@JoinColumn(name = "menuId")}, inverseJoinColumns = {@JoinColumn(name = "roleId")})
    private List<SysRole> roleList;
}

@Entity
@Data
public class SysRole implements Serializable {

    @Id
    @GeneratedValue
    private Integer roleId;

    private String roleName;

    //多对多关系
    @ManyToMany(fetch = FetchType.EAGER)
    @JoinTable(name = "SysRoleMenu", joinColumns = {@JoinColumn(name = "roleId")}, inverseJoinColumns = {@JoinColumn(name = "menuId")})
    private List<SysMenu> menuList;

    //多对多关系
    @ManyToMany
    @JoinTable(name = "SysUserRole", joinColumns = {@JoinColumn(name = "roleId")}, inverseJoinColumns = {@JoinColumn(name = "userId")})
    private List<SysUser> userList;// 一个角色对应多个用户
}

@Entity
@Data
public class SysUser implements Serializable {

    @Id
    @GeneratedValue
    private Integer userId;
    @NotEmpty
    private String userName;
    @NotEmpty
    private String passWord;

    //多对多关系
    @ManyToMany(fetch = FetchType.EAGER)
    //急加载，加载一个实体时，定义急加载的属性会立即从数据库中加载
    //FetchType.LAZY：懒加载，加载一个实体时，定义懒加载的属性不会马上从数据库中加载
    @JoinTable(name = "SysUserRole", joinColumns = {@JoinColumn(name = "userId")},
            inverseJoinColumns = {@JoinColumn(name = "roleId")})
    private List<SysRole> roleList;// 一个用户具有多个角色

}

public interface UserRepository extends CrudRepository<SysUser,Long> {

    SysUser findByUserName(String username);
}

public class MyShiroRealm extends AuthorizingRealm {

    @Resource
    private UserRepository userRepository;

    //授权
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        SimpleAuthorizationInfo authorizationInfo = new SimpleAuthorizationInfo();
        SysUser userInfo  = (SysUser)principals.getPrimaryPrincipal();
        for(SysRole role:userInfo.getRoleList()){
            authorizationInfo.addRole(role.getRoleName());
            for(SysMenu menu:role.getMenuList()){
                authorizationInfo.addStringPermission(menu.getMenuName());
            }
        }
        return authorizationInfo;
    }

    //认证
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token)
            throws AuthenticationException {
        //获得当前用户的用户名
        String username = (String)token.getPrincipal();
        System.out.println(token.getCredentials());
        //根据用户名找到对象
        //实际项目中，这里可以根据实际情况做缓存，如果不做，Shiro自己也是有时间间隔机制，2分钟内不会重复执行该方法
        SysUser userInfo = userRepository.findByUserName(username);
        if(userInfo == null){
            return null;
        }
        //这里会去校验密码是否正确
        SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(
                userInfo, //用户名
                userInfo.getPassWord(),//密码
                getName()
        );
        return authenticationInfo;
    }
}

@Configuration
public class ShiroConfig {
    private final Logger logger = LoggerFactory.getLogger(this.getClass());

    @Bean
    public ShiroFilterFactoryBean shirFilter(SecurityManager securityManager) {
        logger.info("启动shiroFilter--时间是：" + new Date());
        ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
        shiroFilterFactoryBean.setSecurityManager(securityManager);
        //shiro拦截器
        Map<String,String> filterChainDefinitionMap = new LinkedHashMap<String,String>();
        //<!-- authc:所有url都必须认证通过才可以访问; anon:所有url都都可以匿名访问-->
        //<!-- 过滤链定义，从上向下顺序执行，一般将/**放在最为下边 -->

        // 配置不被拦截的资源及链接
        filterChainDefinitionMap.put("/static/**", "anon");
        // 退出过滤器
        filterChainDefinitionMap.put("/logout", "logout");

        //配置需要认证权限的
        filterChainDefinitionMap.put("/**", "authc");
        // 如果不设置默认会自动寻找Web工程根目录下的"/login"页面，即本文使用的login.html
        shiroFilterFactoryBean.setLoginUrl("/login");
        // 登录成功后要跳转的链接
        shiroFilterFactoryBean.setSuccessUrl("/index");

        //未授权界面
        shiroFilterFactoryBean.setUnauthorizedUrl("/403");
        shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionMap);
        return shiroFilterFactoryBean;
    }

    //自定义身份认证Realm（包含用户名密码校验，权限校验等）
    @Bean
    public MyShiroRealm myShiroRealm(){
        MyShiroRealm myShiroRealm = new MyShiroRealm();
        return myShiroRealm;
    }


    @Bean
    public SecurityManager securityManager(){
        DefaultWebSecurityManager securityManager =  new DefaultWebSecurityManager();
        securityManager.setRealm(myShiroRealm());
        return securityManager;
    }

    //开启shiro aop注解支持，不开启的话权限验证就会失效
    @Bean
    public AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor(SecurityManager securityManager){
        AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor = new AuthorizationAttributeSourceAdvisor();
        authorizationAttributeSourceAdvisor.setSecurityManager(securityManager);
        return authorizationAttributeSourceAdvisor;
    }

    //配置异常处理，不配置的话没有权限后台报错，前台不会跳转到403页面
    @Bean(name="simpleMappingExceptionResolver")
    public SimpleMappingExceptionResolver
    createSimpleMappingExceptionResolver() {
        SimpleMappingExceptionResolver simpleMappingExceptionResolver = new SimpleMappingExceptionResolver();
        Properties mappings = new Properties();
        mappings.setProperty("DatabaseException", "databaseError");//数据库异常处理
        mappings.setProperty("UnauthorizedException","403");
        simpleMappingExceptionResolver.setExceptionMappings(mappings);  // None by default
        simpleMappingExceptionResolver.setDefaultErrorView("error");    // No default
        simpleMappingExceptionResolver.setExceptionAttribute("ex");     // Default is "exception"
        return simpleMappingExceptionResolver;
    }
}

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
index
<br/>
<form th:action="@{/logout}" method="post">
    <p><input type="submit" value="重新登录"/></p>
</form>
<form th:action="@{/select}" method="get">
    <p><input type="submit" value="查看"/></p>
</form>
<form th:action="@{/delete}" method="get">
    <p><input type="submit" value="删除"/></p>
</form>
</body>
</html>

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>Login</title>
</head>
<body>
错误信息：<h4 th:text="${msg}"></h4>
<form action="" method="post">
    <p>账号：<input type="text" name="username" value="dalaoyang"/></p>
    <p>密码：<input type="text" name="password" value="123"/></p>
    <p><input type="submit" value="登录"/></p>
</form>
</body>
</html>