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springBoot+springSecurity 数据库动态管理用户、角色、权限(二)

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本文使用springboot+mybatis+SpringSecurity 实现数据库动态的管理用户、角色、权限管理

本文细分角色和权限,并将用户、角色、权限和资源均采用数据库存储,并且自定义滤器,代替原有的FilterSecurityInterceptor过滤器, 
并分别实现AccessDecisionManager、InvocationSecurityMetadataSourceService和UserDetailsService,并在配置文件中进行相应配置。

spring security的简单原理:

使用众多的拦截器对url拦截,以此来管理权限。但是这么多拦截器,笔者不可能对其一一来讲,主要讲里面核心流程的两个。

首先,权限管理离不开登陆验证的,所以登陆验证拦截器AuthenticationProcessingFilter要讲; 
还有就是对访问的资源管理吧,所以资源管理拦截器AbstractSecurityInterceptor要讲;

但拦截器里面的实现需要一些组件来实现,所以就有了AuthenticationManager、accessDecisionManager等组件来支撑。

现在先大概过一遍整个流程,用户登陆,会被AuthenticationProcessingFilter拦截,调用AuthenticationManager的实现,而且AuthenticationManager会调用ProviderManager来获取用户验证信息(不同的Provider调用的服务不同,因为这些信息可以是在数据库上,可以是在LDAP服务器上,可以是xml配置文件上等),如果验证通过后会将用户的权限信息封装一个User放到spring的全局缓存SecurityContextHolder中,以备后面访问资源时使用。 
访问资源(即授权管理),访问url时,会通过AbstractSecurityInterceptor拦截器拦截,其中会调用FilterInvocationSecurityMetadataSource的方法来获取被拦截url所需的全部权限,在调用授权管理器AccessDecisionManager,这个授权管理器会通过spring的全局缓存SecurityContextHolder获取用户的权限信息,还会获取被拦截的url和被拦截url所需的全部权限,然后根据所配的策略(有:一票决定,一票否定,少数服从多数等),如果权限足够,则返回,权限不够则报错并调用权限不足页面。


重要

本文设计和代码是基于 上一篇博客(请点击)

springboot+mybatis+SpringSecurity 实现用户角色数据库管理

进行修改。


本文目录: 
1:数据库表设计 
2:权限表的业务 
3:springSecurity 配置修改 
4:修改home.html 文件 
5:修改HomeController.java 文件 
6:测试检验

目录结构如下:

技术图片


1:数据库表设计

由于本文增加了权限表所以本文的数据库表为5个分别是: 用户表、角色表、权限表、用户角色中间表、角色权限中间表

技术图片

初始化数据

  1.  
    注意:Sys_permission 表的url通配符为两颗星,比如说 /user下的所有url,应该写成 /user/**;
  2.  
    权限的名字可以随意起名
  • insert into SYS_USER (id,username, password) values (1,‘admin‘, ‘admin‘);
    insert into SYS_USER (id,username, password) values (2,‘abel‘, ‘abel‘);
     
    insert into SYS_ROLE(id,name) values(1,‘ROLE_ADMIN‘);
    insert into SYS_ROLE(id,name) values(2,‘ROLE_USER‘);
     
    insert into SYS_ROLE_USER(SYS_USER_ID,ROLES_ID) values(1,1);
    insert into SYS_ROLE_USER(SYS_USER_ID,ROLES_ID) values(2,2);
     
    BEGIN;
    INSERT INTO `Sys_permission` VALUES (‘1‘, ‘ROLE_HOME‘, ‘home‘, ‘/‘, null), (‘2‘, ‘ROLE_ADMIN‘, ‘ABel‘, ‘/admin‘, null);
    COMMIT;
     
    BEGIN;
    INSERT INTO `Sys_permission_role` VALUES (‘1‘, ‘1‘, ‘1‘), (‘2‘, ‘1‘, ‘2‘), (‘3‘, ‘2‘, ‘1‘);
    COMMIT;
    

      

2:权限表的业务代码

2.1 java bean

Permission.java

  1. package com.us.example.domain;
     
    /**
     * Created by yangyibo on 17/1/20.
     */
    public class Permission {
     
        private int id;
        //权限名称
        private String name;
     
        //权限描述
        private String descritpion;
     
        //授权链接
        private String url;
     
        //父节点id
        private int pid;
     
        public int getId() {
            return id;
        }
     
        public void setId(int id) {
            this.id = id;
        }
     
        public String getName() {
            return name;
        }
     
        public void setName(String name) {
            this.name = name;
        }
     
        public String getDescritpion() {
            return descritpion;
        }
     
        public void setDescritpion(String descritpion) {
            this.descritpion = descritpion;
        }
     
        public String getUrl() {
            return url;
        }
     
        public void setUrl(String url) {
            this.url = url;
        }
     
        public int getPid() {
            return pid;
        }
     
        public void setPid(int pid) {
            this.pid = pid;
        }
    }
    

      

2.2 dao 层

在 com.us.example.dao 包下新建PermissionDao.java 文件。

PermissionDao.java

  1. package com.us.example.dao;
    import com.us.example.config.MyBatisRepository;
    import com.us.example.domain.Permission;
    import java.util.List;
     
    /**
     * Created by yangyibo on 17/1/20.
     */
    public interface PermissionDao {
        public List<Permission> findAll();
        public List<Permission> findByAdminUserId(int userId);
    }
    

      

在src/resource/mapper目录下新建对应的mapper.xml 文件

PermissionDaoMapper.xml

  1. <?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="com.us.example.dao.PermissionDao">
    <select id="findAll"  resultType="com.us.example.domain.Permission">
     
       SELECT * from Sys_permission ;
    </select>
     
     <select id="findByAdminUserId" parameterType="int" resultType="com.us.example.domain.Permission">
          select p.*
            from Sys_User u
            LEFT JOIN sys_role_user sru on u.id= sru.Sys_User_id
            LEFT JOIN Sys_Role r on sru.Sys_Role_id=r.id
            LEFT JOIN Sys_permission_role spr on spr.role_id=r.id
            LEFT JOIN Sys_permission p on p.id =spr.permission_id
            where u.id=#{userId}
     </select>
     </mapper>

     

3:springSecurity 配置修改

3.1 修改 WebSecurityConfig.java

修改com.us.example.config包下的 WebSecurityConfig.java 文件如下:

  1. package com.us.example.config;
     
    import com.us.example.service.CustomUserService;
    import com.us.example.service.MyFilterSecurityInterceptor;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
    import org.springframework.security.config.annotation.web.builders.HttpSecurity;
    import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
    import org.springframework.security.core.userdetails.UserDetailsService;
    import org.springframework.security.web.access.intercept.FilterSecurityInterceptor;
     
    /**
     * Created by yangyibo on 17/1/18.
     */
     
     
    @Configuration
    @EnableWebSecurity
    public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
     
        @Autowired
        private MyFilterSecurityInterceptor myFilterSecurityInterceptor;
     
     
     
            @Bean
        UserDetailsService customUserService(){ //注册UserDetailsService 的bean
            return new CustomUserService();
        }
     
        @Override
        protected void configure(AuthenticationManagerBuilder auth) throws Exception {
            auth.userDetailsService(customUserService()); //user Details Service验证
     
        }
     
        @Override
        protected void configure(HttpSecurity http) throws Exception {
            http.authorizeRequests()
                    .anyRequest().authenticated() //任何请求,登录后可以访问
                    .and()
                    .formLogin()
                    .loginPage("/login")
                    .failureUrl("/login?error")
                    .permitAll() //登录页面用户任意访问
                    .and()
                    .logout().permitAll(); //注销行为任意访问
            http.addFilterBefore(myFilterSecurityInterceptor, FilterSecurityInterceptor.class);
        }
    }

     

3.2 修改CustomUserService

修改CustomUserService.java 内容如下:

  1. package com.us.example.service;
     
    import com.us.example.dao.PermissionDao;
    import com.us.example.dao.UserDao;
    import com.us.example.domain.Permission;
    import com.us.example.domain.SysRole;
    import com.us.example.domain.SysUser;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.security.core.GrantedAuthority;
    import org.springframework.security.core.authority.SimpleGrantedAuthority;
    import org.springframework.security.core.userdetails.User;
    import org.springframework.security.core.userdetails.UserDetails;
    import org.springframework.security.core.userdetails.UserDetailsService;
    import org.springframework.security.core.userdetails.UsernameNotFoundException;
    import org.springframework.stereotype.Service;
     
    import java.util.ArrayList;
    import java.util.List;
     
    /**
     * Created by yangyibo on 17/1/18.
     */
    @Service
    public class CustomUserService implements UserDetailsService { //自定义UserDetailsService 接口
     
        @Autowired
        UserDao userDao;
        @Autowired
        PermissionDao permissionDao;
     
        public UserDetails loadUserByUsername(String username) {
            SysUser user = userDao.findByUserName(username);
            if (user != null) {
                List<Permission> permissions = permissionDao.findByAdminUserId(user.getId());
                List<GrantedAuthority> grantedAuthorities = new ArrayList <>();
                for (Permission permission : permissions) {
                    if (permission != null && permission.getName()!=null) {
     
                    GrantedAuthority grantedAuthority = new SimpleGrantedAuthority(permission.getName());
                    //1:此处将权限信息添加到 GrantedAuthority 对象中,在后面进行全权限验证时会使用GrantedAuthority 对象。
                    grantedAuthorities.add(grantedAuthority);
                    }
                }
                return new User(user.getUsername(), user.getPassword(), grantedAuthorities);
            } else {
                throw new UsernameNotFoundException("admin: " + username + " do not exist!");
            }
        }
     
    }
    

      

3.3 新增MyAccessDecisionManager

在com.us.example.service 包下新增 
MyAccessDecisionManager.java 文件

  1. package com.us.example.service;
     
    import org.springframework.security.access.AccessDecisionManager;
    import org.springframework.security.access.AccessDeniedException;
    import org.springframework.security.access.ConfigAttribute;
    import org.springframework.security.authentication.InsufficientAuthenticationException;
    import org.springframework.security.core.Authentication;
    import org.springframework.security.core.GrantedAuthority;
    import org.springframework.stereotype.Service;
     
    import java.util.Collection;
    import java.util.Iterator;
     
    /**
     * Created by yangyibo on 17/1/19.
     */
    @Service
    public class MyAccessDecisionManager implements AccessDecisionManager {
     
      // decide 方法是判定是否拥有权限的决策方法,
      //authentication 是释CustomUserService中循环添加到 GrantedAuthority 对象中的权限信息集合.
      //object 包含客户端发起的请求的requset信息,可转换为 HttpServletRequest request = ((FilterInvocation) object).getHttpRequest();
      //configAttributes 为MyInvocationSecurityMetadataSource的getAttributes(Object object)这个方法返回的结果,此方法是为了判定用户请求的url 是否在权限表中,如果在权限表中,则返回给 decide 方法,用来判定用户是否有此权限。如果不在权限表中则放行。
        @Override
        public void decide(Authentication authentication, Object object, Collection<ConfigAttribute> configAttributes) throws AccessDeniedException, InsufficientAuthenticationException {
     
            if(null== configAttributes || configAttributes.size() <=0) {
                return;
            }
            ConfigAttribute c;
            String needRole;
            for(Iterator<ConfigAttribute> iter = configAttributes.iterator(); iter.hasNext(); ) {
                c = iter.next();
                needRole = c.getAttribute();
                for(GrantedAuthority ga : authentication.getAuthorities()) {//authentication 为在注释1 中循环添加到 GrantedAuthority 对象中的权限信息集合
                    if(needRole.trim().equals(ga.getAuthority())) {
                        return;
                    }
                }
            }
            throw new AccessDeniedException("no right");
        }
     
        @Override
        public boolean supports(ConfigAttribute attribute) {
            return true;
        }
     
        @Override
        public boolean supports(Class<?> clazz) {
            return true;
        }
    }

     

3.4 新增 MyFilterSecurityInterceptor

在com.us.example.service 包下新增 
MyFilterSecurityInterceptor.java 文件

  1. package com.us.example.service;
    import javax.servlet.Filter;
    import javax.servlet.FilterChain;
    import javax.servlet.FilterConfig;
    import javax.servlet.ServletException;
    import javax.servlet.ServletRequest;
    import javax.servlet.ServletResponse;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.security.access.SecurityMetadataSource;
    import org.springframework.security.access.intercept.AbstractSecurityInterceptor;
    import org.springframework.security.access.intercept.InterceptorStatusToken;
    import org.springframework.security.web.FilterInvocation;
    import org.springframework.security.web.access.intercept.FilterInvocationSecurityMetadataSource;
    import org.springframework.stereotype.Service;
     
    import java.io.IOException;
     
    /**
     * Created by yangyibo on 17/1/19.
     */
    @Service
    public class MyFilterSecurityInterceptor extends AbstractSecurityInterceptor implements Filter {
     
     
        @Autowired
        private FilterInvocationSecurityMetadataSource securityMetadataSource;
     
        @Autowired
        public void setMyAccessDecisionManager(MyAccessDecisionManager myAccessDecisionManager) {
            super.setAccessDecisionManager(myAccessDecisionManager);
        }
     
     
        @Override
        public void init(FilterConfig filterConfig) throws ServletException {
     
        }
     
        @Override
        public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
     
            FilterInvocation fi = new FilterInvocation(request, response, chain);
            invoke(fi);
        }
     
     
        public void invoke(FilterInvocation fi) throws IOException, ServletException {
    //fi里面有一个被拦截的url
    //里面调用MyInvocationSecurityMetadataSource的getAttributes(Object object)这个方法获取fi对应的所有权限
    //再调用MyAccessDecisionManager的decide方法来校验用户的权限是否足够
            InterceptorStatusToken token = super.beforeInvocation(fi);
            try {
    //执行下一个拦截器
                fi.getChain().doFilter(fi.getRequest(), fi.getResponse());
            } finally {
                super.afterInvocation(token, null);
            }
        }
     
        @Override
        public void destroy() {
     
        }
     
        @Override
        public Class<?> getSecureObjectClass() {
            return FilterInvocation.class;
        }
     
        @Override
        public SecurityMetadataSource obtainSecurityMetadataSource() {
            return this.securityMetadataSource;
        }
    }

     

3.5 新增 MyInvocationSecurityMetadataSourceService

在com.us.example.service 包下新增MyInvocationSecurityMetadataSourceService.java文件

  1. package com.us.example.service;
     
    import com.us.example.dao.PermissionDao;
    import com.us.example.domain.Permission;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.security.access.ConfigAttribute;
    import org.springframework.security.access.SecurityConfig;
    import org.springframework.security.web.FilterInvocation;
    import org.springframework.security.web.access.intercept.FilterInvocationSecurityMetadataSource;
    import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
    import org.springframework.stereotype.Service;
     
    import javax.servlet.http.HttpServletRequest;
    import java.util.*;
     
    /**
     * Created by yangyibo on 17/1/19.
     */
    @Service
    public class MyInvocationSecurityMetadataSourceService  implements
            FilterInvocationSecurityMetadataSource {
     
        @Autowired
        private PermissionDao permissionDao;
     
        private HashMap<String, Collection<ConfigAttribute>> map =null;
     
        /**
         * 加载权限表中所有权限
         */
        public void loadResourceDefine(){
            map = new HashMap<>();
            Collection<ConfigAttribute> array;
            ConfigAttribute cfg;
            List<Permission> permissions = permissionDao.findAll();
            for(Permission permission : permissions) {
                array = new ArrayList<>();
                cfg = new SecurityConfig(permission.getName());
                //此处只添加了用户的名字,其实还可以添加更多权限的信息,例如请求方法到ConfigAttribute的集合中去。此处添加的信息将会作为MyAccessDecisionManager类的decide的第三个参数。
                array.add(cfg);
                //用权限的getUrl() 作为map的key,用ConfigAttribute的集合作为 value,
                map.put(permission.getUrl(), array);
            }
     
        }
     
    //此方法是为了判定用户请求的url 是否在权限表中,如果在权限表中,则返回给 decide 方法,用来判定用户是否有此权限。如果不在权限表中则放行。
        @Override
        public Collection<ConfigAttribute> getAttributes(Object object) throws IllegalArgumentException {
            if(map ==null) loadResourceDefine();
            //object 中包含用户请求的request 信息
            HttpServletRequest request = ((FilterInvocation) object).getHttpRequest();
            AntPathRequestMatcher matcher;
            String resUrl;
            for(Iterator<String> iter = map.keySet().iterator(); iter.hasNext(); ) {
                resUrl = iter.next();
                matcher = new AntPathRequestMatcher(resUrl);
                if(matcher.matches(request)) {
                    return map.get(resUrl);
                }
            }
            return null;
        }
     
        @Override
        public Collection<ConfigAttribute> getAllConfigAttributes() {
            return null;
        }
     
        @Override
        public boolean supports(Class<?> clazz) {
            return true;
        }
    }

     

4:修改home.html 文件

修改src/resources/templates目录下 的home.html

  1. <!DOCTYPE html>
    <html xmlns:th="http://www.thymeleaf.org" 
          xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4">
    <head>
    <meta content="text/html;charset=UTF-8"/>
    <title sec:authentication="name"></title>
    <link rel="stylesheet" th:href="@{css/bootstrap.min.css}" />
    <style type="text/css">
    body {
      padding-top: 50px;
    }
    .starter-template {
      padding: 40px 15px;
      text-align: center;
    }
    </style>
    </head>
    <body>
         <nav class="navbar navbar-inverse navbar-fixed-top">
          <div class="container">
            <div class="navbar-header">
              <a class="navbar-brand" href="#">Spring Security演示</a>
            </div>
            <div id="navbar" class="collapse navbar-collapse">
              <ul class="nav navbar-nav">
               <li><a th:href="@{/}"> 首页 </a></li>
                  <li><a th:href="@{/admin}"> admin </a></li>
              </ul>
            </div><!--/.nav-collapse -->
          </div>
        </nav>
     
     
         <div class="container">
     
          <div class="starter-template">
            <h1 th:text="${msg.title}"></h1>
     
            <p class="bg-primary" th:text="${msg.content}"></p>
     
            <div sec:authorize="hasRole(‘ROLE_HOME‘)"> <!-- 用户类型为ROLE_ADMIN 显示 -->
                <p class="bg-info" th:text="${msg.etraInfo}"></p>
            </div>
              <div sec:authorize="hasRole(‘ROLE_ADMIN‘)"> <!-- 用户类型为ROLE_ADMIN 显示 -->
                  <p class="bg-info">恭喜您,您有 ROLE_ADMIN 权限 </p>
              </div>
     
              <form th:action="@{/logout}" method="post">
                <input type="submit" class="btn btn-primary" value="注销"/>
            </form>
          </div>
     
        </div>
     
     
    </body>
    </html>

     

5:修改HomeController.java 文件

  1. package com.us.example.controller;
     
    import com.us.example.domain.Msg;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.ResponseBody;
     
    /**
     * Created by yangyibo on 17/1/18.
     */
    @Controller
    public class HomeController {
     
        @RequestMapping("/")
        public String index(Model model){
            Msg msg =  new Msg("测试标题","测试内容","欢迎来到HOME页面,您拥有 ROLE_HOME 权限");
            model.addAttribute("msg", msg);
            return "home";
        }
        @RequestMapping("/admin")
        @ResponseBody
        public String hello(){
            return "hello admin";
        }
    }

     

6.测试检验

启动访问 http://localhost:8080/ 到登录页面

  1.  
    由于数据库的配置 admin 用户拥有 访问 home和admin 页面的权限。
  2.  
    abel 用户只有访问 home 的权限
  • 1
  • 2
  • 3

使用admin 登录

技术图片

技术图片

点击 admin 按钮 会反回结果 “hello admin“

使用abel 用户登录 点击 点击 admin 按钮 页面会报403

源码地址:https://github.com/527515025/springBoot

参考资料: 
http://www.tuicool.com/articles/jq6fuur#c-23220 
http://blog.csdn.net/u012367513/article/details/38866465

springBoot+springSecurity 数据库动态管理用户、角色、权限(二)

标签:btn   报错   temp   on()   名称   primary   sheet   ons   src   

原文地址:https://www.cnblogs.com/telwanggs/p/10802809.html

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