SpringSecurity实现动态url拦截(基于rbac模型)-编程学习网

1、了解主要的过滤器

1、SecurityMetadataSource

权限资源拦截器。

有一个接口继承与它FilterInvocationSecurityMetadataSource，但FilterInvocationSecurityMetadataSource只是一个标识接口，
对应于FilterInvocation，本身并无任何内容：

主要方法：


    public Collection<ConfigAttribute> getAttributes(Object object) throws IllegalArgumentException {
     
    }

每一次请求url，都会调用这个方法。object存储了请求的信息。如;rul

2、UserDetailsService

用户登录，会先调用这里面的 loadUserByUsername。通过用户名去查询用户是否存在数据库。

在这里面进行查询，获得用户权限信息

3、AccessDecisionManager

里面的decide方法。


// decide 方法是判定是否拥有权限的决策方法，
    //authentication 是释UserService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 o, Collection<ConfigAttribute> configAttributes)

2、正式实战了

1 使用idea的Srping Initializr 创建一个项目我的版本如下Pom.xml


<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>demo</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.9.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>


    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <maven.compiler.target>1.8</maven.compiler.target>
        <maven.compiler.source>1.8</maven.compiler.source>
        <mybatis.version>3.2.7</mybatis.version>
        <mybatis-spring.version>1.2.2</mybatis-spring.version>
    </properties>



    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!--提供security相关标签,可选可不选-->
        <dependency>
            <groupId>org.thymeleaf.extras</groupId>
            <artifactId>thymeleaf-extras-springsecurity4</artifactId>
        </dependency>
        <!--bootstrap组件,可选可不选-->
        <dependency>
            <groupId>org.webjars</groupId>
            <artifactId>bootstrap</artifactId>
            <version>3.3.7</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.6</version>
        </dependency>

        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
            <exclusions>
                <exclusion>
                    <groupId>commons-logging</groupId>
                    <artifactId>commons-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <!--mybatis-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${mybatis.version}</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>${mybatis-spring.version}</version>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

2，创建一个springSecurity配置类，你也可以使用配置文件的方法。我这里使用了boot的配置类


package com.example.config;

import com.example.service.CustomUserService;
import com.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.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.web.access.intercept.FilterSecurityInterceptor;


@Configuration  //声明为配置类
@EnableWebSecurity  //这里启动security
public class SpringSecurityConfig extends WebSecurityConfigurerAdapter{

    @Autowired  //下面会编写这个类
    private MyFilterSecurityInterceptor myFilterSecurityInterceptor;

    @Autowired   //下面会编写这个类
    private DefaultAccessDeniedHandler defaultAccessDeniedHandler;

    @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.exceptionHandling()
                .accessDeniedHandler(defaultAccessDeniedHandler);
        http.authorizeRequests()
                .antMatchers("/css
@Service
public class MyInvocationSecurityMetadataSourceService  implements
        FilterInvocationSecurityMetadataSource {


    private HashMap<String, Collection<ConfigAttribute>> map =null;

    @Autowired
    private PermissionDao permissionDao;

    
    public void loadResourceDefine(){
        map = new HashMap<>();
        Collection<ConfigAttribute> array;
        ConfigAttribute cfg;
        //去数据库查询 使用dao层。 你使用自己的即可
        List<Permission> permissions = permissionDao.findAll();
        for(Permission permission : permissions) {
            array = new ArrayList<>();
            //下面你可以添加你想要比较的信息过去。 注意的是，需要在用户登录时存储的权限信息一致
            cfg = new SecurityConfig(permission.getName());
            //此处添加了资源菜单的名字，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 {
        FilterInvocation filterInvocation = (FilterInvocation) object;
        String fullRequestUrl = filterInvocation.getFullRequestUrl();
        //若是静态资源 不做拦截  下面写了单独判断静态资源方法
        if (isMatcherAllowedRequest(filterInvocation)) {
            System.out.println("我没有被拦截"+fullRequestUrl);
           return null;
        }
        //map 为null 就去数据库查
        if(map ==null)  {
         loadResourceDefine();
        }
        //测试 先每次都查
        //object 中包含用户请求的request 信息


        HttpServletRequest request = filterInvocation.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;
    }


    
    private boolean isMatcherAllowedRequest(FilterInvocation fi){
        return allowedRequest().stream().map(AntPathRequestMatcher::new)
                .filter(requestMatcher -> requestMatcher.matches(fi.getHttpRequest()))
                .toArray().length > 0;
    }

    
    private List<String> allowedRequest(){
        return Arrays.asList("/login","/css
@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);
        for (SysRole role : user.getRoles()) {
            System.out.println(role.getName());
        }
        if (user != null) {
            //根据用户id 去查找用户拥有的资源
            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!");
        }
    }

}

自定义AccessDecisionManager


package com.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;

@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 o, 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 configAttribute) {
        return true;
    }

    @Override
    public boolean supports(Class<?> aClass) {
        return true;
    }
}

自定义拦截器


package com.example.service;

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 javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import java.io.IOException;


@Service
public class MyFilterSecurityInterceptor extends AbstractSecurityInterceptor implements Filter {

    @Autowired
    private FilterInvocationSecurityMetadataSource securityMetadataSource;

    @Autowired
    private void setMyAccessDecisionManager(MyAccessDecisionManager myAccessDecisionManager) {
        super.setAccessDecisionManager(myAccessDecisionManager);
    }


    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }


    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        FilterInvocation fi = new FilterInvocation(servletRequest, servletResponse, filterChain);
        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;
    }
}

运行项目就实现了。去试试吧。
记得将自定义拦截器放进security的过滤器链中。

到此这篇关于SpringSecurity实现动态url拦截(基于rbac模型)的文章就介绍到这了,更多相关SpringSecurity 动态url拦截内容请搜索编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程网！

文章详情

SpringSecurity实现动态url拦截(基于rbac模型)

目录

1、了解主要的过滤器

1、SecurityMetadataSource

2、UserDetailsService

3、AccessDecisionManager

2、正式实战了

1 使用idea的Srping Initializr 创建一个项目我的版本如下Pom.xml

2，创建一个springSecurity配置类，你也可以使用配置文件的方法。我这里使用了boot的配置类

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文章详情

SpringSecurity实现动态url拦截(基于rbac模型)

目录

1、了解主要的过滤器

1、SecurityMetadataSource

2、UserDetailsService

3、AccessDecisionManager

2、正式实战了

1 使用idea的Srping Initializr 创建一个项目 我的版本如下Pom.xml

2，创建一个springSecurity配置类，你也可以使用配置文件的方法。我这里使用了boot的配置类

软考中级精品资料免费领

相关文章

猜你喜欢

SpringSecurity实现动态url拦截(基于rbac模型)

如何实现基于input动态模糊查询

Spring Security实现基于RBAC的权限表达式动态访问控制的操作方法

C++并发编程：如何实现基于事件驱动的并发模型？

1 使用idea的Srping Initializr 创建一个项目我的版本如下Pom.xml