一、简介

SpringSecurity是一个功能强大且高度可定制的身份验证和访问控制框架，和spring项目整合更加方便。

二、核心功能

认证(Authentication)：指的是验证某个用户能否访问该系统。
授权(Authorization)：指的是验证某个用户是否有权限执行某个操作。

三、搭建v1.0版本

1、新建一个springboot项目

myspringsecurity

2、添加maven依赖

<dependency>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-starter-security</artifactId>

</dependency>

3、新建一个test的controller

package com.zb.myspringsecurity.controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

@RestController

@RequestMapping("/demo")

public class DemoController {

    @RequestMapping("/hello")

    public String hello() {

        return "hello world";

    }

}

4、启动项目

MyspringsecurityApplication.main();

5、用浏览器测试

http://localhost:8080/demo/hello

我们会发现浏览器会跳转到login页面，如下图

6、密码登陆

我们可以在项目启动日志里面找到密码

2021-07-19 10:58:48.558  INFO 5244 --- [           main] .s.DelegatingFilterProxyRegistrationBean : Mapping filter: 'springSecurityFilterChain' to: [/*]

2021-07-19 10:58:48.558  INFO 5244 --- [           main] o.s.b.w.servlet.ServletRegistrationBean  : Servlet dispatcherServlet mapped to [/]

2021-07-19 10:58:48.684  INFO 5244 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'

2021-07-19 10:58:48.812  INFO 5244 --- [           main] .s.s.UserDetailsServiceAutoConfiguration : 

Using generated security password: ced4127a-1677-438e-a65b-2ab219137083

2021-07-19 10:58:48.868  INFO 5244 --- [           main] o.s.s.web.DefaultSecurityFilterChain     : Creating filter chain: any request, [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter@40021799, org.springframework.security.web.context.SecurityContextPersistenceFilter@2d7e1102, org.springframework.security.web.header.HeaderWriterFilter@3fbfa96, org.springframework.security.web.csrf.CsrfFilter@61533ae, org.springframework.security.web.authentication.logout.LogoutFilter@4a699efa, org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter@4482469c, org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter@4917d36b, org.springframework.security.web.authentication.ui.DefaultLogoutPageGeneratingFilter@4a1c0752, org.springframework.security.web.authentication.www.BasicAuthenticationFilter@278f8425, org.springframework.security.web.savedrequest.RequestCacheAwareFilter@2adddc06, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter@4ebadd3d, org.springframework.security.web.authentication.AnonymousAuthenticationFilter@332f25c8, org.springframework.security.web.session.SessionManagementFilter@466d49f0, org.springframework.security.web.access.ExceptionTranslationFilter@599f571f, org.springframework.security.web.access.intercept.FilterSecurityInterceptor@7004e3d]

2021-07-19 10:58:48.911  INFO 5244 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''

2021-07-19 10:58:48.914  INFO 5244 --- [           main] c.z.m.MyspringsecurityApplication        : Started MyspringsecurityApplication in 1.458 seconds (JVM running for 2.405)

用户名是：user
密码（从日志找到）是：ced4127a-1677-438e-a65b-2ab219137083

登录成功如下图：

二、进阶版v2.0（配置文件配置用户密码）

1、配置文件里面写用户名密码

刚才的密码生成在日志里面了，实际使用很不方便，可以把密码用户名固定配置一下

spring.security.user.name=admin

spring.security.user.password=123

重新启动项目，会发现没有生成密码的日志了
测试用新的用户名密码没问题

三、v3.0（java类里面写用户名密码）

1、在java类里面配置用户名密码

刚才是写在配置文件里面，我们还可以写到java类里面

package com.zb.myspringsecurity.config.security;

import org.springframework.context.annotation.Bean;

import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;

import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;

import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;

import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

import org.springframework.security.crypto.password.PasswordEncoder;

@EnableWebSecurity

public class ZbWebSecurityConfigurer extends WebSecurityConfigurerAdapter {

 @Bean

 PasswordEncoder passwordEncoder() {

    return new BCryptPasswordEncoder();

 }

 public void configure(AuthenticationManagerBuilder auth) throws Exception {

    auth.inMemoryAuthentication()

            .withUser("zhangsan")

            .password(passwordEncoder().encode("123"))

            .roles("ADMIN")

            .and()

            .withUser("lisi")

            .password(passwordEncoder().encode("123"))

            .roles("ADMIN")

            .and()

            .withUser("wangwu")

            .password(passwordEncoder().encode("123"))

            .roles("ADMIN")

            ;

 }

}

我们再重启项目测试一下，发现用三个用户名密码都没问题。

四、v4.0（ignore url）

1、修改上面的java类，增加两个方法

@Override

public void configure(WebSecurity web) throws Exception {

    web.ignoring().antMatchers(

            //"/**/*.html",

            "/**/*.js",

            "/**/*.css",

            "/**/*.ico",

            "/**/*.jpg",

            "/**/*.png",

            "/test/**" // 忽略test

    );

}

@Override

protected void configure(HttpSecurity httpSecurity) throws Exception {

    httpSecurity

            .authorizeRequests()

            .anyRequest().authenticated()

            .and()

            .formLogin()

            .and()

            .httpBasic();

}

我们配置了ignore的url
我们再加一个controller用来测试

package com.zb.myspringsecurity.controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

@RestController

@RequestMapping("/test")

public class TestController {

    @RequestMapping("/test")

    public String hello() {

        return "hello test";

    }

}

注意我们上面的ignore里面有："/test/**"
也就是说TestController 不会有登录校验

重启项目测试一下没问题

五、v5.0（在数据库里面配置用户名密码）

1、新建mysql库



create database myspringsecurity CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci;

create user securityuser IDENTIFIED by 'securitypass';

grant all privileges on myspringsecurity.* to securityuser@localhost identified by 'securitypass';

flush privileges;

2、新建用户表和角色表

DROP TABLE IF EXISTS `tb_user`;

CREATE TABLE `tb_user` (

`id` bigint(20) NOT NULL AUTO_INCREMENT,

`user_name` varchar(50) DEFAULT NULL,

`password` varchar(100) DEFAULT NULL,

`mobile` int(11) DEFAULT NULL,

`sex` int(2) DEFAULT NULL,

`email` varchar(50) DEFAULT NULL,

`status` int(2) DEFAULT NULL,

`create_time` DATE DEFAULT NULL,

`create_id` int(11) DEFAULT NULL,

`update_time` date DEFAULT NULL,

`update_id` int(11) DEFAULT NULL,

PRIMARY KEY (`id`)

) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

DROP TABLE IF EXISTS `tb_role`;

CREATE TABLE `tb_role` (

`id` bigint(20) NOT NULL AUTO_INCREMENT,

`role_name` varchar(50) DEFAULT NULL,

`status` int(2) DEFAULT NULL,

`create_time` DATE DEFAULT NULL,

`create_id` int(11) DEFAULT NULL,

`update_time` date DEFAULT NULL,

`update_id` int(11) DEFAULT NULL,

PRIMARY KEY (`id`)

) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

DROP TABLE IF EXISTS `tr_user_role`;

CREATE TABLE `tr_user_role` (

`id` bigint(20) NOT NULL AUTO_INCREMENT,

`user_id` bigint(20) DEFAULT NULL,

`role_id` bigint(20) DEFAULT NULL,

PRIMARY KEY (`id`)

) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

3、初始化一些数据

insert into `tb_user` (id, user_name, password) values (1, 'zhangsan', '123');

insert into `tb_user` (id, user_name, password) values (2, 'lisi', '123');

insert into `tb_user` (id, user_name, password) values (3, 'wangwu', '123');

insert into `tb_role` (id, role_name) values (1, '系统管理员');

insert into `tb_role` (id, role_name) values (2, '一般操作员');

insert into `tr_user_role` (id, user_id, role_id) values (1, 1, 1);

insert into `tr_user_role` (id, user_id, role_id) values (2, 1, 2);

insert into `tr_user_role` (id, user_id, role_id) values (3, 2, 2);

4、加入maven依赖

我们这里用了mybatis-plus。

<dependency>

    <groupId>mysql</groupId>

    <artifactId>mysql-connector-java</artifactId>

    <version>5.1.44</version>

</dependency>

<dependency>

    <groupId>com.baomidou</groupId>

    <artifactId>mybatis-plus-boot-starter</artifactId>

    <version>3.1.2</version>

</dependency>

5、引入mybatis-plus自动生成代码的依赖

<!-- mybatis-plus代码生成 -->

<dependency>

    <groupId>org.freemarker</groupId>

    <artifactId>freemarker</artifactId>

    <version>2.3.29</version>

</dependency>

<dependency>

    <groupId>com.baomidou</groupId>

    <artifactId>mybatis-plus-generator</artifactId>

    <version>3.1.2</version>

</dependency>

6、修改代码生成类

package com.zb.myspringsecurity.config.mybatis;

import com.baomidou.mybatisplus.core.toolkit.StringPool;

import com.baomidou.mybatisplus.generator.AutoGenerator;

import com.baomidou.mybatisplus.generator.InjectionConfig;

import com.baomidou.mybatisplus.generator.config.*;

import com.baomidou.mybatisplus.generator.config.po.TableInfo;

import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;

import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;

import java.util.ArrayList;

import java.util.List;

public class MybatisGenerator {

    public static void main(String[] args) {

        AutoGenerator mpg = new AutoGenerator();

        // 全局配置

        GlobalConfig gc = new GlobalConfig();

        final String projectPath = System.getProperty("user.dir");

        gc.setOutputDir(projectPath + "/src/main/java");

        gc.setAuthor("system");

        gc.setOpen(false);

        gc.setFileOverride(true);

        gc.setBaseResultMap(true);

        // gc.setSwagger2(true); 实体属性 Swagger2 注解

        mpg.setGlobalConfig(gc);

        // 数据源配置

        DataSourceConfig dsc = new DataSourceConfig();

        dsc.setUrl("jdbc:mysql://127.0.0.1:3306/myspringsecurity?useUnicode=true&useSSL=false&characterEncoding=utf8");

        // dsc.setSchemaName("public");

        dsc.setDriverName("com.mysql.jdbc.Driver");

        dsc.setUsername("securityuser");

        dsc.setPassword("securitypass");

        mpg.setDataSource(dsc);

        // 包配置

        PackageConfig pc = new PackageConfig();

        pc.setParent("com.zb.myspringsecurity");

        mpg.setPackageInfo(pc);

        // 自定义配置

        InjectionConfig cfg = new InjectionConfig() {

            @Override

            public void initMap() {

                // to do nothing

            }

        };

        // 如果模板引擎是 freemarker

        String templatePath = "/templates/mapper.xml.ftl";

        // 如果模板引擎是 velocity

        // String templatePath = "/templates/mapper.xml.vm";

        // 自定义输出配置

        List<FileOutConfig> focList = new ArrayList<>();

        // 自定义配置会被优先输出

        focList.add(new FileOutConfig(templatePath) {

            @Override

            public String outputFile(TableInfo tableInfo) {

                // 自定义输出文件名 ， 如果你 Entity 设置了前后缀、此处注意 xml 的名称会跟着发生变化！！

                return projectPath + "/src/main/resources/mapper/" + tableInfo.getEntityName() + "Mapper" + StringPool.DOT_XML;

            }

        });

        cfg.setFileOutConfigList(focList);

        mpg.setCfg(cfg);

        // 配置模板

        TemplateConfig templateConfig = new TemplateConfig();

        templateConfig.setXml(null);

        mpg.setTemplate(templateConfig);

        // 策略配置

        StrategyConfig strategy = new StrategyConfig();

        strategy.setNaming(NamingStrategy.underline_to_camel);

        strategy.setColumnNaming(NamingStrategy.underline_to_camel);

        // strategy.setSuperEntityClass("com.baomidou.ant.common.BaseEntity");

        strategy.setEntityLombokModel(true);

        strategy.setRestControllerStyle(false);

        // 公共父类

        // strategy.setSuperControllerClass("com.baomidou.ant.common.BaseController");

        // 写于父类中的公共字段

        // strategy.setSuperEntityColumns("id");

        strategy.setInclude("tb_user","tb_role","tr_user_role");

        //  strategy.setControllerMappingHyphenStyle(true);

        strategy.setTablePrefix("tb_", "tr_");

        mpg.setStrategy(strategy);

        mpg.setTemplateEngine(new FreemarkerTemplateEngine());

        mpg.execute();

    }

}

执行生成mapper,service和controller
mybatis准备好了，可以修改security配置了

7、修改configure方法

原先的：

public void configure(AuthenticationManagerBuilder auth) throws Exception {

    auth.inMemoryAuthentication()

            .withUser("zhangsan")

            .password(passwordEncoder().encode("123"))

            .roles("ADMIN")

            .and()

            .withUser("lisi")

            .password(passwordEncoder().encode("123"))

            .roles("ADMIN")

            .and()

            .withUser(passwordEncoder().encode("123"))

            .password("123")

            .roles("ADMIN")

            ;

}

改成新的：

@Autowired

ZxUserDetailsServiceImpl zxUserDetailsService;

public void configure(AuthenticationManagerBuilder auth) throws Exception {

    auth.userDetailsService(zxUserDetailsService);

}

8、新增ZxUserDetailsServiceImpl类

package com.zb.myspringsecurity.config.security;

import com.zb.myspringsecurity.entity.Role;

import com.zb.myspringsecurity.entity.User;

import com.zb.myspringsecurity.entity.UserRole;

import com.zb.myspringsecurity.service.IUserRoleService;

import com.zb.myspringsecurity.service.IUserService;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.security.core.authority.SimpleGrantedAuthority;

import org.springframework.security.core.userdetails.UserDetails;

import org.springframework.security.core.userdetails.UserDetailsService;

import org.springframework.security.core.userdetails.UsernameNotFoundException;

import org.springframework.security.crypto.password.PasswordEncoder;

import org.springframework.stereotype.Component;

import org.springframework.util.Assert;

import org.springframework.util.CollectionUtils;

import java.util.ArrayList;

import java.util.List;

@Component

public class ZxUserDetailsServiceImpl implements UserDetailsService {

    @Autowired

    PasswordEncoder passwordEncoder;

    @Autowired

    IUserService iUserService;

    @Autowired

    IUserRoleService iUserRoleService;

    @Override

    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        /**

         // DEMO:

        List<SimpleGrantedAuthority> authorityList = new ArrayList<>();

        authorityList.add(new SimpleGrantedAuthority("Admin"));

        ZxUser zxUser = new ZxUser();

        zxUser.setUserName("zhangsanfeng");

        zxUser.setPassword(passwordEncoder.encode("123"));

        zxUser.setAuthorities(authorityList);

        return zxUser;

         */

        List<User> userList = iUserService.lambdaQuery().eq(User::getUserName, username).list();

        if (CollectionUtils.isEmpty(userList)) {

            throw new UsernameNotFoundException("不存在的用户");

        }

        User user = userList.get(0);

        ZxUser zxUser = new ZxUser();

        zxUser.setUserName(user.getUserName());

        zxUser.setPassword(passwordEncoder.encode(user.getPassword()));

        zxUser.setId(user.getId());

        List<UserRole> userRoleList = iUserRoleService.lambdaQuery().eq(UserRole::getUserId, zxUser.getId()).list();

        List<SimpleGrantedAuthority> authorityList = new ArrayList<>();

        if (!CollectionUtils.isEmpty(userRoleList)) {

            for (UserRole userRole : userRoleList) {

                authorityList.add(new SimpleGrantedAuthority(String.valueOf(userRole.getRoleId())));

            }

        }

        zxUser.setAuthorities(authorityList);

        return zxUser;

    }

}

9、新增自定义user

package com.zb.myspringsecurity.config.security;

import com.zb.myspringsecurity.entity.User;

import lombok.Data;

import org.springframework.security.core.GrantedAuthority;

import org.springframework.security.core.userdetails.UserDetails;

import java.util.Collection;

@Data

public class ZxUser extends User implements UserDetails {

    private Collection<? extends GrantedAuthority> authorities;

    @Override

    public Collection<? extends GrantedAuthority> getAuthorities() {

        return authorities;

    }

    @Override

    public String getPassword() {

        return super.getPassword();

    }

    @Override

    public String getUsername() {

        return super.getUserName();

    }

    @Override

    public boolean isAccountNonExpired() {

        return true;

    }

    @Override

    public boolean isAccountNonLocked() {

        return true;

    }

    @Override

    public boolean isCredentialsNonExpired() {

        return true;

    }

    @Override

    public boolean isEnabled() {

        return true;

    }

}

10、验证

重启服务，用数据库里面的用户和密码验证没问题。

六、v6.0（实现前后端分离，token校验）

1、引入认证管理器 bean

/**

* 认证管理器

* @return

* @throws Exception

*/

@Bean

@Override

public AuthenticationManager authenticationManagerBean() throws Exception {

    return super.authenticationManagerBean();

}

2、写一个统一的登录接口

package com.zb.myspringsecurity.controller;

import com.zb.myspringsecurity.config.security.ZxUser;

import com.zb.myspringsecurity.config.security.ZxUserDetailsServiceImpl;

import com.zb.myspringsecurity.config.vo.CommonResponse;

import com.zb.myspringsecurity.config.vo.LoginParamVo;

import com.zb.myspringsecurity.config.vo.TokenVo;

import com.zb.myspringsecurity.service.TokenService;

import lombok.extern.slf4j.Slf4j;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.security.authentication.AuthenticationManager;

import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;

import org.springframework.security.core.Authentication;

import org.springframework.security.core.context.SecurityContextHolder;

import org.springframework.web.bind.annotation.RequestBody;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

@Slf4j

@RestController

@RequestMapping("/login")

public class LoginController {

    @Autowired

    private AuthenticationManager authenticationManager;

    @Resource

    ZxUserDetailsServiceImpl userDetailsService;

    @Resource

    TokenService tokenService;

    @RequestMapping("/login-in")

    public CommonResponse<TokenVo> login(@RequestBody LoginParamVo loginParamVo) {

        try {

            // 1 创建UsernamePasswordAuthenticationToken

            UsernamePasswordAuthenticationToken token

                    = new UsernamePasswordAuthenticationToken(loginParamVo.getUsername(), loginParamVo.getPassword());

            // 2 认证

            Authentication authentication = this.authenticationManager.authenticate(token);

            // 3 保存认证信息

            SecurityContextHolder.getContext().setAuthentication(authentication);

            // 4 加载UserDetails

            ZxUser zxUser = this.userDetailsService.loadUserByUsername(loginParamVo.getUsername());

            // 5 生成自定义token

            TokenVo tokenVo = tokenService.createToken(zxUser);

            return CommonResponse.successWithData(tokenVo);

        } catch (Exception e) {

            return CommonResponse.fail(401, e.getMessage());

        }

    }

}

3、tokenservice

package com.zb.myspringsecurity.service;

import com.zb.myspringsecurity.config.vo.TokenVo;

import org.springframework.security.core.userdetails.UserDetails;

public interface TokenService {

    TokenVo createToken(UserDetails details);

    boolean verifyToken(String token);

    String getUserNameByToken(String token);

}

简单的实现：

package com.zb.myspringsecurity.service.impl;

import com.zb.myspringsecurity.config.vo.TokenVo;

import com.zb.myspringsecurity.service.TokenService;

import org.springframework.security.core.userdetails.UserDetails;

import org.springframework.stereotype.Service;

import java.util.HashMap;

import java.util.Map;

import java.util.UUID;

@Service

public class TokenServiceImpl implements TokenService {

    // todo 可以存redis, 设置过期时间

    private static final Map<String, String> tokenMap = new HashMap<>();

    @Override

    public TokenVo createToken(UserDetails details) {

        String token = UUID.randomUUID().toString();

        tokenMap.put(token, details.getUsername());

        TokenVo tokenVo = new TokenVo();

        tokenVo.setToken(token);

        tokenVo.setExpireTime(60*60);

        return tokenVo;

    }

    @Override

    public boolean verifyToken(String token) {

        return tokenMap.get(token) != null;

    }

    @Override

    public String getUserNameByToken(String token) {

        return tokenMap.get(token);

    }

}

创建token, 校验token, 根据token获取username
存的是token和username的关系

4、修改校验方式

修改为：SessionCreationPolicy.STATELESS

@Override

protected void configure(HttpSecurity httpSecurity) throws Exception {

    httpSecurity

            .csrf().disable()

            .sessionManagement()

            .sessionCreationPolicy(SessionCreationPolicy.STATELESS)

            .and()

            .authorizeRequests()

            .anyRequest().authenticated()

            .and()

            .formLogin()

            .and()

            .httpBasic()

            ;

}

5、增加一个校验token的filter

@Autowired

ZbTokenAuthenticationFilter zbTokenAuthenticationFilter;

httpSecurity.addFilterBefore(zbTokenAuthenticationFilter, UsernamePasswordAuthenticationFilter.class);

filter:

package com.zb.myspringsecurity.config.security.customer;

import com.zb.myspringsecurity.config.security.ZxUser;

import com.zb.myspringsecurity.config.security.ZxUserDetailsServiceImpl;

import com.zb.myspringsecurity.service.IUserRoleService;

import com.zb.myspringsecurity.service.TokenService;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;

import org.springframework.security.core.context.SecurityContextHolder;

import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;

import org.springframework.stereotype.Service;

import org.springframework.web.filter.OncePerRequestFilter;

import javax.servlet.FilterChain;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import java.io.IOException;

@Service

public class ZbTokenAuthenticationFilter extends OncePerRequestFilter {

    @Autowired

    TokenService tokenService;

    @Autowired

    IUserRoleService iUserRoleService;

    @Autowired

    ZxUserDetailsServiceImpl userDetailsService;

    @Override

    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {

        logger.info("TokenAuthenticationFilter.doFilterInternal start ...");

        String token = request.getHeader("token");

        if (token == null || "".equals(token)) {

            logger.info("token is null , return .");

            filterChain.doFilter(request, response);

            return;

        }

        if (SecurityContextHolder.getContext().getAuthentication() != null) {

            filterChain.doFilter(request, response);

            return;

        }

       boolean result = tokenService.verifyToken(token);

        if (!result) {

            logger.info("ssoService.verifyToken not pass , return .");

            filterChain.doFilter(request, response);

            return;

        }

        ZxUser zxUser = userDetailsService.loadUserByUsername(tokenService.getUserNameByToken(token));

        UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(

                zxUser, null, zxUser.getAuthorities());

        authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));

        logger.info("token valid pass , username : " + zxUser.getUsername());

        SecurityContextHolder.getContext().setAuthentication(authentication);

        filterChain.doFilter(request, response);

    }

}

至此，我们已经把项目改造成前后端分离的了
有数据库用户密码登录
有登录生成token
有校验url, header必须包含token

七、v7.0（权限控制）

我们上面已经把spring security的一个核心功能（认证）说完了，下面我们说授权。

1、增加权限表，关联表

DROP TABLE IF EXISTS `tb_permission`;

CREATE TABLE `tb_permission` (

`id` bigint(20) NOT NULL AUTO_INCREMENT,

`en_name` varchar(50) DEFAULT NULL,

`cn_name` varchar(50) DEFAULT NULL,

`create_time` DATE DEFAULT NULL,

`create_id` int(11) DEFAULT NULL,

`update_time` date DEFAULT NULL,

`update_id` int(11) DEFAULT NULL,

PRIMARY KEY (`id`)

) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

DROP TABLE IF EXISTS `tr_role_permission`;

CREATE TABLE `tr_role_permission` (

`id` bigint(20) NOT NULL AUTO_INCREMENT,

`role_id` bigint(20) DEFAULT NULL,

`permission_id` bigint(20) DEFAULT NULL,

PRIMARY KEY (`id`)

) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

2、初始化数据



insert into `tb_permission` (id, en_name, cn_name) values (1, 'system:user:read', '可读');

insert into `tb_permission` (id, en_name, cn_name) values (2, 'system:user:edit', '可修改');

insert into `tr_role_permission` (id, role_id, permission_id) values (1, 1, 1);

insert into `tr_role_permission` (id, role_id, permission_id) values (2, 1, 2);

insert into `tr_role_permission` (id, role_id, permission_id) values (3, 2, 1);

3、修改ZxUser

增加permissionSet

@Data

public class ZxUser extends User implements UserDetails {

    ...

    private Set<String> permissionSet;

    ...

}

4、修改loadUserByUsername方法

增加权限查询部分：

@Override

public ZxUser loadUserByUsername(String username) throws UsernameNotFoundException {

    List<User> userList = iUserService.lambdaQuery().eq(User::getUserName, username).list();

    if (CollectionUtils.isEmpty(userList)) {

        throw new UsernameNotFoundException("不存在的用户");

    }

    User user = userList.get(0);

    ZxUser zxUser = new ZxUser();

    zxUser.setUserName(user.getUserName());

    zxUser.setPassword(passwordEncoder.encode(user.getPassword()));

    zxUser.setId(user.getId());

    List<SimpleGrantedAuthority> authorityList = new ArrayList<>();

    // role

    List<UserRole> userRoleList = iUserRoleService.lambdaQuery().eq(UserRole::getUserId, zxUser.getId()).list();

    if (!CollectionUtils.isEmpty(userRoleList)) {

        for (UserRole userRole : userRoleList) {

            authorityList.add(new SimpleGrantedAuthority(String.valueOf(userRole.getRoleId())));

        }

        // permission

        List<Long> roleIdList = userRoleList.stream().map(UserRole::getRoleId).collect(Collectors.toList());

        List<RolePermission> rolePermissionList = iRolePermissionService.lambdaQuery()

                .in(RolePermission::getRoleId, roleIdList).list();

        if (!CollectionUtils.isEmpty(rolePermissionList)) {

            Collection<Permission> permissionList = iPermissionService

                    .listByIds(rolePermissionList.stream()

                            .map(RolePermission::getPermissionId).collect(Collectors.toList()));

            Set<String> permissionSet = permissionList.stream().map(Permission::getEnName).collect(Collectors.toSet());

            zxUser.setPermissionSet(permissionSet);

        }

    }

    zxUser.setAuthorities(authorityList);

    return zxUser;

}

5、我们实现一个自己的权限控制类

package com.zb.myspringsecurity.config.security.customer;

import com.zb.myspringsecurity.config.security.ZxUser;

import lombok.extern.slf4j.Slf4j;

import org.springframework.security.access.PermissionEvaluator;

import org.springframework.security.core.Authentication;

import org.springframework.stereotype.Component;

import java.io.Serializable;

import java.util.Set;

@Slf4j

@Component

public class ZbPermissionEvaluator implements PermissionEvaluator {

    @Override

    public boolean hasPermission(Authentication authentication, Object targetDomainObject, Object permission) {

        ZxUser user = (ZxUser) authentication.getPrincipal();

        Set<String> permissonSet = user.getPermissionSet();

        if (permission == null) {

            log.info("permission valid not pass , permission is null");

            return false;

        }

        if (permissonSet.contains(permission.toString())) {

            log.info("permission valid pass , permission : {}", permission.toString());

            return true;

        }

        log.info("permission valid not pass , permission : {}", permission.toString());

        return false;

    }

    @Override

    public boolean hasPermission(Authentication authentication, Serializable targetId, String targetType, Object permission) {

        return false;

    }

}

很简单，就是判断权限集合存不存在当前权限

6、配置使之生效



@Autowired

ZbPermissionEvaluator zbPermissionEvaluator;

@Bean

public DefaultWebSecurityExpressionHandler defaultWebSecurityExpressionHandler() {

    DefaultWebSecurityExpressionHandler defaultWebSecurityExpressionHandler = new DefaultWebSecurityExpressionHandler();

    defaultWebSecurityExpressionHandler.setPermissionEvaluator(zbPermissionEvaluator);

    return defaultWebSecurityExpressionHandler;

}

@Override

protected void configure(HttpSecurity httpSecurity) throws Exception {

    ...

    httpSecurity.authorizeRequests().expressionHandler(defaultWebSecurityExpressionHandler());

    ...

}

7、测试类

package com.zb.myspringsecurity.controller;

import com.zb.myspringsecurity.entity.User;

import com.zb.myspringsecurity.service.IUserService;

import lombok.extern.slf4j.Slf4j;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.security.access.prepost.PreAuthorize;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;

import java.util.List;

@Slf4j

@RestController

@RequestMapping("/user")

public class UserController {

    @Autowired

    IUserService iUserService;

    @PreAuthorize("hasPermission('UserController', 'system:user:read')")

    @RequestMapping("/list")

    public List<User> list(HttpServletRequest request) {

        log.info("session id: {}" , request.getSession().getId());

        return iUserService.list();

    }

}

8、启动服务测试

注意:我们上面的/user/list, 配置了'system:user:read'权限
仔细去看我们初始化的数据库数据，会发现wangwu是没有任何角色的，也没有任何权限
所以，wangwu 不能访问/user/list

先测试zhangsan:

POST http://localhost:8080/login/login-in

Accept: */*

Cache-Control: no-cache

content-type:application/json

{"username":"zhangsan", "password":"123"}

{

  "data": {

    "token": "e048ba23-7061-43d6-ab35-7c2eb93acda8",

    "expireTime": 3600

  },

  "code": 200,

  "msg": "ok"

}

用这个token去请求/user/list



GET http://localhost:8080/user/list

Accept: application/json

token: e048ba23-7061-43d6-ab35-7c2eb93acda8

[

  {

    "id": 1,

    "userName": "zhangsan",

    "password": "123",

    "mobile": null,

    "sex": null,

    "email": null,

    "status": null,

    "createTime": null,

    "createId": null,

    "updateTime": null,

    "updateId": null

  },

  {

    "id": 2,

    "userName": "lisi",

    "password": "123",

    "mobile": null,

    "sex": null,

    "email": null,

    "status": null,

    "createTime": null,

    "createId": null,

    "updateTime": null,

    "updateId": null

  },

  {

    "id": 3,

    "userName": "wangwu",

    "password": "123",

    "mobile": null,

    "sex": null,

    "email": null,

    "status": null,

    "createTime": null,

    "createId": null,

    "updateTime": null,

    "updateId": null

  }

]

用同样的方法测试lisi和wangwu，lisi可以访问，wangwu不可以，返回如下

{

  "timestamp": "2021-07-19T06:53:38.833+0000",

  "status": 500,

  "error": "Internal Server Error",

  "message": "No message available",

  "path": "/user/list"

}

当然你还可以统一你的异常回复信息，可以自行研究
至此，我们的权限控制也实现了

八、总结

至此，我们的认证和鉴权都说完了
以上只是一种实现，spring security支持自定义扩展，还有其它实现方式，可以自己研究
代码放到github上了，关注公众号：丰极，回复：myspringsecurity获取

欢迎关注微信公众号：丰极，更多技术学习分享。

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