《代码实例》jwt参与用户凭证方式，生成jwt，security整合jwt

config
CorsConfig.java

package com.woniu.springsecurityday01.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class CorsConfig implements WebMvcConfigurer {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        // 设置允许跨域的路径
        registry.addMapping("/**")
                // 设置允许跨域请求的域名
                .allowedOriginPatterns("*")
                // 是否允许cookie
                .allowCredentials(false)
                // 设置允许的请求方式
                .allowedMethods("GET", "POST", "DELETE", "PUT")
                // 设置允许的header属性
                .allowedHeaders("*")
                // 跨域允许时间
                .maxAge(3600);
    }

}

SecurityConfig.java

package com.woniu.springsecurityday01.config;

import com.woniu.springsecurityday01.dao.UserDao;
import com.woniu.springsecurityday01.handler.*;
import com.woniu.springsecurityday01.service.SecurityService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
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.config.annotation.web.configurers.ExpressionUrlAuthorizationConfigurer;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

@EnableWebSecurity
@EnableGlobalMethodSecurity(securedEnabled = true,jsr250Enabled = true,prePostEnabled=true)//作用：开启注解式鉴权
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private SecurityService securityService;

    @Autowired
    private LoginSuccessHandler loginSuccessHandler;

    @Autowired
    private JWTFilter jwtFilter;

    /**
     * 认证
     * @param auth
     * @throws Exception
     */
    @Override
    public void configure(AuthenticationManagerBuilder auth) throws Exception {
        //BCryptPasswordEncoder passwordEncoder=new BCryptPasswordEncoder();
        //String encode=passwordEncoder.encode("123");
        //自定义用户名和密码
       // auth.inMemoryAuthentication().withUser("admin").password(encode).roles("admin");
        auth.userDetailsService(securityService);
    }

    /**
     * 自定义登录页面
     * @param http
     * @throws Exception
     */
    @Override
    public void configure(HttpSecurity http) throws Exception {
        http.formLogin() //告诉框架自定义页面
                .loginPage("/login.html") //登录页面地址
                .loginProcessingUrl("/dologin")//对应表单提交的action
                .successHandler(loginSuccessHandler)
                .failureHandler(new LoginFailHandler())
                .permitAll();//对上面两个请求放行
        //1.无权限2.未登录而登录
        http.exceptionHandling()
                .accessDeniedHandler(new NOAuthHandler())
                .authenticationEntryPoint(new NoLoginHandler());
        /**
         * 授权
         */
        http.authorizeRequests()
                //.antMatchers("/hello").hasAuthority("stu:query")
                //.antMatchers("/delete").hasAuthority("stu:query")
                //.antMatchers("/hello").hasAnyAuthority("stu:query","hello")
                //.antMatchers("/hello").hasRole("stu:query")
                //.antMatchers("/delete").permitAll() //配置免拦截方法

                .anyRequest().authenticated();//所有请求都拦截
        /**
         * 把jwtfilter注入进来
         */
        http.addFilterAfter(jwtFilter, UsernamePasswordAuthenticationFilter.class);

        /**
         * 把session禁掉
         */
        http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);

        //跨站脚本攻击关闭
        http.csrf().disable();

        //允许跨域请求
        http.cors();

    }

    @Bean
    public PasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }
}

controller
HelloController.java

package com.woniu.springsecurityday01.controller;

import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
/**
 * @RequestBody+@Controller=@RestController
 */
public class HelloController {


    //@Secured("ROLE_stu:query")
    //@PermitAll()
    @PreAuthorize("hasAuthority('stu:query')")
    @RequestMapping("/hello")
    public String hello(){
        return "hello security";
    }

    @RequestMapping("/delete")
    public String delete(){
        return "hello delete";
    }


}

dao
UserDao.java

package com.woniu.springsecurityday01.dao;

import com.woniu.springsecurityday01.domain.Users;
import org.springframework.stereotype.Repository;

@Repository
public interface UserDao {
    /**
     * 根据账号查用户信息及其权限
     */
    Users getUserInfoByAccount(String account);
}

domain
Users.java

package com.woniu.springsecurityday01.domain;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.util.List;
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Users {

    private Integer id;

    private String username;

    private String account;

    private String password;

    private List<String> anth;//该用户拥有的权限
}

handler
JWTFilter.java

package com.woniu.springsecurityday01.handler;

import com.woniu.springsecurityday01.service.SecurityService;
import com.woniu.springsecurityday01.util.JWTUtil;
import lombok.SneakyThrows;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.stereotype.Component;
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;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * 校验jwt
 *
 * 1:判断请求是否携带jwt
 *  否：放行不处理
 *  是：走到第二步
 * 2：对前端传过来的jwt解密
 *  否：放行不处理
 *  是：走到第三步
 * 3: 获取redis的jwt
 *  获取不到：放行不处理
 *  获取到：走到第四步
 * 4：对比jwt
 *  否：放行不处理
 *  是：走到第五步
 * 5：给jwt续期
 *
 */
@Component
public class JWTFilter extends OncePerRequestFilter {
    /**
     * StringRedisTemplate和RedisTemplate区别
     */
    @Autowired
    private StringRedisTemplate redisTemplate;
    @Autowired
    private SecurityService securityService;
    @SneakyThrows
    @Override
    protected void doFilterInternal(HttpServletRequest request,
                                    HttpServletResponse response,
                                    FilterChain filterChain)
            throws ServletException, IOException {
        /**
         * * 1:判断请求是否携带jwt
         *  *  否：放行不处理
         *  *  是：走到第二步
         */
        String jwt=request.getHeader("jwt");
        if(jwt==null){
            //交给下一个过滤器处理
            filterChain.doFilter(request,response);
            return;
        }

        /**
         * 2：对前端传过来的jwt解密
         *  *  否：放行不处理
         *  *  是：走到第三步
         */
        if(!JWTUtil.decode(jwt)){
            filterChain.doFilter(request,response);
            return;
        }
        /**
         * 3: 获取redis的jwt
         *  *  获取不到：放行不处理
         *  *  获取到：走到第四步
         */
        Map payLoad = JWTUtil.getPayLoad(jwt);
        String username=(String)payLoad.get("username");
        String redisJwt = redisTemplate.opsForValue().get("jwt:" + username);
        if(redisJwt==null){
            filterChain.doFilter(request,response);
            return;
        }
        /**
         * 4：对比jwt
         *  *  否：放行不处理
         *  *  是：走到第五步
         */
        if(!jwt.equals(redisJwt)){
            filterChain.doFilter(request,response);
            return;
        }
        /**
         * 5：给jwt续期
         */
        redisTemplate.opsForValue().set("jwt:"+ username,jwt,30, TimeUnit.MINUTES);

        //把用户信息放到security容器中去
        UserDetails userDetails = securityService.loadUserByUsername(username);
        UsernamePasswordAuthenticationToken upa=
                new UsernamePasswordAuthenticationToken(userDetails.getUsername(),
                                                        userDetails.getPassword(),
                                                        userDetails.getAuthorities());
        //把信息放到security容器中去
        SecurityContextHolder.getContext().setAuthentication(upa);

        filterChain.doFilter(request,response);

    }
}

LoginSuccessHandler.java

package com.woniu.springsecurityday01.handler;

import com.alibaba.fastjson.JSON;
import com.woniu.springsecurityday01.util.JWTUtil;
import com.woniu.springsecurityday01.util.ResponseResult;
import lombok.SneakyThrows;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * 登录成功处理器
 */
@Component
public class LoginSuccessHandler implements AuthenticationSuccessHandler {

    @Autowired
    private StringRedisTemplate redisTemplate;

    @SneakyThrows
    @Override
    public void onAuthenticationSuccess(HttpServletRequest httpServletRequest,
                                        HttpServletResponse httpServletResponse,
                                        Authentication authentication)
            throws IOException, ServletException {

        httpServletResponse.setContentType("application/json;charset=UTF-8");

        User user=(User) authentication.getPrincipal();
        String username= user.getUsername();
        Map map=new HashMap();
        map.put("username",username);
        String jwt= JWTUtil.createJWT(map);
        //拿jwt干那些事情? 1:放到redis,2:把jwt传到前端
        redisTemplate.opsForValue().set("jwt:"+username,jwt,30, TimeUnit.MINUTES);


        httpServletResponse.getWriter().write(JSON.toJSONString( new ResponseResult().ok(jwt)));

    }
}

其他几个认证同上篇

service
SecurityService.java

package com.woniu.springsecurityday01.service;

import com.woniu.springsecurityday01.dao.UserDao;
import com.woniu.springsecurityday01.domain.Users;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.authority.AuthorityUtils;
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.security.crypto.password.PasswordEncoder;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class SecurityService implements UserDetailsService {
    @Autowired
    private PasswordEncoder passwordEncoder;
    @Autowired
    private UserDao userDao;
    /**
     * username：页面传过来的用户名
     * @param username
     * @return
     * @throws UsernameNotFoundException
     */
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        Users userInfo=userDao.getUserInfoByAccount(username);
        if(userInfo!=null){
            String join =String.join(",",userInfo.getAnth());//集合以
            //根据username 去数据库查该用户信息
            return new User(userInfo.getAccount(),passwordEncoder.encode(userInfo.getPassword()), AuthorityUtils.commaSeparatedStringToAuthorityList(join));

        }else {
            throw new UsernameNotFoundException("用户不存在");
        }

    }
}

util
JWTUtil.java

package com.woniu.springsecurityday01.util;

import com.nimbusds.jose.*;
import com.nimbusds.jose.crypto.MACSigner;
import com.nimbusds.jose.crypto.MACVerifier;

import java.text.ParseException;
import java.util.HashMap;
import java.util.Map;

/**
 * jwt 工具类
 * 1.创建jwt
 * 2.解密jwt
 */
public class JWTUtil {

    private static  final String KEY="kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk";



    public static String createJWT(Map map) throws JOSEException{
        //第一部分：头部，主要放jwt自我描述部分，比如加密方式
        JWSHeader header=new JWSHeader.Builder(JWSAlgorithm.HS256)
                .type(JOSEObjectType.JWT).build();


        //第二部分：载荷部分，主要放用户登录成功后，一些个人信息（注意：不要放敏感信息）
        Payload payload=new Payload(map);

        //第三部分：签名部分，（头部+载荷）通过一个密钥加密后得到的
        JWSObject jwsObject=new JWSObject(header,payload);
        JWSSigner jwsSigner=new MACSigner(KEY);
        //拿到密钥加密
        jwsObject.sign(jwsSigner);
        return jwsObject.serialize();

    }

    public static boolean decode(String jwt) throws ParseException, JOSEException {
        //parse()把字符串转换一个对象
        JWSObject jwsObject= JWSObject.parse(jwt);
        JWSVerifier jwsVerifier=new MACVerifier(KEY);
        //解密方法verify()
        return jwsObject.verify(jwsVerifier);
    }

    /**
     * 根据jwt获取其中的载荷部分
     * @param jwt
     * @return
     */
    public static Map getPayLoad(String jwt) throws ParseException {
        //parse()把字符串转换一个对象
        JWSObject jwsObject= JWSObject.parse(jwt);
        Payload payload = jwsObject.getPayload();
        Map<String, Object> map = payload.toJSONObject();
        return map;

    }

}

ResponseEnum.java

package com.woniu.springsecurityday01.util;

public enum ResponseEnum {

    LOGIN_SUCCESS(200,"okkk"),
    LOGIN_FAIL(500,"faill"),
    NO_LOGIN(20001,"NOLOGIN"),
    NO_AUTH(5000,"NOAUTH")

    ;

    private Integer code;

    private String msg;

    ResponseEnum(Integer code, String msg) {
        this.code = code;
        this.msg = msg;
    }

    ResponseEnum() {
    }


    public Integer getCode() {
        return code;
    }

    public void setCode(Integer code) {
        this.code = code;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }
}

ResponseResult.java

package com.woniu.springsecurityday01.util;

import lombok.Data;
import lombok.NoArgsConstructor;

@NoArgsConstructor
@Data
public class ResponseResult<T> {

    private Integer code;

    private String msg;

    private T data;

    public ResponseResult<T> ok(T t){
        return new ResponseResult(ResponseEnum.LOGIN_SUCCESS.getCode(),t);
    }

    public static final ResponseResult<Void> LOGIN_SUCCESS=
            new ResponseResult(ResponseEnum.LOGIN_SUCCESS.getCode(),
                    ResponseEnum.LOGIN_SUCCESS.getMsg());

    public static final ResponseResult<Void> LOGIN_FAIL=
            new ResponseResult(ResponseEnum.LOGIN_FAIL.getCode(),
                    ResponseEnum.LOGIN_FAIL.getMsg());

    public static final ResponseResult<Void> NO_LOGIN=
            new ResponseResult(ResponseEnum.NO_LOGIN.getCode(),
                    ResponseEnum.NO_LOGIN.getMsg());

    public static final ResponseResult<Void> NO_AUTH=
            new ResponseResult(ResponseEnum.NO_AUTH.getCode(),
                    ResponseEnum.NO_AUTH.getMsg());

    public ResponseResult(Integer code, T data) {
        this.code = code;
        this.data = data;
    }

    public ResponseResult(Integer code, String msg) {
        this.code = code;
        this.msg = msg;
    }


}

TestJWT.java

package com.woniu.springsecurityday01.util;

import com.nimbusds.jose.*;
import com.nimbusds.jose.crypto.MACSigner;
import com.nimbusds.jose.crypto.MACVerifier;

import java.text.ParseException;
import java.util.HashMap;
import java.util.Map;

public class TestJWT {
    private static  final String KEY="kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk";
    public static void main(String[] args) throws Exception{
        Map map1=new HashMap();
        map1.put("username","admin");
        String jwt=JWTUtil.createJWT(map1);

        Map payload1=JWTUtil.getPayLoad(jwt);
        System.out.println(payload1.get("username"));

        //第一部分：头部，主要放jwt自我描述部分，比如加密方式
        JWSHeader header=new JWSHeader.Builder(JWSAlgorithm.HS256)
                .type(JOSEObjectType.JWT).build();

        System.out.println(header.toBase64URL());
        //第二部分：载荷部分，主要放用户登录成功后，一些个人信息（注意：不要放敏感信息）
        Map map=new HashMap();
        map.put("username","admin");
        map.put("gender","男");
        Payload payload=new Payload(map);
        System.out.println(payload.toBase64URL());
        //第三部分：签名部分，（头部+载荷）通过一个密钥加密后得到的
        JWSObject jwsObject=new JWSObject(header,payload);

        JWSSigner jwsSigner=new MACSigner(KEY);
        //拿到密钥加密
        jwsObject.sign(jwsSigner);
        System.out.println(jwsObject.serialize());
        //看看能不能解密
        String sigin="eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJnZW5kZXIiOiLnlLciLCJ1c2VybmFtZSI6ImFkbWluIn0.a3N4ec6XYQjDwrf5SykTVBPZF1NmIWdIwZT4hxia8sU";
        System.out.println(decode(sigin));

    }

    /**
     * 拿到jwt根据系统的密码，看能不能解开
     * @return
     */
    public static boolean decode(String jwt) throws ParseException, JOSEException {
        //parse()把字符串转换一个对象
    JWSObject jwsObject= JWSObject.parse(jwt);
    JWSVerifier jwsVerifier=new MACVerifier(KEY);
    //解密方法verify()
    return jwsObject.verify(jwsVerifier);
    }
}

启动类
Springsecurityday01Application.java

package com.woniu.springsecurityday01;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
@MapperScan("com.woniu.springsecurityday01.dao")
public class Springsecurityday01Application {

    public static void main(String[] args) {
        SpringApplication.run(Springsecurityday01Application.class, args);
    }

}

UserDao.xml

<?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.woniu.springsecurityday01.dao.UserDao">
        <resultMap id="userMap" type="com.woniu.springsecurityday01.domain.Users">
            <result property="id" column="id"></result>
            <result property="username" column="username"></result>
            <result property="account" column="account"></result>
            <result property="password" column="password"></result>

            <collection property="anth" ofType="java.lang.String">
                <result column="anth_code"></result>

            </collection>

        </resultMap>


        <select id="getUserInfoByAccount" resultMap="userMap">
            SELECT
            us.id,
            us.username,
            us.account,
            us.password,
            ta.anth_code
            FROM
            users  us
            left join t_user_anth tua on us.id=tua.user_id
            left join t_anth ta on tua.anth_id=ta.id

            WHERE account=#{account}



        </select>
</mapper>

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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.5.4</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.woniu</groupId>
    <artifactId>springsecurityday01</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springsecurityday01</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!--springboot整合security坐标-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>

        <!-- mysql-connector -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.32</version>
        </dependency>
        <!-- mybatis-plus -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.5.1</version>
        </dependency>
        <!--mybatis -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.2.0</version>
        </dependency>
        <!--json-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>2.0.12</version>
        </dependency>
        <!--  jwt -->
        <dependency>
            <groupId>com.nimbusds</groupId>
            <artifactId>nimbus-jose-jwt</artifactId>
            <version>9.11.1</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
            <exclusions><!-- 从依赖关系中排除 -->
                <exclusion>
                    <groupId>io.lettuce</groupId>
                    <artifactId>lettuce-core</artifactId>
                </exclusion>
            </exclusions>

        </dependency>

        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>