shiro、jwt、redis整合

一、步骤

1.导入坐标

    org.crazycake
    shiro-redis-spring-boot-starter
    3.2.1

 
 
     io.JSONWEBtoken
     jjwt
     0.9.1

2.编写ShiroConfig

目的：实现session共享

session共享

HTTP协议(1.1)是无状态的，所以服务器在需要识别用户访问的时候，就要做相应的记录用于跟踪用户操作，这个实现机制就是Session。当一个用户第一次访问服务器的时候，服务器就会为用户创建一个Session，每个Session都有一个唯一的SessionId(应用级别)用于标识用户。

因此要使用shiro继承redis

使用redis管理session能够方便的实现session集群，并且在服务重启（或服务器重启）时不会丢失session。

package com.gyb.config;

import com.gyb.shiro.AccountRealm;
import com.gyb.shiro.JwtFilter;
import org.apache.shiro.mgt.SecurityManager;
import org.apache.shiro.session.mgt.SessionManager;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.spring.web.config.DefaultShiroFilterChainDefinition;
import org.apache.shiro.spring.web.config.ShiroFilterChainDefinition;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.apache.shiro.web.session.mgt.DefaultWebSessionManager;
import org.crazycake.shiro.RedisCacheManager;
import org.crazycake.shiro.RedisSessionDAO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.servlet.Filter;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;

@Configuration
public class ShiroConfig {

    @Autowired
    JwtFilter jwtFilter;

    @Bean
    public SessionManager sessionManager(RedisSessionDAO redisSessionDAO) {
        DefaultWebSessionManager sessionManager = new DefaultWebSessionManager();

        sessionManager.setSessionDAO(redisSessionDAO);
        return sessionManager;
    }

    @Bean
    public DefaultWebSecurityManager securityManager(AccountRealm accountRealm,
                                                   SessionManager sessionManager,
                                                   RedisCacheManager redisCacheManager) {

        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager(accountRealm);

        securityManager.setSessionManager(sessionManager);

        securityManager.setCacheManager(redisCacheManager);
        return securityManager;
    }

    @Bean
    public ShiroFilterChainDefinition shiroFilterChainDefinition() {
        DefaultShiroFilterChainDefinition chainDefinition = new DefaultShiroFilterChainDefinition();

        Map filterMap = new LinkedHashMap<>();

        //将所有的过滤交给自定义的jwt来做
        filterMap.put("
@Configuration
public class CorsConfig implements WebmvcConfigurer {

    @Override
    public void addCorsMappings(CorsReGIStry registry) {
        registry.addMapping("
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        return null;
    }

    
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {

        JwtToken jwtToken = (JwtToken) token;

        String userId = jwtUtils.getClaimByToken((String) jwtToken.getPrincipal()).getSubject();

        User user = userService.getById(Long.valueOf(userId));
        if (user == null) {
            throw new UnknownAccountException("账户不存在");
        }

        if (user.getStatus() == -1) {
            throw new LockedAccountException("账户已被锁定");
        }

        AccountProfile profile = new AccountProfile();
        BeanUtil.copyProperties(user, profile);

        return new SimpleAuthenticationInfo(profile, jwtToken.getCredentials(), getName());
    }
}

4.3 创建JwtFifter类

package com.gyb.shiro;

import cn.hutool.json.JSONUtil;
import com.gyb.common.lang.Result;
import com.gyb.util.JwtUtils;
import io.jsonwebtoken.Claims;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.ExpiredCredentialsException;
import org.apache.shiro.web.filter.authc.AuthenticatingFilter;
import org.apache.shiro.web.util.WebUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMethod;

import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.Http.httpservletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@Component
public class JwtFilter extends AuthenticatingFilter {

    @Autowired
    JwtUtils jwtUtils;

    @Override
    protected AuthenticationToken createToken(ServletRequest servletRequest, ServletResponse servletResponse) throws Exception {

        HttpServletRequest request = (HttpServletRequest) servletRequest;
        String jwt = request.getHeader("Authorization");
        if(!StringUtils.hasLength(jwt) ) {
            return null;
        }

        return new JwtToken(jwt);
    }

    @Override
    protected boolean onAccessDenied(ServletRequest servletRequest, ServletResponse servletResponse) throws Exception {

        HttpServletRequest request = (HttpServletRequest) servletRequest;
        String jwt = request.getHeader("Authorization");
        if(!StringUtils.hasLength(jwt)) {
            return true;
        } else {

            // 校验jwt
            Claims claim = jwtUtils.getClaimByToken(jwt);
            if(claim == null || jwtUtils.isTokenExpired(claim.getExpiration())) {
                throw new ExpiredCredentialsException("token已失效，请重新登录");
            }

            // 执行登录
            return executeLogin(servletRequest, servletResponse);
        }
    }

    @Override
    protected boolean onLoginFailure(AuthenticationToken token, AuthenticationException e, ServletRequest request, ServletResponse response) {

        HttpServletResponse httpServletResponse = (HttpServletResponse) response;

        Throwable throwable = e.getCause() == null ? e : e.getCause();
        Result result = Result.fail(throwable.getMessage());
        String json = JSONUtil.toJsonStr(result);

        try {
            httpServletResponse.getWriter().print(json);
        } catch (IOException ioException) {

        }
        return false;
    }

    @Override
    protected boolean preHandle(ServletRequest request, ServletResponse response) throws Exception {

        HttpServletRequest httpServletRequest = WebUtils.toHttp(request);
        HttpServletResponse httpServletResponse = WebUtils.toHttp(response);
        httpServletResponse.setHeader("Access-control-Allow-Origin", httpServletRequest.getHeader("Origin"));
        httpServletResponse.setHeader("Access-Control-Allow-Methods", "GET,POST,OPTIONS,PUT,DELETE");
        httpServletResponse.setHeader("Access-Control-Allow-Headers", httpServletRequest.getHeader("Access-Control-Request-Headers"));
        // 跨域时会首先发送一个OPTIONS请求，这里我们给OPTIONS请求直接返回正常状态
        if (httpServletRequest.getMethod().equals(RequestMethod.OPTIONS.name())) {
            httpServletResponse.setStatus(org.springframework.http.HttpStatus.OK.value());
            return false;
        }
        return super.preHandle(request, response);
    }
}

4.4 创建JwtToken类

package com.gyb.shiro;

import org.apache.shiro.authc.AuthenticationToken;

public class JwtToken implements AuthenticationToken {

    private String token;

    public JwtToken(String jwt) {
        this.token = jwt;
    }

    @Override
    public Object getPrincipal() {
        return token;
    }

    @Override
    public Object getCredentials() {
        return token;
    }
}

5.创建util包

JwtUtil: 1.在用户调用登录接口时，生成jwt

​ 2.获取token的Claims对象的方法，Claims大家可以理解为jwt明文的报文体结构，在验证的时候可以通过获取其到当前请求的用 户payload信息。

​ 3.判定token是否过期

ShiroUtil: 只有一行代码，我是为了简便= =，（也可以不写此类）

​ 用于获取当前用户的Principal

5.1 JwtUtil

package com.gyb.util;

import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlGorithm;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

import java.util.Date;


@Slf4j
@Data
@Component
@ConfigurationProperties(prefix = "gyb.jwt")
public class JwtUtils {

    private String secret;
    private long expire;
    private String header;

    
    public String generateToken(long userId) {
        Date nowDate = new Date();
        //过期时间
        Date expireDate = new Date(nowDate.getTime() + expire * 1000);

        return Jwts.builder()
                .setHeaderParam("typ", "JWT")
                .setSubject(userId+"")
                .setIssuedAt(nowDate)
                .setExpiration(expireDate)
                .signWith(SignatureAlgorithm.HS512, secret)
                .compact();
    }

    public Claims getClaimByToken(String token) {
        try {
            return Jwts.parser()
                    .setSigningKey(secret)
                    .parseClaimsJws(token)
                    .getBody();
        }catch (Exception e){
            log.debug("validate is token error ", e);
            return null;
        }
    }

    
    public boolean isTokenExpired(Date expiration) {
        return expiration.before(new Date());
    }
}

5.2 ShiroUtil

package com.gyb.util;import com.gyb.shiro.AccountProfile;import org.apache.shiro.SecurityUtils;public class ShiroUtil {    public static AccountProfile getProfile() {        return (AccountProfile) SecurityUtils.getSubject().getPrincipal();    }}