密码加密与微服务鉴权JWT --- 登录功能

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[TOC]

前言

实际操作(练习实例)

pom(common)，在原有基础上添加jwt依赖

  <dependencies>
        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.20</version>
        </dependency>
        <!--工具-->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>

        <!--jwt依赖-->
        <dependency>
            <groupId>commons-beanutils</groupId>
            <artifactId>commons-beanutils</artifactId>
            <version>1.9.3</version>
        </dependency>

        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>0.9.0</version>
        </dependency>

        <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
            <version>2.9.7</version>
        </dependency>
    </dependencies>

拷贝工具类

保证本地有RAS文件(之前写的有说关于生产RAS点击前往)

项目整合JWT

1、登录时产生token，并返回

2、前端登录后，将token保存到sessionStroage

3、每一次请求中，需要追加请求头

4、在网关中，编写网关过滤器，对请求进行校验

1、登录时产生token，并返回

UserController

private static final String priKeyPath = "D:\\ras\\ras.pri";


    @PostMapping("/login")
    public BaseResult login(@RequestBody TEmp tEmp) {
        TEmp result = empService.login(tEmp);
        if (result != null) {
            String token = null;
            try {
                token = JwtUtils.generateToken(result, 30, RasUtils.getPrivateKey(priKeyPath));
            } catch (Exception e) {
                e.printStackTrace();
            }
            return BaseResult.ok("登录成功").append("token", token);
        } else {
            return BaseResult.error("用户名或密码不匹配");
        }
    }

2、前端登录后，将token保存到sessionStroage

3、每一次请求中，需要追加请求头(api.js)

axios.interceptors.request.use(request => {
    //每一次请求头中，请求头需要携带token
    //获得token
    let token = sessionStorage.getItem('token')
    //有设置就放行
    if (token) {
      request.headers.authorization = token
    }
    return request
  }, error => { });

4、在网关中，编写网关过滤器，对请求进行校验

package com.czxy.filter;

import com.czxy.common.utils.JwtUtils;
import com.czxy.common.utils.RasUtils;
import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;
import com.netflix.zuul.exception.ZuulException;
import org.apache.catalina.User;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;

/**
 * @author 庭前云落
 * @Date 2019/12/23 8:31
 * @description
 */
@Component
public class LoginFilter extends ZuulFilter {

    @Override
    public String filterType() {
        return "pre";
    }

    @Override
    public int filterOrder() {
        return 1;
    }

    @Override
    public boolean shouldFilter() {
        //1 获得工具类(请求上下文对象)
        RequestContext requestContext = RequestContext.getCurrentContext();
        //2 通过工具类获得request对象
        HttpServletRequest request = requestContext.getRequest();

        String requestURI = request.getRequestURI();
        System.out.println(requestURI);
        if ("/api/service/emp/login".equals(requestURI)) {
            return false;
        }
        return true;  //是否执行
    }

    private static final String pubKeyPath = "D:\\ras\\ras.pub";

    @Override
    public Object run() throws ZuulException {
        //1、获得工具类(请求上下文)
        RequestContext requestContext = RequestContext.getCurrentContext();
        //2、获得请求对象
        HttpServletRequest request = requestContext.getRequest();
        //3、获得请求头，获得token值
        String token = request.getHeader("authorization");
        //4、判断--校验
        try {
            JwtUtils.getObjectFromToken(token, RasUtils.getPublicKey(pubKeyPath), User.class);
        } catch (Exception e) {
            e.printStackTrace();
            //不允许放行
            requestContext.setSendZuulResponse(false);
            requestContext.setResponseStatusCode(403);
        }
        //放行
        return null;
    }
}

5、登录拦截器(index.js)未登录跳转回登录页面，已登录则放行

  /**配置拦截器 */
  router.beforeEach((to,from,next)=>{
    if(to.path=='/login'){
    next()
    return
    }
    /**如果有token表示登录，程序跳转，否则跳转到登录页面 */
  let token=  sessionStorage.getItem('token')
    if(token){
      next()
    }else{
        next('/login')
    }
  })

来源：oschina

链接：https://my.oschina.net/tingqianyunluo/blog/3146060

标签

BeanUtils

Zuul

jwt

Joda-Time