若依ruoyi实现单点登录

系统说明（两个系统数据库用户信息username是同步的，都是唯一的）

1. 第三方平台 
2. 若依系统（ruoyi分离版）

登录需求：

我登录到第三方平台，第三方平台嵌入我们的若依，所以在跳若依的管理页面时不想再登录了。但是验证是需要把第三方平台的token解析成username，拿到username只走我们自己只验证账号的认证。（默认是用户名+密码）

实现构想：

通过前端新加一个页面没有任何样式，只接收第三方平台传来的token，拿到token请求我们自定义的登录controller解析到对应的用户名，直接走用户名认证，认证成功返回生成的JwtToken。前端的新页面拿到请求成功的jwtToken后直接延用原来登录的逻辑跳转到若依的首页！

待优化：

拿到第三方平台的token可以再请求下第三方的接口验证对方的token是否有效。如果该账号在若依不存在可以在请求第三方时 获取对方的账号部门信息新建一个。（是防止对方传过来的token被多次使用，因为双方token过期时间不一致）

项目目录结构：（给个大概，截图太累了）

代码实现（全部在若依端进行改造）

• login.js中添加 （请求后端接口）

export function ywgllogin(data) {  return request({    url: '/ywgllogin',    method: 'post',    data: data  })}

• user.js中添加（引用组件，添加方法）

 //ywgl通过它自己的accessToken登录      YwglLogin({ commit }, data) {        return new Promise((resolve, reject) => {          ywgllogin(data).then(res => {            setToken(res.token)            commit('SET_TOKEN', res.token)            resolve()          }).catch(error => {            reject(error)          })        })      },

• index.js中添加

{        path: '/ywgllogin',        component: () =>            import ('@/views/ywgllogin'),        hidden: true    },

• views下面同原来login.Vue同级新建ywgllogin.vue

•  permission.js添加白名单放行（两处）

const whiteList = ['/ywgllogin','/login', '/auth-redirect', '/bind', '/reGISter']

if (to.path === '/login'||to.path === '/ywgllogin') {

• 后端登录新接口（controller)

package com.ruoyi.WEB.controller.system;import com.ruoyi.common.constant.Constants;import com.ruoyi.common.core.domain.ajaxResult;import com.ruoyi.common.core.domain.model.LoginBody;import com.ruoyi.common.utils.StringUtils;import com.ruoyi.framework.web.service.YwglTokenService;import com.ruoyi.system.service.ISysUserService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.PostMapping;import org.springframework.web.bind.annotation.RequestBody;import org.springframework.web.bind.annotation.RestController;@RestControllerpublic class YwglAccessTokenLoginController {    @Autowired    private ISysUserService sysUserService;    @Autowired    private YwglTokenService ywglTokenService;        @PostMapping("/ywgllogin")    public AjaxResult ywgllogin(@RequestBody LoginBody loginBody) {        String accessToken = loginBody.getAccessToken();        if (StringUtils.isNotEmpty(accessToken)) {            String tokenNew = ywglTokenService.ywglLogin(accessToken);            AjaxResult ajax = AjaxResult.success();            ajax.put(Constants.TOKEN, tokenNew);            return ajax;                   } else {            return AjaxResult.error();        }            }}

注意：LoginBody新增变量accessToken

• service添加登录验证走自己的

 public String ywglLogin(String accessToken)    {        // 用户验证        Authentication authentication = null;        String username =accessToken;        try        {            username="这里填自己如何解析我们第三方传来的accessToken变成系统的username这里我就省略了";            authentication = authenticationManager                    .authenticate(new YwglAuthenticationToken(username));        }        catch (Exception e)        {            if (e instanceof BadCredentialsException)            {                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.passWord.not.match")));                throw new UserPasswordNotMatchException();            }            else            {                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, e.getMessage()));                throw new ServiceException(e.getMessage());            }        }        AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_SUCCESS, MessageUtils.message("user.login.success")));        LoginUser loginUser = (LoginUser) authentication.getPrincipal();        recordLoginInfo(loginUser.getUserId());        // 生成token        return tokenService.createToken(loginUser);    }

• 添加自定义认证  YwglAuthenticationToken 

package com.ruoyi.framework.ywglsecurity;import org.springframework.security.authentication.AbstractAuthenticationToken;import org.springframework.security.core.GrantedAuthority;import java.util.Collection;public class YwglAuthenticationToken extends AbstractAuthenticationToken {    private final Object principal;    public YwglAuthenticationToken(Object principal) {        super(null);        this.principal = principal;        this.setAuthenticated(false);    }    public YwglAuthenticationToken(Object principal, Collection authorities) {        super(authorities);        this.principal = principal;        super.setAuthenticated(true);    }    @Override    public Object getCredentials() {        return null;    }    @Override    public Object getPrincipal() {        return this.principal;    }    @Override    public void setAuthenticated(boolean isAuthenticated) throws IllegalArgumentException {        if (isAuthenticated) {            throw new IllegalArgumentException(                    "Cannot set this token to trusted - use constructor which takes a GrantedAuthority list instead");        }        super.setAuthenticated(false);    }    @Override    public void eraseCredentials() {        super.eraseCredentials();    }}

• 添加 YwglAuthenticationProvider   

package com.ruoyi.framework.ywglsecurity;import com.ruoyi.framework.web.service.UserDetailsServiceImpl;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.security.authentication.AuthenticationProvider;import org.springframework.security.core.Authentication;import org.springframework.security.core.AuthenticationException;import org.springframework.security.core.userdetails.UserDetails;import org.springframework.stereotype.Component;import java.util.Collections;@Componentpublic class YwglAuthenticationProvider   implements AuthenticationProvider {    @Autowired    private UserDetailsServiceImpl userDetailsService;        @Override    public Authentication authenticate(Authentication authentication) throws AuthenticationException {        YwglAuthenticationToken ywglAuthenticationToken = (YwglAuthenticationToken) authentication;        String username = (String) ywglAuthenticationToken.getPrincipal();        UserDetails user = userDetailsService.loadUserByUsername(username);        YwglAuthenticationToken result = new YwglAuthenticationToken(user, Collections.emptyList());                result.setDetails(ywglAuthenticationToken.getDetails());        return result;    }        @Override    public boolean supports(Class aClass) {        return YwglAuthenticationToken.class.isAssignableFrom(aClass);    }}

• 修改SecurityConfig 放行我们的请求登录路径 并把自定义认证加进来

.antMatchers("/hello","/ywgllogin","/login", "/register", "/captchaImage").anonymous()

@Overrideprotected void configure(AuthenticationManagerBuilder auth) throws Exception{    auth.userDetailsService(userDetailsService).passwordEncoder(bCryptPasswordEncoder());    auth.authenticationProvider(ywglAuthenticationProvider);}

主要参考：

若依 Spring Security 自定义认证集成_高德新的博客-CSDN博客_若依 认证

若依实现系统单点登录（可绕过验证码）_穆雄雄的博客-CSDN博客

来源地址：https://blog.csdn.net/sinat_28381507/article/details/128131655