shiro 验证通过后的信息保存在session 中，而ajax 每次传的都是不同的sessionid ，所以主要的区别就是需要修改shiro获取sessionid的方式。这里使用的是登录后将后台的sessionid 传到前端然后存放到 cookie（这个存放的地方视情况而定），然后每次请求后端时在Header中携带此信息,这里起名为Authorization

shiro 中 默认获取Sessionid的类是DefaultWebSessionManager所以需要重写此类

import org.apache.commons.lang3.StringUtils;import org.apache.shiro.web.servlet.ShiroHttpServletRequest;import org.apache.shiro.web.session.mgt.DefaultWebSessionManager;import org.apache.shiro.web.util.WebUtils; import javax.servlet.ServletRequest;import javax.servlet.ServletResponse;import java.io.Serializable; public class PowerShiroSessionManager extends DefaultWebSessionManager {  /** * 获取请求头中key为“Authorization”的value == sessionId */ private static final String AUTHORIZATION ="Authorization";  private static final String REFERENCED_SESSION_ID_SOURCE = "cookie";   @Override protected Serializable getSessionId(ServletRequest request, ServletResponse response) { // TODO Auto-generated method stub String sessionId = WebUtils.toHttp(request).getHeader(AUTHORIZATION); System.out.println(sessionId); if (StringUtils.isNotEmpty(sessionId)) {  request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID_SOURCE, ShiroHttpServletRequest.COOKIE_SESSION_ID_SOURCE);  request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID, sessionId);  request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID_IS_VALID, Boolean.TRUE);  return sessionId; } return super.getSessionId(request, response); }}

然后在配置中配置此类

@Bean public SessionManager sessionManager() { PowerShiroSessionManager shiroSessionManager = new PowerShiroSessionManager(); return shiroSessionManager; }  @Bean public SecurityManager securityManager(){ DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager(); securityManager.setRealm(myShiroRealm()); //自定义session管理 securityManager.setSessionManager(sessionManager()); return securityManager; }

然后修改前端，这里前端使用的时Vue.js，登录成功后将SessionId保存到cookie中，并将请求中携带头信息

util.setCookie("SESSIONID",data.data.sessionId,1);axios.defaults.headers.common['Authorization'] = util.getCookie("SESSIONID");

这样后端就能根据这个sessionid判断出用户是否通过认证