使用WebMvcConfigurerAdapter 作登陆，失效的一个小小缘由

package com.github.carter659.spring13; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.web.servlet.config.annotation.InterceptorRegistration; import org.springframework.web.servlet.config.annotation.InterceptorRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; import org.springframework.web.servlet.handler.HandlerInterceptorAdapter; /** * 登陆配置 博客出处：http://www.cnblogs.com/GoodHelper/ * */ @Configuration public class WebSecurityConfig extends WebMvcConfigurerAdapter { /** * 登陆session key */
    public final static String SESSION_KEY = "user"; @Bean public SecurityInterceptor getSecurityInterceptor() { return new SecurityInterceptor(); } public void addInterceptors(InterceptorRegistry registry) { InterceptorRegistration addInterceptor = registry.addInterceptor(getSecurityInterceptor()); // 排除配置
        addInterceptor.excludePathPatterns("/error"); addInterceptor.excludePathPatterns("/login**"); // 拦截配置
        addInterceptor.addPathPatterns("/**"); } private class SecurityInterceptor extends HandlerInterceptorAdapter { @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { HttpSession session = request.getSession(); if (session.getAttribute(SESSION_KEY) != null) return true; // 跳转登陆
            String url = "/login"; response.sendRedirect(url); return false; } } }

排除配置那里，千万别把，发送过去验证登陆的网址，也给拦截了，这个缘由，折腾了我大半个小时

// 排除配置

addInterceptor.excludePathPatterns("/login**");

玩转spring boot——简单登陆认证

https://www.cnblogs.com/GoodHelper/p/6343190.html