Spring Boot - Session

墨蓝 2023-10-13 10:05 53阅读 0赞

## 配置登录拦截器 ##

package com.lfsun.springbootsession.interceptor;
    
    import com.lfsun.springbootsession.constants.Consts;
    import org.springframework.stereotype.Component;
    import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.http.HttpSession;
    
    /**
     * <p>
     * 校验Session的拦截器
     * </p>
     */
    @Component
    public class SessionInterceptor extends HandlerInterceptorAdapter {
        
        @Override
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        
            HttpSession session = request.getSession();
            if (session.getAttribute(Consts.SESSION_KEY) != null) {
        
                return true;
            }
            // 跳转到登录页
            String url = "/page/login?redirect=true";
            response.sendRedirect(request.getContextPath() + url);
            return false;
        }
    }

## mvc 配置类 ##

package com.lfsun.springbootsession.config;
    
    import com.lfsun.springbootsession.interceptor.SessionInterceptor;
    import org.springframework.beans.factory.annotation.Autowired;
    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.WebMvcConfigurer;
    
    /**
     * <p>
     * WebMvc 配置类
     * </p>
     */
    @Configuration
    public class WebMvcConfig implements WebMvcConfigurer {
        
        @Autowired
        private SessionInterceptor sessionInterceptor;
    
        @Override
        public void addInterceptors(InterceptorRegistry registry) {
        
            InterceptorRegistration sessionInterceptorRegistry = registry.addInterceptor(sessionInterceptor);
            // 排除不需要拦截的路径
            sessionInterceptorRegistry.excludePathPatterns("/page/login");
            sessionInterceptorRegistry.excludePathPatterns("/page/doLogin");
            sessionInterceptorRegistry.excludePathPatterns("/error");
    
            // 需要拦截的路径
            sessionInterceptorRegistry.addPathPatterns("/**");
        }
    }

## 完整代码案例地址 ##

[Spring Boot 集成 session ][Spring Boot _ session]

[Spring Boot _ session]: https://gitee.com/lfsun666/springboot-study-2023/tree/master/spring-boot-session