Spring Boot2.0 設置攔截器

所有功能完成 配置登錄認證

配置攔截器

• 新建包com.example.interceptor;

• 創建login攔截類

package?com.example.interceptor;import?org.springframework.web.servlet.HandlerInterceptor;import?org.springframework.web.servlet.ModelAndView;import?javax.servlet.http.HttpServletRequest;import?javax.servlet.http.HttpServletResponse;import?javax.servlet.http.HttpSession;public?class?LoginInterceptor?implements?HandlerInterceptor?{????@Override
????public?boolean?preHandle(HttpServletRequest?request,?HttpServletResponse?response,?Object?handler)?throws?Exception?{???????//請求進入這個攔截器
????????HttpSession?session?=?request.getSession();????????if(session.getAttribute("user")?==?null){???????//判斷session中有沒有user信息//????????????System.out.println("進入攔截器");
????????????if("XMLHttpRequest".equalsIgnoreCase(request.getHeader("X-Requested-With"))){
????????????????response.sendError(401);
????????????}
????????????response.sendRedirect("/");?????//沒有user信息的話進行路由重定向
????????????return?false;
????????}????????return?true;????????//有的話就繼續操作
????}????@Override
????public?void?postHandle(HttpServletRequest?request,?HttpServletResponse?response,?Object?handler,?ModelAndView?modelAndView)?throws?Exception?{

????}????@Override
????public?void?afterCompletion(HttpServletRequest?request,?HttpServletResponse?response,?Object?handler,?Exception?ex)?throws?Exception?{

????}
}

• 在com.example包中添加攔截控制器

package?com.example;import?com.example.interceptor.LoginInterceptor;import?com.example.interceptor.RightsInterceptor;import?org.springframework.beans.factory.annotation.Autowired;import?org.springframework.context.annotation.Configuration;import?org.springframework.web.servlet.config.annotation.*;@Configuration??????????//使用注解?實現攔截public?class?WebAppConfigurer?implements?WebMvcConfigurer???{????@Autowired
????RightsInterceptor?rightsInterceptor;????@Override
????public?void?addInterceptors(InterceptorRegistry?registry)?{????????//登錄攔截的管理器
????????InterceptorRegistration?registration?=?registry.addInterceptor(new?LoginInterceptor());?????//攔截的對象會進入這個類中進行判斷
????????registration.addPathPatterns("/**");????????????????????//所有路徑都被攔截
????????registration.excludePathPatterns("/","/login","/error","/static/**","/logout");???????//添加不攔截路徑

????}

}

• 在WebAppConfigurer.java中增加內容

package?com.example;import?com.example.interceptor.LoginInterceptor;import?com.example.interceptor.RightsInterceptor;import?org.springframework.beans.factory.annotation.Autowired;import?org.springframework.context.annotation.Configuration;import?org.springframework.web.servlet.config.annotation.*;@Configuration??????????//使用注解?實現攔截public?class?WebAppConfigurer?implements?WebMvcConfigurer???{????@Autowired
????RightsInterceptor?rightsInterceptor;????@Override
????public?void?addInterceptors(InterceptorRegistry?registry)?{????????//登錄攔截的管理器
????????InterceptorRegistration?registration?=?registry.addInterceptor(new?LoginInterceptor());?????//攔截的對象會進入這個類中進行判斷
????????registration.addPathPatterns("/**");????????????????????//所有路徑都被攔截
????????registration.excludePathPatterns("/","/login","/error","/static/**","/logout");???????//添加不攔截路徑//????????super.addInterceptors(registry);


????????//權限攔截的管理器
????????InterceptorRegistration?registration1?=?registry.addInterceptor(rightsInterceptor);
????????registration1.addPathPatterns("/**");????????????????????//所有路徑都被攔截
????????registration1.excludePathPatterns("/","/login","/error","/static/**","/logout");???????//添加不攔截路徑
????}

}