spring boot 中設(shè)置默認(rèn)網(wǎng)頁(yè)的方法

更新時(shí)間：2018年04月03日 09:58:28 作者：pj小小碼農(nóng)

這篇文章主要介紹了spring boot 中設(shè)置默認(rèn)網(wǎng)頁(yè)的方法，小編覺(jué)得挺不錯(cuò)的，現(xiàn)在分享給大家，也給大家做個(gè)參考。一起跟隨小編過(guò)來(lái)看看吧

廢話(huà)不多說(shuō)，直接上代碼，相信都能看的懂

一共兩布，第一步，創(chuàng)建Interceptor攔截

package com.cy.example.config;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

public class LoginInterceptor implements HandlerInterceptor {

  private Logger logger = LoggerFactory.getLogger(LoginInterceptor.class);

  public void postHandle(HttpServletRequest request,
      HttpServletResponse response, Object handler,
      ModelAndView modelAndView) throws Exception {
    // TODO Auto-generated method stub

  }

  public void afterCompletion(HttpServletRequest request,
      HttpServletResponse response, Object handler, Exception ex)
      throws Exception {
    // TODO Auto-generated method stub

  }

  public boolean preHandle(HttpServletRequest request,
      HttpServletResponse response, Object handler) throws Exception {
    // TODO Auto-generated method stub
    //獲取session
    HttpSession session = request.getSession(true);
    logger.info("----進(jìn)入登錄攔截器--url："+request.getServletPath()+"-----");
    if(session.getAttribute(WebConfig.LOGIN_USER) == null){
      logger.info("------跳轉(zhuǎn)到login頁(yè)面-----");
      response.sendRedirect(request.getContextPath()+"/index");
      return false;
    }else{
      session.setAttribute(WebConfig.LOGIN_USER, session.getAttribute(WebConfig.LOGIN_USER));
      return true;
    }
  }

}

第二步，注冊(cè)創(chuàng)建的攔截器

package com.cy.example.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {

  public static String LOGIN_USER = "loginUser";

  public WebConfig() {
    super();
  }
  //因?yàn)樾录恿藬r截器，這里需要重新設(shè)置資源地址
  @Override
  public void addResourceHandlers(ResourceHandlerRegistry registry) {
    registry.addResourceHandler("/static/**").addResourceLocations(
        "classpath:/static/");
    registry.addResourceHandler("/templates/**").addResourceLocations(
        "classpath:/templates/");

    super.addResourceHandlers(registry);
  }

  @Override
  public void configureDefaultServletHandling(
      DefaultServletHandlerConfigurer configurer) {
    configurer.enable();
  }

  @Override
  public void addInterceptors(InterceptorRegistry registry) {
    // 攔截規(guī)則：除了login，其他都攔截判斷,excludePathPatterns是排除攔截的路徑，一個(gè)是登錄驗(yàn)證地址，一個(gè)是登錄頁(yè)
    registry.addInterceptor(new
LoginInterceptor()).addPathPatterns("/**").excludePathPatterns("/index","/system/user/validate");
    super.addInterceptors(registry);
  }

}

以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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