springboot中如何设置默认网页-创新互联
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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 //获取session HttpSession session = request.getSession(true); logger.info("----进入登录拦截器--url:"+request.getServletPath()+"-----"); if(session.getAttribute(WebConfig.LOGIN_USER) == null){ logger.info("------跳转到login页面-----"); response.sendRedirect(request.getContextPath()+"/index"); return false; }else{ session.setAttribute(WebConfig.LOGIN_USER, session.getAttribute(WebConfig.LOGIN_USER)); return true; } } }
第二步,注册创建的拦截器
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(); } //因为新加了拦截器,这里需要重新设置资源地址 @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) { // 拦截规则:除了login,其他都拦截判断,excludePathPatterns是排除拦截的路径,一个是登录验证地址,一个是登录页 registry.addInterceptor(new LoginInterceptor()).addPathPatterns("/**").excludePathPatterns("/index","/system/user/validate"); super.addInterceptors(registry); } }
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文章名称:springboot中如何设置默认网页-创新互联
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