1.创建自定义的拦截器并实现HandlerInterceptor接口
package com.demo.common.interceptor;
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 MyInterceptor implements HandlerInterceptor{
Logger logger = LoggerFactory.getLogger(MyInterceptor.class);
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
throws Exception {
logger.info("preHandle :" +request.getContextPath());
HttpSession session = request.getSession();
if (session.getAttribute("user") != null)
return true;
// 跳转登录
String url = request.getContextPath() + "/login";
response.sendRedirect(url);
return true;
}
@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 {
}
}
2.创建一个java类继承WebMvcConfiguraeAdapter并重写addInterceptor方法(该类用来添加配置拦截器在该类中添加配置拦截器,以及配置过滤)
package com.demo.common.interceptor;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
@Configuration
public class AddInterceptor extends WebMvcConfigurerAdapter{
public void addInterceptors(InterceptorRegistry registry){
registry.addInterceptor(new MyInterceptor())
.addPathPatterns("/**")
.excludePathPatterns("/login")
.excludePathPatterns("/loginPost");
}
}
原文地址:https://www.cnblogs.com/kevliudm/p/12309238.html
时间: 2024-10-08 05:57:09