标签:web 拦截器 springboot 登录 springframework org import servlet public
在登录控制类实现变成session
package com.jie.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import javax.servlet.http.HttpSession;
@Controller
public class LoginController {
@RequestMapping("/usr/login")
public String login(@RequestParam("username") String username, @RequestParam("password") String password, Model model, HttpSession session){
//具体的业务:
if("123456".equals(password)){
session.setAttribute("loginUser",username);
return "redirect:/main.html";
}
else {
model.addAttribute("msg","用户名密码错误!");
return "index";
}
}
}
编写一个拦截器类
package com.jie.config;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class LoginHandlerInterceptor implements HandlerInterceptor {
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
//登录成功之后,应该有用户的session
Object loginUser=request.getSession().getAttribute("loginUser");
if(null==loginUser) {
request.setAttribute("msg", "你未登录,请先登录!");
request.getRequestDispatcher("/index.html").forward(request, response);
return false;
}
else {
return true;
}
}
}
在配置类加入自定义的拦截器类
同时设置静态资源,登录页面不被拦截
package com.jie.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.LocaleResolver;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
@Configuration
public class MyMvcConfig implements WebMvcConfigurer {
@Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/").setViewName("index");
registry.addViewController("/index.html").setViewName("index");
registry.addViewController("/main.html").setViewName("dashboard");
}
@Bean
public LocaleResolver localeResolver(){
return new MyLocaleResolver();
}
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(new LoginHandlerInterceptor())
.addPathPatterns("/**").excludePathPatterns("/index.html","/","/usr/login","/static/*");
}
}
标签:web,拦截器,springboot,登录,springframework,org,import,servlet,public 来源: https://www.cnblogs.com/OfflineBoy/p/14903051.html
本站声明: 1. iCode9 技术分享网(下文简称本站)提供的所有内容,仅供技术学习、探讨和分享; 2. 关于本站的所有留言、评论、转载及引用,纯属内容发起人的个人观点,与本站观点和立场无关; 3. 关于本站的所有言论和文字,纯属内容发起人的个人观点,与本站观点和立场无关; 4. 本站文章均是网友提供,不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属;如您发现该文章侵犯了您的权益,可联系我们第一时间进行删除; 5. 本站为非盈利性的个人网站,所有内容不会用来进行牟利,也不会利用任何形式的广告来间接获益,纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。