spring1-demo.zip

package com.cy1.interceptor; import com.alibaba.fastjson.JSONObject; import com.cy1.pojo.Result; import com.cy1.utils.jwtUtils; import lombok.extern.slf4j.Slf4j; import org.springframework.stereotype.Component; import org.springframework.util.StringUtils; import org.springframework.web.servlet.HandlerInterceptor; import org.springframework.web.servlet.ModelAndView; import javax.servlet.FilterChain; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; @Slf4j @Component public class LoginCheckInterceptor implements HandlerInterceptor { @Override public boolean preHandle(HttpServletRequest req, HttpServletResponse resp, Object handler) throws Exception { String url=req.getRequestURL().toString(); if (url.contains("login")){ log.info("登录操作，放行..."); return true; } String jwt=req.getHeader("token"); if (!StringUtils.hasLength(jwt)){ log.info("请求头token为空，返回未登录的信息"); Result error=Result.error("NOT_LOGIN"); String notLogin= JSONObject.toJSONString(error); resp.getWriter().write(notLogin); return false; } try { jwtUtils.parseJWT(jwt); } catch (Exception e) { e.printStackTrace(); log.info("解析令牌失败，返回未登录错误信息"); Result error=Result.error("NOT_LOGIN"); String notLogin=JSONObject.toJSONString(error); resp.getWriter().write(notLogin); return false; } log.info("令牌合法，放行"); return true; } @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { System.out.println(" postHandle..."); } @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { System.out.println("afterCompletion..."); } }