springCloud API网关 zuul 无法正确重定向

环境描述：

一个注册中心，一个 springCloud API网关 zuul，一个用户系统，一个账户系统。

http://localhost:5555/account 访问的是账号系统

http://localhost:5555/user   访问的是用户系统

问题现象：

在没登录的情况下访问 http://localhost:5555/account/walletTopUp?amount=40 正常应该跳转到 http://localhost:5555/user/login ，但跳转到 http://localhost:5555/account/login

zuul 过滤器代码

package com.sande.apigateway.security;

import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;
import com.sande.apigateway.utilsInterface.ITokenManagement;
import java.io.IOException;
import javax.annotation.Resource;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

@Component
public class LoginFilter  extends ZuulFilter {
	private static Logger logger = LoggerFactory.getLogger(LoginFilter.class);
    private String[] excludeUrls;
	
	@Resource ITokenManagement iTokenManagement;
	
	@Override
	public String filterType() {
		return "pre";
	}
	
	@Override
	public int filterOrder() {
		return 0;
	}
	
	@Override
	public boolean shouldFilter() {
		return true;
	}
	
	@Override
	public Object run() {
		RequestContext ctx = RequestContext.getCurrentContext();
		HttpServletRequest request = ctx.getRequest();
		HttpServletResponse response =ctx.getResponse();
		
		try {

			//不过滤的uri 
			String[] notFilter = new String[]{"/user/login","/user/userLogin","/user/js"}; 
			//请求的uri 
			String uri = request.getRequestURI(); 
			System.out.println("filter>>>uri>>>"+uri); 
			//是否过滤 
			boolean doFilter = true; 
			for(String s : notFilter){ 
				if(uri.indexOf(s) != -1){ 
					//uri中包含不过滤uri，则不进行过滤 
					doFilter = false; 
					//fc.doFilter(request, response);
					ctx.setSendZuulResponse(true); //将请求往后转发
					ctx.setResponseStatusCode(200);
					break;
				} 
			    
			}
			
			if(doFilter){
				//去cookie里面拿  
				String token ="";
				 
				 Cookie[] cookies = request.getCookies();
				
					for (Cookie cookie : cookies) {
					    String cookieName = cookie.getName();
					    String cookieValue = cookie.getValue();
					    token = cookieValue;
					    //System.out.println(cookieName + ", " + cookieValue);
					}
				
				
				
				if (iTokenManagement.validationToken(token)) {
					//fc.doFilter(request, response);
					ctx.setSendZuulResponse(true); //将请求往后转发
					ctx.setResponseStatusCode(200);
					//System.out.println("Token: " + token);
				} else {
					response.sendRedirect("./login");
				}
			}
		    }  catch (NullPointerException e) {
		    	try {
					response.sendRedirect("./login");
				} catch (IOException e1) {
					// TODO Auto-generated catch block
					e1.printStackTrace();
				}
			}  catch (Exception e) {
				logger.error("登录过滤验证异常");
				/*ctx.set("error.status_code",HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
				ctx.set("error.exception",e);*/
				e.printStackTrace();
			}
		return null;
	}
	
	
}

过滤器的逻辑是，访问用户系统 "/user/login","/user/userLogin" 接口及JS页面的请求直接放行，其他请求则要检查是否有Token（如果之前成功登陆了就会有 Token），没有 Token 就跳到用户系统的登录页面。

zuul 参数配置：

spring.application.name=api-gateway
server.port = 5555
eureka.client.service-url.defaultZone=http://127.0.0.1:1111/eureka/
zuul.routes.user-service.path=/user/**
zuul.routes.user-service.serviceId=user-server
zuul.routes.account-server.path=/account/**
zuul.routes.account-server.serviceId=account-server
zuul.routes.user-service.strip-prefix=false  
zuul.routes.account-server.strip-prefix=false
zuul.routes.user-service.custom-sensitive-headers=true
zuul.routes.account-server.custom-sensitive-headers=true
zuul.add-host-header=true
#zuul.routes.api.url=http://user-server/user/**
#zuul.routes.user.path=/user/**
#zuul.routes.user.url=http://localhost:8080/user
spring.cache.type=redis
spring.redis.host=localhost
spring.redis.port=6379
spring.redis.timeout=10000
spring.redis.database=0
spring.redis.lettuce.pool.max-active=8
spring.redis.lettuce.pool.max-wait=-1
spring.redis.lettuce.pool.max-idle=8
spring.redis.lettuce.pool.min-idle=0

解决办法：修改 zuul 过滤器，把跳转路径有 ./login 改为 /user/login

package com.sande.apigateway.security;

import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;
import com.sande.apigateway.utilsInterface.ITokenManagement;
import java.io.IOException;
import javax.annotation.Resource;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

@Component
public class LoginFilter  extends ZuulFilter {
	private static Logger logger = LoggerFactory.getLogger(LoginFilter.class);
    private String[] excludeUrls;
	
	@Resource ITokenManagement iTokenManagement;
	
	@Override
	public String filterType() {
		return "pre";
	}
	
	@Override
	public int filterOrder() {
		return 0;
	}
	
	@Override
	public boolean shouldFilter() {
		return true;
	}
	
	@Override
	public Object run() {
		RequestContext ctx = RequestContext.getCurrentContext();
		HttpServletRequest request = ctx.getRequest();
		HttpServletResponse response =ctx.getResponse();
		
		try {

			//不过滤的uri 
			String[] notFilter = new String[]{"/user/login","/user/userLogin","/user/js"}; 
			//请求的uri 
			String uri = request.getRequestURI(); 
			System.out.println("filter>>>uri>>>"+uri); 
			//是否过滤 
			boolean doFilter = true; 
			for(String s : notFilter){ 
				if(uri.indexOf(s) != -1){ 
					//uri中包含不过滤uri，则不进行过滤 
					doFilter = false; 
					//fc.doFilter(request, response);
					ctx.setSendZuulResponse(true); //将请求往后转发
					ctx.setResponseStatusCode(200);
					break;
				} 
			    
			}
			
			if(doFilter){
				//去cookie里面拿  
				String token ="";
				 
				 Cookie[] cookies = request.getCookies();
				
					for (Cookie cookie : cookies) {
					    String cookieName = cookie.getName();
					    String cookieValue = cookie.getValue();
					    token = cookieValue;
					    //System.out.println(cookieName + ", " + cookieValue);
					}
				
				
				
				if (iTokenManagement.validationToken(token)) {
					//fc.doFilter(request, response);
					ctx.setSendZuulResponse(true); //将请求往后转发
					ctx.setResponseStatusCode(200);
					//System.out.println("Token: " + token);
				} else {
					response.sendRedirect("/user/login");
				}
			}
		    }  catch (NullPointerException e) {
		    	try {
					response.sendRedirect("/user/login");
				} catch (IOException e1) {
					// TODO Auto-generated catch block
					e1.printStackTrace();
				}
			}  catch (Exception e) {
				logger.error("登录过滤验证异常");
				/*ctx.set("error.status_code",HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
				ctx.set("error.exception",e);*/
				e.printStackTrace();
			}
		return null;
	}
	
	
}