SpringCloud学习之zuul

一。为什么要有网关

package com.zhibo.springcloud.zuul;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;
import com.netflix.zuul.exception.ZuulException;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;

@Component
public class ValidateUserZuulFilter extends ZuulFilter {

/**
*
* @return
*/
@Override
public String filterType() {
return "pre";
}

@Override
public int filterOrder() {
return 0;
}

@Override
public boolean shouldFilter() {
return true;
}

@Override
public Object run() throws ZuulException {
RequestContext requestContext = RequestContext.getCurrentContext();
HttpServletRequest request = requestContext.getRequest();
String loginName = request.getParameter("loginName");
if (loginName == null || !"admin".equals(loginName)) {
requestContext.setSendZuulResponse(false);
requestContext.setResponseStatusCode(500);
Gson gson = new GsonBuilder().create();
requestContext.addZuulResponseHeader("content-type", "application/json;charset=utf-8");
requestContext.setResponseBody(gson.toJson(new ResponseEntity("没有登录名", HttpStatus.CONFLICT)));
return null;
}
return null;
}
}

四。zuul中超时的设置总结