问题
i have an external url and i want to pass some request header through zuul filter to launch the application. Can anyone please help me on this. In my custom prefilter i have written this:
@Component
public class CustomFilters extends ZuulFilter {
public static final Logger logger = LoggerFactory.getLogger(CustomFilters.class);
@Override
public String filterType() {
return "route";
}
@Override
public int filterOrder() {
return 1;
}
@Override
public boolean shouldFilter() {
return true;
}
@Override
public Object run() {
logger.info("executing run ");
RequestContext ctx = RequestContext.getCurrentContext();
ctx.addZuulRequestHeader("x-forwarded-host", "<external url>");
ctx.addZuulRequestHeader("x-forwarded-proto", "https");
ctx.addZuulRequestHeader("x-forwarded-port", "8800");
ctx.addZuulRequestHeader("key", "id);
return null;
}
}
app.properties:
ribbon.eureka.enabled=false
server.port=8080
zuul.routes.books.sensitive-headers=
zuul.routes.books.path = /books/
zuul.routes.books.url = <ext url>
Sample Application: This is giving me a rest url through which i am redirecting to external url defined above in my properties file.
public class SampleApplication {
@RequestMapping(value = "/check")
public String available() {
return "available!";
}
public static void main(String[] args) {
SpringApplication.run(SampleApplication.class, args);
}
}
app.properties:
spring.application.name=book
server.port=8090
Issue screenshot
回答1:
zuul:
routes:
users:
path: /myusers/**
url: http://example.com/users_service
These simple url-routes do not get executed as a HystrixCommand, nor do they load-balance multiple URLs with Ribbon. To achieve those goals, you can specify a serviceId with a static list of servers, as follows:
zuul:
routes:
echo:
path: /myusers/**
serviceId: myusers-service
stripPrefix: true
hystrix:
command:
myusers-service:
execution:
isolation:
thread:
timeoutInMilliseconds: ...
myusers-service:
ribbon:
NIWSServerListClassName: com.netflix.loadbalancer.ConfigurationBasedServerList
ListOfServers: http://example1.com,http://example2.com
ConnectTimeout: 1000
ReadTimeout: 3000
MaxTotalHttpConnections: 500
MaxConnectionsPerHost: 100
in your filter make sure that this filter should come into picture only for request with uri example1.com or example2.com by impelemting should filter method
来源:https://stackoverflow.com/questions/50094625/how-to-route-to-an-external-url-using-zuul-proxy-filter