SpringCould总结 | 第六篇 服务网关管理Zuul

//1.工程结构

//2.pom文件

<project xmlns="http://maven.apache.org/POM/4.0.0"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>

	<groupId>com.spc.zuul.server</groupId>
	<artifactId>spc-zuul-server</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.8.RELEASE</version>
		<relativePath />
	</parent>

	<name>spc-zuul-server</name>
	<url>http://maven.apache.org</url>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.version>
		<spring-cloud.version>Edgware.RELEASE</spring-cloud.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-eureka-server</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-ribbon</artifactId>
		</dependency>
		<dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-zuul</artifactId>
        </dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
	</dependencies>

	<dependencyManagement>
		<dependencies>
			<dependency>
				<groupId>org.springframework.cloud</groupId>
				<artifactId>spring-cloud-dependencies</artifactId>
				<version>${spring-cloud.version}</version>
				<type>pom</type>
				<scope>import</scope>
			</dependency>
		</dependencies>
	</dependencyManagement>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
</project>

//3配置文件

spring.application.name=spc-zuul-server
server.port=4000

eureka.client.service-url.defaultZone=http://localhost:1000/eureka/

#eureka.instance.preferIpAddress=true
#eureka.instance.instance-id=${spring.cloud.client.ipAddress}:${server.port}

zuul.routes.api-a.path=/api-a/**
zuul.routes.api-a.serviceId=spc-service-ribbon
zuul.routes.api-b.path=/api-b/**
zuul.routes.api-b.serviceId=spc-service-feign

//4.Zuul服务

package com.spc.zuul.server.spc_zuul_server;

import java.io.IOException;

import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Component;

import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;

@Component
public class ZuulServerFilter extends ZuulFilter{

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

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

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

    @Override
    public Object run() {
        RequestContext requestContext = RequestContext.getCurrentContext();
        HttpServletRequest request = requestContext.getRequest();
        //判断服务请求地址是否在黑名单
        String reqIp = request.getRemoteAddr();
        //根据ip去数据查黑名单 
        //为了方便默认都为true
        boolean flagIp = true;
        if(!flagIp) {
        	requestContext.setSendZuulResponse(false);
        	requestContext.setResponseStatusCode(401);
        	try {
				requestContext.getResponse().getWriter().write("请求 地址再黑名单中");
			} catch (IOException e) {
				e.printStackTrace();
			}
        }
        return null;
    }
}

package com.spc.zuul.server.spc_zuul_server;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;

@EnableZuulProxy
@EnableEurekaClient
@SpringBootApplication
public class ZuulServerApplication {

	public static void main(String[] args) {
		SpringApplication.run(ZuulServerApplication.class, args);
	}
}