SpringCould总结 | 第六篇服务网关管理Zuul

「爱情、让人受尽委屈。」 2022-05-21 00:55 151阅读 0赞

//1.工程结构

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//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);
    	}
    }

[70]: /images/20220521/4cfd6b57b6734eacaab1badcc10b4fb7.png