SpringCloud之zuul搭建

1、zuul简介

Zuul的主要功能是路由和过滤器。路由功能是微服务的一部分，好比／api/user映射到user服务，/api/shop映射到shop服务。zuul实现了负载均衡。

zuul有如下功能：

• Authentication
• Insights
• Stress Testing
• Canary Testing
• Dynamic Routing
• Service Migration
• Load Shedding
• Security
• Static Response handling
• Active/Active traffic management

2、jar包依赖

<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.pkfare</groupId>
	<artifactId>zuul</artifactId>
	<version>1.0.0</version>
	<packaging>jar</packaging>



	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	</properties>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.9.RELEASE</version>
	</parent>
	<dependencyManagement>
		<dependencies>
			<dependency>
				<groupId>org.springframework.cloud</groupId>
				<artifactId>spring-cloud-dependencies</artifactId>
				<version>Dalston.SR5</version>
				<type>pom</type>
				<scope>import</scope>
			</dependency>
		</dependencies>
	</dependencyManagement>
	<dependencies>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-zuul</artifactId>
		</dependency>
	</dependencies>
	<build>
		<resources>
			<resource>
				<directory>src/main/java</directory>
			</resource>
			<resource>
				<directory>src/main/resources</directory>
			</resource>
		</resources>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<configuration>
					<source>1.8</source>
					<target>1.8</target>
					<encoding>UTF-8</encoding>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

 3、启动程序

package com.pkfare.zuul;

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

@EnableZuulProxy
@SpringBootApplication
public class Application 
{
    public static void main( String[] args )
    {
        SpringApplication.run(Application.class, args);
    }
}

4、配置文件

#配置忽略的请求头
zuul.sensitive-headers=  
#配置对应的路由映射
zuul.routes.usercenter-provider.stripPrefix=false
zuul.routes.usercenter-provider.path=/user/**
zuul.routes.usercenter-provider.serviceId=USERCENTER-PROVIDER
#熔断时间
hystrix.command.default.execution.isolation.thread.timeoutInMilliseconds=120000
#熔断信号量
zuul.semaphore.maxSemaphores=1000

#服务超时间
ribbon.ReadTimeout=180000
ribbon.ConnectTimeout=18000