SpringCloud系列研究服务网关zuulWord文件下载.docx

SpringCloud系列研究服务网关zuulWord文件下载.docx

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<

?

xmlversion="

1.0"

encoding="

UTF-8"

>

projectxmlns="

http:

//maven.apache.org/POM/4.0.0"

xmlns:

xsi="

//www.w3.org/2001/XMLSchema-instance"

xsi:

schemaLocation="

//maven.apache.org/POM/4.0.0http:

//maven.apache.org/xsd/maven-4.0.0.xsd"

<

modelVersion>

4.0.0<

/modelVersion>

groupId>

com.cloud.microservice<

/groupId>

artifactId>

ms-zuul-demo<

/artifactId>

version>

0.0.1-SNAPSHOT<

/version>

packaging>

jar<

/packaging>

name>

/name>

description>

DemoprojectforSpringBoot<

/description>

parent>

org.springframework.boot<

spring-boot-starter-parent<

1.5.9.RELEASE<

relativePath/>

!

--lookupparentfromrepository-->

/parent>

properties>

project.build.sourceEncoding>

UTF-8<

/project.build.sourceEncoding>

project.reporting.outputEncoding>

/project.reporting.outputEncoding>

java.version>

1.8<

/java.version>

spring-cloud.version>

Edgware.SR1<

/spring-cloud.version>

/properties>

dependencies>

dependency>

org.springframework.cloud<

spring-cloud-starter-eureka<

/dependency>

spring-cloud-starter-zuul<

spring-boot-starter-test<

scope>

test<

/scope>

/dependencies>

dependencyManagement>

spring-cloud-dependencies<

${spring-cloud.version}<

type>

pom<

/type>

import<

/dependencyManagement>

build>

plugins>

plugin>

spring-boot-maven-plugin<

/plugin>

/plugins>

/build>

/project>

2：

application.properties中的配置信息如下：

spring.application.name=ms-gateway-zuul

server.port=8000

#注册中心地址

eureka.client.serviceUrl.defaultZone=http:

//xx.xx.xx.xx:

9000/eureka/

#这里的配置表示，访问/userdemo/**直接重定向到eureka中的ms-demo-provider这个serviceId

zuul.routes.userprovider.path=/userdemo/**

zuul.routes.userprovider.serviceId=ms-demo-provider

3：

在入口类Application中增加@EnableZuulProxy注解，表明这是个网关服务

packagecom.cloud.microservice;

importorg.springframework.boot.SpringApplication;

importorg.springframework.boot.autoconfigure.SpringBootApplication;

importflix.zuul.EnableZuulProxy;

@SpringBootApplication

@EnableZuulProxy

publicclassZuulDemoApplication{

publicstaticvoidmain（String[]args）{

SpringApplication.run（ZuulDemoApplication.class,args）;

}

}

启动工程，然后刷新Eureka界面，可以看到本地zuul服务已经注册到服务中心。

四、运行测试

打开浏览器，访问http:

//localhost:

8000/userdemo/demo/user/1.0/findAll，返回结果如下，说明网关已经成功转发到相应的服务，接口调用成功。

至此，zuul的简单demo已经完成，其他高级功能有待后续研究。

五、问题总结

如果在通过网关访问接口的时候出现flix.zuul.exception.ZuulException:

Forwardingerror错误，则需要在pom.xml中增加如下依赖：

我由于是用idea模板生成的工程，所以pom里面缺少spring-cloud-starter-eureka这个jar包，后来加上之后问题就解决了。

详细log信息：

2018-01-2616:

36:

24.925WARN32240---[nio-8000-exec-3]o.s.c.n.z.filters.post.SendErrorFilter:

Errorduringfiltering

flix.zuul.exception.ZuulException:

Forwardingerror

atflix.zuul.filters.route.RibbonRoutingFilter.handleException（RibbonRoutingFilter.java:

189）~[spring-cloud-netflix-core-1.4.2.RELEASE.jar:

1.4.2.RELEASE]

atflix.zuul.filters.route.RibbonRoutingFilter.forward（RibbonRoutingFilter.java:

164）~[spring-cloud-netflix-core-1.4.2.RELEASE.jar:

atflix.zuul.filters.route.RibbonRoutingFilter.run（RibbonRoutingFilter.java:

111）~[spring-cloud-netflix-core-1.4.2.RELEASE.jar:

atflix.zuul.ZuulFilter.runFilter（ZuulFilter.java:

112）~[zuul-core-1.3.0.jar:

1.3.0]

atflix.zuul.FilterProcessor.processZuulFilter（FilterProcessor.java:

193）~[zuul-core-1.3.0.jar:

atflix.zuul.FilterProcessor.runFilters（FilterProcessor.java:

157）~[zuul-core-1.3.0.jar:

atflix.zuul.FilterProcessor.route（FilterProcessor.java:

118）~[zuul-core-1.3.0.jar:

atflix.zuul.ZuulRunner.route（ZuulRunner.java:

96）~[zuul-core-1.3.0