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Spring Cloud Config Eureka 服务器发现和 zuul

[英]Spring Cloud Config Eureka server discovery and zuul

 原文  2020-03-24 16:15:26  4   1    spring-boot/ spring-cloud/ netflix-zuul/ spring-cloud-netflix/ spring-cloud-config

问题描述

我正在尝试基于 Spring 功能设置一个简单的微服务架构。 我有 3 个简单的微服务作为起点：1 配置服务器（Spring 云配置）2 发现服务器（eureka 服务器）3 网关 Zuul

我配置服务，以便发现服务器存储所有 .properties 文件，它将自己注册到发现服务器，以便所有其他服务检索 .properties 文件，而不是通过静态 url 而是通过 eureka 服务器访问发现。

我的问题是，eureka-server 在 bootstrap.properties 文件中有发现的静态 url，它可以成功检索文件，但网关没有从服务器检索文件。 我有以下错误：

2020-03-24 16:49:32.287  INFO 43460 --- [  restartedMain] c.c.c.ConfigServicePropertySourceLocator : Connect Timeout Exception on Url - http://host.docker.internal:8081/. Will be trying the next url if available
2020-03-24 16:49:32.289  WARN 43460 --- [  restartedMain] c.c.c.ConfigServicePropertySourceLocator : Could not locate PropertySource: I/O error on GET request for "http://host.docker.internal:8081/gateway/default": connect timed out; nested exception is java.net.SocketTimeoutException: connect timed out

我的服务配置如下：

配置：

  • 应用程序属性：
server.port=8081
spring.application.name=config

spring.cloud.config.server.git.uri=file:///${user.home}/application-config

eureka.client.region = default
eureka.client.registryFetchIntervalSeconds = 5
eureka.client.serviceUrl.defaultZone=http://localhost:8082/eureka/
  • pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.5.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>config</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>config</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Hoxton.SR3</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-config-server</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </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>

发现：

  • bootstrap.properties
spring.cloud.config.name=discovery
spring.cloud.config.uri=http://localhost:8081
  • pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>discovery</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>discovery</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Hoxton.SR3</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </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>

网关：

  • bootstrap.properties
spring.cloud.config.name=gateway
spring.cloud.config.discovery.service-id=config
spring.cloud.config.discovery.enabled=true

eureka.client.serviceUrl.defaultZone=http://localhost:8082/eureka/
  • pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.5.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>gateway</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>gateway</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Hoxton.SR3</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </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>

存储在 /application-config 中的 2 个文件 .properties 如下

  • 发现.属性
spring.application.name=discovery
server.port=8082

eureka.instance.hostname=localhost

eureka.client.serviceUrl.defaultZone=http://localhost:8082/eureka/
eureka.client.register-with-eureka=false
eureka.client.fetch-registry=false
  • 网关属性
spring.application.name=gateway
server.port=8080

eureka.client.region = default
eureka.client.registryFetchIntervalSeconds = 5

zuul.routes.book-service.path=/book-service/**
zuul.routes.book-service.sensitive-headers=Set-Cookie,Authorization
hystrix.command.book-service.execution.isolation.thread.timeoutInMilliseconds=600000

zuul.routes.rating-service.path=/rating-service/**
zuul.routes.rating-service.sensitive-headers=Set-Cookie,Authorization
hystrix.command.rating-service.execution.isolation.thread.timeoutInMilliseconds=600000

zuul.routes.discovery.path=/discovery/**
zuul.routes.discovery.sensitive-headers=Set-Cookie,Authorization
zuul.routes.discovery.url=http://localhost:8082
hystrix.command.discovery.execution.isolation.thread.timeoutInMilliseconds=600000

奇怪的是，如果在我开始一切之后我尝试从浏览器访问网关文件调用http://host.docker.internal:8081/gateway/default我可以检索文件但是当网关启动时他试图检索同一个文件，它给了我上面的错误：

2020-03-24 16:49:22.236  INFO 43460 --- [  restartedMain] c.c.c.ConfigServicePropertySourceLocator : Fetching config from server at : http://host.docker.internal:8081/
2020-03-24 16:49:32.287  INFO 43460 --- [  restartedMain] c.c.c.ConfigServicePropertySourceLocator : Connect Timeout Exception on Url - http://host.docker.internal:8081/. Will be trying the next url if available
2020-03-24 16:49:32.289  WARN 43460 --- [  restartedMain] c.c.c.ConfigServicePropertySourceLocator : Could not locate PropertySource: I/O error on GET request for "http://host.docker.internal:8081/gateway/default": connect timed out; nested exception is java.net.SocketTimeoutException: connect timed out
2020-03-24 16:49:32.298  INFO 43460 --- [  restartedMain] com.example.gateway.GatewayApplication   : No active profile set, falling back to default profiles: default
2020-03-24 16:49:33.223  WARN 43460 --- [  restartedMain] o.s.boot.actuate.endpoint.EndpointId     : Endpoint ID 'service-registry' contains invalid characters, please migrate to a valid format.
2020-03-24 16:49:33.249  WARN 43460 --- [  restartedMain] o.s.boot.actuate.endpoint.EndpointId     : Endpoint ID 'hystrix.stream' contains invalid characters, please migrate to a valid format.
2020-03-24 16:49:33.468  INFO 43460 --- [  restartedMain] o.s.cloud.context.scope.GenericScope     : BeanFactory id=0021ee62-0366-3a59-86e9-68f6b99d3e59
2020-03-24 16:49:34.550  INFO 43460 --- [  restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2020-03-24 16:49:34.562  INFO 43460 --- [  restartedMain] o.apache.catalina.core.StandardService   : Starting service [Tomcat]

有人可以帮我吗？

1 个解决方案

解决方案1
 1  2020-03-30 07:15:24

如果有人遇到我同样的问题，我找到了解决方案。 这是由于我的主机文件。 我对其进行了一次更改以适应我工作的 VPN，并且它将我的 ip 映射到一个我无法在没有 VPN 的情况下访问的 ip。 一旦我评论文件主机一切正常

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