spring cloud项目升级spring boot 2.0爬过的坑

末蓝、 2022-05-30 09:50 113阅读 0赞

注：升级后spring boot为2.0版本，spring cloud为Finchley.M8版本。  
*2.0官方文档地址：[https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/][https_docs.spring.io_spring-boot_docs_current_reference_htmlsingle]*  
*gitee项目地址:[https://gitee.com/lwydyby/springcloud-adplatform][https_gitee.com_lwydyby_springcloud-adplatform]*

升级时，官方建议引进的依赖（可以提示配置的改动）：

<dependency>
    
    <groupId>org.springframework.boot</groupId>
    
    <artifactId>spring-boot-properties-migrator</artifactId>
    
    </dependency>

**一.Eureka**

1.  依赖修改为：

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

1.  如果引用了actuator,actuator的默认路径有ip:port/info等改为IP:port/actuator/info，以此类推
2.  如需使用spring boot admin监控项目，则需增加如下配置：

eureka:
      instance:
        hostname: localhost
        metadata-map:
              user.name: admin
              user.password: admin
        health-check-url-path: /actuator/health
        home-page-url-path: /actuator
        status-page-url-path: /actuator/info
      client:
        registerWithEureka: false
        fetchRegistry: false

**二.gateway**  
1. 需要修改的依赖：

<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.cloud</groupId>
        <artifactId>spring-cloud-starter-openfeign</artifactId>
    </dependency>

1.  spring boot 2.0中actuator默认只公开info和health接口，如果需要获取更多信息，则需增加如下配置：

management.endpoints.web.exposure.include: "*"

**三.monitor**  
1. 目前spring boot admin作者发布了2.0 测试版，详情见：[https://github.com/codecentric/spring-boot-admin][https_github.com_codecentric_spring-boot-admin]  
2. 2.0的界面展示：  
![这里写图片描述][70]  
3. spring boot admin需要增加的依赖：

<properties>
            <hystrix.version>1.5.12</hystrix.version>
            <boot.admin.version>2.0.0-SNAPSHOT</boot.admin.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-eureka-client</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-actuator</artifactId>
            </dependency>
            <dependency>
                <groupId>de.codecentric</groupId>
                <artifactId>spring-boot-admin-starter-server</artifactId>
                <version>2.0.0-SNAPSHOT</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-security</artifactId>
            </dependency>
            <dependency>
                <groupId>org.jolokia</groupId>
                <artifactId>jolokia-core</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>
        <repositories>
        <repository>
            <id>sonatype-nexus-staging</id>
            <url>https://oss.sonatype.org/content/groups/public/</url>
        </repository>
        </repositories>

注：这里只提供依赖，2.0的配置也需要调整，有时间再单独写一篇，需要的话可参考官方文档：  
[https://codecentric.github.io/spring-boot-admin/current/][https_codecentric.github.io_spring-boot-admin_current]  
4. 2.0取消了manage.sleuth.enable配置  
**四.zipkin**  
1. 由于spring boot 2.0将UndertowEmbeddedServletContainerFactory替换掉了，zipkin暂时还未更新到spring boot 2.0 版本  
![这里写图片描述][70 1]  
2. zipkin服务端也没必要使用spring boot2.0，继续使用1.5.x即可  
3. zipkin的客户端如果升级为了2.0，则需更改如下依赖：

<dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-sleuth</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-zipkin</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-stream-binder-kafka</artifactId>
    </dependency>

注：我这里使用的kafka作为中间件，进行的存储。根据作者gitter上的留言，目前kafka还是使用的spring kafka的统一配置，如需单独配置,需要自己编写config类即可。  
sleuth官方文档地址：[https://cloud.spring.io/spring-cloud-static/spring-cloud-sleuth/2.0.0.M5/single/spring-cloud-sleuth.html][https_cloud.spring.io_spring-cloud-static_spring-cloud-sleuth_2.0.0.M5_single_spring-cloud-sleuth.html]

最后推荐几个学习spring boot的网站：  
1. [http://springboot.fun/][http_springboot.fun] Spring中文导航  
2. [https://www.ibm.com/developerworks/cn/java/j-cn-with-reactor-response-encode/index.html][https_www.ibm.com_developerworks_cn_java_j-cn-with-reactor-response-encode_index.html] spring5 响应式编程  
3. [https://spring.io/projects][https_spring.io_projects] spring官方网站（没办法，最新文档只有英文的）  
4. [https://www.ibm.com/developerworks/cn/java/spring5-webflux-reactive/index.html][https_www.ibm.com_developerworks_cn_java_spring5-webflux-reactive_index.html] 使用 Spring 5 的 WebFlux 开发反应式 Web 应用

[https_docs.spring.io_spring-boot_docs_current_reference_htmlsingle]: https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/
[https_gitee.com_lwydyby_springcloud-adplatform]: https://gitee.com/lwydyby/springcloud-adplatform
[https_github.com_codecentric_spring-boot-admin]: https://github.com/codecentric/spring-boot-admin
[70]: /images/20220530/601de61733be44309409956c34da21c0.png
[https_codecentric.github.io_spring-boot-admin_current]: https://codecentric.github.io/spring-boot-admin/current/
[70 1]: /images/20220530/032bba2382764409826d3be130b48875.png
[https_cloud.spring.io_spring-cloud-static_spring-cloud-sleuth_2.0.0.M5_single_spring-cloud-sleuth.html]: https://cloud.spring.io/spring-cloud-static/spring-cloud-sleuth/2.0.0.M5/single/spring-cloud-sleuth.html
[http_springboot.fun]: http://springboot.fun/
[https_www.ibm.com_developerworks_cn_java_j-cn-with-reactor-response-encode_index.html]: https://www.ibm.com/developerworks/cn/java/j-cn-with-reactor-response-encode/index.html
[https_spring.io_projects]: https://spring.io/projects
[https_www.ibm.com_developerworks_cn_java_spring5-webflux-reactive_index.html]: https://www.ibm.com/developerworks/cn/java/spring5-webflux-reactive/index.html