前兩天組裏的大佬心血來潮,讓我這周把項目裏的spring-boot、spring-cloud版本升級到最新版本,目前項目用到的是spring-boot版本爲1.5.9.RELEASE,spring-cloud的版本爲Edgware.SR2,如今按照要求統一升級到2.0.1.RELEASE、Finchley.RELEASE。如下分享一些我遇到的坑: pom.xml配置以下,內容太長,只貼出部分核心的內容
<parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.1.RELEASE</version> </parent> <dependencyManagement> <dependencies> <!--spring boot--> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>2.0.1.RELEASE</version> </dependency> <!--spring cloud--> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>Finchley.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> <!--redis--> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.9.0</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.9.4</version> </dependency> <dependency> <groupId>com.zaxxer</groupId> <artifactId>HikariCP</artifactId> <version>2.7.8</version> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-openfeign</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-netflix-eureka-client</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency> </dependencies> </dependencyManagement>
一.spring boot2.0.x引用redis的版本須要升級至2.9.0,之前的版本將不支持jedisConnFactory對象的注入,具體報錯以下redis
二.jackson-databind 這個依賴能夠將JSON格式的數據轉化爲類對象,這裏有個很蛋疼的坑,以前項目裏用的版本是2.6.3,升級事後本地項目也運行沒啥問題,上了測試環境就報錯,看了啓動日誌上是缺乏Jackson包裏的某個類致使報錯,上網查了下,這種狀況通常是spring的版本和jackson的版本不兼容致使,新版本已經不支持2.6.3的依賴,因而直接換成最新的版本2.9.0,問題解決。spring
三.HikariCP 數據庫鏈接池 一樣也是版本不兼容,須要升級到2.7.8,親測有效。數據庫
四.spring boot 2.0以前的版本用的spring-cloud-starter-feign,升級事後你會發現這個依賴下有關的類都找不到了,看了下2.0以後的新特性,是改爲了spring-cloud-starter-openfeign,註解類名的路徑也變了,由org.springframework.cloud.netflix.feign.FeignClient變爲org.springframework.cloud.openfeign.FeignClient。mybatis
@Configuration public class DataSourceConfig { @Primary @Bean(name = "pmDataSource") @ConfigurationProperties(prefix = "credit-push-message.jdbc") public DataSource pmDataSource() { return DataSourceBuilder.create().type(HikariDataSource.class).build(); } }
五.配置數據源這裏也發現一個問題,@ConfigurationProperties,新版本將再也不支持自定義的前綴包含大寫或下劃線格式類型,官方給出的規範是小寫加鏈接號。mvc
spring: http: encoding: charset: utf-8 force: false enabled: false mvc: favicon: enabled: false jmx: enabled: false application: name: push-message-gateway server: port: 21102 servlet: context-path: /push-message-gateway ssl: enabled: false error: whitelabel: enabled: false zuul: ignored-services: "*" # 設置忽略的服務 routes: configServer: path: /config/** serviceId: push-message-config gatherServer: path: /gather/** serviceId: push-message-gather messageServer: path: /center/** serviceId: message-center info: app: name: "@parent.artifactId@" #從pom.xml中獲取 description: "@project.description@" version: "@project.version@" spring-boot-version: "@spring.boot.version@" eureka: client: serviceUrl: defaultZone: ${eureka-zone-url} instance: preferIpAddress: true instance-id: ${spring.cloud.client.ip-address}:${server.port}
六.新版本不支持context-path: /push-message-gateway的寫法,必須寫成servlet:context-path: /push-message-gateway,instance-id這裏的客戶端ip地址也不兼容,須要從spring.cloud.client.ipAddress變成spring.cloud.client.ip-address。app
差很少這些,後續遇到其餘問題還會繼續補充。