SpringBoot1.5.x升级到2.X经验总结
最近因为有安全需求和其他方面的需求，我们项目的springboot整体要求升级到较高的版本。 因为我们以前版本是
这次升级把目的版本号定到了
2.0.1.RELEASE
以下是一些经验总结，供大家参考
针对配置文件的变更：
一、多数据源配置中数据库连接
url:
变更为
jdbc-url:
二、添加新的日志配置方式
application.yml
logging:
config: classpath:logback-spring.xml
最后附logback-spring.xml文件内容
三、redis配置变更
pool.max-idle: 8 # pool settings ...
pool.min-idle: 1
pool.max-active: 8
pool.max-wait: -1
变更为
jedis:
pool.max-idle: 8 # pool settings ...
pool.min-idle: 1
pool.max-active: 8
pool.max-wait: -1
四、context-path放到了servlet下
server:
tomcat:
max-http-post-size: -1
context-path: /
port: 9999
变更为
server:
tomcat:
max-http-post-size: -1
servlet:
context-path: /
port: 9999
五、multipart 相关放到了servlet。这表明以后springboot可能不只添加servlet一种方式，可能还会添加其他的容器
http:
multipart:
max-file-size: 5MB
max-request-size: 100MB
变更为
servlet:
multipart:
max-file-size: 5MB
max-request-size: 100MB
六、mybatis的扫描
#mybatis.mapperLocations=classpath*:/mybatis/*/*Mapper.xml
修改为：
mybatis.mapper-locations=classpath*:/mybatis/*/*Mapper.xml
七、启用外部配置文件
–spring.config.location 变更为 --spring.config.additional-location
nohup java -jar service.caiyouxi.com-1.0-SNAPSHOT.war --spring.config.location=application.properties &
修改为
nohup java -jar service.caiyouxi.com-1.0-SNAPSHOT.war --spring.config.additional-location=application.properties &
八、content-type放到了servlet下面
#spring.thymeleaf.content-type=text/html
修改为
spring.thymeleaf.servlet.content-type=text/html
九、mybatis别名包
#mybatis.typeAliasesPackage=com.caiyouxiouxi
修改为
#mybatis别名包
mybatis.type-aliases-package=com.caiyouxi.order
十、WebAppConfig变更
由
spring2.x中即可以继承WebMvcConfigurationSupport 也可以实现WebMvcConfigurer。但是老的继承WebMvcConfigurerAdapter已经过时了
MyWebAppConfig extends WebMvcConfigurerAdapter
变更为
MyWebAppConfig extends WebMvcConfigurationSupport {
/**
* springboot 2.X
* implements WebMvcConfigurer
* extends WebMvcConfigurationSupport
*
* springboot 1.5.x
* extends WebMvcConfigurerAdapter
*/
遇到的错误：
‘gsonBuilder’ defined in class path resource [org/springframework/boot/autoconfigure/gson/GsonAutoC
针对POM的变更：
一、指定编译版本和JAVA版本
因为springboot2.X针对JAVA版本最低要求为1.8
Spring Boot 2.0 requires Java 8 as a minimum version.
UTF-8
UTF-8
UTF-8
1.8
二、springboot对 webflux进行了支持，为了方便，我把
spring-boot-starter-web 和spring-boot-starter-webflux 都进行了引用
Web Starter as a Transitive Dependency
Previously several Spring Boot starters were transitively depending on Spring MVC with spring-boot-starter-web. With the new support of Spring WebFlux, spring-boot-starter-mustache, spring-boot-starter-freemarker and spring-boot-starter-thymeleaf are not depending on it anymore. It is the developer’s responsibility to choose and add spring-boot-starter-web or spring-boot-starter-webflux.
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-starter-webflux
三、不再指定mysql-connector-java的版本
mysql
mysql-connector-java
runtime
四、mybatis依赖升级为2.0.1
org.mybatis.spring.boot
mybatis-spring-boot-starter
2.0.1
五、针对druid的依赖由1.1.3升级为1.1.10
com.alibaba
druid-spring-boot-starter
1.1.10
六、fastjson 升级到1.2.58
com.alibaba
fastjson
1.2.58
七、dom4j 和jaxen不再指定版本
dom4j
dom4j
jaxen
jaxen
八、httpcomponents包下的引用不再指定版本号
org.apache.httpcomponents
httpclient
org.apache.httpcomponents
httpmime
org.apache.httpcomponents
httpcore
九、定时任务的依赖变更，springboot2.x对 quartz有了支持
原先的
org.quartz-scheduler
quartz
1.8.5
改为
org.springframework.boot
spring-boot-starter-quartz
十、okhttp3由原来的3.3.0升级至3.14.2
com.squareup.okhttp3
okhttp
3.14.2
十一、如果用到了guava cache要排除对应的包,springboot2.x不再支持guava cache。
并且把GuavaConfig中的个性化配置注释掉.
GuavaCacheManager
Support for Guava has been dropped in Spring Framework 5. If you were are using GuavaCacheManager, Caffiene (com.github.ben-manes.caffeine:caffeine) and CaffeineCacheManager should be used instead.
org.springframework.boot
spring-boot-starter-cache
com.google.guava
guava
19.0
十二、surefire-junit3升级到surefire-junit4
org.apache.maven.surefire
surefire-junit4
2.22.2
附件：
logback-spring.xml
${APP_NAME}
info
${CONSOLE_LOG_PATTERN}
UTF-8
${log.path}/log_debug.log
%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n
UTF-8
${log.path}/debug/log-debug-%d{yyyy-MM-dd}.%i.log
${MAXFILESIZE}
${MAXHISTORY}
debug
ACCEPT
DENY
${log.path}/log_info.log
%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n
UTF-8
${log.path}/info/log-info-%d{yyyy-MM-dd}.%i.log
${MAXFILESIZE}
${MAXHISTORY}
info
ACCEPT
DENY
${log.path}/log_warn.log
%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n
UTF-8
${log.path}/warn/log-warn-%d{yyyy-MM-dd}.%i.log
${MAXFILESIZE}
${MAXHISTORY}
warn
ACCEPT
DENY
${log.path}/log_error.log
%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n
UTF-8
${log.path}/error/log-error-%d{yyyy-MM-dd}.%i.log
${MAXFILESIZE}
${MAXHISTORY}
ERROR
ACCEPT
DENY
参考：
Spring Boot 2.0 Release Notes
Spring Boot 2.0 Migration Guide