springboot打包成war，部署到tomcat无法访问的问题

如题实在是太坑。平时本地测试觉得很方便但是到了项目打包发布掉链子了。如很多帖子一样首先springboot内嵌的tomcat再依赖servlet-api修改启动类继承SpringBootServletInitializer打成war放入tomcat中一、pom.xml删掉内嵌tomcatdependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-tomcat/artifactIdscopeprovided/scope!--打成war的时候打开注释本地开发用内嵌tomcat时加上注释--/dependencydependencygroupIdjavax.servlet/groupIdartifactIdjavax.servlet-api/artifactIdversion3.1.0/version/dependency二、启动类ApplicationSpringBootApplicationComponentScan(basePackagescom.yzker)publicclassApplicationextendsSpringBootServletInitializer{OverrideprotectedSpringApplicationBuilderconfigure(SpringApplicationBuilderapplication){returnapplication.sources(Application.class);}publicstaticvoidmain(String[]args){SpringApplication.run(Application.class,args);}}再打包发布然而然并卵。最后的解决方法是在idea重新配了个Tomcat server。本地调试本地Tomcat能跑起来服务器才能跑起来。打成war包服务器也能跑起来这才是真实的模拟环境。这也是springBoot的缺陷所以大家本地开发尽量少用tomcat插件尽量模拟真实环境部署。一、修改打包形式在pom.xml里设置packagingwar/packaging二、移除嵌入式tomcat插件在pom.xml里找到spring-boot-starter-web依赖节点在其中添加如下代码dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-web/artifactId!--移除嵌入式tomcat插件--exclusionsexclusiongroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-tomcat/artifactId/exclusion/exclusions/dependency三、添加servlet-api的依赖下面两种方式都可以任选其一dependencygroupIdjavax.servlet/groupIdartifactIdjavax.servlet-api/artifactIdversion3.1.0/versionscopeprovided/scope/dependencydependencygroupIdorg.apache.tomcat/groupIdartifactIdtomcat-servlet-api/artifactIdversion8.0.36/versionscopeprovided/scope/dependency四、修改启动类并重写初始化方法我们平常用main方法启动的方式都有一个App的启动类我们需要类似于web.xml的配置方式来启动spring上下文了在Application类的同级添加一个SpringBootStartApplication类其代码如下:importorg.mybatis.spring.annotation.MapperScan;importorg.springframework.boot.SpringApplication;importorg.springframework.boot.autoconfigure.SpringBootApplication;importorg.springframework.boot.builder.SpringApplicationBuilder;importorg.springframework.boot.web.support.SpringBootServletInitializer;SpringBootApplicationMapperScan(com.lanhaifeng.boke.mapper)//配置扫描mapper接口的地址publicclassBokeApplicationextendsSpringBootServletInitializer{publicstaticvoidmain(String[]args){SpringApplication.run(BokeApplication.class,args);}OverrideprotectedSpringApplicationBuilderconfigure(SpringApplicationBuilderapplication){returnapplication.sources(BokeApplication.class);}}五、使用maven打包mvn cleanpackage另这是收集的一些学习资料强烈建议学习一下https://pan.quark.cn/s/b5638e1405d7