spring boot jar包tomcat内嵌方式启动

因项目需要，将springMVC工程重构为springboot工程，并且需要用jar包内嵌tomcat的方式在Linux系统使用，

原来工程一直用的是WAR包模式，springMVC转springboot很顺利，基本一天完成了eclipse下本地启动运行正常。

在最后一步打jar，使用java -jar prj.jar运行时遇到了一个坑。

server，controller能够正常访问，但ViewResolver始终找不到正常页面，诡异的是本机dev开发环境下却是正常的，

就这个问题，竟然折腾了两天才搞定，记录如下：

正常配置

1.springboot mvc配置

@Configuration@EnableWebMvcpublic class MvcAdapterConfiguration extends WebMvcConfigurerAdapter {@Override    public void addResourceHandlers(ResourceHandlerRegistry registry) {        registry.addResourceHandler(ConfigUtil.getPropertyValue("fs.mapping")+"/**").addResourceLocations("file:"+ConfigUtil.getPropertyValue("fs.dir")+"/");        super.addResourceHandlers(registry);    }@Override    public void configureDefaultServletHandling(            DefaultServletHandlerConfigurer configurer) {        configurer.enable();    }@Overridepublic void configureViewResolvers(ViewResolverRegistry registry){registry.viewResolver(getViewResolverHTML());registry.viewResolver(getViewResolverJSP());super.configureViewResolvers(registry);}@Bean    public ViewResolver getViewResolverHTML() {        InternalResourceViewResolver resolver = new InternalResourceViewResolver();        resolver.setViewClass(InternalResourceView.class);        resolver.setOrder(0);        resolver.setPrefix("/views/html/pages/");        resolver.setContentType("text/html;charset=UTF-8");        return resolver;    }@Bean    public ViewResolver getViewResolverJSP() {        InternalResourceViewResolver resolver = new InternalResourceViewResolver();        resolver.setOrder(1);        resolver.setPrefix("/views/jsp/pages/");        return resolver;    }}

2.POM将资源加入resources路径

<plugins><!--打包成jar --><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>1.4.2.RELEASE</version><extensions>true</extensions><executions><execution><goals><goal>repackage</goal></goals></execution></executions><configuration><mainClass>${start-class}</mainClass><layout>JAR</layout><fork>true</fork></configuration></plugin><!-- java编译插件 --><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><configuration><source>1.8</source><target>1.8</target><encoding>UTF-8</encoding></configuration></plugin><!-- 资源文件拷贝插件 --><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-resources-plugin</artifactId><configuration><encoding>UTF-8</encoding></configuration></plugin></plugins>

3.（坑点）

     POM中jar包引用要点：

原本工程下引了

<dependency>       <groupId>org.springframework.boot</groupId>       <artifactId>spring-boot-starter-tomcat</artifactId>     </dependency>

最后发现，原来通过内嵌的jar方式启动tomcat，需要用的包不是springboot提供的这个包，而是apache提供的另外一个包

<dependency><groupId>org.apache.tomcat.embed</groupId><artifactId>tomcat-embed-jasper</artifactId></dependency>

必须要注意把<scope>删掉，否则不会打包到jar包中。