spring boot内置tomcat设置虚拟目录

//新增如下类，setBaseDirectory即为设置虚拟目录

@AutoConfigureOrder(Ordered.HIGHEST_PRECEDENCE)
@Configuration
@ConditionalOnWebApplication
public class EmbeddedServletContainerAutoConfiguration {
    @Configuration
    @ConditionalOnClass({ Servlet.class, Tomcat.class })
    @ConditionalOnMissingBean(value = EmbeddedServletContainerFactory.class, search = SearchStrategy.CURRENT)
    public static class EmbeddedTomcat {
        @Bean
        public TomcatEmbeddedServletContainerFactory tomcatEmbeddedServletContainerFactory() {
            TomcatEmbeddedServletContainerFactory tomcatEmbeddedServletContainerFactory = new TomcatEmbeddedServletContainerFactory();
            tomcatEmbeddedServletContainerFactory.setBaseDirectory(new File("D://tomcat"));
            return tomcatEmbeddedServletContainerFactory;
        }
    }
}

我们可以查看代码

TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer中

File baseDir = this.baseDirectory != null?this.baseDirectory:this.createTempDir("tomcat");

如果没有baseDirectory则创建一个临时的tmp的目录