idea开发使用外置tomcat配置

1. 添加依赖

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

说明：尽在编译和测试时使用，打包时排除掉

2.重写配置方法

@SpringBootApplication(exclude= {DataSourceAutoConfiguration.class})
public class TestApplication extends SpringBootServletInitializer {
    public static void main(String[] args) {
        SpringApplication.run(TestApplication.class, args);
    }
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder){

        return builder.sources(TestApplication.class);
    }