springboot打war包部署到tomcat

1：build.gradle

plugins {
    id 'org.springframework.boot' version '2.1.5.RELEASE'
    id 'java'
}
 
apply plugin: 'io.spring.dependency-management'
 
group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'
 
apply plugin: 'war'
 
repositories {
    mavenCentral()
}
 
dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-web'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
    compile group: 'com.google.code.gson', name: 'gson', version: '2.8.2'
 
    providedRuntime('org.springframework.boot:spring-boot-starter-tomcat')
}

增加：

apply plugin: 'war'

providedRuntime('org.springframework.boot:spring-boot-starter-tomcat')

2：application.properties中增加

spring.jmx.enabled=false

3：入口程序继承SpringBootServletInitializer，覆写configure方法

package com.example.demo;
 
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
 
@SpringBootApplication
public class DemoApplication extends SpringBootServletInitializer {
 
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(DemoApplication.class);
    }
 
    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }
 
}