1.在maven中添加如下配置
<dependency>
<groupId>org.springframework</groupId>
<artifactId>springloaded</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
</dependency>
更改開發工具(idea)配置
(1)進入設置setting,Build,Execut, Deployment -> Compiler 勾選右側的Build Project automatically
(2)開啓項目運行時自動build,在打開的頁面上快捷鍵ctrl + shift + a 搜索命令:registry –> 勾選compiler.automake.allow.when.app.running