Spring Boot Hot Swap with Intellij IDEA

Spring Boot 热部署

Spring Boot Application Live Reload (Hot Swap) With Intellij IDEA

Spring Boot 101 (Part 8) - Live Reload / Hot Swap | YouTube

springboot idea 热部署配置

1. 添加 devtool 依赖

   <dependency>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-devtools</artifactId>
     <optional>true</optional>
   </dependency>

   注意：还需要添加 maven 插件，否则无效

   <plugin>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-maven-plugin</artifactId>
     <configuration>
       <fork>true</fork>
     </configuration>
   </plugin>

2. IDEA 开启自动编译

   Settings –> Build, Execution, Deployment –> Compiler –> Build project automatically

3. IDEA 开启 automake 功能

   CTRL + SHIFT + ALT + / –> Registry –> compiler.automake.allow.when.app.running

   注意：调整触发热部署的延迟时间

   compiler.automake.trigger.delay

   compiler.document.save.trigger.delay

4. IDEA 配置更新时触发事件

   Edit Configuration –> On ‘Update’ action –> Update classes and resources

   注意：官方不推荐设置在失焦(On frame deactivation)的时候更新