IDEA配置热部署

在Settings中，找到Compiler选项，把Build project automatically前面打钩

同时按住ctrl+alt+shift+? 键，选择第一个选项 Registry...

找到compiler.automake.allow.when.app.running选项，打钩

Maven的pom.xml中需要加入的配置

<dependency>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-devtools</artifactId>

    <version>2.5.0</version>

</dependency>

<plugin>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-maven-plugin</artifactId>

    <version>2.3.7.RELEASE</version>

    <configuration>

        <fork>true</fork>  <!-- 加入这个 -->

        <mainClass>com.bruce.springboot.demo1.SpringbootDemo1Application</mainClass>

    </configuration>

    <executions>

        <execution>

            <id>repackage</id>

            <goals>

                <goal>repackage</goal>

            </goals>

        </execution>

    </executions>

</plugin>