maven配置热部署

1.引入devtools包

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

2.修改plugin

    <!--增加-->
<configuration>
<fork>true</fork>
</configuration>

<!--增加之后-->
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
</configuration>
</plugin>
</plugins>
</build>

idea不生效参考网上找到答案

1.勾选compile下的自动编译

2.按下Ctrl+Shift+Alt+/,找到Registry，找到compiler.automake.allow.when.app.running勾选