spring-boot-devtools ineffective heat load

In the development process, it is possible to modify update is desired to modify, i.e. thermal loading, but spring-boot-devtools ineffective. This is mainly for two reasons.

A, spring-boot-maven-plugin plugin is not configured ,as follows:

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

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <!-- 不配置热加载也没效果 -->
                <configuration>
                    <fork>true</fork>
                </configuration>
            </plugin>
        </plugins>
    </build>

Second, the operation mode is java -jar target / xxx.jar, this approach is a production application, this will not work,

Execution of the program can choose to run maven plugin provides:

mvn spring-boot:run

Specify the configuration document:

mvn spring-boot:run -Dspring-boot.run.profiles=test

Third, in addition, IDEA is not automatically compiled, you can use shortcut keys to perform manually compile: Ctrl + F9, if it is to update a single file using the shortcut Ctrl + Shift + F9