idea下springboot项目配置文件application.properties不生效的问题

1.可能pom.xml 的 <packaging>标签 设置的缺省值是 pom，

加上<packaging>jar</packaging>即可

2.pom.xml添加如下配置，包含资源文件夹

<build>
    <resources>
        <resource>
            <!--java文件的路径-->
            <directory>src/main/java</directory>
            <includes>
                <include>**/*.*</include>
            </includes>
        </resource>
        <resource>
            <!--资源文件的路径-->
            <directory>src/main/resources</directory>
            <includes>
                <include>**/*.*</include>
            </includes>
        </resource>
    </resources>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>

</build>