IDEA读取properties文件报错：cannot be opened because it does not exist错误解决方法

原因是IDEA编译java文件只把.class文件放到target目录下，而不会把静态文件加入。

 

解决办法：在pom文件中加入resources标签

<build>    
    <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.*</include>
                </includes>
                <excludes>
                    <exclude>**/*.java</exclude>
                </excludes>
            </resource>
        </resources>
</build>