一：Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:3.2.0:resources (default-resources) on project springboot_02_helloword: Input length = 1 -> [Help 1]

原因：版本兼容问题

解决办法：更改pom.xml文件如下图所示位置的版本

二：Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:testCompile (default-testCompile) on project springboot_02_helloword: Fatal error compiling

原因：缺少插件

解决办法：在pom.xml中添加如下代码，即可解决

			<plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>utf8</encoding>
                </configuration>
            </plugin>

Yes！