Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:

在pom.xml文件中添加如下代码：

           <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>
                </configuration>
            </plugin>