pom报错处理

报错：Could not initialize class org.apache.maven.plugin.war.util.WebappStructureSerializer
解决：

	                <plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-war-plugin</artifactId>
				<version>3.3.1</version>
			</plugin>

报错：cvc-elt.1.a: Cannot find the declaration of element \'project\'.
xsi:schemaLocation="http 改为https