记录一次 Liferay7中MvcPortLet引入外部js第一次不加载的问题解决

创建一个新的liferay module。首先我创建的是MVC Portlet：

需要添加标签：

javax.portlet.expiration-cache=0

修改@Component控制器中标签为如下配置即可：

@Component(
	immediate = true,
	property = {
		"com.liferay.portlet.display-category=category.sample",
		"javax.portlet.expiration-cache=0",
		"com.liferay.portlet.instanceable=true",
		"com.liferay.portlet.header-portlet-css=/css/main.css",
		"com.liferay.portlet.footer-portlet-javascript=/js/jquery-3.5.1.js",
		"com.liferay.portlet.footer-portlet-javascript=/js/axios.min.js",
		"javax.portlet.display-name=EmailLiferay",
		"javax.portlet.init-param.template-path=/",
		"javax.portlet.init-param.view-template=/view.jsp",
		"javax.portlet.name=" + EmailLiferayPortletKeys.EMAILLIFERAY,
		"javax.portlet.resource-bundle=content.Language",
		"javax.portlet.security-role-ref=power-user,user"
	},
	service = Portlet.class
)