【发布时间】：2020-10-21 18:27:50
【问题描述】：
我正在构建一个自定义 SAPUI5 应用程序，它由页面标题内容中的七个图表 (sap.viz.ui5.controls.VizFrame)（嵌套在 sap.suite.ui.commons.ChartContainer 中）和主要内容区域中的网格表 (sap.ui.table.Table) 组成。图表和表格的数据由 OData V2 服务提供，该应用在最新版本 (1.81.0) 上独立运行。
问题是应用的加载时间过长。它需要 7 到 20 秒。这对于“更复杂”的应用程序是否常见？我试图找到瓶颈，但一切看起来都很好。许多网络请求被缓存（它们需要 0 毫秒），但是它们之间有一点延迟，我不明白为什么。此外，控制台中有以下警告，尽管我在 index.html 文件中使用了 data-sap-async="true"：
[弃用] 主线程上的同步 XMLHttpRequest 已弃用，因为它会对最终用户的体验产生不利影响。如需更多帮助，请查看https://xhr.spec.whatwg.org/。 [syncXHRFix-dbg.js:211:15]
我的 index.html 和 manifest.json 的代码 sn-ps
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Loading - Customer Fact Sheet</title>
<script id="sap-ui-bootstrap"
src="resources/sap-ui-core.js"
data-sap-ui-theme="sap_fiori_3"
data-sap-ui-resourceroots='{"com.schott.fiori.customerfactsheet.customerfactsheet-fiori3": "./"}'
data-sap-ui-compatVersion="edge"
data-sap-ui-oninit="module:sap/ui/core/ComponentSupport"
data-sap-ui-async="true"
data-sap-ui-frameOptions="trusted">
</script>
<link href="https://www.schott.com/static/assets/gfx/favicon/SCHOTT_16.png" rel="shortcut icon" type="image/png" />
</head>
<body class="sapUiBody">
<div data-sap-ui-component data-name="com.schott.fiori.customerfactsheet.customerfactsheet-fiori3" data-id="container" data-settings='{"id" : "customerfactsheet-fiori3"}'></div>
</body>
</html>
{
"_version": "1.12.0",
"sap.app": {
"id": "com.schott.fiori.customerfactsheet.customerfactsheet-fiori3",
"type": "application",
"i18n": "i18n/i18n.properties",
"applicationVersion": {
"version": "1.0.0"
},
"title": "{{appTitle}}",
"description": "{{appDescription}}",
"sourceTemplate": {
"id": "servicecatalog.connectivityComponentForManifest",
"version": "0.0.0"
},
"dataSources": {
"YODATA_SD_CFS_MATRIX_SRV": {
"uri": "/sap/opu/odata/sap/YODATA_SD_CFS_MATRIX_SRV/",
"type": "OData",
"settings": {
"localUri": "localService/metadata.xml"
}
}
}
},
"sap.ui": {
"technology": "UI5",
"icons": {
"icon": "",
"favIcon": "",
"phone": "",
"phone@2": "",
"tablet": "",
"tablet@2": ""
},
"deviceTypes": {
"desktop": true,
"tablet": true,
"phone": true
}
},
"sap.ui5": {
"flexEnabled": false,
"rootView": {
"viewName": "com.schott.fiori.customerfactsheet.customerfactsheet-fiori3.view.Main",
"type": "XML",
"async": true,
"id": "Main"
},
"dependencies": {
"minUI5Version": "1.65.6",
"libs": {
"sap.ui.layout": {},
"sap.ui.core": {},
"sap.m": {}
}
},
"contentDensities": {
"compact": true,
"cozy": false
},
"models": {
"i18n": {
"type": "sap.ui.model.resource.ResourceModel",
"settings": {
"bundleName": "com.schott.fiori.customerfactsheet.customerfactsheet-fiori3.i18n.i18n"
}
},
"": {
"type": "sap.ui.model.odata.v2.ODataModel",
"settings": {
"defaultOperationMode": "Client",
"defaultBindingMode": "OneWay",
"defaultCountMode": "Request"
},
"dataSource": "YODATA_SD_CFS_MATRIX_SRV",
"preload": true
}
},
"resources": {
"css": [{
"uri": "css/style.css"
}]
},
"routing": {
"config": {
"routerClass": "sap.m.routing.Router",
"viewType": "XML",
"async": true,
"viewPath": "com.schott.fiori.customerfactsheet.customerfactsheet-fiori3.view",
"controlAggregation": "pages",
"controlId": "app",
"clearControlAggregation": false
},
"routes": [{
"name": "RouteMain",
"pattern": "RouteMain",
"target": ["TargetMain"]
}],
"targets": {
"TargetMain": {
"viewType": "XML",
"transition": "slide",
"clearControlAggregation": false,
"viewId": "Main",
"viewName": "Main"
}
}
}
},
"sap.platform.hcp": {
"uri": "webapp",
"_version": "1.1.0"
}
}
我的网络标签的屏幕截图
【问题讨论】：
标签： javascript xmlhttprequest sapui5