本地打包的APP怎么阻止横屏

"id": "HelloH5",
"name": "HelloH5",
"version": {
"name": "1.0",
"code": "1"
},
"description": "HTML5 Plus能力演示",
"icons": {
"72": "icon.png"
},
"launch_path": "index.html",
"developer": {
"name": "yanyilin",
"email": "yanyilin@dcloud.io",
"url": "http://www.dcloud.io"
},
"orientation": [
"portrait"
],
"permissions": {
"Accelerometer": {
"description": "加速度传感器"
},
"Audio": {
"description": "音频录制与播放"
},
"Cache": {
"description": "缓存管理"
},
"Camera": {
"description": "摄像头"
},
"Console": {
"description": "调试输出日志"
},
"Contacts": {
"description": "系统通讯录"
},
"Device": {
"description": "设备信息"
},
"Downloader": {
"description": "文件下载"
},
"Events": {
"description": "扩展事件"
},
"File": {
"description": "本地文件系统"
},
"Gallery": {
"description": "系统相册"
},
"Geolocation": {
"description": "位置信息"
},
"Invocation": {
"description": "Native.js能力"
},
"Messaging": {
"description": "消息通讯"
},
"Orientation": {
"description": "方向传感器"
},
"Proximity": {
"description": "距离传感器"
},
"Storage": {
"description": "本地数据存储"
},
"Webview": {
"description": "窗口管理"
},
"NativeUI": {
"description": "原生UI控件"
},
"Navigator": {
"description": "浏览器信息"
},
"Uploader": {
"description": "文件上传"
},
"Runtime": {
"description": "运行环境"
},
"XMLHttpRequest": {
"description": "跨域网络请求"
},
"Zip": {
"description": "压缩与解压"
},
"Barcode": {
"description": "二维码扫描"
},
"Maps": {
"description": "地图"
},
"OAuth": {
"description": "登录授权"
},
"Payment": {
"description": "支付"
},
"Push": {
"description": "消息推送"
},
"Share": {
"description": "社交分享"
},
"Speech": {
"description": "语音识别"
},
"Statistic": {
"description": "统计"
}
},
"plus": {
"splashscreen": {
"autoclose": false,
"waiting": true
},
"orientation": [
"portrait-primary",
"portrait-secondary"
],
"popGesture": "close",
"runmode": "liberate",
"signature": "Sk9JTiBVUyBtYWlsdG86aHIyMDEzQGRjbG91ZC5pbw=="
}
}

怎么设置也没有什么效果，生成APP安装到手机上还是横屏，求教大神