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OSGI Unresolved requirement: Import-Package: com.pi4j.io.gpio

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问题 I want to write an OSGI Bundle (Eclipse SmartHome Binding) for the GPIO's of a Raspberry Pi. For the GPIO's i need to include the Pi4J libraries. I added them into a lib folder in my project folder and added the pi4j-core.jar to my Build Path. This is my code: /** * Copyright (c) 2014 openHAB UG (haftungsbeschraenkt) and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this

SSE not working in android by using domain name

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问题 I am using this URL from Ajax “https://username%40gmail.com:password@home.myopenhab.org/rest/events?topics=smarthome/" to get SSE in client side app using Cordova. its working fine on IOS but its not working on android. for same URL if I give IP like "http://192.168.0.1/rest/events?topics=smarthome/” its working fine on both IOS and android. my code goes like this var eventSource = new EventSource(" +“url”+ /rest/events?topics=smarthome/*"); eventSource.addEventListener(‘message’, function

在Surface上安装Ubuntu 16.04

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Surface上面可以安装Ubuntu，而且比Windows还快、还省电！有一个老的Surface Pro，因为换了Macbook Pro的原因，曾经被果断地打入冷宫。最近大扫除，把这货翻出来了，准备装个Ubuntu当服务器使。中间还是费了些周折，写出来帮大家少走点弯路。需要几个步骤：下载Ubuntu镜像。制作Ubuntu的启动U盘。修改Bios锁定，设为U盘启动。安装Ubuntu 16.04 LTS。安装Docker和OpenHab。 1、下载Ubuntu镜像。先搞了个Ubuntu Desktop 15.04，结果装到一半死掉了。试了几次回复不了，放弃。在笔记本上，下载Ubuntu 16.04 LTS（ http://www.ubuntu.com ）64位的，先烧到一个U盘上，做成自动的Ubuntu安装盘。 2、制作Ubuntu的启动U盘。需要一个全空的U盘，启动U盘制作时会将原来的内容全部擦除！！！将全空的U盘插入Macbook Pro，首先查看U盘的标识符： diskutil list ** 假设这里是/dev/disk6，一定不要搞错哦！后面的操作会将该盘全部擦除！！！** 卸载U盘，让后面的dd操作独占磁盘，按裸设备写入镜像。 diskutil umountdisk /dev/disk6 不要用MacOS系统的“弹出设备”操作，如果误用了