发表于
2016-06-28 06:35:00
The SQL Server Service Broker for the current database is not enabled, and as a result query notifications are not supported. - Insus.NET
【摘要】当Insus.NET尝试解决此问题《When using SqlDependency without providing an options value, SqlDependency.Start() must be called prior to execution of a command ad阅读全文
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(47)
发表于
2016-06-28 03:22:00
When using SqlDependency without providing an options value, SqlDependency.Start() must be called prior to execution of a command added to the SqlDependency instance. - Insus.NET
【摘要】在调试SignalR程序时，提示一个异常：When using SqlDependency without providing an options value, SqlDependency.Start() must be called prior to execution of a command阅读全文
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(53)
发表于
2016-06-25 12:25:57
Up1 – Client Side Encrypted Image Host
发表于
2016-06-22 07:08:02
C#遍历文件夹下所有文件最短代码
以前用C#遍历文件夹下所有的文件，都是写一个递归来做，最近发现DotNet 4.0里直接有了递归遍历文件夹访问所有文件的API，返回的是IEnumerable<string>，直接用一个foreach就可以遍历了。下面是代码示例using System;
using System.IO;
class Program
{
static void Main()
{
string[] files =Directory.GetFiles(@"C:\files",
"*.*", SearchOption.AllDirectories);
foreach (string file in files)
{
Console.WriteLine(file);
}
}
}输出结果如下所示：c:\files\index.html
c:\files\style.css
c:\files\images\logo.png
c:\files\images\picture.jpg
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(62)
发表于
2016-06-22 01:10:38
hostmada-3.4美元/新加坡/512m内存/50g硬盘/500g流量
发表于
2016-06-21 21:13:14
Xamarin: Making Your iOS Apps IPv6 Ready
发表于
2016-06-16 15:54:19
Android百度地图应用之MapFragment的使用
发表于
2016-06-16 15:12:40
How to auto startup Oracle Instance when OS is up？
其实在以前的博客中我写过类似的日志，但是由于以前的域名过期了，所以日志也找不到了。今天，想起来了，就记录一下，方便自己，也方便他人。本文的背景说明：RHEL 5 Update 10 + Oracle Database 11g standalone。实现开机自动启动数据库实例的方法其实有很多种，下面会描述两个我可以想到的方法（也许有更多，欢迎留言跟帖，共同讨论，共同进步）。一、DIY shell脚本实现。这种方式实现的思路显而易见，手动编写一段shell脚本，在开机的时候调用就可以了。shell脚本内容如下：[root@dg1 ~]# ls /home/oracle | grep --color sh
do_oracle.sh
[root@dg1 ~]#
[root@dg1 ~]# cat /home/oracle/do_oracle.sh
#!/bin/bash
# Intro
echo "---> Do Oracle in Shell"
echo ""
# Variable
s_instance_name=$1
s_action=$2
#echo "Instance is: $s_instance_name"
#echo "Action is: $s_action"
export ORACLE_SID=$s_instance_name
if [ $s_action
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(81)
发表于
2016-06-14 10:19:58
Coursera课程下载和存档计划（二）
基于课程图谱的Coursera爬虫过了一遍目前Coursera旧平台的课程数据，提取其中几个有用信息作为Coursera课程下载的速查表，大家可以基于coursera-dl和课程短连接（Session Slug)下载相关的课程，具体下载方法可参考上一篇文章：Coursera课程下载和存档计划（一）。另外新建了一个 Github 项目：Coursera Archive，提供Markdown和Excel两个版本的list。之后计划将相关的网盘信息也汇总上去，欢迎大家一起参与下载和分享。总计516个课程，具体信息可参考下表：Course NameCourse Source UrlSession SlugContraception: Choices, Culture and Consequenceshttps://www.coursera.org/course/contraceptioncontraception-002Introduction to Computational Arts: Processinghttps://www.coursera.org/course/compartsprocessingcompartsprocessing-001Introduction to Computing 计算概论Ahttps://www.coursera.org/course/pkuicpk
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(186)
发表于
2016-06-12 13:57:32
Node distributed locking using redis
最近做游戏的PVP系统，用到了redis 的分布式锁，在github上找到了redislock分布式锁看了文档之后，自己也做了个小测试，redislocktest//redis.js
var redis = require('redis');
var redislock = require('redislock');
var client = redis.createClient('127.0.0.1',6379);
exports.lockPlayer = function(key, callback){
var playerlock = redislock.createLock(client);
playerlock.acquire(key+":lock", function (err) {
callback(err,playerlock);
});
}
exports.releasePlayerLock = function(playerlock,callback){
playerlock.release(function (err) {
callback(err);
});//test.js
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(40)
发表于
2016-06-12 03:40:43
12c的Data guard中将废弃使用using current logfile
发表于
2016-06-11 16:37:35
Visualize completeness of biodiversity data
发表于
2016-06-11 14:01:16
APIs.guru Joins Growing List of API Indexes
APIs.guruis the latest entry into the API definition indexing, curation, and discovery space.The open source (MIT-licensed) community curated index currently includes 236 API descriptions which cover 6,271 endpoints. APIs.guru is focused on becoming the "Wikipedia for REST APIs."APIs.guru is entering an increasingly crowded market with other API indexing sites includingThe API Stack,API Commons,APIs.io,AnyAPI, and older indexes such asProgrammableWeb’s API Directory. These API indexes share a common goal saysAPIEvangelist.combloggerKin Lane:Developers around the world are using
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(17)
发表于
2016-06-10 18:01:59
F# Not just for finance
发表于
2016-06-10 17:02:00
Using Spire.PDF in ASP.NET
发表于
2016-06-10 12:21:42
[原]Golang服务器，Unity客户端 通信
发表于
2016-06-06 21:20:00
Vue: from view to view
This is a brief of my #vuejs Japan lightning talk. A concept on how to
manage your vue files.A basic structure for your vue files:App.vue
views/
Home.vue
...
components/
Avatar.vue
...
widgets/
ChatPopup.vue
...App.vueThe entry point for your project.If you are using vue-router, it is the file for<router-view>.viewsViews are the pages. If you are using vue-router, it is the component that<router-view>represents right now.Every vue file inviewsdirectory is a web page.componentsComponents are just components. A component is a UI related module, it only
cares about UI. It
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(38)
发表于
2016-06-06 17:53:39
Keeping your private information secure in 2016
发表于
2016-06-06 02:36:31
jQuery 3.0
jQuery 3.0Is there a necessity to talk much about jQuery? I mean, come on, everybody knows it. It’s a library that focuses on the interaction between HTML and JavaScript and helps to get access to the DOM elements and manipulate them. Many other libraries were developed based on jQuery.The state of the jQuery library at the time of writing this is version 3.0 Release Candidate. Let’s check the list of updates.jQuery 3.0 Release Candidate FeaturesFirst of all, jQuery 3.0 will become the only and main version of the library. The 1.12 and 2.2 branches won’t get new features. The new version of jQ
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(62)
发表于
2016-06-04 07:58:01
Packet Capturing MySQL with Rust – AgilData
发表于
2016-06-02 22:29:58
Integrating With Salesforce Using Scala
Java developers are quickly moving to Scala, because it’s easier and faster to write, but compiles into Java-compatible byte code. Scala is like Python, but as fast as Java, and allows you to use existing Java libraries. To use Scala with Salesforce, you use the REST API, which allows you to access any object within Salesforce and access its data.In this blog post you will learn how to use Scala language to make REST APIs calls to Salesforce. The samples are designed to quickly ramp up your team, and are structured to be generic enough that they can be u
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(7)
发表于
2016-06-02 19:45:44
$scope.$watch and controllerAs
You know that by now your Angular code should be pretty$scopefree. The controllerAs syntax makes it so you shouldn’t be accessing$scopein order to store information on it.But, scopes are still an important part of Angular and sometimes you have to use them.One not-so-rare example is the$scope.$watch()function. With the introduction of controllerAs syntax we now have 2 seemingly interchangeable ways to use it. But, they are not exactly the same and I think you should only be using one. Let’s quickly go over it.The olden daysIn the pre-controllerAs days we would put everything directly on the$sc
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(18)
发表于
2016-05-31 21:33:22
Arc – secure file archiver
arc – secure file archiverarc is a file archiver designed to manage secure and stable archives suitable for storage and transmission. arc archives are standard tar archives compressed with gzip and then encrypted with the XChaCha20+ Poly1305 authenticated encryption mode.arc is distributed as open source code and static executables with no external dependencies.Securityarc archives are designed for secure storage and transmission and must not allow decryption or tampering by an attacker without the appropriate encryption key.However, arc has not been subject to peer review and the specif
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(6)
发表于
2016-05-31 08:17:28
一个简单的MemoryCache的实现
发表于
2016-05-31 00:00:37
[.NET Core].NET Core R2安装教程及Hello示例
发表于
2016-05-29 14:57:30
15款很实用的 SASS 和 Compass 工具
SASS是CSS的扩展，增加了嵌套规则，变量，混入功能等很多更多。它简化了组织和维护CSS代码的成本。Compass是一个开源的 CSS 框架，使得使用 CSS3 和流行的设计模式比以往任何时候都更容易。在这篇文章中，我们已经收集了一组有用的 Sass 和Compass工具，将帮助您快速构建 Web 应用程序。1.Compass.appCompass is a stylesheet authoring framework that makes your stylesheets and markup easier to build and maintain. With compass, you write your stylesheets in Sass instead of plain CSS. Compass.app is a menubar only app for Sass and Compass. It helps designers compile stylesheets easily without resorting to command line interface. Compass.app is written in Java (JRuby), and works in mac, linux and pc. You do not need to install R
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(280)
发表于
2016-05-29 00:30:55
深入理解DIP、IoC、DI以及IoC容器
发表于
2016-05-26 15:34:56
Top 10 Most Viewed Articles Of AngularJS
We have compiled a list of top 10 most viewed AngularJS articles. Check them out and don’t forget to give your feedback and share them with your friends and co-workers.How To Bind Data With AngularJSbyUpendra Pratap ShahiAngularJS is a powerful programming framework based on JavaScript provided by Google. This article imparts knowledge on how to bind textbox and value using AngularJS.Basics of AngularJS: Part 1byGowtham RajamanickamAngularJS is open source, completely free and used by thousands of developers around the world. It is licensed under the Apache license version 2.0. This article br
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(23)
发表于
2016-05-26 01:54:43
C#虚方法的重写
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace VirtualOverrideTest { public class FatherClass { public string Name { get { return Name; } set { Name = value; } } public FatherClass(string name) { this.WriteName(name); } public virtual void WriteName(string name) { this.Name = name + "Father"; } } public class SonClass: FatherClass { public string Name = null; public SonClass(string name): base(name) { } public override void WriteName(string name) { this.Name += name + "son"; } } class Program { static void Main(stri
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(24)
发表于
2016-05-24 15:14:38
iOS 苹果官方Demo合集
