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红帽大神制作 Linux 工具，用于旧款罗技无线键盘加密设置

Hans 的博客：https://hansdegoede.livejournal.com/24732.html 本文转自OSCHINA 本文标题：红帽大神制作 Linux 工具，用于旧款罗技无线键盘加密设置

2021-04-07

爬取没有设置 robots.txt 的网站，有无法律风险？

如果要爬取的网站上没有设置robots.txt，那么是不是代表默认都允许爬取呢？有没有法律风险呢？

2020-07-16

Google Chrome 浏览器重新设计“隐私和安全设置”页面

Chromium 小组重新设计了 Chrome 浏览器的“隐私设置”或 Chrome 80 中的“隐私和安全设置”卡。

2019-11-16

Spark on Phoenix 4.x Connector：如何在Spark侧设置Phoenix参数

有时在读取Phoenix时需要设置Phoenix的一些参数，例如Phoenix为了保障数据库的稳定性，默认开了索引包含，即查询Phoebe表必须要带上索引或者主键字段作为过滤条件。

2019-07-21

阿里云ECS云服务器初始化设置教程方法

2）自动快照策略将失效，需要重新设置。3）您在操作前做好相关备份，以免数据丢失给你造成损失。初始化服务器后（更换系统盘）数据就找不回来了，然后点击“确定，更换系统盘”。

2019-05-05

简单3步，云盒子企业网盘的文档权限设置

而在企业网盘的运用中，文档权限设置是用户非常重视的一个操作，权限设置是否满足需求、是否易用成了用户选购企业网盘产品的基本条件。

2019-04-01

备战京东双11-如何配置MySQL数据库超时设置

最近备战京东双11，在配置MySQL的超时配置发现有很多地方可以设置。这么多超时的配置有什么影响，以及配置会有什么影响呢？今天的文章就给大家分析一下。 1.

2018-11-28

C#：设置CefSharp的一些参数，比如忽略安全证书

------------吾亦无他,唯手熟尔，谦卑若愚，好学若饥------------- 本次记录如何设置CefSharp忽略安全证书，以及他的一些其他配置参考网址： https://peter.sh

2018-07-09

C# 操作PDF 图层（Layer）——添加、删除图层、设置图层可见性

此外，对于页面中已有的图层我们也可以进行设置图层可见性、删除图层等操作。因此，在本篇文章中，将介绍如何在C#中进行PDF图层的操作。

2018-05-07

springboot + shiro之登录人数限制、登录判断重定向、session时间设置

= null) { // 设置会话的kickout属性表示踢出了 kickoutSession.setAttribute("kickout", true); } } catch (Exception e

2018-04-24

[Android疑难杂症]动态设置TextView的width不起作用

mLrcTextShadow.getLayoutParams(); width+=5; lp.width=width; mLrcTextShadow.setLayoutParams(lp); 代码说明：关键是重新设置

2017-12-04

1.测算控件宽高初始化UI时,无法直接通过getWidth()或getHeight()获取到控件的宽度或高度。可采用定时测算去获取控件的宽度/高度,方法如下: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 //每隔10毫秒测算一次宽度,直到测算完毕 mMeasureAction = new Runnable() { @Override public void run() { if (mLayout_map.getWidth() != 0 ) { Log.i( "w" , mLayout_map.getWidth() + "" ); Log.i( "h" , mLayout_map.getHeight() + "" ); } else { mLayout_map.postDelayed(mMeasureAction, 10 ); } } }; mLayout_map.postDelayed(mMeasureAction, 10 ); 参考资料：http://blog.163.com/zhaolin53636848@126/blog/static/490866682012065373798/ 2.动态修改控件的宽高比如，将imageview的宽度改为200，高度改为宽度的3/4。其中RelativeLayout是imageview的父布局，方法如下: 1 import android.widget.RelativeLayout.LayoutParams; 1 2 3 4 5 6 int imgWeight = 200 ; RelativeLayout.LayoutParams sp_params = new RelativeLayout.LayoutParams( LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); sp_params.width = imgWeight; sp_params.height = imgWeight * 3 / 4 ; imageView.setLayoutParams(sp_params); 本文转自 glblong 51CTO博客，原文链接：http://blog.51cto.com/glblong/1358564，如需转载请自行联系原作者

2017-11-23

iOS设置某个界面强制横屏,进入就横屏竖屏

原文地址：http://www.cnblogs.com/niit-soft-518/p/5611298.html 方案一: 使用presentViewController 1.首先设置项目支持的屏幕方向

2017-11-16

iOS中通过设置CSS改变WebView字体大小，颜色，背景颜色

标签：因为WebView自带的属性是不可以改变字体大小颜色这些需求的，只能通过改变css样式，内置来解决。在百度上搜了半天很多不靠谱，现在给出几种解决方案如下: 1.第一种方式：在WebView的代理方法webViewDidFinishLoad中：字体大小：[webView stringByEvaluatingJavaScriptFromString:@"document.getElementsByTagName(‘body‘)[0].style.webkitTextSizeAdjust= ‘12%‘"]; 字体颜色：[webView stringByEvaluatingJavaScriptFromString:@"document.getElementsByTagName(‘body‘)[0].style.webkitTextFillColor= ‘green‘"]; 背景颜色：[webView stringByEvaluatingJavaScriptFromString:@"document.getElementsByTagName(‘body‘)[0].style.background=‘#F6F7F3‘"]; 2.第一种方式：在下面可以通过改变margin大小来改变webview文字距离边距大小，13代表字体大小，self.strBookTips是要被操作的字符串。 NSString*BookStr = [NSStringstringWithFormat:@"<html> \n" "<head> \n" "<style type=\"text/css\"> \n" "body {margin:10;font-size: %d;}\n" "</style> \n" "</head> \n" "<body>%@</body> \n" "</html>",13,self.strBookTips]; [self.webViewloadHTMLString:BookStrbaseURL:nil]; 3.第三种方式，这种缺少了改变背景颜色 NSString* formatString =@"<span style=\"font-size:13px;color:#7E7C8A\">%@</span>"; NSString* htmlString = [NSStringstringWithFormat:formatString,self.strBookTips]; [self.webViewloadHTMLString:BookStrbaseURL:nil]; 本文转自卓行天下 51CTO博客，原文链接：http://blog.51cto.com/9951038/1750822，如需转载请自行联系原作者

2017-11-14

Recovering unassigned shards on elasticsearch 2.x——副本shard可以设置replica为...

Recovering unassigned shards on elasticsearch 2.x 摘自：https://z0z0.me/recovering-unassigned-shards-on-elasticsearch/ I got accross the problem when decided to add a node to the elasticsearch cluster and that node was not able to replicate the indexes of the cluster. This issue is usually happens when there is not enough disk space available, or not available master or different elasticsearch version. While my servers had more than enough disk space and also the master was available with the help of theelasticsearch discussI found out that the new node was having a different version than old nodes. Basically while installing on Debian jessie I just runapt-get install elasticsearchwhich ended up installing the latest available version. To install a specific version of the elasticsearch you prety much need to add={version}. #apt-get install elasticsearch={version} Now that I have identified the reasons for unallocated shards and successfully downgraded the elasticsearch to the required version by running the command above after starting the node the cluster was still in red state with unassigned shards all over the place: #curl http://localhost:9200/_cluster/health?pretty { "cluster_name" : "z0z0", "status" : "red", "timed_out" : false, "number_of_nodes" : 3, "number_of_data_nodes" : 3, "active_primary_shards" : 6, "active_shards" : 12, "relocating_shards" : 0, "initializing_shards" : 0, "unassigned_shards" : 8, "delayed_unassigned_shards" : 0, "number_of_pending_tasks" : 0, "number_of_in_flight_fetch" : 0, "task_max_waiting_in_queue_millis" : 0, "active_shards_percent_as_number" : 60.0 } #curl http://localhost:9200/_cat/shards site-id 4 p UNASSIGNED site-id 4 r UNASSIGNED site-id 1 p UNASSIGNED site-id 1 r UNASSIGNED site-id 3 p STARTED 0 159b 10.0.0.6 node-2 site-id 3 r STARTED 0 159b 10.0.0.7 node-3 site-id 2 r STARTED 0 159b 10.0.0.6 node-2 site-id 2 p STARTED 0 159b 10.0.0.7 node-3 site-id 0 r STARTED 0 159b 10.0.0.6 node-2 site-id 0 p STARTED 0 159b 10.0.0.7 node-3 subscription 4 p UNASSIGNED subscription 4 r UNASSIGNED subscription 1 p UNASSIGNED subscription 1 r UNASSIGNED subscription 3 p STARTED 0 159b 10.0.0.6 node-2 subscription 3 r STARTED 0 159b 10.0.0.7 node-3 subscription 2 r STARTED 0 159b 10.0.0.6 node-2 subscription 2 p STARTED 0 159b 10.0.0.7 node-3 subscription 0 p STARTED 0 159b 10.0.0.6 node-2 subscription 0 r STARTED 0 159b 10.0.0.7 node-3 At this point I was pretty desperate and whatever I tried it either did not do anything or ended up in all kind of failures. So I set thenumber_of_replicasto0by running the following query: #curl -XPUT http://localhost:9200/_settings?pretty -d ' { "index" : { "number_of_replicas' : 0 } }' and started to stop the nodes one by one until I was having only one live node. At this point I decided to start trying to reroute the unassigned shards and if it won't work I would just start over my cluster. So I did run the following: #curl -XPOST -d ' { "commands" : [ { "allocate" : { "index" : "site-id", "shard" : 1, "node" : "node-3", "allow_primary" : true } } ] }' http://localhost:9200/_cluster/reroute?pretty I've seen that the rerouted shard became initialized then running so I did the same command on the rest of unassigned shards. Runningcurl http://localhost:9200/_cluster/health?prettyconfirmed that I am on the good track to fix the cluster. #curl http://localhost:9200/_cluster/health?pretty { "cluster_name" : "z0z0", "status" : "green", "timed_out" : false, "number_of_nodes" : 1, "number_of_data_nodes" : 1, "active_primary_shards" : 10, "active_shards" : 20, "relocating_shards" : 0, "initializing_shards" : 0, "unassigned_shards" : 0, "delayed_unassigned_shards" : 0, "number_of_pending_tasks" : 0, "number_of_in_flight_fetch" : 0, "task_max_waiting_in_queue_millis" : 0, "active_shards_percent_as_number" : 100.0 } So the cluster was green again but was running out of one node. So it was time to bring up the other nodes one by one. When all the nodes were up I set thenumber_of_replicasto1by running the following: #curl -XPUT http://localhost:9200/_settings -d ' { "index" : { "number_of_replicas" : 1 } }' So my elasticsearch cluster is back on running 3 nodes and still in green state. After alot of googling and wasted time I decided to write this article so that if anyone would come accross this issue would have a working example of how to fix it. 本文转自张昺华-sky博客园博客，原文链接：http://www.cnblogs.com/bonelee/p/7459391.html，如需转载请自行联系原作者

2017-11-14

在oc项目中添加swift文件，并设置oc-swift混编

在项目中右键添加一个swift文件，我添加的LearnSwift.swift 添加后Xcode弹出‘是否配置oc桥接头文件’的提示，点确认，系统自动生成一个项目名-Bridging-Header.h的文件，我的是LearnSwift-Bridging-Header.h。配置oc桥接头文件的提示 LearnSwift-Bridging-Header.h实质上是一个供swift使用的头文件，在这里把所有要暴露给swift的oc头文件都添加进去，这样写swift的时候就可以直接使用那些oc的类和方法了。因为swift本身没有头文件，只有.swift；而oc有.h和.m文件。有了这个声明，.swift就可以直接使用oc的.h了我的LearnSwift-Bridging-Header.h文件内容接下来就可以直接在LearnSwift.swift中写swift代码啦～随便声明一个类，打些log：我的LearnSwift.swift文件内容编译直接通过，这就是在swift中使用oc类和方法了，一切顺利！在oc中使用swift，我在AppDelegate.m中使用刚才创建的swift类，那么先要引用swift头文件，即#import "LearnSwift-Swift.h"，然后在这个.m文件中就可以任意使用swift创建的类和方法了：LearnSwift *learnSwift = [[LearnSwift alloc] init]; [learnSwift logsth:@"code from oc"]; 编译运行直接过！输出：this is a log from swift : code from oc 理解下#import "LearnSwift-Swift.h" 其实是项目名-Swift.h，这也是Xcode自动生成的，根据你写的所有swift代码，生成一个oc的.h文件，进行类和方法的声明，这样在oc里引用这个头文件后，就相当于引用了所有swift声明，可以直接使用了。本文转自卓行天下 51CTO博客，原文链接：http://blog.51cto.com/9951038/1860144，如需转载请自行联系原作者

2017-11-13

[Android]为Spinner填充数据后设置默认值的问题

正文问题很奇怪，此外还发现适配完数据后会默认选中第一个，并且这个默认选中第一个的操作并不是马上执行的，而是一段时候后再执行，并触发OnItemSelectedListener事件。下面直奔主题：旧代码： spinner.setAdapter(adapter); spinner.setSelection( 2 ); 新代码： spinner.setAdapter(adapter); spinner.setSelection( 2 , true ); 在来看setSelection有两个参数的函数重载的说明： setSelection(intposition,booleananimate) 英文：Jump directly to a specific item in the adapter data. 中文：直接跳到数据适配器中指定项。以下是两个函数的源代码： /** *Jumpdirectlytoaspecificitemintheadapterdata. */ public void setSelection( int position, boolean animate){ // Animateonlyifrequestedpositionisalreadyonscreensomewhere boolean shouldAnimate = animate && mFirstPosition <= position && position <= mFirstPosition + getChildCount() - 1 ; setSelectionInt(position,shouldAnimate); } @Override public void setSelection( int position){ setNextSelectedPositionInt(position); requestLayout(); invalidate(); } 本文转自over140 51CTO博客，原文链接：http://blog.51cto.com/over140/582222，如需转载请自行联系原作者

2017-11-13

ES field store yes no 区别——可以设置为false，如果_source有的话

store By default, field values areindexedto make them searchable, but they are notstored. This means that the field can be queried, but the original field value cannot be retrieved. Usually this doesn’t matter. The field value is already part of the_sourcefield, which is stored by default. If you only want to retrieve the value of a single field or of a few fields, instead of the whole_source, then this can be achieved withsource filtering. In certain situations it can make sense tostorea field. For instance, if you have a document with atitle, adate, and a very largecontentfield, you may want to retrieve just thetitleand thedatewithout having to extract those fields from a large_sourcefield: PUT my_index { "mappings": { "my_type": { "properties": { "title": { "type": "text", "store": true }, "date": { "type": "date", "store": true }, "content": { "type": "text" } } } } } PUT my_index/my_type/1 { "title": "Some short title", "date": "2015-01-01", "content": "A very long content field..." } GET my_index/_search { "stored_fields": [ "title", "date" ] } COPY AS CURL VIEW IN CONSOLE Thetitleanddatefields are stored. This request will retrieve the values of thetitleanddatefields. 来自：https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-store.html 本文转自张昺华-sky博客园博客，原文链接：http://www.cnblogs.com/bonelee/p/6428653.html，如需转载请自行联系原作者

2017-11-07

(转载)ios之为UIView设置阴影(CALayer的shadowColor，shadowOffset，shadowOpacity，sha...

bottomLeft controlPoint:bottomMiddle]; [path addQuadCurveToPoint:topLeft controlPoint:leftMiddle]; //设置阴影路径

2017-08-10

云服务器 ECS 安全：经典网络内网实例互通设置方法

经典网络内网实例互通设置方法安全组是实例级别防火墙，为保障实例安全，设置安全组规则时要遵循“最小授权”原则，下面介绍四种安全的内网实例互通设置方法。方法 1.

2017-08-10

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Mario

马里奥是站在游戏界顶峰的超人气多面角色。马里奥靠吃蘑菇成长，特征是大鼻子、头戴帽子、身穿背带裤，还留着胡子。与他的双胞胎兄弟路易基一起，长年担任任天堂的招牌角色。

Spring

Spring框架（Spring Framework）是由Rod Johnson于2002年提出的开源Java企业级应用框架，旨在通过使用JavaBean替代传统EJB实现方式降低企业级编程开发的复杂性。该框架基于简单性、可测试性和松耦合性设计理念，提供核心容器、应用上下文、数据访问集成等模块，支持整合Hibernate、Struts等第三方框架，其适用范围不仅限于服务器端开发，绝大多数Java应用均可从中受益。

Sublime Text

Sublime Text具有漂亮的用户界面和强大的功能，例如代码缩略图，Python的插件，代码段等。还可自定义键绑定，菜单和工具栏。Sublime Text 的主要功能包括：拼写检查，书签，完整的 Python API ， Goto 功能，即时项目切换，多选择，多窗口等等。Sublime Text 是一个跨平台的编辑器，同时支持Windows、Linux、Mac OS X等操作系统。

WebStorm

WebStorm 是jetbrains公司旗下一款JavaScript 开发工具。目前已经被广大中国JS开发者誉为“Web前端开发神器”、“最强大的HTML5编辑器”、“最智能的JavaScript IDE”等。与IntelliJ IDEA同源，继承了IntelliJ IDEA强大的JS部分的功能。