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JAVA网络编程常见问题
一. 网络程序运行过程中的常见异常及处理第1个异常是 java.net.BindException:Address already in use: JVM_Bind。该异常发生在服务器端进行new ServerSocket(port)(port是一个0,65536的整型值)操作时。异常的原因是以为与...
分类:编程语言   时间:2015-10-19 19:15:00    阅读次数:205
解决this web application instance has been stopped already
重启tomcat的时候出错Illegal access: this web application instance has been stopped already. Could not load oracle.net.mesg.Message. The eventual following st...
分类:移动开发   时间:2015-10-19 19:02:26    阅读次数:1209
some fragment of thinking in java
1.String s;System.out.println("s=");you will get a compile time error because s isn't actually attached to anything, A safer practice, then is always ...
分类:编程语言   时间:2015-10-18 11:23:29    阅读次数:177
手贱rm -rf /path/之后,可以这样来
How?to?recover?files?I?deleted?now?by?running?rm?*??[duplicate] This?question?already?has?an?answer?here: Recovering?accidentally?deleted?files?7?answers By?mistake?I?ran...
分类:其他好文   时间:2015-10-17 01:56:52    阅读次数:512
采用TL026等构成的宽带ALC放大器电路图
Building a Differential AmplifierAn op-amp with no feedback is already a differential amplifier, amplifying the voltage difference between the two inp...
分类:其他好文   时间:2015-10-15 17:50:10    阅读次数:466
Warning: Attempt to present * on * which is already presenting *
Warning: Attempt to present (要被presented的控制器) on (哪个控制器来presenting) which is already presenting (已经被presenting的控制器)self: 是被presented出来的控制器,self.presen...
分类:其他好文   时间:2015-10-15 15:45:10    阅读次数:245
最小化安装centos的init初始化脚本
#!/bin/bash#this script is appropriate for minimize installation system centos or linux 6.x(这脚本适合最小化安装6.x版本的系统)#you have already install the osread -....
分类:其他好文   时间:2015-10-14 17:40:54    阅读次数:199
docker 1.8+之后ubuntu安装指定版本docker-engine
这边记录ubuntu安装过程,首先是官网文档If you haven’t already done so, log into your Ubuntu instance.Open a terminal window.Add the newgpgkey.$ apt-key adv --keyserver...
分类:系统相关   时间:2015-10-13 16:49:17    阅读次数:239
带你玩转Visual Studio——带你跳出坑爹的Runtime Library坑
在Windows下进行C++的开发,不可避免的要与Windows的底层库进行交互,然而VS下的一项设置MT、MTd、MD和MDd却经常让人搞迷糊,相信不少人都被他坑过,特别是你工程使用了很多第三库的时候,及容易出现各种链接问题。看一下下面这个错误提示:LIBCMT.lib(_file.obj):errorLNK2005..
分类:其他好文   时间:2015-10-13 01:37:45    阅读次数:247
linux下/proc/sysrq-trigger文件的功能
/proc/sysrq-trigger该文件能做些什么事情呢?# 立即重新启动计算机 (Reboots the kernel without first unmounting file systems or syncing disks attached to the system)echo "b" ...
分类:系统相关   时间:2015-10-12 19:19:34    阅读次数:155
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