Our first task is to get a minimal Struts 2 application running. This chapter will guide you on how to prepare a development environment to start your work with Struts 2. I assume that you already have have JDK (5+), Tomcat and Eclipse installed on y…

I re-visited the RHEL study material and setup the environment again, noted down the procedure. 1, copied the *.vdi (rhel6std.vdi and RHEL6-Student.vdi) file from Lenovo ThinkPad T400 to my new Lenovo ThinkPad X1, created the new machine by importing…

In this lesson we'll setup a simple build process for converting our ES6 React components into ES5 using Babel and Webpack Install: npm i --save react react-dom npm i -D babel-loader babel-core babel-preset-es2015 babel-preset-react npm i -g babel we…

Install packages: { "name": "reactflux", "version": "1.0.0", "description": "", "main": "dist/js/main.js", "scripts": { "test": "echo \"Error: no…

转载自: http://www.cnblogs.com/Bonker/p/3584707.html http://www.cnblogs.com/fnng/archive/2013/05/29/3106515.html 本页版权归作者和博客园所有,欢迎转载,但未经作者同意必须保留此段声明, 且在文章页面明显位置给出原文链接,否则保留追究法律责任的权利. 本文重点介绍使用Eclipse+pydev插件来写Python代码,  以及在Windows上配置Eclipse+Pydev. 编辑器:Ecli…

1. Visual Studio 目前,Visual Studio 2017/2019支持Azure Sphere开发,后续,微软会加入Visual Studio Code的支持.以Visual Studio 2019 Community为例(Pro版和Enterprise版也当然支持),用户需要先从官网下载.安装的时候,需要勾选Linux development with C++这个Workload,注意,还需要勾选C++ CMake tools for Linux和Embedded and…

There are too few information available on how to easily setup QT environment for building Beaglebone applications (command line or GUI). In this tutorial we will compile QT and setup the environment from scratch. 1. My environment Host: Ubuntu 12.10…

Key Technologies Primer https://struts.apache.org/primer.html Threads With Struts 1 you were required to know a lot about how to write code which can run in a multi-threaded environment. With Struts 2 this is no longer necessary. In an Struts 2 envir…

[it-ebooks]电子书列表   [2014]: Learning Objective-C by Developing iPhone Games || Leverage Xcode and Objective-C to develop iPhone games http://it-ebooks.info/book/3544/Learning Web App Development || Build Quickly with Proven JavaScript Techniques http:…

关于单元测试的想法 对于一些比较重要的项目,每次更新代码之后总是要自己测好久,担心一旦上线出了问题影响的服务太多,此时就希望能有一个比较规范的测试流程.在github上看到牛逼的javascript开源项目,也都是有测试代码的,看来业界大牛们都比较注重单元测试这块. 就我自己的理解而言: 涉及到大量业务逻辑的代码,可能我没有精力去给每个函数都写上单元测试的代码,功能细节的测试应该交由测试的同事去完成,但是对会直接影响项目正常运行的重要的数据接口,还是可以看情况写上几个单元测试用例的,每一次修改之…

引用地址:http://www.cnblogs.com/lucius/p/3442381.html examples: Overview This document explains how to write unit tests for your map reduce code, and testing your mapper and reducer logic on your desktop without having any Hadoop environment setup. Let's…

Google TestExtending Google Test by Handling Test Events Google测试提供了一个事件侦听器API,让您接收有关测试程序进度和测试失败的通知. 可以监听的事件包括测试程序的开始和结束,测试用例或测试方法等. 您可以使用此API来扩充或替换标准控制台输出,替换XML输出,或提供完全不同的输出形式,例如GUI或数据库. 例如,您还可以使用测试事件作为检查点来实现资源泄漏检查器. 一.定义事件侦听器 要定义一个事件监听器,你需要继承testin…

监控作业发现一台服务器(Red Hat Enterprise Linux Server release 5.7)从凌晨1:32开始,有一小段时间无法响应,数据库也连接不上,后面又正常了.早上检查了监听日志,并没有发现错误信息.但是检查告警日志,发现有下面错误信息: Thread 1 advanced to log sequence 19749 (LGWR switch)   Current log# 2 seq# 19749 mem# 0: /u01/oradata/epps/redo02.lo…

本文将介绍如何使用gtest进行单元测试. gtest是google单元测试框架.使用非常方便. 首先,下载gtest (有些google项目包含gtest,如 protobuf),复制目录即可使用. http://code.google.com/p/googletest/ 如果被墙,就百度搜下,很多. 解压 gtest.zip, 得到gtest.1.x.x目录. export GTEST_HOME=该目录 编译: cd $GTEST_HOME/makemake 运行示例程序, 熟悉 gtest…

也就是构造一棵Huffman Tree,输入是按照词汇频次由高到低排序的 采用层次SoftMax的做法,是为了使得训练和预测时候的softmax输出加速,原有multinomal softmax,是和 训练词汇量|V|成正比的,而现在由于二叉树的特性,变成了log(|V|),也就是平均每个预测只做log(|V|)次 的binary的softmax.当然还有另外一种不采用HSTree的方法也就是nce(Noise Contrastive Estimation),后面再分析.     由于</s>…

This article is an in-depth tutorial for using Kafka to move data from PostgreSQL to Hadoop HDFS via JDBC connections. Read this eGuide to discover the fundamental differences between iPaaS and dPaaS and how the innovative approach of dPaaS gets to t…

作者:唐老师,华清远见嵌入式学院讲师. 1.   编译Android模拟器 在Ubuntu下,我们可以在源码里编译出自己的模拟器及SDK等编译工具,当然这个和在windows里下载的看起来没有什么区别. 编译Android模拟器的步骤和编译Android系统很相似: Ø  build/envsetup.sh Ø  lunch sdk-eng Ø  make sdk 在每次执行make的时候,编译系统会自动的验证上次编译项和这次编译项,如果两次不一样,会删除所有的目标代码,其实现在./build/…

参考:Github 安装p4c-bm: sudo pip install -r requirements.txt sudo pip install -r requirements_v1_1.txt //if you are interested in compiling P4 v1.1 programs sudo python setup.py install 测试: p4c-bmv2 -h 弹出相关信息: usage: p4c-bmv2 [-h] [--json JSON] [--pd PD]…

为了将Qt Assistant定制为自己应用程序的帮助文档浏览器.需要完成以下几步: 一.导入HTML格式的帮助文档 (1)首先,针对自己的应用程序创建HTML格式的帮助文档,请参见<Doxygen生成HTML文件>.(下面示例假设HTML文件已经存在) (2)新建Gui应用.QtCreator-->new Project-->Qt Widgets Application 新建项目名称定义为“MyHelpThis”,类名定义为“MainWindow”,基类保持QMainWindow…

Machine Learning – Coursera Octave for Microsoft Windows GNU Octave官网 GNU Octave帮助文档 (有900页的pdf版本) Octave 4.0.0 安装 win7(文库) Octave学习笔记(文库) octave入门(文库) WIN7 64位系统安装JDK并配置环境变量(总是显示没有安装Java) MathWorks This week we're covering linear regression with mul…

Ubuntu ARM install of ROS Indigo 溪西创客小屋 There are currently builds of ROS for Ubuntu Trusty armhf. These builds include most but not all packages, and save a considerable amount of time compared to doing a full source-based installation. Supported/Te…

在Android编译框架中,把许多固定的.反复用到的目录路径定义为 宏变量,常用 宏 如下: out/target/product/xxx的宏即为:PRODUCT_OUT out/target/product/xxx/system的宏即为:TARGET_OUT out/target/product/xxx/root的宏即为:TARGET_ROOT_OUT, device/test05/BoardConfig.mk 红色部分即为:TARGET_PRODUCT 宏,一般 TARGET_PRODUCT…

原创博文,转载请标明出处:--周学伟http://www.cnblogs.com/zxouxuewei/ Step 1: Setup ROS Environment root@zxwubuntu-Aspire-V3-572G:~# cd ~/ros_ws root@zxwubuntu-Aspire-V3-572G:~# source /opt/ros/indigo/setup.bash root@zxwubuntu-Aspire-V3-572G:~# catkin_make Source ROS…

http://docs.opencv.org/doc/tutorials/introduction/android_binary_package/O4A_SDK.html#running-opencv-samples OpenCV4Android SDK This tutorial was designed to help you with installation and configuration of OpenCV4Android SDK. This guide was written w…

ref: http://docs.opencv.org/doc/tutorials/introduction/android_binary_package/O4A_SDK.html#running-opencv-samples OpenCV4Android SDK This tutorial was designed to help you with installation and configuration of OpenCV4Android SDK. This guide was writ…

rm是个强大的命令,特别是rm -rf有时候强大到让你欲哭无泪,当你想清除当前目录下的所有文件和目录时,很简单 $sudo rm -rf ./* 这没什么,但是,但是如果不小心打成这样 $sudo rm -rf /* 兄弟,请节哀! 还 有其他各种各样的杯具,比如打开了很多窗口,有本地机器还有远程的几台服务器,本来想从这台机器执行rm -rf命令,却错误的输 入到了其他机器的终端窗口,总之rm太危险了,特别是带有-rf参数时一定要慎之又慎,但老虎也有打盹的时候啊,所以为什么不给 rm 一剂后悔药…

1  准备工作 全部是按照官方操作的:http://wiki.ros.org/groovy/Installation/Source   apt-get install python-rosdep python-rosinstall-generator python-wstool build-essential 出现错误,找不到源 ,那个就要进入提示的页面:If you have trouble installing the packages in the command above, make…

Introduction with Jenkins iOS If you are new to continuous integration for mobile platforms then you are in the right place. This article will explain how to setup a fully automated continuous integration environment. To do this we will use the follo…

转: http://codinginet.com/articles/view/201606-use_gtestx_for_benchmark?simple=1&from=timeline&isappinstalled=0 使用gtestx写C++性能测试 By mikewei at 2016-06-05 01:00 阅读(233) 在互联网后台开发领域,针对性能的单元测试常被忽视,实际上它非常重要,至少与普通的unit-test一样重要.特别是对一些基础库.关键部分代码,必要的性能单元测试…

用gtest来测试oracle中oci方式的SQL语句操作,在测试update数据库中不存在的异常案例的时候,日志没有报错,但是结束后跳出了数据库连接 gtest也没有给出正常的结果,本身update存在的行进行操作是没有错误的 /////////////////////////////////////////////////////////////////////////////////////////////////// [2014-01-21 10:24:09.177284][142869…