ABAP模拟Java Spring依赖注入(Dependency injection)的一个尝试 Recently I will deliver a session regarding?dependency inversion principle?to my team. As Java Spring is already widely used in all other Java development teams in my site, some ABAPers are not well ... SAPC4CCloudCDS viewCloudFoundry? JerryWang_SAP

日志入库+分库分表(ShardingSphere) 因无法上传图片，博客移动至：日志入库+分库分表 分库分表logshardingsphere? 宋建勇

SAP ABAP Netweaver里的胖接口(fat interface) Recently I am planning an internal training regarding Software engineering concept to my colleagues and one topic is “Interface Segregation”. The following guideline is quoted from OODesign: “When w ... sapC4CCloudCDS viewCloudFoundry? JerryWang_SAP

将ABAP透明表的定义(元数据)解析出来导入到剪切板(clipboard)里 Recently I am planning an internal training regarding Software engineering concept to my colleagues and one topic is “Interface Segregation”. The following guideline is quoted from OODesign: “When w ... ABAPC4CCloudCloudFoundrySAP? JerryWang_SAP

使用SAP CRM mock框架进行单元测试的设计 There is an interface IF_CRM_PRODUCT_PROXY in CRM which declares almost all function modules from function group COM_PRODUCT_API for product master access. ? This interface is implemented by three ... sapcrmSAP云平台SAP Cloud PlatformCloud? JerryWang_SAP

Java JUnit框架里@Category注解的工作原理 Suppose you have a large number of unit test cases and you don’t want them to be executed all at the same time during Maven build. You can simply achieve it via annotation @Category. (1) Create empty ... SAPCloudCDS viewCloudFoundrySAP云平台? JerryWang_SAP

使用Java JUnit框架里的@SuiteClasses注解管理测试用例 Suppose I have four test cases in my project, the total methods to be tested: 7 ? ? Based on the blog?Run only given sets of your unit test via @Category, it is possible to organize test methods ... javaC4CCloudCDS viewCloudFoundry? JerryWang_SAP

使用Java JUnit框架里的@Rule注解的用法举例 Suppose you need to repeatedly execute some test method in your unit test case, for example, you would like to test getPrice based on the first set of test data 5 times in test method test1() while fo ... SAPC4CCloudCDS viewCloudFoundry? JerryWang_SAP

Java JDK目录下的jmap和jhat工具的使用方式 Suppose you have a running Java process and you would like to inspect its running status, for example how many object instance are created or memory consumption status, you can use some standard tool ... SAPC4CCloudCDS viewCloudFoundry? JerryWang_SAP

K8S 备份及升级 一、准备工作 查看集群版本： # kubectl get node -o wide NAME???????? STATUS??? ROLES???? AGE?????? VERSION?? EXTERNAL-IP?? OS-IMAGE?????????????????? KERNEL-VERSION?????????? CONTAINER-RUNTIME k8s-master?? Ready???? ... k8s? maosheng

使用Chrome开发者工具研究JavaScript的垃圾回收机制 I use the following simple JavaScript code to illustrate: var JerryTestArray = []; (function(){ for( var i = 0; i < 100; i++){ JerryTestArray[i] = document.createElement("d ... 思爱普SAPSAP云平台SAP Cloud PlatformCloudFoundry? JerryWang_SAP

Chrome开发者工具里的一个隐藏技能:chrome://net-internals During my holiday I was writing a small tool for fun, which extracts my personal posts from?http://www.baidu.com?for further analysis. I am using AJAX in jQuery to perform a synchronous call to fetch ... 思爱普SAPSAP云平台JavaScriptCloud? JerryWang_SAP

Linux NFS 搭建与配置 一、NFS 介绍 NFS 是 Network FileSystem 的缩写，顾名思义就是网络文件存储系统，它最早是由 Sun 公司发展出来的，也是 FreeBSD 支持的文件系统中的一个，它允许网络中的计算机之间通过 TCP/IP 网络共享资源。通过 NFS，我们本地 NFS 的客户端应用可以透明地读写位于服务端 NFS 服务器上的文件，就像访问本地文件一样方便。简单的理解，NFS 就是可以透过网络 ... nfs? maosheng

JavaScript ES6 Fetch API时需要注意的一个Cookie问题 When I am doing a test of comparison between Stateful and Stateless BSP application ( mentioned in blog?Stateless and Stateful – Different behavior in application side ), I meet with a strange issue. ... jsJavaScriptSAP云平台SAP Cloud PlatformCloud? JerryWang_SAP

SAP UI5和Angular里控制器(Controller)实现逻辑比较 Let’s first refresh our memory on SAPUI5 controller. I have a simple xml view which only contains a button: <core:View xmlns:core="sap.ui.core" xmlns:common="sap.ui.commons" ... SAPSAP云平台SAP Cloud PlatformCloudSAP UI5? JerryWang_SAP

SAP UI5和Vue的双向绑定比较 Recently when I do self study on Vue I find many articles in the internet with full of praise on?Vue‘s reactive Two-Way Data binding trait. This fact makes me recall my self-study on UI5 early in year ... SAPSAP云平台SAP Cloud PlatformCloudCDS view? JerryWang_SAP

SAP Cloud for Customer里一个Promise的实际应用场合 There are lots of?tutorials?about promise in the internet. Recently I am studying the frontend code of SAP Cloud for Customer and I come across a real example of how promise is used there. Below is t ... SAPSAP云平台SAP Cloud PlatformCloudFoundryCloud for Customer? JerryWang_SAP

SAP Fiori Launchpad Tile，UI5应用，和PFCG Role的对应关系 问题：已经看到了SAP Fiori Launchpad上的某个tile，如何反推后台需要配置哪个PFCG Role才能看到该tile？ 这个问题是今天一个朋友在微信上问我的。因为我最近忙着学习一个新的SAP产品，所以这个问题也没有时间展开来写，本文就只做概要介绍。 下图是一个Gateway系统上打开的SAP CRM Fiori Launchpad： ? ? 如何弄清楚后台用户配置了哪 ... sapFundamentalsSAP云平台SAP Cloud PlatformSAP成都研究院? JerryWang_SAP

SAP Fiori里的两种锁机制 Approach 1: ETAG mechanism This approach is used in SAP CRM Fiori. Suppose user Jerry has opened a given opportunity with ID = 3456 and clicked the Edit button: ? ? A read operation is fired and ... FioriFundamentalsSAP云平台SAP Cloud PlatformSAP成都研究院? JerryWang_SAP

使用Chrome开发者工具研究JavaScript函数的原生实现原理 As the size of my blog?Chrome Development Tool tips used in my daily work?turns to be larger I create a separate post to record down this small tip. Are you curious about the “native code” here? At le ... sapJavaScript前端subscribeSAP UI5? JerryWang_SAP