辛淼 Jin

博文

目前显示的是 2018的博文

显示全部

convertdatatypes

十二月 27, 2018

Today found 2 interesting web sites: 1. http://www.convertdatatypes.com/ 2. https://ascii.cl

阅读全文

ReWriteURL and Redirect in net core 2.1

十二月 18, 2018

Container: public class HomeController : Controller { public IActionResult Index() { //1 and 2 are without changing the URL in broswer //1. HomeController aController = new HomeController(); return aController.About(); //2.//"PageNotFound" must be in Shared view folder. return View("PageNotFound"). //3 other changing the URL return View("Calls"); Response.Redirect("c"); return View("Go"); Redirect("t"); RedirectToAction(...); } } Environment: <PackageReference Include="Microsoft.AspNetCore.App" /> <PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.1.2" PrivateAssets="All" /> Ref: http://www.advancesharp.com/questions/100/server-transfer-in-mvc-razor

阅读全文

Utils in Java

十二月 07, 2018

1.java.lang.System https://docs.oracle.com/javase/tutorial/essential/environment/sysprop.html 2.org.apache.commons.lang.SystemUtils uses it. . getJavaHome().getJavaIoTmpDir().getUserDir().getUserHome() .JAVA_VERSION.OS_NAME.USER_TIMEZONE 3.org.apache.commons.lang.math.NumberUtils http://commons.apache.org/proper/commons-lang/javadocs/api-2.6/org/apache/commons/lang/math/NumberUtils.html 4.org.apache.commons.lang.StringUtils https://commons.apache.org/proper/commons-lang/javadocs/api-2.6/org/apache/commons/lang/StringUtils.html 5.org.springframework.beans.BeanUtils https://docs.spring.io/spring-framework/docs/5.1.3.RELEASE/javadoc-api/org/springframework/beans/BeanUtils.html 6.org.apache.commons.beanutils http://commons.apache.org/proper/commons-beanutils/javadocs/v1.9.3/apidocs/index.html http://commons.apache.org/proper/commons-beanutils/

阅读全文

JSON & C#

十一月 29, 2018

1. System.Text.Json.Utf8JsonReader ref: https://docs.microsoft.com/en-us/dotnet/core/whats-new/dotnet-core-3-0 https://github.com/ysharplanguage/FastJsonParser#Overview 2. Newtonsoft.Json library using NewTonsoft.Json; //Using Manage NuGet Packages installs Newtonsoft.Json . Cat cat2 = new Cat(){name="hik",age=3}; string s1= Newtonsoft.Json.JsonConvert . SerializeObject (cat2); Cat cat3 = JsonConvert . DeserializeObject <Cat>(JSONstr); string outStr2 = JsonConvert.SerializeObject(cat2); private string CapitalFirstLetter(string s) { try { string rs = char.ToUpper(s[0]) + s.Substring(1); return rs; }catch(Exception e) { return s; } } 3. JavaScriptSerializer using System.Web.Script.Serialization ; using System.IO; //Script.Serialization is in System.Web.Extensions . //We need to add a reference that is System.Web.Extensions in Assemblies in Reference Manager

阅读全文

center element

十月 06, 2018

阅读全文

log ClosedXML

九月 26, 2018

Microsoft Visual Studio 1. NuGet Package Manager installs ClosedXML that depends DocumentFormat.OpenXml, ExcelNumberFormat, and WindowsBase. 2.using ClosedXML.Excel; using System; using System.Data; using System.Data.OleDb; using System.IO; 3. read .xlsx file using (var workbook = new XLWorkbook(xlsxfile)) { ... var ws = workbook.Worksheet(1); foreach (var row in ws.Rows()) {if (!row.IsEmpty()){string cell1 = row.Cell(1).GetValue<string>(); object value =row.Cell(1).Value; } } } 4. OpenFileDialog using (OpenFileDialog openFileDialog = new OpenFileDialog()) { openFileDialog.InitialDirectory = Form1.XlsxInitialDirectory; // "C:\\Users\\jason\\Downloads\\"; openFileDialog.Filter = "xlsx files (*.xlsx)|*.xlsx"; //"txt files (*.xlsx)|*.xlsx|All files (*.*)|*.*"; openFileDialog.FilterIndex = 2; openFileDialog.R

阅读全文

javascript Alert and url query

九月 22, 2018

<!DOCTYPE html> <html> <head> <style> .alert { padding: 20px; background-color: #f44336; color: white; } .closebtn { margin-left: 15px; color: white; font-weight: bold; float: right; font-size: 22px; line-height: 20px; cursor: pointer; transition: 0.3s; } .closebtn:hover { color: black; } </style> </head> <body> <h2>Alert Messages</h2> <p>Click on the "x" symbol to close the alert message.</p> <div class="alert"> <span class="closebtn" onclick="this.parentElement.style.display='none';">×</span> <strong>Danger!</strong> Indicates a dangerous or potentially negative action. </div> </body> </html> function getQueryVariable ( variable ) { var query = window . location . search . substring ( 1 ); var vars = quer

阅读全文

Assembly in C#

八月 02, 2018

1. using System.Reflection.Assembly System.Reflection.AssemblyName name = System.Reflection.Assembly.GetExecutingAssembly().GetName(); //name is {AssemblyNameInProperties, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null} byte[] key = name.GetPublicKey(); 2. reflection Assembly assem = typeof (ExampleClass).Assembly; // Create an object from the assembly, passing in the correct number // and type of arguments for the constructor. Object o = assem.CreateInstance( "Example" , false , BindingFlags.ExactBinding, null , new Object[] { 2 }, null , null ); // Make a late-bound call to an instance method of the object. MethodInfo m = assem.GetType( "Example" ).GetMethod( "SampleMethod" ); Object ret = m.Invoke(o, new Object[] { 42 }); Console.WriteLine( "SampleMethod returned {0}." , ret); reference: docs.microsoft.com/en-us/dotnet/api/system.re

阅读全文

learn Nodejs & Express & MongoDB

七月 24, 2018

Ref: http://lonka.github.io/blog/2016/08/18/ng2/ng2-cli-quickstart/ http://www.imooc.com/article/6179 remove Nodejs del %USERPROFILE%\.npmrc rmdir /s/q "c:\Program Files\nodejs" rmdir /s/q "%APPDATA%\npm" rmdir /s/q "%APPDATA%\npm-cache" 安装 Nodejs v6.2.2(npm3) & Visual Studio Code 安装 npm install -g gulp yo webpack rimraf npm install -g typescript typings angular-cli npm install -g eslint tslint npm install -g angular-cli gulp yo webpack rimraf typescript typings eslint tslint ng new demo1 cd demo1 npm install --- Error: Cannot find module ‘ exists-sync' 这是 1.0.0-beta8 的 issue ng build ng serve (-prod 同时关闭 live Reload) -- http://localhost:4200 -- http://localhost:49152(live Reload ） ng generate component header //直接在「\app\」下加入一個 Component 名為 header ng generate service search ng build // 以下命令可以將專案發行至「 \dist 」中 Ref: http://lonka.github.io/blog/2016/08/18/ng2/ng2-cli-quick

阅读全文