Use of the base class of RAC

RACSignal,RACSubject,RACReplaySubject RACSignal // **1. Create Signal** RACSignal *signal = [RACSignal createSignal:^RACDisposable * _Nullable(id<RACSubscriber> _Nonnull subscriber) { // The block, which is called whenever the signal is subscribed to; used primarily to send data // * ...

Posted by timmah1 on Sat, 18 Jul 2020 18:13:29 +0200

Hiberante reverse-generates database tables

1,hibernate.cfg.xml Comment out this section of configuration <!--Update database level automatically--> <!--<property name="hbm2ddl.auto">create</property>--> 2. New Generate Database Table Tool Class public class HibernateSchemaExport { static Session session; static Configuration ...

Posted by rashu.dr on Sat, 18 Jul 2020 17:47:25 +0200

Picture deletion for laravel-admin

There is a deep doubt about laravel-admin's picture upload mechanism. Deleting avatar pictures on the user information page will cause an error. It was 1.4 at that time, and later updated 1.5 found that the delete button disappeared directly. If you use image normally in the form during the process of use, the slight ...

Posted by Lustre on Sat, 18 Jul 2020 16:38:30 +0200

commons-lang3 tool class learning (2)

From http://commons.apache.org/proper/commons-lang/javadocs/api-release/org/apache/commons/lang3/ Official documents to organize and remember for yourself 3. BooleanUtils Boolean Tool Class and(boolean...array) logic and BooleanUtils.and(true, true) = true BooleanUtils.and(false, false) = false ...

Posted by dvd420 on Fri, 17 Jul 2020 17:51:35 +0200

CAD Secondary Development--Automatic Loading of Developed DLL

CAD secondary development can be achieved by writing extended DLLs.The function of the DLL can be called by the CAD. However, before calling it, you must load the dll into CAD with the command netload. Actually, you can modify the registry and automatically load the extended DLL when the CAD software starts. For this reason, I have written a fu ...

Posted by benkillin on Fri, 17 Jul 2020 17:17:54 +0200

vtk view settings

Problem Description The vtk displays various views of the model, such as the front view, the back view, the left view, the right view, and so on. analysis We achieve each view by adjusting the camera position, focus position, and upward direction. Camera location: that is, where the camera is located, set with me ...

Posted by sorin1982 on Fri, 17 Jul 2020 16:33:20 +0200

ajax and servlet -- Verify that the user name exists

Verify that the user name exists -- using jQuery 1. Database mysql The user name already exists in the database. 2. html Page <body> <h1>User Login</h1> <hr> <form name="regForm" action="dologin.jsp" method="post"> <table> <tr> <td>user ...

Posted by splitinfo on Fri, 17 Jul 2020 16:26:13 +0200

Classic three-column front layout with adaptive middle.

First, the first float method we commonly use It is important to note that the center of the method is placed behind the right box. html *{ padding:0; margin: 0; } .layout article div{ min-height: 100px; } .layout.float .left{ float: le ...

Posted by adaminms on Fri, 17 Jul 2020 16:17:53 +0200

Classic three-column front layout with adaptive middle.

First, the first float method we commonly use It is important to note that the center of the method is placed behind the right box. html *{ padding:0; margin: 0; } .layout article div{ min-height: 100px; } .layout.float .left{ float: le ...

Posted by dniry on Fri, 17 Jul 2020 16:19:48 +0200

express Learning (3) - cookie s and session s

express Learning (3) - cookie s and session s Cookies exist in the browser and can only store up to 4K of data, which is not safe Session exists in the server and cannot be independent (read cookie s before session), which is more secure cookie tool Send cookie s: Write the basics first: const express = require('express'); var server=expre ...

Posted by anand on Thu, 16 Jul 2020 17:16:47 +0200