Note a pit encountered when crypto's createCipheriv method was used to encrypt node.js

Node.js crypto module A set of encapsulations including hashing, HMAC, encryption, decryption, signature and verification of OpenSSL are provided. Specific methods of use can be referred to in the description of this article: node.js_crypto module. This paper focuses on the pits encountered when using the createCipheriv method. The correspond ...

Posted on Thu, 10 Oct 2019 05:09:41 -0700 by uluru75

Introduction to the Use of Annotations

This blog is mainly divided into the following questions Relevant Knowledge Points of Annotations Examples of runtime-based annotations As for compile-time annotations, I'll give you some examples in the next blog, and I'm still learning about them. Relevant Knowledge Points of Annotations When it comes to annotations, most people should not ...

Posted on Thu, 10 Oct 2019 04:48:41 -0700 by mrjam

Mybatis generates model, dao, mapper files

Overall structure: pom file <dependencies> <!-- MyBatis generator --> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.7</versio ...

Posted on Thu, 10 Oct 2019 02:48:28 -0700 by MikeSnead

On Composite Combination Model

I. Preface For example, if the reader has a GUI program written in java, he must define some components. After initialization, he uses the add method of container to organize these components into an interface sequentially. Or if the reader has written the front page, he must have used < div> and so on. The tag defines some formats, and ...

Posted on Thu, 10 Oct 2019 02:48:06 -0700 by Jay_Seagrave

Various uses of @Import in Spring and ImportAware interface

@ Import annotation @ Import annotations provide functionality equivalent to <import/> elements in XML to implement one or more configuration classes imported. @ Import can be used either as a class or as a meta-annotation. @Target(ElementType.TYPE) @Retention(RetentionPolicy.RUNTIME) @Documented public @interface Import { /** * ...

Posted on Thu, 10 Oct 2019 01:36:05 -0700 by benjrox

Java adds hyperlinks to Word documents

After adding hyperlinks to specific elements, users can activate these links by clicking on the linked elements, usually with underlines under the linked elements or by displaying them in different colors. According to the different objects used, links can be divided into text hyperlinks, image hyperlinks, E-mail links, anchor links, multimedia ...

Posted on Thu, 10 Oct 2019 00:24:56 -0700 by j_70

Minutes to read ButterKnife's source code

Why write this series of blogs? Because in the Android development process, generics, reflection, annotations will be used, almost all frameworks will use at least one or two of the above knowledge, such as Gson, generics, reflection, annotations, Retrofit also used generics, reflection, annotations. It is very important for us to learn thes ...

Posted on Thu, 10 Oct 2019 00:03:37 -0700 by new2phpcode

[Offer] [3-1] [Find duplicate numbers in arrays]

Topic Description thinking Java code Code Links Topic Description All numbers in an array of length n are in the range of 0-n-1. Some numbers in the array are repeated, but it is not known how many numbers are repeated, or how many times each number is repeated. Find any duplicate number in the array. For example, if an array {2,3,1, ...

Posted on Wed, 09 Oct 2019 23:49:21 -0700 by nyi8083

Initial JavaDay14: Object and Class Exercises

Initial Java Day 14: Object and Class Exercises (1) 1. Title: Find the area and circumference of a circle and the distance between two circles. Ideas for solving problems: The most important thing here is to understand the idea of object-oriented problem solving, which should include two classes ...

Posted on Wed, 09 Oct 2019 23:09:38 -0700 by aravona

Send QQ Email Notification after ping communicates with Google

Preface During the National Day, it is said that in order to prevent people from making improper comments on major festivals, many of the IPS that can be kxsw are blocked, but when will the blockade be unlocked? You can't go ping without doing anything, so I wrote a regular task, timing ping Google server, if ping is general, send an email noti ...

Posted on Wed, 09 Oct 2019 22:04:41 -0700 by Spitfire