Regular expressions for shell Scripting (awk, sort, uniq tools)

Regular expressions for shell Scripting (3) 1. Preface The first two articles mainly introduce the concept and function of regular expression, give a conceptual description of basic regular expression and extended regular expression, and introduce grep and sed commands in shell "Three Swordsmen". This article will introduce awk, the ...

Posted on Fri, 06 Dec 2019 05:56:08 -0800 by Donny Bahama

The method of analyzing Json format data by Flink SQL

1. Flink version 1.7.2 2. Introduce dependency Use maven to build the project, so pom.xml adds the following dependencies: <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-table_2.11</artifactId> <version>1.7.2</version> </dependency& ...

Posted on Thu, 05 Dec 2019 18:10:03 -0800 by cx3op

Basic development steps of web service interface based on Axis2

  Axis2webServicejavaWeb Preface: Today, I'd like to share with you some experience of making web service interface when I was working on a project some time ago. Import Axis2 related jar package in the web project lib directory   enter description here   Configure AxisServlet in web.xml, which is the main entrance or controll ...

Posted on Tue, 03 Dec 2019 00:40:51 -0800 by Mark1inLA

From Getting Started to Mastering springcloud - The Age Without a Registry

This section focuses on invoking the http service without using springcloud.Let's first clear up a few concepts: (1) Producer: the provider of a service whose services can be invoked by other programs or within itself; (2) Consumer: the caller of a service, whose services depend on one or more services of the producer to comp ...

Posted on Tue, 03 Dec 2019 00:28:35 -0800 by n9ne

Jmeter's java request for redevelopment: testing the dubbo interface

From: https://blog.csdn.net/qq_34021712/article/details/78956600   Source download: Click here to download Note: Testing the dubbo interface with JMeter is similar to testing java requests with jmeter, refer to Basic Knowledge. [Fundamentals] jmeter tests the java interface (secondary development): http://blog.csdn.net/qq_3 ...

Posted on Mon, 02 Dec 2019 19:27:56 -0800 by Andrew B

Java 11 has been released. String can play like this!

In the article Java 11 is officially released. These eight new features teach you to write better code >In, I have introduced eight new features of Java 11. I think it's a little interesting about the String enhancement part. Let's talk about it separately. Java 11 adds a series of string processing methods, as shown below. // Judge whether ...

Posted on Mon, 02 Dec 2019 04:53:32 -0800 by rinventive

Common encryption and decryption -- Digital Signature

Original link: https://www.dubby.cn/detail.html?id=9125 Previously Common encryption and decryption (1) The message digest is mentioned in it. What's the difference between the digital signature and the message digest? In fact, a digital signature is a message digest with asymmetric encryption. The purpose of message digest is to ...

Posted on Sun, 01 Dec 2019 12:02:13 -0800 by Labbat

06-SSM integrated Shiro integrated menu example

* SSM integrated Shiro integrated menu example   *SSM integrated Shiro for authentication   * copy RoleUsers,RolePermissions * add passwordSalt to the User class (and survive the set/get method)             * add roles, permissions, user roles in database hx01   *Modify user table *Add dependency <depend ...

Posted on Sun, 01 Dec 2019 07:19:10 -0800 by ProblemHelpPlease

Using FTPClient to upload and download in JAVA

In JAVA programs, you often need to deal with FTP, such as uploading files to FTP server and downloading files. This paper briefly introduces how to use FTPClient (in commons net package) in jakarta commons to upload and download files. I created mvn project, so I added dependency in pom.xml file: <!-- https://mvnreposito ...

Posted on Sun, 01 Dec 2019 07:00:00 -0800 by goochy808

Install SSL certificate configuration Https in Apache on alicloud server Centos

First, we go to Alibaba cloud to apply for a free SSL Certificate (https://common-buy.aliyun.com/? SPM = 5176.7968328.1266638.. 5e971232bzmsp5 & commoditycode = CAS # / buy), as shown below: After the application is passed, the certificate is issued. We will go to the console to download the Apache version certificate Then create a cert f ...

Posted on Sun, 01 Dec 2019 04:53:07 -0800 by cueball2000uk