Several ways to quickly read file contents in SpringBoot

Introduction: In a SpringBoot-built project, in some cases, you need to read some file contents on your own. How can you read the file contents in a quick and easy way?(   Read based on ApplicationContext How to get an ApplicationContext refe ...

Posted by rolajaz on Sun, 01 Sep 2019 19:17:22 -0700

JAVA state micro-service intrusion link tracking

Intrusion Link Tracking APM with Pinpoint I. Intrusion Link Tracking APM Application Performance Management (APM)It means to monitor and optimize the key business of an enterprise, to improve the reliability and quality of its business, to ensure that its customers receive good service, to reduce the total cost of IT operation and maintenance, ...

Posted by ladokha on Mon, 26 Aug 2019 00:14:30 -0700

MySQL Learning Notes 3

MySQL Learning Notes 3 Label (Space Separation): Note MySQL Multi-table join query Internal links Through INNER JOIN... ON keyword implementation Specific grammar: SELECT field1,field2,...fieldn from table_name INNER JOIN join_table ON join_co ...

Posted by slshmily on Thu, 22 Aug 2019 04:05:42 -0700

SpringBoot Built-in tomcat Startup Principle

Preface SpringBoot developers have to say that they are working for the benefit of popular programming apes, making everyone used to being lazy, xml is not configured, even tomcat is lazy to configure, a typical one-button boot system, then how does tomcat start in spring boot?   Built-in tomcat The built-in tomcat is quite enough for us a ...

Posted by mazzzzz on Tue, 20 Aug 2019 01:54:13 -0700

Tomcat Source Code Analysis--Tomcat Startup Process

When it comes to starting Tomcat, we all know that we need to run the tomcat/bin/startup.sh script every time, and what exactly is the content of the script? Let's have a look. Start script startup.sh script #!/bin/sh os400=false case "`uname`" in OS400*) os400=true;; esac # resolve links - $0 may be a softlink PRG="$0" while [ ...

Posted by Fritz on Fri, 16 Aug 2019 02:45:17 -0700

Implementation of session sharing redis for TOMCAT hot deployment

JAVA-web Program Tomcat Container Publishing and Conventional Operation 1. Warpackage Publishing 1.1 Place the completed war package directly to% TOMCAT_HOME%/webapps/ 1.2 Modify% TOMCAT_HOME%/conf/server.xml to add nodes to the host node doc ...

Posted by locomotive on Thu, 15 Aug 2019 23:34:43 -0700

Tomcat Source Code Analysis--Tomcat Class Loader

Before looking at tomcat class loading, let's review or consolidate java's default class loader. The landlord used to be ignorant about class loading, so he took this opportunity to review it well. The landlord opened the second edition of the magic book "Deep Understanding of Java Virtual Machine", p227, about the class loader. See: ...

Posted by Mark Nordstrom on Thu, 15 Aug 2019 00:58:09 -0700

web Common Object 02

Session Effect Identify a session, or confirm a user, and share data during a session (multiple requests from a user).Obtain The request.getSession() method creates objects without sessions, or obtains session objects for the current session.Method getId() - Get the session identifier getCreationTime() ...

Posted by benjudy on Tue, 13 Aug 2019 02:37:54 -0700

Deploy java project within 4 k8s

One is to create nfs (maste node operation, two node nodes also need to be installed) 1 First install an nfs server and configure the shared directory. [yx@tidb-tidb-02 ~]$ cat /etc/exports /home/yx/hnf *(rw,no_root_squash) //Then start nfs 2 Then create a dynamic feed of NFS PV on master, requiring three files, class.yaml deployment.yaml rba ...

Posted by tom2oo8 on Sat, 10 Aug 2019 11:22:46 -0700

servlet learning notes: the architecture of servlet

Articles Catalogue 1. Overall structure 2. Common methods 2.1 Servlet Common Methods 2.2 Generic Servlet common methods Common methods of 2.3Http Servlet 3.Servlet life cycle (important) 3.1 Define a class `LifeServlet'` 3.2 HTML page 3.3web.xml 3.4 Observations 3.5 Summary 4.url-pattern configur ...

Posted by Ilyes on Sat, 10 Aug 2019 05:08:09 -0700