Today's project, because of the use of spring asynchronous concurrent execution, this error occurred. And occasionally, especially when the project is just started, such problems may occur
java.util.concurrent.ExecutionException: java.lang.ArrayIndexOutOfBoundsException: 3
at java.util.concurrent.FutureTask.report(FutureTask.java:122) ...
Posted by blacklotus on Sun, 05 Apr 2020 19:58:19 -0700
The responsibility chain pattern of Java design pattern
Purchase approval project of school OA system: requirements are
Traditional solution OA system approval, traditional design solution
Basic introduction to responsibility chain mode
Responsibility chain mode to solve OA system procurement approval
Source co ...
Posted by mwgi2005 on Sun, 05 Apr 2020 07:41:09 -0700
1. Docker virtual image production practice I
1) Docker commit enables the container to be submitted as a new image. The submitted image automatically enters the image list of the current system (the contents of the container image are complete);
docker commit 7ec01484db55 centos7:v1
2) Docker export can implement containe ...
Posted by nafetski on Sun, 05 Apr 2020 06:03:50 -0700
1. After opening eclipse, create a new web project:
new -- dynamic web project
Click Finish to finish the new project!
Adjust font size:
window -- preferences
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-i ...
Posted by jack5100nv on Sat, 04 Apr 2020 03:19:53 -0700
1. Put the public configuration file in resources, the development environment, production environment and test environment in resources.dev, resources.test and resources.prod respectively
2. Set in pom.xml
<!--Put the corresponding unique resources(dev,tes ...
Posted by ambivalent on Fri, 03 Apr 2020 07:13:34 -0700
Premise of use:
stub dummy data is used when the interface does not exist (i.e. message 404)
Exception capture method
Where is the configuration file read?
EnvironmentInit implements ApplicationListener ...
Posted by david4u on Fri, 03 Apr 2020 05:10:15 -0700
Three zookeeper nodes are required
Four solr nodes.
Using pseudo distributed to implement solr cluster. Three zookeeper instances and four tomcat instances are required, which can be simulated on a virtual machine. More than 1G memory is recommended for virtual machines.
Solr instance building
Step 1: crea ...
Posted by zorgon on Wed, 01 Apr 2020 19:42:14 -0700
There are so many specific features of Spring Session. The specific content can be learned from the document. The author makes a summary. The features of Spring Session include but are not limited to the following:
Use GemFire to build httpSession of C/S architecture (not concerned)
Use the third-party warehouse to realize the cluster sessi ...
Posted by ron814 on Wed, 01 Apr 2020 06:13:29 -0700
Learning notes are notes made according to my own needs and understanding after learning the core technology of Spring Boot 2.0 in-depth practice by brother Ma on mooc.com.
Spring boot is built based on spring, that is to say, Spring Framework is the basis of learning spring boot well.
First of all, the premise of und ...
Posted by NiallThistle on Sun, 22 Mar 2020 09:18:17 -0700
There are two ways to write in the import resource path
A classpath, a classpath*
So what's the difference between the two?
1.**classpath: * * only find files in your class path;
2. * * callsspath *: * * not only includes class path, but also includes jar file (class path) for searching, * * * classpath *: * * * is very important for multi ...
Posted by superdezign on Tue, 17 Mar 2020 08:25:54 -0700