LIfe is half spent before we know what is it.
Cache List and write file persistence
You need to cache a List set, such as the contents of an input box that the user has previously entered. The next time the user wants to write in the input box, he will call the cached interface to take out and return the previously entered items from the c ...
Posted on Tue, 12 Nov 2019 13:38:51 -0800 by jkatcherny
Spring Boot log processing are you still using Logback?
The previous article focuses on the configuration of Log4j2, and this article focuses on the application of unified log processing. The following includes HTTP request log processing and Exception exception log processing.
HTTP request log
1. Clear ...
Posted on Sat, 09 Nov 2019 06:01:50 -0800 by burhankhan
I. reading guidance
If thousands of list data are loaded at one time, it will be very time-consuming to display on the web page, and the user experience is not good. Therefore, paging query is essential when dealing with the display of large data query results. Paging query must be accompanied by certain sorting rules, otherwise the status of ...
Posted on Wed, 06 Nov 2019 16:45:13 -0800 by gtcol
The data saved in ThreadLocal can only be private to the current thread and not visible to other threads
Declare a global variable threadLocal with the initial value of 1. Access and modify the settings through three threads. In theory, the final value of threadLocal should be 6. However, our output result is 3, which shows that the dat ...
Posted on Sat, 02 Nov 2019 22:36:19 -0700 by jamiller
One thing I forgot to mention in the last article is that nacos has the highest load priority. Service startup takes priority to pull configuration information. So I didn't talk about the configuration file created in nacos center in the last service building
You can see that both the service port and the registry are configured in the configu ...
Posted on Wed, 30 Oct 2019 18:10:20 -0700 by no3dfx
In the last article, we talked about how to build a registry. This time, we talked about how to use nacos as a registry.
Spring cloud Alibaba basis to create basic dependency
First of all, we create a spring cloud Alibaba basis basic dependency project to work out the common version we want to use.
spring boot version 2.1.7.RELEASE
Posted on Sun, 27 Oct 2019 17:58:59 -0700 by banks1850
Get the most expensive item in each order
Knowledge points used:Custom sort, including general sort, secondary sort and group sortCustom partition
2. Data input and output format
Data input format:
One record per sold item
Order id commodity id commodity price
0000001 Pdt_01 222.8
0000002 Pdt_06 722.4
0000001 Pdt_05 25.8
Posted on Thu, 24 Oct 2019 14:15:47 -0700 by skalooky
Pure read-write separation (myba ...
Posted on Tue, 22 Oct 2019 08:02:08 -0700 by Teaky
This article details the Optional class and how to use it to eliminate null checking in your code. Before we start, let's look at what NPE is and how to deal with it before Java 8.
NullPointException (NPE for short) can be said to be an exception that all Java programmers have encountered. Although Java has tried to let programmers get rid of p ...
Posted on Tue, 22 Oct 2019 04:52:26 -0700 by jarosciak
1. Spring Spel l or Google Aviator can be used in Java
If you use Aviator, add the following dependencies
Posted on Mon, 14 Oct 2019 11:28:43 -0700 by kjtocool