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Ten thousand years ago, I wanted to write an article to record the implementation of the QR code function. I didn't expect that it would be now. Today is Saturday~~~ Now there are a lot of tripartite libraries about scanning code on the Internet. Of course, these are all extended based on the framework of zxing. Here I ...

Question: The following two configuration items are configured in application.properties ccb.ip.address=10.25.177.31 ccb.ip.port=1600 The configuration in the application.properties configuration file cannot be read in the following problem code Question code: public class BISFrontFileUtil { private static Logger logger = LoggerFactor ...

Guide reading A few days ago, I discussed with a friend about their company's system problems, traditional single application and cluster deployment. He said that there might be a risk of instantaneous increase in the concurrent volume of services in the near future. Although the cluster is deployed, the request delay is still very large after ...

Proto 3 and proto 2 are very different. Most of the Internet is about proto 2. Because of the habit of using the latest library, we insist on integrating proto 3 build.gradle configuration under Project directory google() jcenter() mavenCentral() } dependencies { classpath 'com.android.tools.build:gradle: ...

Share this article ZXing and Dynamsoft Java Barcode SDK Use in three scenarios. Java Barcode application My test image contains various types of barcodes. Add ZXing and Dynamsoft Barcode Reader to Maven's profile: <repositories> <repository> <id>dbr</id> <url>https://download.dynams ...

In version 7.x, Token verification is added to Toast, which is true. However, when show() is called to display Toast, if a time-consuming operation gets stuck in the main thread for more than 5 seconds, BadTokenException exception will be thrown. At the beginning of 8.x system, Google will try catch int ...

We know that the Java running environment for Android devices with lower version (4.X and below, SDK < 21) is Dalvik virtual machine. Compared with the higher version, the biggest problem is that the first cold start takes a long time after installing or upgrading the update. This often takes tens of seconds or even minutes. Users have to fa ...

background knowledge In deep learning, data preprocessing takes up a large part of our training process. How to use different databases to load our data is particularly important. So this blog will combine Data loading in tensorflow 2.0 The official documentation describes how to load our own tagged d ...

When the picture cannot be displayed, please check the original text: https://lessister.site/2019/10/29/fabric-transaction-endorser-source/ Article directory Technological process Macro transaction process Chain code calling process Proposal endorsement process Source code analysis Proposal definit ...

Node access add, delete, modify and query And get page element type, but node operation uses node level relationship to get elements Getting elements by parent-child sibling relationship Logical, but less compatible Generally, a node has at least three basic attributes: nodeType, nodeName and nodeVal ...