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There are thousands of people in the vast sea. Thank you for seeing here this second. I hope my article is helpful to you! May you keep your love and go to the mountains and seas in the future! 😋 I/O advanced flow 😎 1. Buffer flow Buffered streams, also known as efficient streams, are enhancements to output and input streams. 🐏 ...

First, briefly explain the use of MyBatis, and then focus on several core principles of MyBatis. MyBatis easy to use MyBatis can be divided into the following key points Introducing MyBatis dependency Configure mybatis config XML configuration file Create database entity class and Mapper mapping file Load the configuration through S ...

Author | sparrow Source| Alibaba cloud official account This article is from Arthas. It was submitted in March 2021. The way of participation in the award-winning essay in April can be seen at the end of the article. The project initially used Arthas for two purposes: Through arthas, we can solve the problem of realizing the performance pr ...

preface Recently, when debugging a monitoring application indicator, it was found that the timer did not execute after the service was started and executed once. The timer used here is the scheduling thread pool ScheduledThreadPoolExecutor of Java. Later, after troubleshooting, it was found that if the processing task of the ScheduledThreadPoo ...

preface Before the launch of nacos, eureka was basically the first choice for the registration center of the whole family bucket system of spring cloud. With the emergence of nacos, more and more micro service projects based on spring cloud use nacos as the registration center, but does this mean that eureka has no place to use force? In fact, ...

National unified naming test for higher education self-study examination in April 2021 Java language programming (I) Course code (04747) matters needing attention: This paper is divided into two parts. The first part is multiple-choice questions and the second part is non multiple-choice questions. Candidates must answer in the designated ...

  The installation method provided in this article is applicable to jdk1 Users of version 8 (with the method and configuration of installing jdk1.8)   First of all, I need to explain Because jdk1 8 has javafx, so we don't need to download the plug-ins related to javafx, just install jdk1 8 is enough   1.jdk1.8 Download and configuration ...

Transaction management in Spring Before understanding the business: say a lie and withdraw money, such as you go ATM There are generally two steps to withdraw 1000 yuan by machine: first, enter the password amount and deduct 1000 yuan from the bank card; then ATM Pay 1000 yuan. Both steps must be performed or neither. If the bank card deducts ...

The official has also changed this knowledge point twice Bitmap can be said to be the most common memory consumer in Android. Many oom problems we encounter in the development process are caused by it. Google officials have also been iterating over its pixel memory management strategy. From Android 2.3.3 to 2.3-7.1 on the java heap, and back t ...

Previous: SpringCloud 2020-SpringCloud config distributed configuration center (note) 1. Message driven overview 1.1 INTRODUCTION Shield the differences between the underlying message middleware, reduce the switching version, and unify the programming model of message Official website: https://spring.io/projects/spring-cloud-stream h ...