Yarn questions

Some common questions about Yarn Three Scheduling Strategies of Yarn Yarn preemptive Three Scheduling Strategies of Yarn    ideally, the application's request for Yarn resources should be satisfied immediately, but in reality, resources are often limited, especially in a very busy clus ...

Posted on Sat, 01 Feb 2020 23:47:07 -0800 by ShadowX

Day32 -- configure AOP based on XML

I. review We talked about using annotations to configure AOP. Today we talk about using XML to configure AOP The source code of this article has been uploaded to the "resources" of this blog. You can download it for free if you need 2, Knowledge reserve Use XML, so delete some annotations, ...

Posted on Sat, 01 Feb 2020 07:37:35 -0800 by designsubway

9. [kowtow to Spring] - IoC's parsing < bean > tag: start the parsing process

import tag parsing is finished. Let's take a look at the parsing process of the most complex and important tag bean tag in Spring. 1. processBeanDefinition In the method ා parseDefaultElement(...), if the label is bean, the ා processBeanDefinition(Element ele, BeanDefinitionParserDelegate delegate) ...

Posted on Fri, 31 Jan 2020 13:23:42 -0800 by snuggles79

Let me show you how Mybatis annotation works

There are two ways for Mybatis to write sql, i.e. through xml and annotation. I prefer xml configuration, but annotation needs to be understood. In addition, xml in Mybatis takes precedence over annotation loading, that is, if the method in DAO interface has corresponding xml configuration, adding annot ...

Posted on Fri, 31 Jan 2020 12:31:16 -0800 by Eckstra

Using Aspectj to implement AOP ------------ configuration through XML annotation

In the last article https://blog.csdn.net/wyf2017/article/details/81239476 We briefly introduced that AOP is implemented in classes through Aspectj. Next, we will introduce how to implement AOP in xml at the end of next week First, we delete all the annotations written in the class, as shown below package com.Demo6; public ...

Posted on Fri, 31 Jan 2020 08:07:51 -0800 by Brendan Nolan

Mybatis generatorconfig auto generate

Document preparation Using Mybatis Generator requires Two jar packages -- mybatis-generator-core-1.3.2.jar and database connection jar package A configuration file GeneratorConfig.xml (encoded in UTF-8) Execution statement File download link: https://download.csdn.net/download/evlisric/10559545 There are two ways of path ...

Posted on Fri, 31 Jan 2020 05:03:18 -0800 by gljaber

android version update and download install android 7.0

The version update before android 7.0 is actually quite simple. You only need to use the system downloader to complete the download and installation. However, after android 7.0 upgrades the security mechanism, the download and installation are limited. Here I have installed several tools for developers to use: add permission ...

Posted on Fri, 31 Jan 2020 04:54:31 -0800 by tbone05420

Spring MVC receives form data and data binding

There are three ways to receive form data.   1. Receive form data using simple types (bind simple data types) Form: <form action="${pageContext.request.contextPath}/userController/handler" method="post"> User name: < input name = "username" type = "text" / > < br / > Password: < input name = & ...

Posted on Fri, 31 Jan 2020 03:15:05 -0800 by powlow

AspectJ pointcut indicators - 04 target and @ target

target() Match all method executions of the target class and its subclasses to @target() Match the class whose target object is annotated by a specific annotation Final class structure chart 1,Factory package com.test.aspectj.expression; /** * Factory interface */ public interface Factory { // Make product ...

Posted on Thu, 30 Jan 2020 07:49:56 -0800 by teng84

How to return JSON and XML in springboot

The first time I wrote a blog in CSDN, right should be used to record my learning experience. I've always wanted to find out how to implement it in springboot, that is, to support JSON data return format and XML at the same time. Today, I finally implemented it and measured it myself, so it's qualit ...

Posted on Thu, 30 Jan 2020 00:32:13 -0800 by linux_pickle