Learn Spring Security Essays

Introduction Just after learning Spring Security, I integrated it with Springboot and found it wasn't as cumbersome as they said. Just configure a class and then inject it into the Aop container to cut in. It can be said that its root interceptor is a bit like but not as cumbersome It can be implement ...

Posted on Fri, 28 Feb 2020 21:34:03 -0500 by flappy_warbucks

java data structure 17 HashSet class details

1.Set interface introduction The Set interface inherits from the Collection. There is no new method in the Set interface, and the method is exactly the same as the Collection. The method we learned in the previous List is still applicable in Set. Therefore, there will be no difficulty in learning how ...

Posted on Fri, 28 Feb 2020 08:00:04 -0500 by michalurban

Multithreaded notes - disruptor

disruptor can be understood as a framework of production and consumption http://ifeve.com/disruptor-getting-started/ This framework is very powerful in terms of data. It's called 1s processing 6 million data (not 6 million consumption). Here's to learn 1, Hello World Data container: //Data carrier, Encapsulate the data to be passed public clas ...

Posted on Fri, 28 Feb 2020 07:49:06 -0500 by novice_php

A summary of Java reflection

reflex 1. Method of obtaining Class object public class Test { public static void main(String[] args) { //Get Class object through Class Class clazz1 = Student.class; //Get Class object from object Student s = new Student(18, 0); Class clazz2 = s.getClass(); //Through the forName static ...

Posted on Fri, 28 Feb 2020 07:08:57 -0500 by manimoor

Rocketmq? 03? Message sending

Article directory RocketMq message sending 1, Message consumption mode Cluster message Broadcast message 2, Message sending 1. Synchronous transmission 2. Asynchronous transmission 3. Single message 4. Bulk message sending 5. Delayed message sending Retry mechanism producer retry consumer retry ...

Posted on Fri, 28 Feb 2020 07:06:32 -0500 by kabucek

Hadoop (Hadoop data compression & Yarn resource scheduler) IV & V of big data technology

4.1 Summary Compression overview   Compression strategy and principle   4.2 MR Supported compression codes Table 4-7 Compressed format hadoop? algorithm File extension Whether it can be divided Whether the original program nee ...

Posted on Fri, 28 Feb 2020 06:26:25 -0500 by spaceknop

Mybatis -- map file 2

select to return to List select element Select element to define the query operation Id: unique identifier To reference this statement, it needs to be consistent with the method name of the interface parameterType: parameter type It can not be passed. MyBatis will automatically infer based on ...

Posted on Fri, 28 Feb 2020 03:24:08 -0500 by steamPunk

Thread pool ThreadPoolExecutor and Executors framework

1, Advantages of thread pool Reduce resource loss, improve response speed and improve thread manageability 2, ThreadPoolExecutor thread pool Important property description of ThreadPoolExecutor: corePoolSize: the number of core threads. If the number of running threads is less than corePoolSize, ...

Posted on Fri, 28 Feb 2020 02:47:27 -0500 by happyness

Using XML technology to get data through traversal

XML has many advantages over txt. First of all, it has self description; second, it is structured, and the whole document forms a tree structure; moreover, many voices provide support for XML, and there are related class libraries for our development. Now, I want to use xml to store a question and the c ...

Posted on Fri, 28 Feb 2020 01:13:12 -0500 by chimp1950

Android.mk collection in the source code of fancy Pendant

1, Build app by version Recently, when I was modifying the Camera application in Android P, I saw the power of mk, so I'd like to record it. ifeq ($(MTK_CAMERA_APP_VERSION), 3) LOCAL_ROOT_PATH:= $(call my-dir) include $(LOCAL_ROOT_PATH)/host/Android.mk include $(LOCAL_ROOT_PATH)/portability/Android.m ...

Posted on Fri, 28 Feb 2020 00:20:30 -0500 by hagen00