Programmer Help

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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, ...

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 ...

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 ...