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Reprint: http://blog.csdn.net/zhshulin Using SSM( spring Spring MVC, Spring MVC and Mymatis have been more than three months. There are no technical difficulties in the project. Based on the existing technology, we can achieve the desired functions. Of course, there must be many areas for improvement. The integration process of SSM was ...

Implementation with zookeeper It is an effective solution for high availability of ActiveMQ. The principle of high availability is to register all ActiveMQ Broker s using ZooKeeper (cluster). Only one of the brokers can provide services (i.e. Master nodes) to the outside world, while the other brokers are standby and are considered Slave. If ...

From here Preface Custom View principles are the foundation Android developers must understand. Before you can learn about custom View s, you need to have a certain knowledge base; This article will provide a comprehensive overview of all the knowledge bases in Custom View. 1. Classification of Views ViewViewViews are divided into two m ...

Preface Android often implements timing services, pushing messages or updating data at a certain time. Generally, we may open the service, use Alarm Manager and setRepeating timing requests in Service, but since API 19, it can not guarantee the accuracy of the timeliness. After 5.0, Google launched a JobService to execute some background proc ...

Technology is something that needs to be accumulated over time, learning a little new things every day, and reviewing the old things. Only in this way, if you persist for a period of time, your ability can be improved. It is not that you check when you use it, but that you pay more attention to discovering new things to study and discovering wh ...

In fact, spring boot uses logback by default. And if we want to use log4j, we can... Because the built-in Tomcat can be recorded directly using the log4j class For example: import org.apache.log4j.Logger; private Logger log = Logger.getLogger(this.getClass()); Of course, only in application.yml Here's a brief explanation: logging: level ...

github synchronous update Blog Synchronization Updates Synchronized Updating of Brief Books Reference address Project address: Portal 1. Create table structure create database mybatis; use mybatis; CREATE TABLE users(id INT PRIMARY KEY AUTO_INCREMENT, NAME VARCHAR(20), age INT); INSERT INTO users(NAME ...

In fact, I don't learn much, I just understand others, and then change it to my own, so for some common points of knowledge sometimes I can't write them out by myself, so sort out my commonly used small points of knowledge. 1. Frequently asked questions about creating an activity The newly created activity must be configured in the manifest ...

MyBatis MyBatis is an excellent persistence framework that supports customized SQL, stored procedures, and advanced mapping. MyBatis avoids almost all JDBC code and manual parameter setting and retrieving result sets. MyBatis can use simple XML or annotations to configure and native Map s, mapping interfaces and Java POJOs(Plain Old Java Object ...

Preface The use of animation is a common knowledge in Android development This article will introduce in detail the principle of attribute animation in Android animation Animation Types A series of articles on Android animation For the use of animation, please refer to the article:Android Attribute Animation: This is a very detailed su ...