Introduction to Spring MVC

Introduction to Spring MVC It is better to have a spring foundation to learn Spring MVC, because Spring MVC also uses spring's IOC technology when creating objects. The role of Spring MVC: Spring MVC is the framework of presentation layer in ssm framework, which is mainly used for the purpose of inter ...

Posted on Wed, 17 Jun 2020 03:45:34 -0400 by jhoop2002

My development diary

Today, I mainly did the basic data management of the test user module, and encountered a relatively large problem. The user attributes are all IDS, but they need to be converted to the corresponding string type when returned to the front end, and then there are various kinds of validation of non mandatory parameters. A complex SQL, especially i ...

Posted on Tue, 16 Jun 2020 00:46:03 -0400 by RynMan

Spring AOP Learning Notes 03: Acquisition Enhancer for Core Implementation of AOP

  Above Describes how spring opens AOP, simply by registering the AnnotationAwareAspectJAutoProxyCreator class with the container, because this class eventually implements the BeanPostProcessor interface and completes the creation of the AOP proxy object in its postProcessAfterInitialization() method when the bean init method is executedAfter ...

Posted on Mon, 15 Jun 2020 22:49:31 -0400 by sm

AJAX and JSON in java learning

Let's talk about A jax and JSON today. In the process of project construction, the technology of ajax is generally used for front and back platform interaction, and the data of front and back interaction is made with json. Let's take a look at what ajax and json are. Ajax 1. What is ajax? AJAX is a t ...

Posted on Mon, 15 Jun 2020 05:12:34 -0400 by reliable

Wechat code scanning payment (detailed code)

Wechat code scanning payment Recently, when the project was rebuilt, she was responsible for the payment module. WeChat scan code payment (NATIVE) and Alipay scan code payment were also the first contact. Although it was written out according to official documents and some blogs, there were many proble ...

Posted on Mon, 15 Jun 2020 04:48:05 -0400 by ams007

hadoop high availability installation (HA)

High availability hadoop installation HA Write at the beginning Installation procedure 1. Distribute JDK 1.1 install jdk 2. Synchronization time 3. Configuration file check before installation 4. Secret key free settings of NN and other three machines 5. No secret key between two NN 6. Modify some c ...

Posted on Mon, 15 Jun 2020 03:30:10 -0400 by ludachris

Spring source code analysis 10: automatic configuration of Mybatis in spring boot

Article catalog 1, Foreword 2, MybatisAutoConfiguration 1. Declaration of mybatisautoconfiguration. 2. SqlSessionFactory injection 3. Injection of autoconfiguredmapperscannerregistrar 4. Encapsulation of mypper MapperFactoryBean 3, MapperScannerConfigurer 1. processPropertyPlaceHolders(); 2. Gener ...

Posted on Sun, 14 Jun 2020 05:41:37 -0400 by labourstart

Android architecture component -- ViewBinding learning notes

Android architecture components – ViewBinding learning notes 1. Problems solved The purpose of ViewBinding is to reduce the use of template code findViewById(int), improve development efficiency, and simplify the code of Activity and Fragment. 2. Using ViewBinding The use of ViewBinding req ...

Posted on Sun, 14 Jun 2020 04:40:48 -0400 by Wes1890

Spring boot core log

1. Log framework Xiao Zhang; develop a large system; ​ 1, System.out.println(""); print key data on the console; remove the "key data" button? Write in a file? 2. Framework to record some runtime information of the system; log framework; zhanglogging.jar ; 3. How many functions ar ...

Posted on Sun, 14 Jun 2020 00:41:48 -0400 by jobs

Stage 5: microservice system development: Spring Cloud getting started operation manual (day01)

Stage 5: distributed system development: microservice system development (day01) http://doc.canglaoshi.org/ Article catalog Chapter 1: Spring Cloud development environment Chapter 2: introduction to spring cloud framework Section 1: introduction to the concept of spring cloud Section 2: composition ...

Posted on Sat, 13 Jun 2020 06:18:57 -0400 by mlewis