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Mybatis application 1 Introduction to Mybatis and coding process 2 mapper agent development method 3 global profile 4 input mapping and output mapping 5 Association query 6 delayed loading 7 dynamic SQL 8 Mybatis cache 1, What is Mybatis Mybatis reference website: http://www.mybatis.org/mybatis-3/zh/index.html Github source address: ht ...

SpringMVC The resume of spring MVC is based on spring. Spring learning reference Spring learning notes 1, Integration with Web 1. Integration of spring and Web Environment 1.1 ApplicationContext application context acquisition method The application context object is obtained through the new ClasspathXmlApplicationContext(spring config ...

Preface: content tips of this article Create a Spring Boot based web project on Idea. When the client browser accesses the web service resources with get, put, post, etc., the server can make correct results. Install Postman software and test your web with Postman. 1, Create a Spring Boot based web project on IDEA The specific steps ...

Connecting zookeeper related bug s After learning about ssm recently, you need to further study dubbo and its required registration center zookeeper. However, a bug was encountered when writing an introductory case, which is as follows: Caused by: java.lang.IllegalStateException: zookeeper not connected at org.apache.dubbo.remoting.zookeepe ...

✍, Spring, spring MVC and Mybatis framework integration Every time you build an SSM framework integration environment, you always need to configure dependencies in advance. Every time you add a configuration, you need to look through the official website documents or notes, which is a waste of time and sometimes cited errors.This paper integra ...

SpringBoot Basics SpringBoot overview SpringBoot: SpringBoot provides a way to quickly use Spring. Based on the idea that convention is better than configuration, developers do not have to switch between configuration and business logic, which greatly improves the development efficiency. Spring disadvantages Cumbersome configuration Al ...

2.IOC container 1.IOC container 1. What is IOC (control reversal) (1) leave the object creation and the calling process between objects to Spring for management (2) purpose of using IOC: to reduce the coupling degree (3) People's case is IOC implementation 2.IOC underlying principle xml parsing, factory schema, reflection (1) .xml parsin ...

Preface Recently, I need to use multi-threading, it is very difficult to maintain thread pool by myself. I happen to see an example of springboot integrated thread pool. Here I try and summarize it, record it, and share it with friends I need. This multithreaded implementation is relatively simple, regardless of transactions. There are the fo ...

preface Spring's cache cache is similar to java's JDBC. It defines a set of specifications. Third party caching needs to implement this set of specifications in order to use the caching function through the Spring API. The core interfaces of this specification are CacheManager and cache. CacheMananger is the entry to get the cache. Cache is an ...

First create a crud project. controller calls service and mapper The following is replaced by simple code controller @GetMapping("/getUserById") public String getUserById(String id){ String userById = userService.getUserById(id); return userById; } service @Override public String getUserById(String ...