Tag：java
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Time：2020-1-19
Spring cloud (Part 008) movie microservice uses application.yml configuration file to configure the ribbon’s load balancing scheduling algorithm on the client side – 1、 General introduction 1. The application.yml configuration is used to set the scheduling algorithm for load balancing on the ribbon client; 2. The client load balancing algorithm is tested by two code […]
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Time：2020-1-19
The structure of the tree is almost the same. Now we say that a data structure is called hash table. What is the use of hash table? We know that the time complexity of tree operation is usually o (logn). Is there a faster data structure? Of course, it is a hash table; 1. Introduction […]
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Time：2020-1-18
Spring cloud (Part 001) simple user microservices – 1、 General introduction Through the restapi interface / simple / {ID} to simply obtain the user information in the H2 database, and the fields in the database and the fields of the entity user class map to each other. 2、 Implementation steps 2.1 add Maven reference package […]
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Time：2020-1-18
The example of this article describes how to implement the conversion between XML and JSON in Java. To share with you for your reference, as follows: Narrator: Recently, the conversion between XML and JSON has been confused. Here’s a demo for future use. Topic: The project format is: Jar packages are checked out one by […]
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Time：2020-1-17
Spring cloud (Part 011) movie ribbon microservice, separated from Eureka, uses listofservers configuration for client load balancing scheduling – 1、 General introduction 1. By trying to break away from the service governance framework and the Eureka ecosystem, the client load balancing scheduling is operated separately; 2. This chapter only uses resttemplate.getforobject to test the client […]
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Time：2020-1-17
Abstract:Netty is a NiO framework that can easily and quickly develop protocol server and client network applications. It greatly simplifies the network programming of TCP or UDP server, but you can still access and use the underlying API. Netty just abstracts it at a high level. I. Preface Netty is a NiO framework that can […]
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Time：2020-1-17
I haven’t written the project from scratch for a long time. When I wrote the experiment of software engineering, I found that I was fuzzy about the concept of this thing again, so I reviewed it and recorded it for later review. Mappedy overview Only onetoone, onetomany and manytomany have the mappedby attribute, which does […]
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Time：2020-1-17
Because the project needs to choose the data persistence framework, I took a look at several popular and unpopular frameworks. For complex business systems, the final conclusion is that jooq is the best in general, but it is not completely free. Finally, I chose JDBC template. Hibernate and mybatis are the two most commonly used […]
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Time：2020-1-17
Java is an object-oriented programming language. It not only absorbs the advantages of C + + language, but also discards the concepts of multi inheritance and pointer which are difficult to understand in C + +. Therefore, Java language has two characteristics: powerful function and easy to use. As a representative of the static object-oriented […]
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Time：2020-1-16
Preface Today, I saw a new course of Java on mooc.com (the first experience of netsocket for getting started with netty): https://www.imooc.com/learn/941 Websocket is a technology I’ve heard a lot about that I haven’t really used. I’ve known what websocket is before, but I haven’t practiced it. When I write a listener blog, I use […]
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Time：2020-1-16
Spring cloud (Part 012) movie microservice accesses feign for client load balancing, and calls remote http microservice through feign client – 1、 General introduction 1. This chapter mainly introduces using feign, a tool similar to Java HTTP client, to access remote HTTP server in spring cloud ecosystem; 2. Although we can use resttemplate, urlconnection, netty […]
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Time：2020-1-16
As anyone familiar with mybatis plus knows, mybatis plus provides two interfaces including predefined add, delete, modify and query operations: com.baomidou.mybatisplus.core.mapper.BaseMapper com.baomidou.mybatisplus.extension.service.IService Compared with these two interfaces, the operation is almost the same, and the name changes a little, such asBaseMapperIt’s called insert () in theIServiceIt’s called save (). Actually, I don’t know why I […]
