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First, set sail Based on the principle of from nothing to have, from having to being excellent, we plan to realize the function through web first, and then optimize it to socket. 1. Technology selection The web framework uses the gmvc framework written before( Handwritten MVC framework (I) - start again )Message storage adopts the way of existi ...

Provide an interface package com.ming.MyBatis; import com.ming.MyBatis.POJO.Role; import com.ming.MyBatis.POJO.Student; import com.ming.MyBatis.POJO.StudentCard; import org.apache.ibatis.annotations.Param; import java.util.List; import java.util.Map; public interface RoleMapper { /** * @param id * @return */ public Rol ...

Spring Cloud Stream is a framework for building message driven microservices. Based on Spring Boot, the framework integrates spring integration to connect message broker middleware (RabbitMQ, Kafka, etc.), provides personalized automatic configuration implementation, and introduces three core concepts: publish subscribe, consumption group and p ...

Xiaobian public address: java paradise Source codehttps://gitee.com/hjj520/spring-cloud-2.x 1. What is a service provider Service Provider: refers to the callee of the service (i.e. the service that provides services for other services); Service Provider, as an Eureka Client, performs service registration, renewal and offline op ...

Preface Today, we share with you springboot's integration of activeMq's topic (Theme) - Publish / subscribe mode, similar to the WeChat public number. We can receive messages when we are concerned about the public. Topic needs consumers to subscribe before they can receive messages. If there is no consumer subscription, the message generated b ...

In JSP, the method to get the IP address of the client is: request.getRemoteAddr(), which is effective in most cases. However, after passing Apache, Squid, nginx and other reverse proxy software, the real IP address of the client cannot be obtained. After the proxy, because the middle layer is added between the client and the s ...

The use of Zuul in Web projects is shown above< Using Zuul in SpringBoot >, the following example is Zuul's use in Spring Cloud. Development tool: IntelliJ idea February 3, 2019 I. server side 1. Create project Create a new spring boot project named "zuul Eureka server" in IDEA, select 2.1.10 for spring boot version, and che ...

First, set up the hadoop environment under win10, hadoop can runExtract the installation package and source package of Hadoop 2.7.7, create an empty directory after decompression, and copy all the jar packages under the unpacked source package and other packages except kms directory package under share/hadoop under the installation package to ...

  Dependency: Spring context, spring MVC, Shiro core, Shiro spring, Shiro Web To be honest: web.xml,spring,springmvc configuration files are very difficult General effect     Code structure (built with web skeleton)    pom.xml <dependencies> <dependency> <groupId>junit</groupId> <a ...

First, import the jar package, commons-codec.jar. You can use maven or go to the maven official website to download the jar https://mvnrepository.com/artifact/commons-codec/commons-codec/1.12 <dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version ...