Programmer Group

1 Overview Http request is essential in server development. In this paper, RestTemplate is used as the facade and HttpClient is used as the implementation to demonstrate the basic Http request example. 2 source code analysis 2.1 add pom.xml dependency RestTemplate is built in the spring web module, and spring boot is introduced automatically ...

new function Allow consumers to get from the most recent copy Increase support for incremental cooperative rebalancing for consumer rebalancing protocol New MirrorMaker 2.0 (MM2), new multi cluster cross data center replication engine Introducing a new Java authorized program interface Supports non key connections in KTable Adminis ...

I'm trying to create a messaging application in Android. If I use: Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND); This will launch the built-in Android App; I tried to send mail without using this app by clicking the button directly. #1 building This is an alternative version, which is also useful for me, wi ...

Build a simple web project by using idea, mvn and spring Recently, we have been using webstorm for front-end development and verification, but we haven't studied how to integrate back-end development. Now we have time to simply understand the process of front-end and back-end integration. In the middle Experienced person If th ...

We have introduced the knowledge points of Spring Cloud and oauth2 in the previous several articles. Today, we will use Spring Cloud and oauth2 to build commonservice SSO service. In this section, we just build the basic platform of commonservice SSO. If you don't talk about it, record the steps directly: 1. Create the maven project commonserv ...

Test text data used by the program: Dear River Dear River Bear Spark Car Dear Car Bear Car Dear Car River Car Spark Spark Dear Spark 1 main categories (1) Maper class The first is the custom Maper class code public class WordCountMap extends Mapper<LongWritable, Text, Text, IntWritable> { public void map(LongWritable key, Text val ...

Today, I tried to build a fastdfs environment. There is no problem for fastdfs to test the upload function on the server side. The project can also be uploaded normally on the intranet, but the image and other information cannot be uploaded normally on the Internet. The Internet firewall has paid attention to that all the configurations of fast ...

Recently, the project involves the function of a scheduled task, so I have studied the usage of crontab in recent days, and successfully opened this function on my computer according to the related online tutorials   Laravel + crontab Add crontab configuration 1. Execute command $ crontab -e   2. Add the following (path/to is the applicatio ...

order This paper mainly studies the expression for retrymessage filter of rocketmq MessageFilter rocketmq-all-4.6.0-source-release/store/src/main/java/org/apache/rocketmq/store/MessageFilter.java public interface MessageFilter { /** * match by tags code or filter bit map which is calculated when message received * and stored in co ...

1. Dynamic and Static Separation of LAMPWhen an efficient web architecture needs to be built, static-dynamic separation is undoubtedly the best option. This post will write down how LAMP is deployed. So-called LAMP?LAMP architecture is one of the most mature application modes for enterprise websites. It refers to a set of systems and related s ...