building architecture software

finished writing your code, the reader can start Eureka-server, eureka-client, and Eureka-consumer-feign. To track how the Eureka-consumer-feign service consumes the interface of the Eureka-client service /dc , and can also observe its load balancing effect by initiating multiple eureka-client services.From now on, I will record the process and the essence of the recently developed Springcloud micro-service cloud architecture, and help more friends w

To learn and master the architecture of building large websites, we need to summarize the scattered articles and sort out the scattered contents. It is meaningful but difficult to do this well. In our experience, we may wish to grasp the following topics, analyze the instances of large websites one by one, and then compare them horizontally. 1. Database Data storage has always been troublesome, especially w

18.6 Load Balancing Cluster introductionThe software that realizes load Balancing cluster is: LVS, keepalived, Nginx, Haproxy and so on. The LVS belong to four layer (network OSI model), Nginx belongs to seven layer, haproxy can be considered as four layer, also can be used as seven layer.LVS, Haproxy this four-tiered load balancer can distribute communications other than 80 ports, such as MySQL-3306, and Nginx only supports Http,https,mail.In contras

", StringComparison.OrdinalIgnoreCase) >=0) Redirect2writabledb=true; if(SQL. IndexOf ("CREATE", StringComparison.OrdinalIgnoreCase) >=0) Redirect2writabledb=true; if(SQL. IndexOf ("ALTER", StringComparison.OrdinalIgnoreCase) >=0) Redirect2writabledb=true; ////If it is a stored procedure, the default is to take writable DB. if(Redirect2writabledb | | commandtype = =commandtype.storedprocedure) {returnDbconfiguration.writabledb; } Else { intRandom

. Writing this, I first felt: Why do I have to use Java? So finally I can only say, Just Play, as Dave says, in a real project, code generation is not as useful as it seems, but at least you have a good scaffold ~ ~ ~ clarify a few misconceptions 1 This architecture does not rely on code to generate Java and then modify it based on the generated code. Instead, generate bytecode in memory! This is not the same as rails. 2 In addition to the existing f

MARIADB Mysql-u Root Show master status; Record log file name and location values Grant replication Slave on . to ' rep ' @ ' 192.168.190.% ' identified by ' 123456 '; # #允许192.168.190.0 network segment from the server using the account password login Flush privileges; MySQL from server configuration VIM/ETC/MY.CNF #[mysqld] Under server_id=2 Systemctl Restart MARIADB Mysql-u Root Change Master to master_host= ' 192.168.190.130

1.1 What is software buildThe word "build", beyond the realm of software, is what we think of as the work of "construction workers" in building a house, a school, or even a skyscraper.If developing software is like writing a Hello world, or as simple as writing a arithmetic calculator, you don't need to build it, just

Someresource { @POST @Path ("/testpost") @Produces ("application/ JSON ") public string Testpost (String request) { return" Response: "+ Request; }}The parameter request above will automatically receive a JSON string from the client, then you can choose to parse the JSON and deserialize it into the Pojo object for the next step.Finally, the result is serialized into JSON and dropped back to the client.All right, everything's done!!To launch Tomcat, you can access your serv

We will analyze the whole project of Common-service and record the whole construction process, so that more followers can refer to the study.First, before building the common-service of Spring cloud, we need to prepare the technology:MAVEN (project Building), Spring Boot, Spring Cloud, microservices concept, decentralized thinking, distributed, etc., for top-of-the-line projects in Common-service, where we

; user name, email, mobile phone authentication login, mobile phone Verification Code acquisition, verify the user is bound, etc.), and finally for multi-service service orchestration, In this way, the micro-service architecture is being done.These are some of my experiences in doing projects or architectures to share with everyone, gossip less, the following is the code structure of the entire architecture

indicates that the libapache2-mod-php7.0 installation was successful and PHP7 successfully loaded the module libphp7.0.soinstall MySQL:Weirubo@weirubo-VirtualBox: ~$ sudo apt-get install mysql-server You will be asked to enter the root password during installation.Install Php7.0-mysql:Weirubo@weirubo-VirtualBox: ~$ sudo apt-get install PHP7. 0-mysql To restart MySQL:Weirubo@weirubo-VirtualBox: ~$ sudo service mysql restart To restart Apache:Weirubo@weirubo-VirtualBox: ~$ sudo service ap

information from Eureka Fetch -registry:false Availability-zones:honghu:honghuzone service-url:honghuzone:http://honghu:[ Emailprotected]:8761/eureka/defaultzone:http://honghu:[emailprotected]:8761/eureka/instance: Prefer-ip-address:true hostname:localhost metadataMap:zone:honghuZone User: ${SECURITY.USER.N AME} password: {security.user.password} # Specify Environment Environment:dev #指定数据中心 Datacenter:honghu # Turn off self-protection mode Type Server:enable-self-preservation:false #设置清理无

registration information from Eureka Fetch -registry:false Availability-zones:honghu:honghuzone service-url:honghuzone:http://honghu:[ Emailprotected]:8761/eureka/defaultzone:http://honghu:[emailprotected]:8761/eureka/instance: Prefer-ip-address:true hostname:localhost metadataMap:zone:honghuZone User: ${SECURITY.USER.N AME} password: {security.user.password} # Specify Environment Environment:dev #指定数据中心 Datacenter:honghu # Turn off self-protection mode Type Server:enable-self-preservation

return true, so the filter will take effect for all requests. In practice we can use this function to specify the effective range of the filter.Run: The specific logic of the filter. Here we use Ctx.setsendzuulresponse (false) to make Zuul filter the request, do not route it, and then set its return error code via CTX.SETRESPONSESTATUSCODE (401). Of course, we can also further optimize our return, for example, by Ctx.setresponsebody (body) to return the body content to edit and so on.After impl

follows a very simple principle: as long as one side connects the nodes, information can be propagated and synchronized. What do you mean? Let's take a look at what happens in the following experiment. Scenario One: Let's say we have 3 registries, we'll peer1, Peer2, and Peer3 each point serviceurl to another two nodes. In other words, Peer1, Peer2 and Peer3 are 22 registered with each other. Start the three service registries and point the Compute-service serviceurl to Peer1 and start

As a large web site UE practitioners, attention and discussion is more human-computer interaction, is the user experience, the concept of the user is a person. And in fact the site has another visitor is we need to pay attention to, that is the search engine spiders. Do not think that this is not a part of the UE, spiders are also users, is our service object. And the spider to your website experience good or bad everyone should know the result. So what factors should we consider when we are doi

binary log, from the server in command mode and row mode for execution and replication, so the master and slave server to open the binary log.1. Configure the primary serverVIM/ETC/MY.CNF [mysqld] log-bin=/var/log/mysql/mysql-bin.log # Log path server-id=230 # Service ID, I understand is used for multi-service differentiation, network only OneRestart mysqld after configuration, log on to master server MySQL to authorize from server userMysql> GRANT REPLICATION SLAVE on * * to ' myuser ' @ ' 192

How to better design the software architecture is an eternal key topic in the software engineering field. Over the past few decades, the international software engineering community has made great strides in Software Architecture

, we can specify that the name of the microservices will follow the call and only use that name to access the service.eureka.client.serviceUrl.defaultZoneProperty corresponds to the configuration content of the service registry, specifying the location of the service registry.In order to test differentiated service providers and service registries on this computer, use server.port the properties to set different ports.Once the project is started, visit: http://localhost:1111/As you can see, our

code and understand the path and structure of the call from the front to the back. At the same time the code inside this is to write the chaos, and will not infect other code, the so-called infection is a complex difficult to understand, difficult to debug, difficult to maintain code, will not cause other files or functions of the code difficult to understand, debugging and maintenance.5. Reduce the loading force. In the early stages of the project, all kinds of loading force, what needs analys