The Dubbo interface test is not as tall as you think!
1. What is Dubbo?
Dubbo is a high-performance and excellent service framework open sourced by Alibaba.
A distributed service framework, high-performance and transparent RPC remote service invocation scheme, and SOA service governance scheme.
The figure below is the evolution of Alibaba's technical solutions, from single application -> application layering -> distributed -> service-oriented
2. What is the Dubbo interface?
In order to improve efficiency, the R&D team has implemented a set of data interaction protocols for the Dubbo framework, and the interface that uses this protocol to transmit data is the Dubbo interface.
Three, the difference?
What is the difference between Dubbo and http, WebService, and WebSocket interfaces?
First, the interface is the realization of a piece of descendant code, a method, and a function.
For example, the most common login interface:
This login method may be any of http, Dubbo, WebService interfaces, if the background uses the Dubbo framework, then it is a Dubbo interface.
If the background Apach CXF is a WebService interface.
Fourth, Dubbo infrastructure
Five, zookeeper
ZooKeeper is a distributed, open source distributed application coordination service, an open source implementation of Google's Chubby, and an important component of Hadoop and Hbase.
It is a software that provides consistent services for distributed applications.
The functions provided include: configuration maintenance, domain name service, distributed synchronization, group service, etc.
Dubbo recommends using zookeeper as the registration center.
6. Service provider
Provided by developers and deployed by operation and maintenance personnel.
Seven, serving consumers
Serving consumers is our main method of testing the Dubbo interface. Writing a consumer code test is the most direct way, but for students who have no code foundation or are unfamiliar with the Dubbo framework, it is simply a disaster.
Is there any other way to test it?
Yes, there are currently two ways to allow students without any code foundation to test the Dubbo interface without stress, one is using the jmeter plug-in, and the other is the telnet command we are going to introduce to you today.
1. Check whether the telnet command is available
If it prompts that telnet is not an internal or external command, it means that the operating system has not enabled the telnet service.
As shown in the figure:
Then we need to turn on the telnet service.
Specific steps: Control Panel->Programs->Programs and Features->Turn Windows features on or off->Check telnet related services.
As shown in the figure:
2. The telnet command
After entering the interface, press Enter and you will see dubbo> indicating that you have successfully connected.
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