Due to its flexible configuration, high-speed iteration, and strong compatibility, SpringCloud Alibaba has attracted widespread attention from many domestic developers in recent years. Among them, Sentinel is quite brilliant as an open source component of service governance, which can help solve many problems, such as: spike current limit, message peak shaving and valley filling, cluster flow control, real-time circuit breaker, etc. As a domestic Spring enthusiast, the most distressing thing is that there are too few advanced dry goods with strong operability!
Undoubtedly, the powerful Spring technology system is quite brilliant in various fields such as e-commerce, live broadcast, games, and finance. The popularity of microservices has made Alibaba's first one-stop solution, SpringCloud Alibaba, highly sought after by programmers from major factories! However, compared with the popularity of high-frequency interviews and investigations and the enthusiasm for pursuit, relevant operational system information on the market is rare. This creates confusion for many learners:
The framework only stays at the level that can be used, but it cannot be flexibly configured and used;
the performance encounters a bottleneck, and I don’t know how to locate and troubleshoot;
during the interview, I will always be asked: Have you read the source code of the framework?
In fact, when learning Spring, don't always stay in the use of the framework. Understanding and mastering the underlying principles and being familiar with the source code implementation, internalizing these into your own abstract thinking ability , and making flexible use of them are the important directions for you to break through the bottleneck and stand out!
However, it is quite laborious for one person to read the source code. If you have the guidance of your predecessors, you can avoid many detours. Here I recommend a SpringCloud Alibaba study note manual that is highly in line with market demand, focuses on technical learning methods, and has an excellent reputation
Let's take a look at the catalog of this SpringCloud Alibaba study notes manual
This study note booklet is ideal for:
- Have 0 to 1 year of work experience, have a strong interest in Spring development, and are impacting positions in large factories;
- Have more than 1 year of work experience, engaged in middleware development, distributed systems, basic technical support, high-availability architecture design and other related work;
- Programmers who encounter difficulties in dealing with high-concurrency scenarios and performance tuning, and want to expand design ideas;
- Engaged in traditional development, programmers who want to transform into Internet business, middleware development, and architecture design.
Chapter 1: Introduction to Microservices
With the development of the Internet, the scale of website applications is also constantly expanding, which leads to continuous changes in the system architecture. From the early days of the Internet to the present, the system architecture has generally gone through the following processes: Single application architecture ---> vertical application architecture ---> distributed architecture ---> SOA architecture ---> microservice architecture, of course There is a quietly rising Service Mesh (service grid). Next, let's take a look at what each system architecture looks like, and what are the advantages and disadvantages of each.
Chapter 2: Microservice Environment Construction
Chapter 3 Nacos Discovery--Service Governance
Nacos is dedicated to helping you discover, configure and manage microservices. Nacos provides a set of easy-to-use feature sets to help you quickly realize dynamic service discovery, service configuration, service metadata, and traffic management. As can be seen from the front, the function of nacos is a registration center, which is used to manage the registered microservices.
Chapter 4 Sentinel--Service Fault Tolerance
In the microservice architecture, we split the business into individual services, and the services can call each other. However, due to network reasons or their own reasons, the service cannot guarantee 100% availability of the service. If there is a problem with a single service , calling this service will cause network delay. If there is a large influx of network at this time, it will form task accumulation and eventually lead to service paralysis.
Chapter 5 Gateway--Service Gateway
Spring Cloud Gateway is a gateway developed by Spring based on technologies such as Spring 5.0, Spring Boot 2.0 and Project Reactor. It aims to provide a simple and effective unified API routing management method for microservice architecture. Its goal is to replace Netflflflix Zuul, which not only provides a unified routing method, but also provides basic functions of the gateway based on the Filter chain, such as: security, monitoring and current limiting.
Chapter 6 Sleuth--Link Tracking
The main function of Spring Cloud Sleuth is to provide tracking solutions in distributed systems. It borrows heavily from Google Dapper's design
Chapter 7 Rocketmq--Message Driven
Chapter 8 SMS--Short Message Service
Short Message Service (Short Message Service) is a communication service capability provided by Alibaba Cloud for users.
Product advantages: comprehensive coverage, high concurrent processing, message accumulation processing, simple development and management, intelligent monitoring and scheduling
Product functions: SMS notification, SMS verification code, promotion SMS, asynchronous notification, data statistics
Application scenarios: SMS verification code, system information push, Promotion SMS etc.
Chapter 9 Nacos Config--Service Configuration
Chapter 10 Seata--Distributed Transactions
The design goal of Seata is non-intrusive to business, so it starts from the 2PC solution without business intrusion, and evolves on the basis of traditional 2PC. It understands a distributed transaction as a global transaction that includes several branch transactions. The responsibility of the global transaction is to coordinate the branch transactions under its jurisdiction to reach a consensus, either successfully commit together, or fail and roll back together. In addition, usually the branch transaction itself is a local transaction of the relational database
Contents of SpringCloud Alibaba Study Notes Manual
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As the saying goes, too many skills don't weigh you down, not to mention that in the employment needs of major factories, the "Spring Microservice System" is at the right time, and it will raise your own value! Friends who are interested in business interface development, middleware research and development, distributed systems, e-commerce/finance/live broadcast back-end development, high-availability platform design and other related fields, don't miss it!