The technical principles of the BRPC Java framework in the Java class library

BRPC is a high -performance, scalable Java remote process call (RPC) framework. It provides a simple and easy -to -use API that helps developers to realize cross -network methods in a distributed system.The design goal of BRPC is to provide high -performance and low -delay RPC communication, while maintaining a simple and easy -to -use development experience. The implementation principle of BRPC mainly includes the following aspects: 1. Communication protocol: BRPC uses a TCP -based transmission protocol for network communication, and data interaction is used to connect the client and server through the socket connection.The TCP protocol can provide reliable connection and streaming data transmission, which is suitable for remote method calls in distributed systems. 2. Serialization and deserture: In RPC calls, data needs to be transmitted on the network.BRPC uses an efficient serialization mechanism to convert data into byte flow, and recover raw data on the receiving end.BRPC supports a variety of serialization methods, including the serialization mechanism of Java, JSON, Protobuf, etc. Developers can choose the most suitable serialization method according to the needs. Below is an example of Java code based on Protobuf as an example: // Define the type of the protobuf message syntax = "proto3"; message Request { string message = 1; } message Response { string message = 1; } // Define the RPC service interface service HelloService { rpc sayHello(Request) returns (Response); } // Implement the RPC service interface public class HelloServiceImpl implements HelloService { @Override public Response sayHello(Request request) { String message = request.getMessage(); return Response.newBuilder().setMessage("Hello, " + message).build(); } } // Client call public class Client { public static void main(String[] args) { // Create an RPC client RpcClient rpcClient = new RpcClient("127.0.0.1", 8888); // Create the proxy object of HelloService HelloService helloService = rpcClient.createProxy(HelloService.class); // Construction request object Request request = Request.newBuilder().setMessage("World").build(); // Call the remote method Response response = helloService.sayHello(request); // Output response results System.out.println(response.getMessage()); } } // The service side starts public class Server { public static void main(String[] args) { // Create an RPC server RpcServer rpcServer = new RpcServer(8888); // Register HELLOSERVICE implementation class rpcServer.register(HelloService.class, new HelloServiceImpl()); // Start the RPC server rpcServer.start(); } } 3. Load balancing and fault -tolerant treatment: In a distributed system, the client may connect multiple service providers at the same time to improve the availability and load balancing of the system.BRPC supports a variety of load balancing strategies, including random selection, rotation, and weighted rotation inquiries.In addition, BRPC also provides a fault -tolerant treatment mechanism for network failure and service call failure, such as the retry mechanism and circuit breaker mode to ensure the stability and reliability of the system under abnormal situations. BRPC provides rich functions and flexible configuration options, allowing developers to customize and expand according to different needs.By using the BRPC framework, developers can easily build high -performance and reliable distributed systems to realize cross -network methods.