Rust和Java互相调用

使用 Rust 调用 Java 开发的 Dubbo 服务。

1 前置条件

  • 安装 Rust 开发环境
  • 安装 protoc 工具
  • 安装 Java 开发环境

2 运行示例 Java 版本的 Dubbo provider

Java 版本的 Dubbo provider 示例源码见https://github.com/apache/dubbo-samples/tree/master/3-extensions/protocol/dubbo-samples-triple。

Clone 源代码、编译构建，并运行 provider：

$ # clone 源代码
$ git clone https://github.com/apache/dubbo-samples.git
$ cd dubbo-samples/dubbo-samples-triple/

$ # 构建
$ mvn clean compile package -DskipTests

$ # 运行 provider
$ java -Dprovider.port=8888 -jar ./target/dubbo-samples-triple-1.0-SNAPSHOT.jar
# ……省略部分日志
Dubbo triple stub server started, port=8888

Java 侧的接口定义

3 运行 Rust 版本的 Dubbo consumer

Rust 版本的 Dubbo consumer 示例源码见https://github.com/apache/dubbo-rust/tree/main/examples/greeter。

Clone 源代码、编译构建，并运行 consumer：

$ # clone 源代码
$ git clone https://github.com/apache/dubbo-rust.git
$ cd dubbo-rust/examples/greeter/

$ # 构建
$ cargo build

$ # 运行 consumer，调用provider
$ ../../target/debug/greeter-client
# unary call
Response: GreeterReply { message: "hello, dubbo-rust" }
# client stream
client streaming, Response: GreeterReply { message: "hello client streaming" }
# bi stream
parts: Metadata { inner: {"content-type": "application/grpc", "date": "Wed, 28 Sep 2022 23:54:56 GMT"} }
reply: GreeterReply { message: "server reply: \"msg1 from client\"" }
reply: GreeterReply { message: "server reply: \"msg2 from client\"" }
reply: GreeterReply { message: "server reply: \"msg3 from client\"" }
trailer: Some(Metadata { inner: {"grpc-message": "poll trailer successfully.", "grpc-accept-encoding": "gzip,identity", "content-type": "application/grpc", "grpc-status": "0"} })
# server stream
parts: Metadata { inner: {"content-type": "application/grpc", "date": "Wed, 28 Sep 2022 23:54:56 GMT"} }
reply: GreeterReply { message: "msg1 from server" }
reply: GreeterReply { message: "msg2 from server" }
reply: GreeterReply { message: "msg3 from server" }
trailer: Some(Metadata { inner: {"content-type": "application/grpc", "grpc-message": "poll trailer successfully.", "grpc-accept-encoding": "gzip,identity", "grpc-status": "0"} })

Rust侧的接口定义

最后修改 March 2, 2023: Fix alias forward in docs3-v2 (#2342) (f16c1535592)