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# gRPC Spring Boot Starter | ||
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[![Build Status](https://travis-ci.org/yidongnan/grpc-spring-boot-starter.svg?branch=master)](https://travis-ci.org/yidongnan/grpc-spring-boot-starter) | ||
[![Maven Central with version prefix filter](https://img.shields.io/maven-central/v/net.devh/grpc-spring-boot-starter.svg)](http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22net.devh%22%20grpc) | ||
[![MIT License](https://img.shields.io/github/license/mashape/apistatus.svg)](LICENSE) | ||
[![Crowdin](https://badges.crowdin.net/grpc-spring-boot-starter/localized.svg)](https://crowdin.com/project/grpc-spring-boot-starter) | ||
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[![Client-Javadoc](https://www.javadoc.io/badge/net.devh/grpc-client-spring-boot-autoconfigure.svg?label=Client-Javadoc)](https://www.javadoc.io/doc/net.devh/grpc-client-spring-boot-autoconfigure) | ||
[![Server-Javadoc](https://www.javadoc.io/badge/net.devh/grpc-server-spring-boot-autoconfigure.svg?label=Server-Javadoc)](https://www.javadoc.io/doc/net.devh/grpc-server-spring-boot-autoconfigure) | ||
[![Common-Javadoc](https://www.javadoc.io/badge/net.devh/grpc-common-spring-boot.svg?label=Common-Javadoc)](https://www.javadoc.io/doc/net.devh/grpc-common-spring-boot) | ||
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README: [English](README.md) | [中文](README-zh-CN.md) | ||
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**文档:** [English](https://yidongnan.github.io/grpc-spring-boot-starter/en/) | [中文](https://yidongnan.github.io/grpc-spring-boot-starter/zh-CN/) | ||
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QQ交流群:294712648 | ||
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## 特性 | ||
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* 在 spring boot 应用中,通过 `@GrpcService` 自动配置并运行一个嵌入式的 gRPC 服务。 | ||
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* 使用 `@GrpcClient` 自动创建和管理您的 gRPC Channels 和 stubs | ||
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* 支持[Spring Cloud](https://spring.io/projects/spring-cloud) (向 [Consul](https://github.com/spring-cloud/spring-cloud-consul) 或 [Eureka](https://github.com/spring-cloud/spring-cloud-netflix) 或 [Nacos](https://github.com/spring-cloud-incubator/spring-cloud-alibaba) 注册服务并获取 gRPC 服务端信息) | ||
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* 支持[Spring Sleuth](https://github.com/spring-cloud/spring-cloud-sleuth)作为分布式链路跟踪解决方案(如果[brave-instrument-grpc](https://mvnrepository.com/artifact/io.zipkin.brave/brave-instrumentation-grpc)存在) | ||
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* 支持全局和自定义的 gRPC 服务端/客户端拦截器 | ||
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* 支持 [Spring-Security](https://github.com/spring-projects/spring-security) | ||
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* 支持metric (基于[micrometer](https://micrometer.io/)/[actuator](https://github.com/spring-projects/spring-boot/tree/master/spring-boot-project/spring-boot-actuator) ) | ||
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* 也适用于 (non-shaded) grpc-netty | ||
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## 版本 | ||
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2.x.x.RELEASE 支持 Spring Boot 2.1.x/2.2.x 和 Spring Cloud Greenwich / Hoxton。 | ||
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最新版本: `2.5.1.RELEASE` | ||
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( `2.4.0.RELEASE` 用于 Spring Boot 2.0.x & Spring Cloud Finchy). | ||
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1.x.x.RELEASE 支持 Spring Boot 1 & Spring Cloud Edgware, Dalston, Camden. | ||
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最新版本: `1.4.2.RELEASE` | ||
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**注意:** 该项目也可以在没有 Spring-Boot 的情况下使用,但是您需要手动配置一些 bean。 | ||
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## 用法 | ||
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### gRPC 服务端 + 客户端 | ||
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使用一下命令添加 Maven 依赖项: | ||
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````xml | ||
<dependency> | ||
<groupId>net.devh</groupId> | ||
<artifactId>grpc-spring-boot-starter</artifactId> | ||
<version>2.5.1.RELEASE</version> | ||
</dependency> | ||
```` | ||
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Gradle: | ||
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````gradle | ||
dependencies { | ||
compile 'net.devh:grpc-spring-boot-starter:2.5.1.RELEASE' | ||
} | ||
```` | ||
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### gRPC 服务端 | ||
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使用一下命令添加 Maven 依赖项: | ||
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````xml | ||
<dependency> | ||
<groupId>net.devh</groupId> | ||
<artifactId>grpc-server-spring-boot-starter</artifactId> | ||
<version>2.5.1.RELEASE</version> | ||
</dependency> | ||
```` | ||
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Gradle: | ||
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````gradle | ||
dependencies { | ||
compile 'net.devh:grpc-server-spring-boot-starter:2.5.1.RELEASE' | ||
} | ||
```` | ||
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在服务端接口实现类上添加 `@GrpcService` 注解。 | ||
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````java | ||
@GrpcService | ||
public class GrpcServerService extends GreeterGrpc.GreeterImplBase { | ||
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@Override | ||
public void sayHello(HelloRequest req, StreamObserver<HelloReply> responseObserver) { | ||
HelloReply reply = HelloReply.newBuilder().setMessage("Hello ==> " + req.getName()).build(); | ||
responseObserver.onNext(reply); | ||
responseObserver.onCompleted(); | ||
} | ||
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} | ||
```` | ||
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默认情况下,Grpc 服务器将监听端口 `9090`。 端口的配置和其他的 [设置](grpc-server-spring-boot-autoconfigure/src/main/java/net/devh/boot/grpc/server/config/GrpcServerProperties.java) 可以通过 Spring 的属性机制进行更改。 服务端的配置使用 `grpc.server.` 前缀。 | ||
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详情请参阅我们的[文档](https://yidongnan.github.io/grpc-spring-boot-starter/)。 | ||
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### gRPC 客户端 | ||
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使用一下命令添加 Maven 依赖项: | ||
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````xml | ||
<dependency> | ||
<groupId>net.devh</groupId> | ||
<artifactId>grpc-client-spring-boot-starter</artifactId> | ||
<version>2.5.1.RELEASE</version> | ||
</dependency> | ||
```` | ||
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Gradle: | ||
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````gradle | ||
dependencies { | ||
compile 'net.devh:grpc-client-spring-boot-starter:2.5.1.RELEASE' | ||
} | ||
```` | ||
在 grpc 客户端的的 stub 字段上添加 `@GrpcClient(serverName)` 注解。 | ||
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* 请不要将 @GrpcClient 与 `@Autowireed` 或 `@Inject` 一起使用。 | ||
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````java | ||
@GrpcClient("gRPC server name") | ||
private GreeterGrpc.GreeterBlockingStub greeterStub; | ||
```` | ||
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**注意:** 你可以将相同的 grpc 服务端名称用于多个 channel, 也可以使用不同的 stub (甚至使用不同的 stub 拦截器) | ||
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然后您可以向您的服务器发送查询,就像这样: | ||
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````java | ||
HelloReply response = stub.sayHello(HelloRequest.newBuilder().setName(name).build()); | ||
```` | ||
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可以单独配置每个客户端的目标地址。 但在某些情况下,您可以仅依靠默认配置。 您可以通过 `NameResolver.Factory` Bean 类自定义默认的 url 映射。 如果您没有配置那个Bean,那么默认的 uri 将使用默认方案和名称(如:`dns:<name>`): | ||
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这些配置和其他的 [设置](grpc-client-spring-boot-autoconfigure/src/main/java/net/devh/boot/grpc/client/config/GrpcChannelProperties.java) 可以通过 Spring 的属性机制进行更改。 客户端使用`grpc.client.(serverName)。` 前缀。 | ||
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详情请参阅我们的[文档](https://yidongnan.github.io/grpc-spring-boot-starter/)。 | ||
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## 使用 (non-shaded) grpc-netty 运行 | ||
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这个库支持`grpc-netty`和`grpc-nety-shaded`。 后一种可能会防止与不兼容的 gRPC 版本冲突或不同 netty 版本之间的冲突。 | ||
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**注意:** 如果在classpath 中存在 shaded netty, 则 shaded netty 将使用有线与 non-shaded grpc-netty。 | ||
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您可以在 Maven 中这样使用。 | ||
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````xml | ||
<dependency> | ||
<groupId>io.grpc</groupId> | ||
<artifactId>grpc-netty</artifactId> | ||
<version>${grpcVersion}</version> | ||
</dependency> | ||
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<!-- For both --> | ||
<dependency> | ||
<groupId>net.devh</groupId> | ||
<artifactId>grpc-spring-boot-starter</artifactId> | ||
<version>...</version> | ||
<exclusions> | ||
<exclusion> | ||
<groupId>io.grpc</groupId> | ||
<artifactId>grpc-netty-shaded</artifactId> | ||
</exclusion> | ||
</exclusions> | ||
</dependency> | ||
<!-- For the server (only) --> | ||
<dependency> | ||
<groupId>net.devh</groupId> | ||
<artifactId>grpc-server-spring-boot-starter</artifactId> | ||
<version>...</version> | ||
<exclusions> | ||
<exclusion> | ||
<groupId>io.grpc</groupId> | ||
<artifactId>grpc-netty-shaded</artifactId> | ||
</exclusion> | ||
</exclusions> | ||
</dependency> | ||
<!-- For the client (only) --> | ||
<dependency> | ||
<groupId>net.devh</groupId> | ||
<artifactId>grpc-client-spring-boot-starter</artifactId> | ||
<version>...</version> | ||
<exclusions> | ||
<exclusion> | ||
<groupId>io.grpc</groupId> | ||
<artifactId>grpc-netty-shaded</artifactId> | ||
</exclusion> | ||
</exclusions> | ||
</dependency> | ||
```` | ||
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Gradle: | ||
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````groovy | ||
compile "io.grpc:grpc-netty:${grpcVersion}" | ||
compile 'net.devh:grpc-spring-boot-starter:...' exclude group: 'io.grpc', module: 'grpc-netty-shaded' // For both | ||
compile 'net.devh:grpc-client-spring-boot-starter:...' exclude group: 'io.grpc', module: 'grpc-netty-shaded' // For the client (only) | ||
compile 'net.devh:grpc-server-spring-boot-starter:...' exclude group: 'io.grpc', module: 'grpc-netty-shaded' // For the server (only) | ||
```` | ||
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## 示例项目 | ||
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在 [这里](examples)可以阅读更多关于我们的示例项目。 | ||
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## 排除故障 | ||
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请参阅我们的[文档](https://yidongnan.github.io/grpc-spring-boot-starter/en/trouble-shooting)寻求帮助。 | ||
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## 参与贡献 | ||
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我们始终欢迎您对项目作出任何贡献。 详见[CONTRIBUTING.md](CONTRIBUTING.md)。 |
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