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Posted to notifications@dubbo.apache.org by "TremblingV5 (via GitHub)" <gi...@apache.org> on 2023/06/05 09:39:58 UTC
[GitHub] [dubbo] TremblingV5 opened a new issue, #12459: Dubbo3 + grpc 远程调用的参数和结果均为空
TremblingV5 opened a new issue, #12459:
URL: https://github.com/apache/dubbo/issues/12459
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### Environment
* Dubbo version: 3.2.2 & 3.2.0
* Operating System version: Windows 11
* Java version: JDK 17
### Steps to reproduce this issue
github url for this issue: https://github.com/TremblingV5/dubbo-grpc-demo
我使用Dubbo3和grpc尝试搭建一个简单的demo，主要依赖库的版本信息如下：
```xml
<dubbo.version>3.2.2</dubbo.version>
<springboot.version>2.7.8</springboot.version>
<protoc.version>3.7.1</protoc.version>
<grpc.version>1.55.1</grpc.version>
```
这个demo已经上传到了github，上方链接即这个demo的链接。我调用相关接口，获取远程调用的结果，发现是空字符串；使用Idea打断点debug发现，一开始构建的请求体和返回体是正常的，但是经过远程调用后全部变为了空，怀疑可能是序列化的问题？
demo的配置文件如下：
```yml
dubbo:
application:
name: Consumer
registry:
address: nacos://localhost:8848
consumer:
check: false
protocol:
name: dubbo
host: 127.0.0.1
port: 12346
server:
port: 9090
```
```yml
dubbo:
protocol:
name: dubbo
host: 127.0.0.1
port: 12345
application:
name: Producer
registry:
address: nacos://localhost:8848
```
发生这个问题时，控制台没有输出任何日志信息。
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[GitHub] [dubbo] icodening commented on issue #12459: Dubbo3 + grpc 远程调用的参数和结果均为空
Posted by "icodening (via GitHub)" <gi...@apache.org>.
icodening commented on issue #12459:
URL: https://github.com/apache/dubbo/issues/12459#issuecomment-1576925784
你使用了`dubbo`协议，换成`tri`试试
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[GitHub] [dubbo] icodening commented on issue #12459: Dubbo3 + grpc 远程调用的参数和结果均为空
Posted by "icodening (via GitHub)" <gi...@apache.org>.
icodening commented on issue #12459:
URL: https://github.com/apache/dubbo/issues/12459#issuecomment-1584749505
@TremblingV5
我看了下你的demo发现其中以下几个问题：
1. consumer模块直接依赖了producer模块，实际上会走`injvm`导致没有走Triple的处理逻辑
2. `hello.proto`中声明的方法名是大写，而生成的代码是小写的，会出现找不到方法
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[GitHub] [dubbo] TremblingV5 commented on issue #12459: Dubbo3 + grpc 远程调用的参数和结果均为空
Posted by "TremblingV5 (via GitHub)" <gi...@apache.org>.
TremblingV5 commented on issue #12459:
URL: https://github.com/apache/dubbo/issues/12459#issuecomment-1581814755
> 你使用了`dubbo`协议，换成`tri`试试
我把`dubbo`分别换成了`tri`和`grpc`进行尝试，但是这两种写法并没有解决问题
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[GitHub] [dubbo] icodening commented on issue #12459: Dubbo3 + grpc 远程调用的参数和结果均为空
Posted by "icodening (via GitHub)" <gi...@apache.org>.
icodening commented on issue #12459:
URL: https://github.com/apache/dubbo/issues/12459#issuecomment-1584717478
@TremblingV5
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[GitHub] [dubbo] TremblingV5 closed issue #12459: Dubbo3 + grpc 远程调用的参数和结果均为空
Posted by "TremblingV5 (via GitHub)" <gi...@apache.org>.
TremblingV5 closed issue #12459: Dubbo3 + grpc 远程调用的参数和结果均为空
URL: https://github.com/apache/dubbo/issues/12459
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[GitHub] [dubbo] TremblingV5 commented on issue #12459: Dubbo3 + grpc 远程调用的参数和结果均为空
Posted by "TremblingV5 (via GitHub)" <gi...@apache.org>.
TremblingV5 commented on issue #12459:
URL: https://github.com/apache/dubbo/issues/12459#issuecomment-1585669920
非常感谢您能查看我的代码帮我解决问题，按照您提出的问题进行修改后，现在已经没有这个问题了。
解决问题的修改包括：
1. 新增一个子项目用于存放`.proto`文件和生成的代码，使consumer不依赖producer
2. `.proto`文件中声明方法名改为使用小写字母
3. `application.yml`中指定`dubbo.protocol.name`的值为`grpc`
非常感谢
> @TremblingV5 我看了下你的demo发现其中以下几个问题：
>
> 1. consumer模块直接依赖了producer模块，实际上会走`injvm`导致没有走Triple的处理逻辑
> 2. `hello.proto`中声明的方法名是大写，而生成的代码是小写的，会出现找不到方法
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