http2dubbo 入参支持Integer类型

[xgj2440620200]

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Ⅰ. Issue Description

http2dubbo验证接口多参数、多类型，java dubbo 服务的接口参数声明为 string 和 integer 时，会报错 given param not match the type .

Ⅱ. Describe what happened

java dubbo 服务的接口参数分别string 和 string 不会报错，string 和 Long 不会报错， string 和 integer 是会报错 can not transcode the request because the given param not match the type

If there is an exception, please attach the exception trace:

[Envoy (Epoch 0)] [2024-06-26 14:45:41.801][49][warning][filter] Failed to resolve headers, error is INVALID_ARGUMENT: can not transcode the request because the given param not match the type
{"authority":"localhost","bytes_received":"0","bytes_sent":"90","downstream_local_address":"172.23.0.7:80","downstream_remote_address":"172.23.0.1:59090","duration":"0","istio_policy_status":"-","method":"GET","path":"/dubbo/test?name=abcdddc&age=2","protocol":"HTTP/1.1","request_id":"381cf076-6c78-42d0-8159-d67c77fea2dc","requested_server_name":"-","response_code":"400","response_flags":"-","route_name":"-","start_time":"2024-06-26T14:45:41.801Z","trace_id":"-","upstream_cluster":"outbound|20880||providers:com.example.demo.dubbo.api.DemoService::.DEFAULT-GROUP.public.nacos","upstream_host":"-","upstream_local_address":"-","upstream_service_time":"-","upstream_transport_failure_reason":"-","user_agent":"curl/7.29.0","x_forwarded_for":"172.23.0.1"}

Ⅲ. Describe what you expected to happen

期望返回 {"result":"Hello abcdddc#2"}

Ⅳ. How to reproduce it (as minimally and precisely as possible)

1. 申明dubbo接口

   
   package com.example.demo.dubbo.api;

public interface DemoService {

String sayName(String name, Long age);

String sayHello(String name);

}

3. 实现 dubbo 接口

package com.example.demo.dubbo.service;

import com.example.demo.dubbo.api.DemoService;

import org.apache.dubbo.config.annotation.DubboService;

@DubboService public class DemoServiceImpl implements DemoService {

@Override
public String sayName(String name, Integer age ) {
    return "Hello " + name + "#" + age;
}

@Override
public String sayHello(String name) {
    return "Hello " + name;
}

}

5. 部署 dubbo 服务到nacos， 并参考 [http2dubbo](https://higress.cn/zh-cn/docs/user/dubbo)，配好 http2dubbo 的路由和协议转换，其中CRD配置如下：

apiVersion: networking.higress.io/v1 kind: Http2Rpc metadata: name: httproute-http2rpc-demo namespace: higress-system spec: dubbo: service: com.example.demo.dubbo.api.DemoService version: group: methods:

• serviceMethod: sayHello headersAttach: "*" httpMethods:
  • "GET" httpPath: "/dubbo/hello" params:
  • paramKey: name paramSource: QUERY paramType: "java.lang.String"
• serviceMethod: sayName headersAttach: "*" httpMethods:
  • "GET" httpPath: "/dubbo/test" params:
  • paramKey: name paramSource: QUERY paramType: "java.lang.String"
  • paramKey: age paramSource: QUERY paramType: "java.lang.Integer"

7. curl 命令验证

单个参数

curl "localhost/dubbo/hello?name=abcdddc"

期待返回

{"result":"Hello abcdddc"}

多个参数，不同类型

curl "localhost/dubbo/test?name=abcdddc&age=2"

期待返回

{"result":"Hello abcdddc#2"}

### Ⅴ. Anything else we need to know?
拉了 higress 主分支的源码，搜到如下信息：
![image](https://github.com/alibaba/higress/assets/20533911/64bf50e2-f676-4697-ad1a-b4f51c00aac7)
![image](https://github.com/alibaba/higress/assets/20533911/2fb6c051-4786-461a-b1e8-72e99a1a052e)

### Ⅵ. Environment:

- Higress version:  1.4.0
- OS : centos7
- Others: java、dubbo3服务使用dubbo协议

[johnlanni]

cc @sjtuzbk

[sjtuzbk]

目前只支持Long，不支持Integer

[johnlanni]

@xgj2440620200 json 里的数字类型只能映射为一种固定的 java 类型，目前是 long

[xgj2440620200]

@johnlanni dubbo 接口是旧服务， 里面是有些 Integer 类型的参数， 有没办法兼容呢

[johnlanni]

@sjtuzbk 帮忙修改下issue描述，方便社区同学认领开发