protected async void GetEmployeeCollection()
{
Response2 = string.Empty; //清空前台显示
using var channel = GrpcChannel.ForAddress(ServerAdderss);
var client = new EmployeeService.EmployeeServiceClient(channel);
//发送请求，注意和一元模式不同的是，使用client调用存根方法的返回类型是AsyncServerStreamingCall
using var serverStreamingCall =
client.GetEmployeeCollection(
new GetEmployeeCollectionRequest
{ //两个查询参数而已，没啥
IsValid = true,
SearchTerm = Request2.Trim()
});
var responseStream = serverStreamingCall.ResponseStream;
//读取流数据，调用响应流的MoveNext方法
while (await responseStream.MoveNext(new CancellationToken()))
{
// 将消息显示到前端
Response2 += responseStream.Current.Employee + Environment.NewLine;
}
}
