Question

在某些情况下，我需要发送带有正文的邮件：

“”

当我尝试使用以下代码进行操作时：

var sqsClient= new AmazonSQSClient(new BasicAWSCredentials("accessKeyId","SecretKey"), new AmazonSQSConfig()
{
 ServiceURL ="https://sqs.eu-west-1.amazonaws.com/"
});
//obj value is "" and provided from user
var result = sqsClient.SendMessageAsync("queueURL", obj.ToString()).Result;

我得到：

{Amazon.SQS.AmazonSQSException：请求必须包含参数邮件正文。 ---> Amazon.Runtime.Internal.HttpErrorResponseException：类型'Amazon.Runtime.Internal.HttpErrorResponseException'的异常被扔了。在 Amazon.Runtime.HttpWebRequestMessage.d__20.MoveNext（）在 E：\ JenkinsWorkspaces \ v3-trebuchet-release \ AWSDotNetPublic \ sdk \ src \ Core \ Amazon.Runtime \ Pipeline \ HttpHandler_mobile \ HttpRequestMessageFactory.cs：line 539 ---从上一个引发异常的位置开始的堆栈跟踪- System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务） Amazon.Runtime.Internal.HttpHandler 1.<InvokeAsync>d__9 1.MoveNext（）在 E：\ JenkinsWorkspaces \ v3-trebuchet-release \ AWSDotNetPublic \ sdk \ src \ Core \ Amazon.Runtime \ Pipeline \ HttpHandler \ HttpHandler.cs：line 175 ---从上一个引发异常的位置开始的堆栈跟踪- System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务） Amazon.Runtime.Internal.Unmarshaller.d__3 1.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Amazon.SQS.Internal.ValidationResponseHandler.<InvokeAsync>d__1 1.MoveNext（） ---从上一个引发异常的位置开始的堆栈跟踪- System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务）中的Amazon.Runtime.Internal.ErrorHandler.d__5 1.MoveNext() --- End of inner exception stack trace --- at Amazon.Runtime.Internal.HttpErrorResponseExceptionHandler.HandleException(IExecutionContext executionContext, HttpErrorResponseException exception) in E:\JenkinsWorkspaces\v3-trebuchet-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\ErrorHandler\HttpErrorResponseExceptionHandler.cs:line 60 at Amazon.Runtime.Internal.ErrorHandler.ProcessException(IExecutionContext executionContext, Exception exception) in E:\JenkinsWorkspaces\v3-trebuchet-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\ErrorHandler\ErrorHandler.cs:line 212 at Amazon.Runtime.Internal.ErrorHandler.<InvokeAsync>d__5 1.MoveNext（） E：\ JenkinsWorkspaces \ v3-trebuchet-release \ AWSDotNetPublic \ sdk \ src \ Core \ Amazon.Runtime \ Pipeline \ ErrorHandler \ ErrorHandler.cs：line 104 ---从上一个引发异常的位置开始的堆栈跟踪- System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务） Amazon.Runtime.Internal.CallbackHandler.d__9 1.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Amazon.Runtime.Internal.EndpointDiscoveryHandler.<InvokeAsync>d__2 1.MoveNext（） ---从上一个引发异常的位置开始的堆栈跟踪- System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）在 Amazon.Runtime.Internal.EndpointDiscoveryHandler.d__2 1.MoveNext() in E:\JenkinsWorkspaces\v3-trebuchet-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\Handlers\EndpointDiscoveryHandler.cs:line 79 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Amazon.Runtime.Internal.CredentialsRetriever.<InvokeAsync>d__7 1.MoveNext（）在 E：\ JenkinsWorkspaces \ v3-trebuchet-release \ AWSDotNetPublic \ sdk \ src \ Core \ Amazon.Runtime \ Pipeline \ Handlers \ CredentialsRetriever.cs：line 98 ---从上一个引发异常的位置开始的堆栈跟踪- System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务） Amazon.Runtime.Internal.RetryHandler.d__10 1.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at Amazon.Runtime.Internal.RetryHandler.<InvokeAsync>d__10 1.MoveNext（）在 E：\ JenkinsWorkspaces \ v3-trebuchet-release \ AWSDotNetPublic \ sdk \ src \ Core \ Amazon.Runtime \ Pipeline \ RetryHandler \ RetryHandler.cs：line 153 ---从上一个引发异常的位置开始的堆栈跟踪- System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务） Amazon.Runtime.Internal.CallbackHandler.d__9 1.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Amazon.Runtime.Internal.CallbackHandler.<InvokeAsync>d__9 1.MoveNext（） ---从上一个引发异常的位置开始的堆栈跟踪- System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务） Amazon.Runtime.Internal.ErrorCallbackHandler.d__5 1.MoveNext() in E:\JenkinsWorkspaces\v3-trebuchet-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\Handlers\ErrorCallbackHandler.cs:line 58 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Amazon.Runtime.Internal.MetricsHandler.<InvokeAsync>d__1 1.MoveNext（）}

但是发送：

“”

效果很好！

是否有任何工作环境只能发送

“”

Answer 1

您说您正在尝试将主体设置为""，但实际上是将主体设置为两个"之间的0字节空字符串。字符串文字实际上并不包含其周围的引号。如果您实际要发送的是空字符串，则在SQS中无效。

邮件正文不能为空或为空。

https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-message-attributes.html

但是，如果您实际上要发送两个字节的ASCII 0x22 "引号字符，则这些字符必须出现在字符串文字中，并且escaped。

var result = sqsClient.SendMessageAsync("queueURL", "\"\"").Result;

（请注意，SQS开发人员指南中的引用来自主要与消息属性相关的页面，但是它的确指向实际的消息正文，而不是消息属性，其内容称为{{1 }}，而不是“ body”，并分别提到，并且不支持空值或null。）

SQS不能仅在.Net Core中发送qutations消息

1 个答案: