WCF相关求调用参数输入有误的情况下的异常捕获

百合杰 2018-04-12 11:08:11

本人现在wcf的程序接口是restful形式输入输出格式为json格式

[WebInvoke(Method = "POST", UriTemplate = "vm_destroy", BodyStyle = WebMessageBodyStyle.WrappedRequest,  RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)]

VM_STARTSTOP VM_Destroy(VMTYPE vm_type,string user_name,string user_pwd,string vm_id);

正常调用参数比如

{

"vm_type":1,

"user_name":"xulei01",

"user_pwd":"123.com",

"vm_id":"f9de392e-5b0d-4fe4-ba2f-0ad804781fa8"

}

返回值是VM_STARTSTOP形式的例如

{

    "code": 40008,

    "msg": "VMID与账号或密码或VM类型不匹配",

    "success": false

}

但如果客户程序发给我的格式有误的情况下比如

{

"vm_type":1,

"user_name":"xulei01",

"user_pwd":"123.com",

"vm_id"://这边故意改成错的

}

wcf就自己捕获异常并返回了都没到我的代码层返回结果如下（返回：反序列化时引发异常的html）

<?xml version="1.0" encoding="utf-8"?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

    <head>

        <title>请求错误</title>

        <style>BODY { color: #000000; background-color: white; font-family: Verdana; margin-left: 0px; margin-top: 0px; } #content { margin-left: 30px; font-size: .70em; padding-bottom: 2em; } A:link { color: #336699; font-weight: bold; text-decoration: underline; } A:visited { color: #6699cc; font-weight: bold; text-decoration: underline; } A:active { color: #336699; font-weight: bold; text-decoration: underline; } .heading1 { background-color: #003366; border-bottom: #336699 6px solid; color: #ffffff; font-family: Tahoma; font-size: 26px; font-weight: normal;margin: 0em 0em 10px -20px; padding-bottom: 8px; padding-left: 30px;padding-top: 16px;} pre { font-size:small; background-color: #e5e5cc; padding: 5px; font-family: Courier New; margin-top: 0px; border: 1px #f0f0e0 solid; white-space: pre-wrap; white-space: -pre-wrap; word-wrap: break-word; } table { border-collapse: collapse; border-spacing: 0px; font-family: Verdana;} table th { border-right: 2px white solid; border-bottom: 2px white solid; font-weight: bold; background-color: #cecf9c;} table td { border-right: 2px white solid; border-bottom: 2px white solid; background-color: #e5e5cc;}</style>

    </head>

    <body>

        <div id="content">

            <p class="heading1">请求错误</p>

            <p>服务器处理请求时遇到错误。异常消息为“格式化程序尝试对消息反序列化时引发异常: 尝试对参数 http://tempuri.org/ 进行反序列化时出错: user_pwd。InnerException 消息是“反序列化对象 属于类型 System.String 时出现错误。遇到意外字符“}”。”。有关详细信息，请参见 InnerException。”。有关详细信息，请参见服务器日志。异常堆栈跟踪为: </p>

            <p>   在 System.ServiceModel.Dispatcher.DataContractJsonSerializerOperationFormatter.DeserializeParameterPart(XmlDictionaryReader reader, PartInfo part)

   在 System.ServiceModel.Dispatcher.DataContractJsonSerializerOperationFormatter.DeserializeParameters(XmlDictionaryReader reader, PartInfo[] parts, Object[] parameters, PartInfo returnInfo, Object& returnValue)

   在 System.ServiceModel.Dispatcher.DataContractJsonSerializerOperationFormatter.DeserializeBodyCore(XmlDictionaryReader reader, Object[] parameters, Boolean isRequest)

   在 System.ServiceModel.Dispatcher.DataContractJsonSerializerOperationFormatter.DeserializeBody(XmlDictionaryReader reader, MessageVersion version, String action, MessageDescription messageDescription, Object[] parameters, Boolean isRequest)

   在 System.ServiceModel.Dispatcher.OperationFormatter.DeserializeBodyContents(Message message, Object[] parameters, Boolean isRequest)

   在 System.ServiceModel.Dispatcher.OperationFormatter.DeserializeRequest(Message message, Object[] parameters)

   在 System.ServiceModel.Dispatcher.DemultiplexingDispatchMessageFormatter.DeserializeRequest(Message message, Object[] parameters)

   在 System.ServiceModel.Dispatcher.UriTemplateDispatchFormatter.DeserializeRequest(Message message, Object[] parameters)

   在 System.ServiceModel.Dispatcher.DispatchOperationRuntime.DeserializeInputs(MessageRpc& rpc)

   在 System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)

   在 System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)

   在 System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc)

   在 System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)</p>

        </div>

    </body>

</html>