vb.net put Content-Type: application/json;charset=UTF-8

我理解您的问题是关于在vb.net中设置请求头的Content-Type为application/json;charset=UTF-8。您可以使用以下代码：

Dim request As HttpWebRequest = DirectCast(WebRequest.Create("Your API URL"), HttpWebRequest)
request.Method = "POST"
request.ContentType = "application/json;charset=UTF-8"

在这个例子中，我们创建了一个名为request的HttpWebRequest对象，设置了请求方法为POST，并设置了Content-Type为application/json;charset=UTF-8。这将确保您的请求以JSON格式进行编码，同时指定编码为UTF-8。

希望这可以回答您的问题！

相关问题

vb.net 实现如下请求，应该怎么写？ POST /RTService/service.asmx HTTP/1.1 Host: 10.168.1.137 Content-Type: text/xml; charset=utf-8 Content-Length: length SOAPAction: "http://tempuri.org/SpcCheck" <?xml version="1.0" encoding="utf-8"?> <soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"> <soap:Body> <SpcCheck xmlns="http://tempuri.org/"> <dcs> <DataCollection> <BatchIDs>string</BatchIDs> <WaferIDs>string</WaferIDs></DataCollection> </dcs> </SpcCheck> </soap:Body> </soap:Envelope>

你可以使用VB.Net中的HttpWebRequest和HttpWebResponse类来实现该请求。具体实现过程如下：

Dim request As HttpWebRequest = CType(WebRequest.Create("http://10.168.1.137/RTService/service.asmx"), HttpWebRequest)
request.Method = "POST"
request.ContentType = "text/xml; charset=utf-8"
request.Headers.Add("SOAPAction", "http://tempuri.org/SpcCheck")

Dim xml As String = "<?xml version=""1.0"" encoding=""utf-8""?>" & _
        "<soap:Envelope xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"" " & _
        "xmlns:xsd=""http://www.w3.org/2001/XMLSchema"" " & _
        "xmlns:soap=""http://schemas.xmlsoap.org/soap/envelope/"">" & _
        "<soap:Body>" & _
        "<SpcCheck xmlns=""http://tempuri.org/"">" & _
        "<dcs>" & _
        "<DataCollection>" & _
        "<BatchIDs>string</BatchIDs>" & _
        "<WaferIDs>string</WaferIDs>" & _
        "</DataCollection>" & _
        "</dcs>" & _
        "</SpcCheck>" & _
        "</soap:Body>" & _
        "</soap:Envelope>"

Dim data As Byte() = Encoding.UTF8.GetBytes(xml)
request.ContentLength = data.Length

Using stream As Stream = request.GetRequestStream()
    stream.Write(data, 0, data.Length)
End Using

Dim response As HttpWebResponse = CType(request.GetResponse(), HttpWebResponse)
Dim reader As StreamReader = New StreamReader(response.GetResponseStream())
Dim result As String = reader.ReadToEnd()

Console.WriteLine(result)

这段代码发送了一个POST请求，将请求体设置为xml变量中的内容，然后从响应流中读取响应并输出。你需要将`10.168.1.137`替换为实际的IP地址，以及将`string`替换为实际的数据。

VB.net 如何调用接口地址：http://172.16.10.12:8080/MES/services/HjEqpWebService?wsdl

在 VB.net 中调用接口需要使用 WebService 客户端。以下是调用该接口的步骤：

1. 在项目中添加 Web 引用（右键项目 -> 添加 -> 引用 -> Web -> 输入接口地址 -> 确定）。

2. 在代码中创建 WebService 客户端对象：

Dim client As New HjEqpWebService.HjEqpWebServiceClient()

其中，HjEqpWebService 是 Web 引用的名称，HjEqpWebServiceClient 是自动生成的客户端对象。

3. 调用接口方法，例如：

Dim result As String = client.getEquipmentState("equipmentId")

其中，getEquipmentState 是接口方法名，"equipmentId" 是方法参数。

完整代码示例：

Dim client As New HjEqpWebService.HjEqpWebServiceClient()
Dim result As String = client.getEquipmentState("equipmentId")
MessageBox.Show(result)