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The background needs to support transmitting and receiving data through j son.

First of all, talk about the construction process.

Step by step: to create a WCF service service, you should apply the program item item WCF.

The second step is to create a service building service to make sure that the number of data used is classified.

Using System

Using System.ComponentModel.DataAnnotations

Using System.ComponentModel.DataAnnotations.Schema

Using System.Runtime.Serialization

Namespace WCF

{

[DataContract

[Table ("TUser")

Public class Person

{

[DataMember

Public int ID {get; set;}

[DataMember

[StringLength (100)

Public string LoginName {get; set;}

[DataMember

[StringLength (100)

Public string Password {get; set;}

[DataMember

[DataType (DataType.Date)

Public DateTime CreateDate {get; set;}

}

}

Here, because I use EF to interact with the database, I use Table, StringLength, and DataType. If you don't use EF, you don't have to add these. DataContr

At is used to mark that the current class needs to refer to the DataMember attribute when serializing. If you do not set DataContra t or only set DataMember, then all the common attributes and words

All segments are serialized, otherwise, only serialization with DataMember is set. Note that DataContra t and DataMember have nothing to do with deserialization, that is, when setting the

When a j son object string is passed to the WCF service, it is deserialized regardless of whether there is a DataMember on the field.

The third and third step: create the service contract contract interface

If your service is only used to provide access to some non-WCF clients such as Aj ax, then there is no need for an interface. Add various A ttribute in the interface definition to the service directly.

The definition of the class provided is fine. But in order to make the program accessible through the service interface, you must use the interface, such as the architecture of the front-end MVC+ background WCF

Style.

Using System.Collections.Generic

Using System.ServiceModel

Using System.ServiceModel.Web

Namespace WCF

{

[ServiceContract

Public interface IPersonService

{

[OperationContract

[WebInvoke (Method = "POST", RequestFormat = WebMessageFormat.Json, ResponseFormat =

WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.WrappedRequest)

Person CreatePerson (string loginName, string password)

/ / Service function 2

[OperationContract

[WebGet (RequestFormat = WebMessage)

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