android 连接 wcf rest注意点
Posted liangouyang
tags:
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1.datacontract 的元素要有默认值,null 值序列化为json时会有问题,异常并不会在调试中跳出,只是tcp tracer中不会response信息,然后
android 客户端报System.EOF错误,或者IOException:java.net.SocketException: recvfrom failed: ECONNRESET (Connection reset by peer)
[DataContract]
public class UserData
{
private long userId = (long)0;
private string username = string.Empty;
private string nickName = string.Empty;
private string sex = string.Empty;
private string icon = string.Empty;
private string mobilePhone = string.Empty;
private DateTime registerDate = DateTime.Now;
private string customId = string.Empty;
private string flag = string.Empty;
private string errorInfo = string.Empty;
[DataMember]
public long UserId
{
get
{
return userId;
}
set
{
userId = value;
}
}
[DataMember]
public string UserName
{
get
{
return username;
}
set
{
username = value;
}
}
[DataMember]
public string NickName
{
get
{
return nickName;
}
set
{
nickName = value;
}
}
[DataMember]
public string Sex
{
get
{
return sex;
}
set
{
sex = value;
}
}
[DataMember]
public string Icon
{
get
{
return icon;
}
set
{
icon = value;
}
}
[DataMember]
public string MobilePhone
{
get
{
return mobilePhone;
}
set
{
mobilePhone = value;
}
}
[DataMember]
public DateTime RegisterDate
{
get
{
return registerDate;
}
set
{
registerDate = value;
}
}
[DataMember]
public string CustomId
{
get
{
return customId;
}
set
{
customId = value;
}
}
[DataMember]
public string Flag
{
get
{
return flag;
}
set
{
flag = value;
}
}
[DataMember]
public string ErrorInfo
{
get
{
return errorInfo;
}
set
{
errorInfo = value;
}
}
}
2.把wcf 的异常输出到指定文件中
<?xml version="1.0" encoding="utf-8"?> <configuration> <system.serviceModel> <serviceHostingEnvironment aspNetCompatibilityEnabled="true"/> <behaviors> <serviceBehaviors> <behavior name="webHttpServiceBehavior"> <serviceMetadata httpGetEnabled="true" httpGetUrl="metadata"/> <serviceDebug includeExceptionDetailInFaults="true"/> <dataContractSerializer maxItemsInObjectGraph="2147483647"/> </behavior> </serviceBehaviors> <endpointBehaviors> <behavior name="webHttpendpointBehavior"> <webHttp helpEnabled="true"/> </behavior> </endpointBehaviors> </behaviors> <bindings> <webHttpBinding> <binding crossDomainScriptAccessEnabled="true" name="webHttpBinding" maxBufferSize="2147483647" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"> <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647"/> </binding> </webHttpBinding> </bindings> <services> <service name="ChatWithLocationServiceLib.services.LoginService" behaviorConfiguration="webHttpServiceBehavior"> <endpoint address="Http://192.168.0.175:3721/LoginService" binding="webHttpBinding" behaviorConfiguration="webHttpendpointBehavior" contract="ChatWithLocationServiceLib.interfaces.ILoginService"/> </service> </services> </system.serviceModel> <system.webServer> <modules runAllManagedModulesForAllRequests="true"/> </system.webServer> <!--保存具体的错误信息到svclog文件中--> <system.diagnostics> <sources> <source name="System.ServiceModel" switchValue="Warning" propagateActivity="true"> <listeners> <add name="xml" /> </listeners> </source> </sources> <sharedListeners> <add name="xml" type="System.Diagnostics.XmlWriterTraceListener" initializeData="F:\\wcf.svclog" /> </sharedListeners> </system.diagnostics> </configuration>
3.声明服务接口
[ServiceContract]
public interface ILoginService
{
[OperationContract(Name = "Login")]
[WebInvoke(Method = "GET",
RequestFormat = WebMessageFormat.Json,
ResponseFormat = WebMessageFormat.Json,
BodyStyle = WebMessageBodyStyle.Bare,
UriTemplate = "Login/{GID}/{PWD}")]
UserData Login(string GID, string PWD);
[OperationContract(Name = "RegistLogin")]
[WebInvoke(Method = "POST",
RequestFormat = WebMessageFormat.Json,
ResponseFormat = WebMessageFormat.Json,
BodyStyle = WebMessageBodyStyle.Bare,
UriTemplate = "RegistLogin")]
UserData RegistLogin(UserData baseInfo);
}
4.实现服务接口
[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall)]
public class LoginService : ILoginService
{
public UserData Login(string GID, string PWD)
{
Console.WriteLine("GID" + GID + ";PWD:" + PWD);
UserData data = new UserData();
data.UserId = 44;
data.UserName = "erer";
data.ErrorInfo = "username fail";
return data;
}
public UserData RegistLogin(UserData baseInfo)
{
UserData data = new UserData();
data.UserId = 0;
data.UserName = baseInfo.UserName;
return data;
}
}
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