一、Web Service端的设计
先从SoapHeader继承一个自定义类CredentialSoapHeader，该类包含用户名和密码：
public
?
class
?CredentialSoapHeader?:?SoapHeader
{
????public?string?Username
????
{
????????get?
{?
?}
????????set?
{?
?}
????}
????public?string?Password
????
{
????????get?
{?
?}
????????set?
{?
?}
????}
}
在WebService类里面创建一个属性Credentials，类型为CredentialSoapHeader：
public
?
class
?IssueVisionServices?:?WebService
{
????//?custom?SOAP?header?to?pass?credentials
????public?CredentialSoapHeader?Credentials
????
{
????????get?
{?
?}
????????set?
{?
?}
????}
????
}
在WebMethod的方法上使用SoapHeader标识，成员名称为"Credentials"：
[WebMethod(Description
=
"
Returns?the?lookup?tables?for?IssueVision.
"
)]
[SoapHeader(
"
Credentials
"
)]
public
?IVDataSet?GetLookupTables()
{
????SecurityHelper.VerifyCredentials(this);
????return?new?IVData().GetLookupTables();
}
?
public
?
class
?SecurityHelper?
{
????
//
?verifies?the?clients?credentials
????
public
?
static
?
void
?VerifyCredentials(IssueVisionServices?service)?
????{
????????String?userName?
=
?service.Credentials.Username;
????????String?password?
=
?service.Credentials.Password;
????????
//
?按照userName?和?password?进行授权验证
????????
????}
}
二、客户端对Web Service的调用
private
?
static
?IssueVisionServices?GetWebServiceReference()
{
????return?GetWebServiceReference(UserSettings.Instance.Username,?UserSettings.Instance.Password);
}
private
?
static
?IssueVisionServices?GetWebServiceReference(
string
?username,?
string
?password)
{
????IssueVisionServices?dataService?=?new?IssueVisionServices();
????????
????//<ReplaceWithWse>
????CredentialSoapHeader?header?=?new?CredentialSoapHeader();
????header.Username?=?username;
????header.Password?=?password;
????dataService.CredentialSoapHeaderValue?=?header;
????//</ReplaceWithWse>
????????????
????InitWebServiceProxy(dataService);
????????????
????return?dataService;
}
