问题：因Silverlight客户端不能直接调用webservice接口（外网天气接口），调用会出现跨域访问的问题，即使添加了跨域文件也不好使。解决方法如下
解决方法一：1.在服务端建立一个wcf服务端，在wcf里调用webservice接口（外网天气接口）
wcf服务接口IWeatherService.cs
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Runtime.Serialization;
5 using System.ServiceModel;
6 using System.Text;
7
8 namespace WcfServiceWeather
9 {
10 // 注意: 使用“重构”菜单上的“重命名”命令，可以同时更改代码和配置文件中的接口名“IWeatherService”。
11 [ServiceContract]
12 public interface IWeatherService
13 {
14 [OperationContract]
15 string[] GetCityWeather(string CityName);
16 }
17 }
wcf服务实现类WeatherService.cs
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Runtime.Serialization;
5 using System.ServiceModel;
6 using System.Text;
7
8 namespace WcfServiceWeather
9 {
10 // 注意: 使用“重构”菜单上的“重命名”命令，可以同时更改代码、svc 和配置文件中的类名“WeatherService”。
11 // 注意: 为了启动 WCF 测试客户端以测试此服务，请在解决方案资源管理器中选择 WeatherService.svc 或 WeatherService.svc.cs，然后开始调试。
12 public class WeatherService : IWeatherService
13 {
14 public string[] GetCityWeather(string CityName)
15 {
16 ServiceRefWeather.WeatherWebServiceSoapClient client = new ServiceRefWeather.WeatherWebServiceSoapClient("WeatherWebServiceSoap");
17 string[] cityNameWeather = client.getWeatherbyCityName(CityName);
18 return cityNameWeather;
19 }
20 }
21 }
添加完成后预览服务，将会在配置文件中自动生成相应的配置system.serviceModel
1 <?xml version="1.0" encoding="utf-8"?> 2 <configuration> 3 4 <appSettings> 5 <add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" /> 6 </appSettings> 7 <system.web> 8 <compilation debug="true" targetFramework="4.5" /> 9 <httpRuntime targetFramework="4.5"/> 10 </system.web> 11 <system.serviceModel> 12 <bindings> 13 <basicHttpBinding> 14 <binding name="WeatherWebServiceSoap" /> 15 </basicHttpBinding> 16 <customBinding> 17 <binding name="WeatherWebServiceSoap12"> 18 <textMessageEncoding messageVersion="Soap12" /> 19 <httpTransport /> 20 </binding> 21 </customBinding> 22 </bindings> 23 <client> 24 <endpoint address="http://www.webxml.com.cn/WebServices/WeatherWebService.asmx" 25 binding="basicHttpBinding" bindingConfiguration="WeatherWebServiceSoap" 26 contract="ServiceRefWeather.WeatherWebServiceSoap" name="WeatherWebServiceSoap" /> 27 <endpoint address="http://www.webxml.com.cn/WebServices/WeatherWebService.asmx" 28 binding="customBinding" bindingConfiguration="WeatherWebServiceSoap12" 29 contract="ServiceRefWeather.WeatherWebServiceSoap" name="WeatherWebServiceSoap12" /> 30 </client> 31 <behaviors> 32 <serviceBehaviors> 33 <behavior> 34 <!-- 为避免泄漏元数据信息，请在部署前将以下值设置为 false --> 35 <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/> 36 <!-- 要接收故障异常详细信息以进行调试，请将以下值设置为 true。在部署前设置为 false 以避免泄漏异常信息 --> 37 <serviceDebug includeExceptionDetailInFaults="false"/> 38 </behavior> 39 </serviceBehaviors> 40 </behaviors> 41 <protocolMapping> 42 <add binding="basicHttpsBinding" scheme="https" /> 43 </protocolMapping> 44 <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" /> 45 </system.serviceModel> 46 <system.webServer> 47 <modules runAllManagedModulesForAllRequests="true"/> 48 <!-- 49 若要在调试过程中浏览 Web 应用程序根目录，请将下面的值设置为 True。 50 在部署之前将该值设置为 False 可避免泄露 Web 应用程序文件夹信息。 51 --> 52 <directoryBrowse enabled="true"/> 53 </system.webServer> 54 55 </configuration>
2.Silverlight客户端添加服务引用（此处添加的是wcf的服务引用）
1 ServiceReference1.WeatherServiceClient client = new ServiceReference1.WeatherServiceClient();
2 client.GetCityWeatherCompleted += (s, e) =>
3 {
4 try
5 {
6 if (e.Error == null)
7 {
8 var result=e.Result;//此处处理结果就ok了
9 }
10 catch (Exception ex)
11 {
12 lbltitle1.Content = ex.Message;
13 }
14
15 };
16 client.GetCityWeatherAsync("北京");
3.添加跨域文件clientaccesspolicy.xml
1 <?xml version="1.0" encoding="utf-8" ?> 2 <access-policy> 3 <cross-domain-access> 4 <policy> 5 <allow-from http-request-headers="*"> 6 <domain uri="*"/> 7 </allow-from> 8 <grant-to> 9 <resource include-subpaths="true" path="/"/> 10 </grant-to> 11 </policy> 12 </cross-domain-access> 13 </access-policy>
crossdomain.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE cross-domain-policy SYSTEM "http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd" > 3 <cross-domain-policy> 4 <site-control permitted-cross-domain-policies="all" /> 5 <allow-access-from domain="*" /> 6 <allow-http-request-headers-from domain="*" headers="*"/> 7 </cross-domain-policy>
解决方法二：直接在Silverlight的web中添加wcf无法文件、添加（外网天气服务接口）处理天气接口，然后在客户端直接调用自己创建的wcf，此时客户端会产生一个ServiceReferences.ClientConfig的文件
1 <configuration> 2 <system.serviceModel> 3 <bindings> 4 <basicHttpBinding> 5 <binding name="BasicHttpBinding_IWeatherService" maxBufferSize="2147483647" 6 maxReceivedMessageSize="2147483647"> 7 <security mode="None" /> 8 </binding> 9 </basicHttpBinding> 10 </bindings> 11 <client> 12 <endpoint address="http://192.168.0.161:8080/bjsw/WCF/WeatherService.svc" 13 binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IWeatherService" 14 contract="ServiceReference1.IWeatherService" name="BasicHttpBinding_IWeatherService" /> 15 </client> 16 </system.serviceModel> 17 </configuration>
在客户端直接调用就ok了
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时间： 2024-07-31 08:02:45