c#讀取天氣預報的web server

奔跑360 2014-07-11

展開全文

http://www./WebServices/WeatherWebService.asmx

里面有天氣的圖標。

添加WebServiceHelper.cs

[c-sharp] view plain copy

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Configuration;
using System.CodeDom;
using System.CodeDom.Compiler;
using System.Net;
using System.Web.Services;
using System.Web.Services.Description;
using Microsoft.CSharp;
namespace ZJPortGisLib
{
public static class WebServiceHelper
{
/// <summary>
/// 動態(tài)調(diào)用WebService
/// </summary>
/// <param name="url">WebService地址</param>
/// <param name="methodname">方法名(模塊名)</param>
/// <param name="args">參數(shù)列表</param>
/// <returns>object</returns>
public static object InvokeWebService(string url, string methodname, object[] args)
{
return InvokeWebService(url, null, methodname, args);
}
/// <summary>
/// 動態(tài)調(diào)用WebService
/// </summary>
/// <param name="url">WebService地址</param>
/// <param name="classname">類名</param>
/// <param name="methodname">方法名(模塊名)</param>
/// <param name="args">參數(shù)列表</param>
/// <returns>object</returns>
public static object InvokeWebService(string url, string classname, string methodname, object[] args)
{
string @namespace = "ServiceBase.WebService.DynamicWebLoad";
if (classname == null || classname == "")
{
classname = WebServiceHelper.GetClassName(url);
}
//獲取服務描述語言(WSDL)
WebClient wc = new WebClient();
Stream stream = wc.OpenRead(url + "?WSDL");
ServiceDescription sd = ServiceDescription.Read(stream);
ServiceDescriptionImporter sdi = new ServiceDescriptionImporter();
sdi.AddServiceDescription(sd, "", "");
CodeNamespace cn = new CodeNamespace(@namespace);
//生成客戶端代理類代碼
CodeCompileUnit ccu = new CodeCompileUnit();
ccu.Namespaces.Add(cn);
sdi.Import(cn, ccu);
CSharpCodeProvider csc = new CSharpCodeProvider();
ICodeCompiler icc = csc.CreateCompiler();
//設定編譯器的參數(shù)
CompilerParameters cplist = new CompilerParameters();
cplist.GenerateExecutable = false;
cplist.GenerateInMemory = true;
cplist.ReferencedAssemblies.Add("System.dll");
cplist.ReferencedAssemblies.Add("System.XML.dll");
cplist.ReferencedAssemblies.Add("System.Web.Services.dll");
cplist.ReferencedAssemblies.Add("System.Data.dll");
//編譯代理類
CompilerResults cr = icc.CompileAssemblyFromDom(cplist, ccu);
if (true == cr.Errors.HasErrors)
{
System.Text.StringBuilder sb = new StringBuilder();
foreach (CompilerError ce in cr.Errors)
{
sb.Append(ce.ToString());
sb.Append(System.Environment.NewLine);
}
throw new Exception(sb.ToString());
}
//生成代理實例,并調(diào)用方法
System.Reflection.Assembly assembly = cr.CompiledAssembly;
Type t = assembly.GetType(@namespace + "." + classname, true, true);
object obj = Activator.CreateInstance(t);
System.Reflection.MethodInfo mi = t.GetMethod(methodname);
return mi.Invoke(obj, args);
}
private static string GetClassName(string url)
{
string[] parts = url.Split('/');
string[] pps = parts[parts.Length - 1].Split('.');
return pps[0];
}
}
}

調(diào)用

[c-sharp] view plain copy

//天氣初始化
private void WeatherLoad()
{
string url = "http://www./WebServices/WeatherWebService.asmx";
string[] arg = new string [1];
arg[0] = "杭州";
try
{
object weather = ZJPortGisLib.WebServiceHelper.InvokeWebService(url, "getWeatherbyCityName", arg);
string[] h = (string[])weather;
this.Literal1.Text = "<li><img src="Images/weather/a_" + h[9] + "" mce_src="Images/weather/a_" + h[9] + "" style='width:20px;height:20px;' /></li><li>" + Weather(h[6]) + "</li><li>" + WeatherTemp(h[5]) + "</li>";
}
catch (Exception ex)
{
}
}
//切分天氣文字
private string Weather(string wea)
{
string[] arr = wea.Split(' ');
if (arr.Length == 2)
{
return arr[1].ToString().Trim();
}
return "";
}
//切分溫度
private string WeatherTemp(string tem)
{
string[] arr = tem.Split('/');
if (arr.Length == 2)
{
return arr[0].ToString().Trim() + "-" + arr[1].ToString().Trim();
}
return "";
}