[WEBSERVICE]天气预报

.net使用WebService获取天气预报时间:2010-04-08 11:46:45来源:网络 做者:未知 点击:633次

(1)新建个网站，将其命名为WeatherService

(2)右键程序根目录，添加Web引用，在服务地址填入：http://www.ayandy.com/Service.asmx ,

在Web引用名输入obj ,而后添加引用。

（3）在Default.aspx页面中写入：

<div>
省份：<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
</asp:DropDownList>城市：<asp:DropDownList ID="DropDownList2" runat="server">
</asp:DropDownList>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="获 取" />
</div>
<div style ="border :solid 1px #8daaf4;margin-top :5px;">
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label><br />
<asp:Label ID="Label2" runat="server" Text="Label"></asp:Label><br />
<asp:Label ID="Label3" runat="server" Text="Label"></asp:Label><br />
<asp:Label ID="Label4" runat="server" Text="Label"></asp:Label><br />
<asp:Label ID="Label5" runat="server" Text="Label"></asp:Label><br />
<asp:Image ID="Image1" runat="server" />

</div>

（4）在后置代码中写入：

using System.Web.Services;
using obj; //引用

obj.Service myobj = new obj.Service(); //实例化

protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
BindPro();
BindCity();
BindWeather();
}
}

// 得到省份
protected void BindPro()
{
string[] pro = myobj.getSupportProvince();
for (int i = 1; i <= Int32.Parse(pro[0]); i++)
{
DropDownList1.Items.Add(new ListItem(pro[i].ToString(), pro[i].ToString()));
}
}
//得到城市
protected void BindCity()
{
DropDownList2.Items.Clear();
string[] city = myobj.getSupportCity(DropDownList1.SelectedValue);
for (int i = 1; i <= Int32.Parse(city[0]); i++)
{
DropDownList2.Items.Add(new ListItem(city[i].ToString(), city[i].ToString()));
}
}
//天气预报
protected void BindWeather()
{
string[] mystr = myobj.getWeatherbyCityName(DropDownList2.SelectedValue, theDayFlagEnum.Today);
Label1.Text = mystr[1].ToString();
Label2.Text = mystr[2].ToString();
Label3.Text = mystr[3].ToString();
string fengxaing = mystr[4];
Label4.Text = Convert.ToString(fengxaing);

Label5.Text = mystr[5].ToString();
Image1.ImageUrl = mystr[6].ToString();
}
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
BindCity();
}
protected void Button1_Click(object sender, EventArgs e)
{
BindWeather();
}

（5）web.config中写入：

<appSettings>
<add key="obj.Service" value="<A href="http://www.ayandy.com/Service.asmx"/">http://www.ayandy.com/Service.asmx"/>
</appSettings>

本篇文章来源于：开发学院 http://edu.codepub.com 原文连接：http://edu.codepub.com/2010/0408/21773.php

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