[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 作者: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,然后添加引用。

（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();
??????? }
??? }

??? // 获得省份
??? 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()));
??????? }
??? }
??? //获得城市
??? 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?? 原文链接：http://edu.codepub.com/2010/0408/21773.php