简单问题。网站接口我怎么调用？

一般是斗webservice 或者api 吧，给你返回结果，你直接显示就可以了

这个就是网站给的api吧我就是想要将这个先弄到我的电脑里，然后将数据拿出来做个小的看天气的应用。
能够稍微写清楚点吗？是调用webservice这个类的意思？

webclient直接downstring，返回的是json串，找个解析json的类去处理，下载一个 Newtonsoft.Json.dll

string reply = client.DownloadString (address);这边的address必须是IP地址吗？

http://119.75.220.12这种ip也不行。。我只要能够显示网页上的数据到我的电脑里我就能处理了。只是我弄不下来。

MSDN上说的
参数
address
包含要下载的 URI 的 String。
如果 BaseAddress 属性不是空字符串 ("")，且 address 不包含绝对 URI，则 address 必须是相对 URI，此 URI 与 BaseAddress 组合在一起构成所请求数据的绝对 URI。如果 QueryString 属性不是空字符串，则将它追加到 address。
我这个 string result=web.DownloadString(http://m.weather.com.cn/data/101010100.html);就是绝对URI但是C#说我现在是http://这个：是无效的

用httpwebrequest获取源码，然后json解析结果就ok了

//天气信息来自中国天气网！
//很早以前写过一段//**************************************************** protected void Page_Load(object sender, EventArgs e)
    {        string str = GetResponseStr();//获得json天气信息
        //对json格式的信息重新整理一下，因为我们要用.net自带的方法获得相关信息
        str = str.Remove(str.LastIndexOf("}"), 1);
        str = str.Remove(0, 15);        //使用JavaScriptSerializer对象来解析数据
        JavaScriptSerializer serializer = new JavaScriptSerializer();
        Dictionary<string, object> json = (Dictionary<string, object>)serializer.DeserializeObject(str);        object str_city;        //-- 城市 -- city
        object str_weather;     //-- 天气 -- weather1
        object str_img_id;      //-- 天气图标编号 -- img1
        object str_temp;        //-- 温度 -- temp1
        object str_fl;          //-- 风力 --fl1
        object str_UV;          //-- 紫外线 -- index_uv
        object str_cy;          //-- 穿衣指数 -- index
        object str_xc;          //-- 洗车指数 -- index_xc
        object str_CO;          //-- 舒适指数 -- index_co
        object str_Time;        //-- 时间 -- date_y
        object str_week;        //-- 星期 -- week        if (json.TryGetValue("city", out str_city))
        {
            Response.Write (str_city.ToString());//城市
        }
        if (json.TryGetValue("weather1", out str_weather))
        {
            //Response.Write(str_weather.ToString());//天气
            lab_Tianqi.Text = str_weather.ToString();
        }
        if (json.TryGetValue("temp1", out str_temp))
        {
            //Response.Write(str_temp.ToString());//温度
            lab_wendu.Text = str_temp.ToString();
        }
        if (json.TryGetValue("fl1", out str_fl))
        {
            //Response.Write(str_fl.ToString());//风力
            lab_Fengli.Text = str_fl.ToString();
        }
        if (json.TryGetValue("index_uv", out str_UV))
        {
            //Response.Write(str_UV.ToString());//紫外线
            lab_UV.Text = str_UV.ToString();
        }
        //if (json.TryGetValue("index", out str_cy))
        //{
        //    Response.Write(str_cy.ToString());//穿衣
        //}
        if (json.TryGetValue("index_xc", out str_xc))
        {
            //Response.Write(str_xc.ToString());//洗车
            lab_Xc.Text = str_xc.ToString();
        }
        if (json.TryGetValue("index_co", out str_CO))
        {
            //Response.Write(str_CO.ToString());//舒适
            lab_Co.Text = str_CO.ToString();
        }        if (json.TryGetValue("date_y", out str_Time))
        {
           // Response.Write(str_Time.ToString());//时间
            lab_Time.Text = str_Time.ToString();
        }
        if (json.TryGetValue("week", out str_week))
        {
            //Response.Write(str_week.ToString());//星期
            lab_Week.Text = str_week.ToString();
        }        if (json.TryGetValue("img1", out str_img_id))
        {
            //Response.Write(str_img_id.ToString());//图片编号
            img.Src = "http://m.weather.com.cn/img/b" + str_img_id + ".gif";
            img.Width = 50;
            img.Height = 50;
        }    }    /// <summary>
    /// 获得天气的信息（json格式）
    /// </summary>
    /// <returns></returns>
    private string GetResponseStr()
    {
        string str = "http://m.weather.com.cn/data/101010100.html";
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(str);
        HttpWebResponse response = (HttpWebResponse)request.GetResponse();
        Stream stream = response.GetResponseStream();//获得回应的数据流
        //将数据流转成 String
        string result = new StreamReader(stream, System.Text.Encoding.UTF8).ReadToEnd();
        return result;
    }

HttpWebRequest web1=new HttpWebRequest();
string ing=web1.GetLifetimeService(http://m.weather.com.cn/data/101010100.html);是调用这个方法吗?还是说：不对啊。能给一行代码不。

谢谢，好全。
我用下面这个代码出现了乱码：
string result=web.DownloadString(address);
Console.WriteLine(result);
乱码如下：
{"weatherinfo":{"city":"鍖椾含","city_en":"beijing","date_y":"2013骞?鏈?9鏃?,"date":"","week":"鏄熸湡涓?,"fchh":"08","cityid":"101010100","temp1":"34鈩儈22鈩?,"temp2":"32鈩儈22鈩?,"temp3":"30鈩儈21鈩?,"temp4":"26鈩儈20鈩?,"temp5":"28鈩儈21鈩?,"temp6":"30鈩儈22鈩?,"tempF1":"93.2鈩墌71.6鈩?,"tempF2":"89.6鈩墌71.6鈩?,"tempF3":"86鈩墌69.8鈩?,"tempF4":"78.8鈩墌68鈩?,"tempF5":"82.4鈩墌69.8鈩?,"tempF6":"86鈩墌71.6鈩?,"weather1":"鏅?,"weather2":"澶氫簯","weather3":"澶氫簯杞槾","weather4":"闆烽樀闆ㄨ浆鏅?,"weather5":"鏅磋浆澶氫簯","weather6":"澶氫簯杞槾","img1":"0","img2":"99","img3":"1","img4":"99","img5":"1","img6":"2","img7":"4","img8":"0","img9":"0","img10":"1","img11":"1","img12":"2","img_single":"0","img_title1":"鏅?,"img_title2":"鏅?,"img_title3":"澶氫簯","img_title4":"澶氫簯","img_title5":"澶氫簯","img_title6":"闃?,"img_title7":"闆烽樀闆?,"img_title8":"鏅?,"img_title9":"鏅?,"img_title10":"澶氫簯","img_title11":"澶氫簯","img_title12":"闃?,"img_title_single":"鏅?,"wind1":"寰","wind2":"寰","wind3":"寰","wind4":"寰","wind5":"寰","wind6":"寰","fx1":"寰","fx2":"寰","fl1":"灏忎簬3绾?,"fl2":"灏忎簬3绾?,"fl3":"灏忎簬3绾?,"fl4":"灏忎簬3绾?,"fl5":"灏忎簬3绾?,"fl6":"灏忎簬3绾?,"index":"鐐庣儹","index_d":"澶╂皵鐐庣儹锛屽缓璁潃鐭～銆佺煭瑁欍€佺煭瑁ゃ€佽杽鍨婽鎭よ～绛夋竻鍑夊瀛ｆ湇瑁呫€?,"index48":"鐐庣儹","index48_d":"澶╂皵鐐庣儹锛屽缓璁潃鐭～銆佺煭瑁欍€佺煭瑁ゃ€佽杽鍨婽鎭よ～绛夋竻鍑夊瀛ｆ湇瑁呫€?,"index_uv":"寰堝己","index48_uv":"涓瓑","index_xc":"閫傚疁","index_tr":"杈冮€傚疁","index_co":"寰堜笉鑸掗€?,"st1":"34","st2":"23","st3":"32","st4":"22","st5":"30","st6":"20","index_cl":"閫傚疁","index_ls":"鏋侀€傚疁","index_ag":"涓嶆槗鍙?}}
这个乱码有什么方法让他不是乱码吗

public static string GetUrltoHtml(string Url,string type)
        {
            try
            {
                System.Net.WebRequest wReq = System.Net.WebRequest.Create(Url);
                // Get the response instance.
                System.Net.WebResponse wResp = wReq.GetResponse();
                System.IO.Stream respStream = wResp.GetResponseStream();
                // Dim reader As StreamReader = New StreamReader(respStream)
                using (System.IO.StreamReader reader = new System.IO.StreamReader(respStream, Encoding.GetEncoding(type)))
                {
                    return reader.ReadToEnd();
                }
            }
            catch (System.Exception ex)
            {
                //errorMsg = ex.Message;
            }
            return "";
        }

调试易

简单问题。网站接口我怎么调用？

解决方案 »