using UnityEngine;using System.Collections;using System.Collections.Generic;using System.Xml;using System.IO;public class HTTPDemo : MonoBehaviour{    public string HostName = "http://www.webxml.com.cn";    //城市天气预报服务       public string URLPath = "/WebServices/WeatherWebService.asmx/getWeatherbyCityName";    //获得验证码服务（直接获得图片）      private string PictureName = "/WebServices/ValidateCodeWebService.asmx/cnValidateImage?byString=‘zhou‘";    //获得验证码服务（获得图片字节流）      private string PictureByteName = "/WebServices/ValidateCodeWebService.asmx/cnValidateByte?byString=‘zzj888‘";    private Texture2D mPicture;    private Texture2D mPictureByte;    private Texture2D mConvertPNG;    public string[] Parameters = new string[] { "theCityName"};    private string XMLContent = "null";    public string testC = "null";    void OnGUI()    {        //显示测试信息           GUI.Label(new Rect(100, 10, 1000, 38), testC);        //表单传值          if (GUI.Button(new Rect(10, 50, 100, 60), "post"))        {            postWeatherbyCityName("北京");        }        GUI.Button(new Rect(120, 80, 100 + getJindu() * 100, 20), (getJindu() * 100) + "%");        //get传值（android平台不支持中文参数）          if (GUI.Button(new Rect(10, 130, 100, 60), "get"))        {            getWeatherbyCityName("58367");//上海          }        GUI.Button(new Rect(120, 150, 100 + getJindu() * 100, 20), (getJindu() * 100) + "%");        //显示读取到的天气预报原始信息（xml格式）          GUI.Label(new Rect(10, 220, 380, 500), mContent);        //解析xml           if (GUI.Button(new Rect(500, 200, 120, 60), "AnalysisXML"))        {            XMLContent = AnalysisXML();        }        GUI.Label(new Rect(410, 220, 380, 500), XMLContent);        //下载网络图片           if (GUI.Button(new Rect(10, 150, 80, 60), "downPic"))        {            downloadPicture(PictureName);        }        GUI.Label(new Rect(100, 160, 200, 200), mPicture);        //下载网络图片 （base64格式）          if (GUI.Button(new Rect(350, 250, 80, 60), "downPicByte"))        {            downloadPictureByte(PictureByteName);        }        GUI.Label(new Rect(450, 260, 200, 200), mPictureByte);    }    public void postWeatherbyCityName(string str)    {        //将参数集合封装到Dictionary集合方便传值          Dictionary<string, string> dic = new Dictionary<string, string>();        //参数          dic.Add(Parameters[0], str);         StartCoroutine(POST(HostName + URLPath, dic));    }    public void getWeatherbyCityName(string str)    {        //将参数集合封装到Dictionary集合方便传值          Dictionary<string, string> dic = new Dictionary<string, string>();        //参数          dic.Add(Parameters[0], str);        StartCoroutine(GET(HostName + URLPath, dic));    }    //下载图片       public void downloadPicture(string picName)    {        testC = "picurl = " + picName;        StartCoroutine(GETTexture(HostName + picName));    }    //下载图片（字节流）      public void downloadPictureByte(string picName)    {        StartCoroutine(GETTextureByte(HostName + picName));    }    /*----------------------------------------------------Helper----------------------------------------------------------------------------*/    private float mJindu = 0;    private string mContent;    public float getJindu()    {        return mJindu;    }    //POST请求(Form表单传值、效率低、安全 ，)      IEnumerator POST(string url, Dictionary<string, string> post)    {        //表单           WWWForm form = new WWWForm();        //从集合中取出所有参数，设置表单参数（AddField()).          foreach (KeyValuePair<string, string> post_arg in post)        {            form.AddField(post_arg.Key, post_arg.Value);        }        //表单传值，就是post           WWW www = new WWW(url, form);        yield return www;        mJindu = www.progress;        if (www.error != null)        {            //POST请求失败              mContent = "error :" + www.error;        }        else        {            //POST请求成功              mContent = www.text;        }    }    //GET请求（url?传值、效率高、不安全 ）      IEnumerator GET(string url, Dictionary<string, string> get)    {        string Parameters;        bool first;        if (get.Count > 0)        {            first = true;            Parameters = "?";            //从集合中取出所有参数，设置表单参数（AddField()).              foreach (KeyValuePair<string, string> post_arg in get)            {                if (first)                    first = false;                else                    Parameters += "&";                Parameters += post_arg.Key + "=" + post_arg.Value;                Debug.Log(Parameters);            }        }        else        {            Parameters = "";        }        testC = "getURL :" + Parameters;        //直接URL传值就是get          WWW www = new WWW(url + Parameters);        yield return www;        mJindu = www.progress;        if (www.error != null)        {            //GET请求失败              mContent = "error :" + www.error;        }        else        {            //GET请求成功              mContent = www.text;        }    }    IEnumerator GETTexture(string picURL)    {        WWW wwwTexture = new WWW(picURL);        yield return wwwTexture;        if (wwwTexture.error != null)        {            //GET请求失败              Debug.Log("error :" + wwwTexture.error);        }        else        {            //GET请求成功              mPicture = wwwTexture.texture;        }    }    string PicByte;    IEnumerator GETTextureByte(string picURL)    {        WWW www = new WWW(picURL);        yield return www;        if (www.error != null)        {            //GET请求失败              Debug.Log("error :" + www.error);        }        else        {            //GET请求成功              Debug.Log("PicBytes text = " + www.text);            XmlDocument xmlDoc = new XmlDocument();            xmlDoc.Load(new StringReader(www.text));            //通过索引查找子节点               PicByte = xmlDoc.GetElementsByTagName("base64Binary").Item(0).InnerText;            testC = PicByte;            mPictureByte = BttetoPic(PicByte);        }    }    //解析XML       string AnalysisXML()    {        string str = "";        XmlDocument xmlDoc = new XmlDocument();        xmlDoc.Load(new StringReader(mContent));        //得到文档根节点的所有子节点集合           //XmlNodeList nodes = xmlDoc.DocumentElement.ChildNodes;          //通过节点名得到节点集合          XmlNodeList nodes = xmlDoc.GetElementsByTagName("string");        //通过索引查找子节点           str += "item[1] = " + xmlDoc.GetElementsByTagName("string").Item(1).InnerText + "\n\n";        //遍历所有子节点          foreach (XmlElement element in nodes)        {            if (element.Name == "string")            {                str += element.InnerText + "\n";            }        }        return str;    }    //图片与byte[]互转      public void convertPNG(Texture2D pic)    {        byte[] data =http://www.mamicode.com/ pic.EncodeToPNG();        Debug.Log("data = http://www.mamicode.com/" + data.Length + "|" + data[0]);        mConvertPNG = new Texture2D(200, 200);        mConvertPNG.LoadImage(data);    }    //byte[]与base64互转       Texture2D BttetoPic(string base64)    {        Texture2D pic = new Texture2D(200, 200);        //将base64转码为byte[]           byte[] data =http://www.mamicode.com/ System.Convert.FromBase64String(base64);        //加载byte[]图片          pic.LoadImage(data);        string base64str = System.Convert.ToBase64String(data);        Debug.Log("base64str = " + base64str);        return pic;    }}