自己平时感觉好用的封装的常见方法-未完待续

写入创建txt文件

/// <summary>
    /// 生成文件
    /// </summary>
    /// <param name="content">文件内容</param>
    public void CreatePage(string content, string filename)
    {
        try
        {
            if (!System.IO.Directory.Exists(filename.Substring(0, filename.LastIndexOf(‘/‘))))
            {
                System.IO.Directory.CreateDirectory(filename.Substring(0, filename.LastIndexOf(‘/‘)));
            }
            FileStream fs = new FileStream(filename, FileMode.Create);
            StreamWriter sw = new StreamWriter(fs, System.Text.Encoding.GetEncoding("GB2312"));
            sw.WriteLine(content);
            sw.Flush();
            sw.Close();

            bool result =if (result == false)
            { //发送文件失败
                HttpContext.Current.Response.Write(filename + "发送失败");
            }

        }
        catch (Exception ex)
        {
            HttpContext.Current.Response.Write(filename + ex.ToString());
        }
    }

如果txt文件存在 写入文件

 /// <summary>
    /// 写入文件
    /// </summary>
    /// <param name="dizhi">写入地址</param>
    /// <param name="content">写入内容</param>
    public string WriteToFile(string dizhi, string content, bool isfugai)
    {
        string message = string.Empty;
        try
        {
            System.IO.FileInfo file = new System.IO.FileInfo(dizhi);
            //独占方式，因为文件只能由一个进程写入.
            System.IO.StreamWriter writer1 = null;
            writer1 = new System.IO.StreamWriter(file.FullName, isfugai);//文件不存在就创建
            writer1.WriteLine(content);
            writer1.Close();
        }
        catch
        {
            message = "已有人在同步数据请稍后同步";
        }
        return message;
    }

写入txt文件

   /// <summary>
    /// 获取微信令牌
    /// </summary>
    /// <returns></returns>
    public string Getjsapi_tiket(string token)
    {
        FileStream fs1 = new FileStream("d:/webwz/m/wxtest/jsapi_tiket.txt", FileMode.Open);
        StreamReader sr = new StreamReader(fs1, Encoding.GetEncoding("GBK"));
        string AccToken = sr.ReadToEnd();
        sr.Close();
        fs1.Close();
        getqianming at = JsonDeserialize<getqianming>(AccToken);
        if (DateTime.Now > Convert.ToDateTime(at.expires_in))
        {
            //当前时间大于过期时间就重新获取jsapi_tiket令牌
            //获取到微信返回的json数据
            string ticket = GetPage("https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token="+token+"&type=jsapi");
            getqianming jstiket = JsonDeserialize<getqianming>(ticket);
            string jstik = jstiket.ticket;
            //将返回的数据写入到文件内
            //{"errcode":0,"errmsg":"ok","ticket":"bxLdikRXVbTPdHSM05e5u6THi9cRoPFeaORrzm-Klx3NMKJVnp0u-oa3DL920A6AsEBxM2DZTRCAkXlS5yoIkg","expires_in":7200}
            //E:/work1/wxtest/jsapi_tiket.txt
            WriteToFile("d:/webwz/m/wxtest/jsapi_tiket.txt", "{\"errcode\":" + jstiket.errcode + ",\"errmsg\":\"" + jstiket.errmsg + "\",\"ticket\":\"" + jstik + "\",\"expires_in\":\"" + DateTime.Now.AddSeconds(Convert.ToInt32(jstiket.expires_in) - 300) + "\"}", false);
            return jstik;
        }
        else
        { //未过期就继续使用从文档中获取的AccessToken令牌
            return at.ticket;
        }
    }

json反序列化的

  /// <summary>
    /// json格式转化
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="jsonString"></param>
    /// <returns></returns>
    public T JsonDeserialize<T>(string jsonString)
    {
        System.Runtime.Serialization.Json.DataContractJsonSerializer ser = new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(T));
        System.IO.MemoryStream ms = new System.IO.MemoryStream(System.Text.Encoding.UTF8.GetBytes(jsonString));
        T obj = (T)ser.ReadObject(ms);
        return obj;
    }