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在.Net MVC结构API接口中判断http头信息实现公共的权限验证过滤器示例

//control   action 

public class TestController : ApiController
{
[MyAuthFilter]
public string test(string str)
{
return str.Trim();
}
}


谈模块独立拆分上线一些经验

上线时间:20151214


EntityFramework.BulkInsert扩展插入数据和EF本身插入数据比较

扩展下载地址:http://efbulkinsert.codeplex.com/


注意同时安装依赖项目,不然会报错,还有,程序中有同一个dll的其他版本,那就可能一次安装不上,得一个一个安装依赖的dll

Install-Package EntityFramework.MappingAPI -Version 6.0.0.7
Install-Package EntityFramework.BulkInsert-ef6


.NET获取当前程序所在电脑的CPU和内存使用率

Code:

using System;
using System.Diagnostics;
using System.Text;
using System.Runtime.InteropServices; 
namespace ConsoleApplication1
{
    class Program
    {
        public static PerformanceCounter cpu;
        //public static ComputerInfo cif;
        static void Main(string[] args)
        {
            cpu = new PerformanceCounter("Processor", "% Processor Time", "_Total");
           // cif = new ComputerInfo();
            MEMORY_INFO MemInfo;
            MemInfo = new MEMORY_INFO();
            while(true)
            {
                GlobalMemoryStatus(ref  MemInfo);
                Console.WriteLine(MemInfo.dwMemoryLoad.ToString() + "%的内存正在使用");
                var percentage = cpu.NextValue();
                Console.WriteLine(percentage + "%的CPU正在使用
");
                System.Threading.Thread.Sleep(2000);
            }
        }
        [DllImport("kernel32")]
        public static extern void GetSystemDirectory(StringBuilder SysDir, int count);
        [DllImport("kernel32")]
        public static extern void GetSystemInfo(ref  CPU_INFO cpuinfo);
        [DllImport("kernel32")]
        public static extern void GlobalMemoryStatus(ref  MEMORY_INFO meminfo);
        [DllImport("kernel32")]
        public static extern void GetSystemTime(ref  SYSTEMTIME_INFO stinfo);  
    }
    //定义CPU的信息结构  
    [StructLayout(LayoutKind.Sequential)]
    public struct CPU_INFO
    {
        public uint dwOemId;
        public uint dwPageSize;
        public uint lpMinimumApplicationAddress;
        public uint lpMaximumApplicationAddress;
        public uint dwActiveProcessorMask;
        public uint dwNumberOfProcessors;
        public uint dwProcessorType;
        public uint dwAllocationGranularity;
        public uint dwProcessorLevel;
        public uint dwProcessorRevision;
    }
    //定义内存的信息结构  
    [StructLayout(LayoutKind.Sequential)]
    public struct MEMORY_INFO
    {
        public uint dwLength;
        public uint dwMemoryLoad;
        public uint dwTotalPhys;
        public uint dwAvailPhys;
        public uint dwTotalPageFile;
        public uint dwAvailPageFile;
        public uint dwTotalVirtual;
        public uint dwAvailVirtual;
    }
    //定义系统时间的信息结构  
    [StructLayout(LayoutKind.Sequential)]
    public struct SYSTEMTIME_INFO
    {
        public ushort wYear;
        public ushort wMonth;
        public ushort wDayOfWeek;
        public ushort wDay;
        public ushort wHour;
        public ushort wMinute;
        public ushort wSecond;
        public ushort wMilliseconds;
    } 
}


.Net执行cmd获取系统信息

code:

            public string Test()
        {
            Stopwatch w = new Stopwatch();
            w.Start();
            StringBuilder sb = new StringBuilder();
            string str = RunCmdForJobs("systeminfo");
            string[] lines = str.Split(new string[] { "
" }, StringSplitOptions.RemoveEmptyEntries);
            foreach (string line in lines)
            {
                string[] temp = line.Split(new string[] { ": " }, StringSplitOptions.RemoveEmptyEntries);
                if (temp.Length == 2)
                    sb.AppendFormat("{0}:{1}<br/>", temp[0], temp[1].Trim(' '));
                else if (temp.Length == 1)
                    sb.AppendFormat("{0}<br/>", temp[0]);
            }
            //sb.Append(str);
            w.Stop();
            sb.AppendFormat("用时(毫秒):{0}<br/>", w.ElapsedMilliseconds);
            return sb.ToString();
        }
        /// <summary>
        /// 执行cmd命令
        /// 多命令请使用批处理命令连接符:
        /// <![CDATA[
        /// &:同时执行两个命令
        /// |:将上一个命令的输出,作为下一个命令的输入
        /// &&:当&&前的命令成功时,才执行&&后的命令
        /// ||:当||前的命令失败时,才执行||后的命令]]>
        /// 其他请百度
        /// </summary>
        public static string RunCmdForJobs(string cmdText)
        {
            string strOutput = "";
            var cmd = cmdText + " &exit"; //说明:不管命令是否成功均执行exit命令,否则当调用ReadToEnd()方法时,会处于假死状态
            using (var p = new System.Diagnostics.Process())
            {
                p.StartInfo.FileName = "C:\Windows\system32\cmd.exe";
                p.StartInfo.UseShellExecute = false; //是否使用操作系统shell启动
                p.StartInfo.RedirectStandardInput = true; //接受来自调用程序的输入信息
                p.StartInfo.RedirectStandardOutput = true; //由调用程序获取输出信息
                p.StartInfo.RedirectStandardError = true; //重定向标准错误输出
                p.StartInfo.CreateNoWindow = true; //不显示程序窗口
                p.Start(); //启动程序
                //向cmd窗口写入命令
                p.StandardInput.WriteLine(cmd);
                p.StandardInput.AutoFlush = true;
                strOutput = p.StandardOutput.ReadToEnd();
                p.WaitForExit(); //等待程序执行完退出进程
                p.Close();
            }
            return strOutput;
        }


.Net实现真实下载地址与迅雷、QQ旋风等下载地址转换

.Net Code:

            public string Index()
        {
            StringBuilder sb = new StringBuilder();
            string OrgStr="http://down.qq.com/ava/full/W_full/AVA_Client_Ver_1230_full.exe";
            string ThunderStr="thunder://QUFodHRwOi8vZG93bi5xcS5jb20vYXZhL2Z1bGwvV19mdWxsL0FWQV9DbGllbnRfVmVyXzEyMzBfZnVsbC5leGVaWg==";
            string QQdlStr="qqdl://aHR0cDovL2Rvd24ucXEuY29tL2F2YS9mdWxsL1dfZnVsbC9BVkFfQ2xpZW50X1Zlcl8xMjMwX2Z1bGwuZXhl";
            string FlashGetStr="flashget://W0ZMQVNIR0VUXWh0dHA6Ly9kb3duLnFxLmNvbS9hdmEvZnVsbC9XX2Z1bGwvQVZBX0NsaWVudF9WZXJfMTIzMF9mdWxsLmV4ZVtGTEFTSEdFVF0=&";
            string orgAddr = GetOriginalString(QQdlStr);//原地址
            sb.AppendFormat("{0}<br>", orgAddr);
            string thunderAddr = "AA" + orgAddr + "ZZ";
            thunderAddr = "thunder://" + EncodeBase64(thunderAddr);
            sb.AppendFormat("{0}<br>", thunderAddr);
            string qqdlAddr = "qqdl://" + EncodeBase64(orgAddr);
            sb.AppendFormat("{0}<br>", qqdlAddr);
            string flashGetAddr = string.Format("{0}{1}{0}", "[FLASHGET]", orgAddr);
            flashGetAddr = "flashget://" + EncodeBase64(flashGetAddr) + "&";
            sb.AppendFormat("{0}<br>", flashGetAddr);
            return sb.ToString();
        }
        public string EncodeBase64(string orgStr)
        {
            try
            {
                return Convert.ToBase64String(Encoding.Default.GetBytes(orgStr));
            }
            catch
            {
                return "";
            }
        }
        public string DecodeBase64(string encodeStr)
        {
            try
            {
                return Encoding.Default.GetString(Convert.FromBase64String(encodeStr));
            }
            catch
            {
                return "";
            }
        }
        public string GetOriginalString(string str)
        {
            string thunderPrefix="thunder://";
            string qqdlPrefix = "qqdl://";
            string flashgetPrefix = "flashget://";
            if(str.StartsWith("http://")||str.StartsWith("https://"))
            {
                return str;
            }
            else if (str.StartsWith(thunderPrefix))
            {
                string thunderAddr = str.Substring(thunderPrefix.Length);//去掉前缀
                thunderAddr = DecodeBase64(thunderAddr);//base64解码
                thunderAddr = thunderAddr.Substring(2, thunderAddr.Length - 4);//去掉前两个A,后两个Z
                return thunderAddr;
            }
            else if(str.StartsWith(qqdlPrefix))
            {
                string qqdlAddr = str.Substring(qqdlPrefix.Length);
                qqdlAddr = DecodeBase64(qqdlAddr);//base64解码
                return qqdlAddr;
            }
            else if (str.StartsWith(flashgetPrefix))
            {
                string flashgetAddr = str.Substring(flashgetPrefix.Length);
                flashgetAddr = flashgetAddr.Substring(0,flashgetAddr.Length-1);//去掉最后一个&号 
                flashgetAddr = DecodeBase64(flashgetAddr);
                flashgetAddr = flashgetAddr.Substring(10,flashgetAddr.Length-20);//去掉前后的[FLASHGET]
                return flashgetAddr;
            }
            return "";
        }


Redis缓存、MemCached和.Net内部缓存的切换使用

接口文件:

//IDataCache.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ypsuit.common
{
    public interface IDataCache
    {
        /// <summary>
        /// 获取缓存
        /// </summary>
        /// <typeparam name="T">类型</typeparam>
        /// <param name="key">缓存key</param>
        /// <returns></returns>
        T Get<T>(string key);
        T Get<T>(string key,string depFile);
        /// <summary>
        /// 写入缓存
        /// </summary>
        /// <typeparam name="T">类型</typeparam>
        /// <param name="key">缓存key</param>
        /// <param name="value">缓存值</param>
        /// <returns>返回值,表示:是否写入成功</returns>
        bool Set<T>(string key, T value);
        /// <summary>
        /// 写入缓存,设置过期时间点
        /// </summary>
        /// <typeparam name="T">类型</typeparam>
        /// <param name="key">缓存key</param>
        /// <param name="value">缓存值</param>
        /// <param name="expiresAt">过期时间点</param>
        /// <returns>返回值,表示:是否写入成功</returns>
        bool Set<T>(string key, T value, DateTime expiresAt);
        /// <summary>
        /// 写入缓存,设置过期秒数
        /// </summary>
        /// <typeparam name="T">类型</typeparam>
        /// <param name="key">缓存key</param>
        /// <param name="value">缓存值</param>
        /// <param name="expiresSecond">过期秒数</param>
        /// <returns>返回值,表示:是否写入成功</returns>
        bool Set<T>(string key, T value, int expiresSecond);
        bool Set<T>(string key, T value, string depFile);
        /// <summary>
        /// 删除缓存
        /// </summary>
        /// <param name="key">缓存key</param>
        /// <returns></returns>
        int Delete(string key);
        /// <summary>
        /// 删除多个缓存
        /// </summary>
        /// <param name="keys">缓存key数组</param>
        /// <returns></returns>
        int Delete(string[] keys);
    }
}


简单对七牛.Net API管理文件进行简单封装的类

//封装类代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Qiniu.Conf;
using Qiniu.RS;
using Qiniu.RPC;
using Qiniu.RSF;
using Qiniu.IO;
using Qiniu.IO.Resumable;
using System.IO;
using System.Web;
using System.Drawing.Imaging;
using Qiniu.FileOp;
using System.Net;
//要先引用qiniu的dll文件
namespace ypsuit.common.QiniuHelper
{
    public class QiniuHelper
    {
        /// <summary>
        /// cdnPath为网站服务器本地路径,本地备份一份,再上传到七牛空间一份
        /// </summary>
        private static readonly string cdnPath = DataHelper.GetAbsolutePath(CommonFun.GetConfigData(DataConfigKey.Qiniu.ToString(), DataConfigAttr.CDN_PATH.ToString()));
        /// <summary>
        /// 空间名
        /// </summary>
        public static readonly string bucket = CommonFun.GetConfigData(DataConfigKey.Qiniu.ToString(), DataConfigAttr.BUCKET.ToString());
        /// <summary>
        /// 七牛外域名
        /// </summary>
        public static readonly string Domain = CommonFun.GetConfigData(DataConfigKey.Qiniu.ToString(), DataConfigAttr.DOMAIN.ToString());
        /// <summary>
        /// 在网站/程序初始化时调用一次
        /// </summary>
        public static void Init()
        {
            //设置权限key
            Qiniu.Conf.Config.ACCESS_KEY = CommonFun.GetConfigData(DataConfigKey.Qiniu.ToString(), DataConfigAttr.ACCESS_KEY.ToString());
            //设置密匙key
            Qiniu.Conf.Config.SECRET_KEY = CommonFun.GetConfigData(DataConfigKey.Qiniu.ToString(), DataConfigAttr.SECRET_KEY.ToString());
        }
        #region 查看单个文件属性信息
        /// <summary>
        /// 查看单个文件属性信息
        /// </summary>
        /// <param name="bucket">七牛云存储空间名</param>
        /// <param name="key">文件key</param>
        public static void Stat(string bucket, string key)
        {
            RSClient client = new RSClient();
            Entry entry = client.Stat(new EntryPath(bucket, key));
            if (entry.OK)
            {
                Console.WriteLine("Hash: " + entry.Hash);
                Console.WriteLine("Fsize: " + entry.Fsize);
                Console.WriteLine("PutTime: " + entry.PutTime);
                Console.WriteLine("MimeType: " + entry.MimeType);
                Console.WriteLine("Customer: " + entry.Customer);
            }
            else
            {
                Console.WriteLine("Failed to Stat");
            }
        }
        #endregion
        /// <summary>
        /// 复制单个文件
        /// </summary>
        /// <param name="bucketSrc">需要复制的文件所在的空间名</param>
        /// <param name="keySrc">需要复制的文件key</param>
        /// <param name="bucketDest">目标文件所在的空间名</param>
        /// <param name="keyDest">标文件key</param>
        public static void Copy(string bucketSrc, string keySrc, string bucketDest, string keyDest)
        {
            RSClient client = new RSClient();
            CallRet ret = client.Copy(new EntryPathPair(bucketSrc, keySrc, bucketDest, keyDest));
            if (ret.OK)
            {
                Console.WriteLine("Copy OK");
            }
            else
            {
                Console.WriteLine("Failed to Copy");
            }
        }
        /// <summary>
        /// 移动单个文件
        /// </summary>
        /// <param name="bucketSrc">需要移动的文件所在的空间名</param>
        /// <param name="keySrc">需要移动的文件</param>
        /// <param name="bucketDest">目标文件所在的空间名</param>
        /// <param name="keyDest">目标文件key</param>
        public static void Move(string bucketSrc, string keySrc, string bucketDest, string keyDest)
        {
            Console.WriteLine("
===> Move {0}:{1} To {2}:{3}",
            bucketSrc, keySrc, bucketDest, keyDest);
            RSClient client = new RSClient();
            new EntryPathPair(bucketSrc, keySrc, bucketDest, keyDest);
            CallRet ret = client.Move(new EntryPathPair(bucketSrc, keySrc, bucketDest, keyDest));
            if (ret.OK)
            {
                Console.WriteLine("Move OK");
            }
            else
            {
                Console.WriteLine("Failed to Move");
            }
        }
        /// <summary>
        /// 删除单个文件
        /// </summary>
        /// <param name="bucket">文件所在的空间名</param>
        /// <param name="key">文件key</param>
        public static void Delete(string bucket, string key)
        {
            //Console.WriteLine("
===> Delete {0}:{1}", bucket, key);
            RSClient client = new RSClient();
            CallRet ret = client.Delete(new EntryPath(bucket, key));
            //if (ret.OK)
            //{
            //    Console.WriteLine("Delete OK");
            //}
            //else
            //{
            //    Console.WriteLine("Failed to delete");
            //}
        }
        /// <summary>
        /// 批量获取文件信息
        /// </summary>
        /// <param name="bucket"></param>
        /// <param name="keys"></param>
        public static void BatchStat(string bucket, string[] keys)
        {
            RSClient client = new RSClient();
            List<EntryPath> EntryPaths = new List<EntryPath>();
            foreach (string key in keys)
            {
                Console.WriteLine("
===> Stat {0}:{1}", bucket, key);
                EntryPaths.Add(new EntryPath(bucket, key));
            }
            client.BatchStat(EntryPaths.ToArray());
        }
        /// <summary>
        /// 批量复制
        /// </summary>
        /// <param name="bucket"></param>
        /// <param name="keys"></param>
        public static void BatchCopy(string bucket, string[] keys)
        {
            List<EntryPathPair> pairs = new List<EntryPathPair>();
            foreach (string key in keys)
            {
                EntryPathPair entry = new EntryPathPair(bucket, key, Guid.NewGuid().ToString());
                pairs.Add(entry);
            }
            RSClient client = new RSClient();
            client.BatchCopy(pairs.ToArray());
        }
        /// <summary>
        /// 批量移动
        /// </summary>
        /// <param name="bucket"></param>
        /// <param name="keys"></param>

.Net中模拟上传文件动态显示进度的事件示例

.Net Code:

    public class UploadEventArgs : EventArgs//作为事件的参数,必须派生自EventArgs基类
    {
        public UploadEventArgs(int percent)
        {
            this.Percent = percent;
        }
        public int Percent { get; set; }
    }
    public class Upload
    {
        public event EventHandler<UploadEventArgs> Uploading;//定义事件,上传中实时通知上传进度
        public int Percent{get;private set;}
        public Upload()
        {
            Percent = 0;
        }
        public void DoUpload()
        {
            UploadEventArgs ev=new UploadEventArgs(0);
            while(Percent<100)
            {
//上传文件代码简单,就不写出了
                System.Threading.Thread.Sleep(1000);
                Percent+=15;
                if (Percent > 100) Percent = 100;
                ev.Percent=Percent;
                Uploading(this, ev);
            }
        }
    }
    public class FileToUpload
    {
        private string fileName;
        public FileToUpload(string filename)
        {
            this.fileName = filename;
        }
        public void GetStatus(object sender, UploadEventArgs e)
        {
            Console.WriteLine("file:{0},UploadPercent:{1}", fileName, e.Percent);
        }
    }
    public class EventTest
    {
        public void test()
        {
            var upload = new Upload();
            var file = new FileToUpload("001.dox");
            upload.Uploading += file.GetStatus;
            upload.DoUpload();
        }
    }


给ef6的实体模型 edmx文件加字段注释

code smith 模版(要下载code smith软件使用):

//生成注释部分代码

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