词频统计（WEB）版

时间：2021-07-25 11:51:12

需求：

　　　在以前的基础上把程序迁移到web平台，通过用户上传TXT的方式接收文件。

前端页面代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>

    <title></title>

</head>

<body>

    <form id="form1" runat="server">

        <h4>词频统计器

            </h4>

    <div>

        <p>

            请选择文件：<asp:FileUpload ID="FileUpload1" runat="server" />

        </p>

        <p>

            <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" style="height: 21px; width: 62px" Text="查询" />

        </p>

    </div>

        <div>

            <asp:TextBox ID="TextBox1" runat="server" Height="300px" TextMode="MultiLine" Width="326px" Enabled="False"></asp:TextBox>

        </div>

    </form>

</body>

</html>

　　页面显示：

词频统计（WEB）版

后台管理代码：

using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

using System.Text;

using System.Collections.Generic;

using System.IO;

public partial class _Default : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

    }

    protected void Button1_Click(object sender, EventArgs e)

    {

        if (FileUpload1.HasFiles)

        {

            int n = 0;

            string strfile = FileUpload1.PostedFile.FileName;

            string strout;

            StreamReader sr = File.OpenText(strfile);

            String input = sr.ReadToEnd();

            sr.Close();

            //Response.Write(input);

            char[] text = input.ToCharArray();

            Dictionary<string, int> map = new Dictionary<string, int>();

            for (int i = 0; i < text.Length; i++)

            {

                string s = "";

                while (i < text.Length && ((text[i] >= 'a' && text[i] <= 'z') || (text[i] >= 'A' && text[i] <= 'Z') || text[i] == '-'))

                {

                    if (text[i] >= 'A' && text[i] <= 'Z')

                        s += (text[i] + 32);

                    else

                        s += text[i];

                    i++;

                }

                if (!map.ContainsKey(s))

                {

                    if (s == "") continue;

                    n++;

                    map.Add(s, 1);

                }

                else

                {

                    map[s]++;

                }

            }

            strout = "";

            strout = "单次总数为:" + n.ToString() + "\n";

            List<KeyValuePair<string, int>> myList = new List<KeyValuePair<string, int>>(map);

            myList.Sort(delegate (KeyValuePair<string, int> s1, KeyValuePair<string, int> s2)

            {

                return s2.Value.CompareTo(s1.Value);

            });

            map.Clear();

            foreach (KeyValuePair<string, int> pair in myList)

            {

                strout = strout + pair.Key + " " + pair.Value + "\n";

                //dic.Add(pair.Key, pair.Value);

            }

            TextBox1.Text = strout;

        }

    }

}

　　运行结果：

词频统计（WEB）版

HTTPS:https://git.coding.net/ziyoujay/cipintongji_WEB.git

SSH:git@git.coding.net:ziyoujay/cipintongji_WEB.git

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