C#抓取网页股票年报数据程序源代码

【实例截图】

【核心代码】

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.IO;
using DevComponents.DotNetBar;

namespace getHtml
{
    public partial class Form1 : Office2007Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                HTMLReader.url = "http://stockdata.stock.hexun.com/2008/zxcwzb.aspx?stockid="   gpcode.Text   "&accountdate="   nf.Text   ".12.31";
                HTMLReader.startKey = "基本每股收益（元)</strong></div></td><td><div class='tishi'>";
                HTMLReader.endKey = "</div>";
                HTMLReader.MidKey = "";
                HTMLReader.headLength = 0;
                string code = gpcode.Text;
                string name = gpname.Text;
                string mark = "", head = "";
                head = code.Substring(0, 1);
                if (Convert.ToInt32(head) < 5)
                {
                    mark = "SZ";
                }
                else
                {
                    mark = "SS";
                }
                string html = HTMLReader.GetHtml();
                //每股收益
                string mgsy = HTMLReader.GetValue();
                txt_mgsy.Text = mgsy;

                HTMLReader.startKey = "每股净资产（元)</strong></div></td><td><div class='tishi'>";
                HTMLReader.endKey = "</div>";
                //每股净资产
                string mgjzc = HTMLReader.GetValue();
                txt_mgjzc.Text = mgjzc;

                HTMLReader.startKey = "净资产收益率（摊薄)(%)</strong></div></td><td><div class='tishi'>";
                HTMLReader.endKey = "</div>";
                //净资产收益率
                string jzcsyl = HTMLReader.GetValue();
                txt_jzcsyl.Text = jzcsyl;

                HTMLReader.startKey = "每股经营活动产生的现金流量净额（元)</strong></div></td><td><div class='tishi'>";
                HTMLReader.endKey = "</div>";
                //每股现金流量
                string mgxjll = HTMLReader.GetValue();
                txt_mgxjll.Text = mgxjll;

                HTMLReader.startKey = "总资产（元)</strong></div></td><td><div class='tishi'>";
                HTMLReader.endKey = "</div>";
                //总资产
                string zzc = HTMLReader.GetValue();
                decimal d;
                decimal.TryParse(zzc, out d);
                d = Math.Round(d / 100000000,2);
                txt_zzc.Text = d.ToString();

                zjs.Text = "读取字节数："   Convert.ToString(Math.Round(html.Length / 1024.0F, 2))   "K";

                StreamWriter sw = new StreamWriter("nianbao\\" gpcode.Text   gpname.Text   "("   nf.Text   ").htm", false, Encoding.GetEncoding("GB2312"));
                sw.Write(html);
                sw.Close();
            }
            catch
            {
                MessageBox.Show("获取年报数据时出错！");
            }

        }

        private void Form1_Load(object sender, EventArgs e)
        {
            
            for (int i = 2004; i < 2050; i  )
            {
                nf.Items.Add(i);
            }
            
        }

        private void name_Leave(object sender, EventArgs e)
        {
            
        }

        private void name_TextChanged(object sender, EventArgs e)
        {
            
        }
        
        public string getName(string dm)
        {
            
            string mc = dbedit.GetString("select gpname from gpdm where gpcode='"   dm   "'");
            if (string.IsNullOrEmpty(mc))
            {
                mc = "";
            }
            return mc;
        }

        private void code_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Enter)
            {
                gpname.Text = getName(gpcode.Text);
            }
        }

        private void code_Leave(object sender, EventArgs e)
        {
            gpname.Text = getName(gpcode.Text);
        }

        private void buttonX1_Click(object sender, EventArgs e)
        {
            DataTable dt = dbedit.GetDataTable("select * from 年报 where code='"   gpcode.Text   "' and nian="   nf.Text   "");
            if (dt.Rows.Count > 0)
            {
                MessageBox.Show("数据已经存在，请核对！");
                return;
            }

            dbedit.ExecSQL("insert into 年报 (name,code,zzc,mgsy,mgjzc,mgxjll,jzcsyl,nian) values ("
                  "'"   gpname.Text   "'"
                  ",'"   gpcode.Text   "'"
                  ","   txt_zzc.Text   ""
                  ","   txt_mgsy.Text   ""
                  ","   txt_mgjzc.Text   ""
                  ","   txt_jzcsyl.Text   ""
                  ","   txt_mgxjll.Text   ""
                  ","   nf.Text   ""
                  ")");
            MessageBox.Show("保存成功！");
        }
    }
}