C# 线程操作

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Configuration;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using BLL;
using Model;
using log4net;
using System.Windows.Forms;

namespace TerminalAccessService
{
    public partial class TerminalAccessForm : Form
    {
        private readonly ILog _log;
        AlarmInfoBLL _alarmInfoBll = new AlarmInfoBLL();
        AuditRecordsBLL _auditRecordsBll = new AuditRecordsBLL();
        AuditRecordsHistoryBLL _auditRecordsHistoryBll = new AuditRecordsHistoryBLL();
        AuditStrategyInfoBLL _auditStrategyInfoBll = new AuditStrategyInfoBLL();
        AuditAccessClientInfoBLL _auditAccessClientInfoBll = new AuditAccessClientInfoBLL();
        VlanBLL _vlanBll = new VlanBLL();
        private Thread thread;
        private bool flag = true;
        public TerminalAccessForm()
        {
            InitializeComponent();
            try
            {
                thread = new Thread(Init);
            }
            catch (Exception)
            {
                flag = false;
            }
            _log = LogManager.GetLogger("TerminalAccessForm");
        }

        /// <summary>
        /// 初始化线程
        /// </summary>
        public void Init()
        {
            while (flag)
            {
                ExecuteFunction();
                Thread.Sleep(5000);
            }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btn_start_Click(object sender, EventArgs e)
        {
            thread.Start();
            tbx_content.Text += "正在启动服务，请稍候...";
        }

        /// <summary>
        /// 线程固定时间执行方法
        /// </summary>
        public void ExecuteFunction()
        {
            try
            {
                //从sqlserver获取数据
                var data = _alarmInfoBll.Query();
                foreach (var alarmInfo in data)
                {
                    ReadData(alarmInfo);
                    ProcessData(alarmInfo);
                }
            }
            catch (Exception)
            {
                flag = false;
            }
        }

        /// <summary>
        /// 过程一：读取数据
        /// </summary>
        /// <param name="alarmInfo"></param>
        public void ReadData(AlarmInfo alarmInfo)
        {
            //从mysql获取数据
            var tmp = _auditRecordsBll.IsExist(new AuditRecord()
            {
                Ip = alarmInfo.Ip,
                Mac = alarmInfo.Mac,
                ClrType = alarmInfo.Type
            });
            if (tmp != null)
            {
                tmp.ClrTime = DateTime.Now.ToString();
                _auditRecordsBll.Update(tmp);
                _auditRecordsHistoryBll.Save(new AuditRecordsHistory()
                {
                    Ip = alarmInfo.Ip,
                    Mac = alarmInfo.Mac,
                    ClrType = alarmInfo.Type,
                    ClrMsg = alarmInfo.Msg,
                    ClrTime = alarmInfo.AlarmTime
                });
            }
            else
            {
                _auditRecordsBll.Save(new AuditRecord()
                {
                    Ip = alarmInfo.Ip,
                    Mac = alarmInfo.Mac,
                    ClrType = alarmInfo.Type,
                    ClrMsg = alarmInfo.Msg,
                    ClrTime = alarmInfo.AlarmTime.ToString()
                });
            }
        }

        /// <summary>
        /// 过程二：处理数据
        /// </summary>
        /// <param name="alarmInfo"></param>
        public void ProcessData(AlarmInfo alarmInfo)
        {
            var data2 = _auditStrategyInfoBll.QueryByType(alarmInfo.Type);
            var memo = "";
            if (data2.IsAccess == 0)
            {
                memo = "自动禁止准入";
                var ipManService = new IpManService.IpManService();
                var data = _vlanBll.QueryCoreSwitch(alarmInfo.Ip);
                foreach (var vlanBindDefaultSwtich in data)
                {
                    var tmp = ipManService.DisableIp(alarmInfo.Ip, alarmInfo.Mac, vlanBindDefaultSwtich.Switch);
                }
            }
            _auditAccessClientInfoBll.Save(new AuditAccessClientInfo()
            {
                ClientIp = alarmInfo.Ip,
                ClientMac = alarmInfo.Mac,
                ClientName = alarmInfo.DeviceName,
                IsAccess = int.Parse(alarmInfo.Type),
                Memo = memo
            });
        }

        private void btn_end_Click(object sender, EventArgs e)
        {
            thread.Abort();
            tbx_content.Text += "\r\n正在关闭服务，请稍候...\r\n";
        }
    }
}