c# 调用金蝶登录，并解析PropsString

金蝶的登录界面，主要是COM技术，在.NET4.0之前，我们使用Reflection来调用，而.NET4.0之后，我们可以使用Dynamic特性来调用了。以下是使用.NET2.0来实现的，没有什么好说的，直接上代码，代码就是最好的说明，以下是我封装的一个类：

using System;
using System.Collections.Generic;
using System.Text;
using System.Data.OleDb;
using System.Data.SqlClient;

namespace System {
    public class KingdeeLogin {

        private object _kingdeeLoginObject;
        private Type _kingdeeLoginType;

        private string _sqlConnectionString;
        private string _accountName;
        private string _userName;
        private int _userId;

        public KingdeeLogin() {
            _kingdeeLoginType = Type.GetTypeFromProgID("K3Login.ClsLogin", true);
            _kingdeeLoginObject = Activator.CreateInstance(_kingdeeLoginType);
            _sqlConnectionString = "";
        }

        public bool CheckLogin() {
            var result = _kingdeeLoginType.InvokeMember("CheckLogin",
                 Reflection.BindingFlags.InvokeMethod | Reflection.BindingFlags.Instance | Reflection.BindingFlags.Public,
                 null, _kingdeeLoginObject, null);

            bool bResult = (bool)result;
            if (bResult) { InitialLoginDatas(); }

            return bResult;
        }

        #region 解析金蝶的PROP_STRING

        private void InitialLoginDatas() {
            string kingdeePropString = _kingdeeLoginType.InvokeMember("PropsString",
                Reflection.BindingFlags.GetProperty | Reflection.BindingFlags.Instance | Reflection.BindingFlags.Public,
                null, _kingdeeLoginObject, null).ToString();

            _accountName = _kingdeeLoginType.InvokeMember("AcctName",
                Reflection.BindingFlags.GetProperty | Reflection.BindingFlags.Instance | Reflection.BindingFlags.Public,
                null, _kingdeeLoginObject, null).ToString();

            ParsePropStringToField(kingdeePropString);
        }


        private void ParsePropStringToField(string propString) {
            var datas = ReadPropStringToDictinary(propString);

            _userName = GetValueFromDictionay("UserName", datas);
            _userId = int.Parse(GetValueFromDictionay("UserID", datas));
            _sqlConnectionString = ConvertSqlConnectionString(GetValueFromDictionay("ConnectString", datas));

            //这里大家可以继续扩展，因为PropsString里面还有很多字段。
        }

        private string ConvertSqlConnectionString(string oleDbConnectionString) {
            OleDbConnectionStringBuilder oleBuilder =
           new OleDbConnectionStringBuilder(oleDbConnectionString);
            SqlConnectionStringBuilder sqlBuilder =
                new SqlConnectionStringBuilder();

            sqlBuilder.UserID = oleBuilder["User ID"].ToString();
            sqlBuilder.Password = oleBuilder["Password"].ToString();
            sqlBuilder.DataSource = oleBuilder["Data Source"].ToString();
            sqlBuilder.InitialCatalog = oleBuilder["Initial Catalog"].ToString();

            object IntegratedSecurity;
            if (oleBuilder.TryGetValue("Integrated Security", out IntegratedSecurity)) {
                if (IntegratedSecurity.ToString().ToUpper() == "SSPI") {
                    sqlBuilder.IntegratedSecurity = true;
                }
            } else {
                sqlBuilder.IntegratedSecurity = false;
            }


            return sqlBuilder.ConnectionString;
        }

        private Dictionary<string, string> ReadPropStringToDictinary(string propString) {
            Dictionary<string, string> result = new Dictionary<string, string>();
            int curIndex = 0;
            while (curIndex < propString.Length) {
                curIndex += ReadSection(result, propString.Substring(curIndex));
            }
            return result;
        }

        private int ReadSection(Dictionary<string, string> sections, string source) {
            int lengthResult = 0;
            string key = "";
            string value = "";
            lengthResult += ReadKey(source, out key);
            lengthResult += ReadValue(source.Substring(lengthResult), out value);
            sections.Add(key, value);
            return lengthResult;
        }

        private int ReadKey(string source, out string key) {
            key = "";
            int lengthResult = 0;
            for (int i = 0; i < source.Length; i++) {
                lengthResult = i + 1;
                if (source[i] == '=') {
                    break;
                } else {
                    key += source[i];
                }
            }

            return lengthResult;
        }

        private int ReadValue(string source, out string value) {
            value = "";
            int lengthResult = 0;
            Stack<char> charStack = new Stack<char>();
            for (int i = 0; i < source.Length; i++) {
                char c = source[i];
                lengthResult = i + 1;

                if (c == '{') {
                    if (charStack.Count > 0)
                        value += c;
                    charStack.Push(c);
                } else if (c == '}') {
                    charStack.Pop();
                    if (charStack.Count > 0)
                        value += c;
                } else if (c == ';') {
                    if (charStack.Count > 0) {
                        value += c;
                    } else {
                        break;
                    }
                } else {
                    value += c;
                }

            }

            return lengthResult;
        }


        private string GetValueFromDictionay(string key, Dictionary<string, string> source) {
            string dicKey = "";
            foreach (string sKey in source.Keys) {
                if (key.Trim().ToUpper() == sKey.Trim().ToUpper()) {
                    dicKey = sKey;
                    break;
                }
            }

            if (string.IsNullOrEmpty(dicKey)) return string.Empty;
            return source[dicKey];
        }


        #endregion




        public string SqlConnectionString { get { return _sqlConnectionString; } }

        public string AccountName { get { return _accountName; } }

        public string UserName { get { return _userName; } }

        public int UserID { get { return _userId; } }

    }
}

调用方式如下：

    static class Program {

        public static string SqlConnectionString = "";
        public static string AccountName = "";
        public static string LoginUserName = "";

        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main() {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);

            if (!InitialConnectionString()) return;
            Application.Run(new FrmMain());
        }



        static bool InitialConnectionString() {
            try {
                KingdeeLogin clsLogin = new KingdeeLogin();
                if (clsLogin.CheckLogin()) {
                    SqlConnectionString = clsLogin.SqlConnectionString;
                    AccountName = clsLogin.AccountName;
                    LoginUserName = clsLogin.UserName;

                    if (!TestConnectionString(SqlConnectionString)) {
                        MessageBox.Show("无法连接到服务器数据库，请确保服务器端的防火墙没有屏蔽相应端口！",
                            "错误提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
                       return false;
                    }

                    return true;
                }

                return false;

            } catch {
                MessageBox.Show("只能在安装了金蝶客户端的机器上运行！", "错误提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return false;
            }

        }


        static bool TestConnectionString(string connectionString) {
            try {
                SqlConnection connection = new SqlConnection(connectionString);
                connection.Open();
                connection.Close();
                return true;
            } catch {

                return false;
            }

        }



    }

希望能帮助到那些用c#做金蝶二次开发的。