Delphi IdTCPClient[1] 介绍、属性、方法

Delphi IdTCPClient[1] 介绍、属性、方法

1、介绍

实现TCP客户端。TIdTCPClient封装了一个完整的TCP（传输控制协议）客户端，包括socks支持。TIdTCPClient可以用作特定协议实现的祖先类。许多Indy客户端组件，如TIdDayTime、TIdEcho、TIdFinger、TIdFTP、TIdGopher、TIdPHTTP、TIdNNTP、TIdPOP3、TIdQUOT、TIdSMTP、TIdTelnet和TIdWhois都是TIdTCPClient的后代

unit IdTCPClient;

interface

uses
  Classes, IdStack,
  IdException, IdGlobal, IdTCPConnection;

const
  BoundPortDefault = 0;

type
  TIdTCPClient = class(TIdTCPConnection)
  protected
    FBoundIP: string;
    FBoundPort: Integer;
    FBoundPortMax: Integer;
    FBoundPortMin: Integer;
    FHost: string;
    FOnConnected: TNotifyEvent;
    FPassword: string;
    FPort: integer;
    FUsername: string;
    //
    procedure SetHost(const Value: string); virtual;
    procedure SetPort(const Value: integer); virtual;
    procedure DoOnConnected; virtual;
    //
    property Username: string read FUsername write FUsername;
    property Password: string read FPassword write FPassword;
  public
    procedure Connect(const ATimeout: Integer = IdTimeoutDefault); virtual;
    function ConnectAndGetAll: string; virtual;
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
    //
    property BoundPortMax: Integer read FBoundPortMax write FBoundPortMax;
    property BoundPortMin: Integer read FBoundPortMin write FBoundPortMin;
  published
    property BoundIP: string read FBoundIP write FBoundIP;
    property BoundPort: Integer read FBoundPort write FBoundPort default BoundPortDefault;
    property Host: string read FHost write SetHost;
    property OnConnected: TNotifyEvent read FOnConnected write FOnConnected;
    property Port: integer read FPort write SetPort;
  end;

implementation

uses
  IdComponent, IdIOHandlerSocket, IdResourceStrings,
  SysUtils;

2、属性：

• BoundIP
• BoundPort
• BoundPortMax
• BoundPortMin
• Host
• OnConnected
• Port

TIdTCPConnection

• ASCIIFilter
• ClosedGracefully
• Greeting
• InputBuffer
• Intercept
• IOHandler
• LastCmdResult
• MaxLineAction
• MaxLineLength
• OnDisconnected
• OnWork
• OnWorkBegin
• OnWorkEnd
• ReadLnSplit
• ReadLnTimedOut
• ReadTimeout
• RecvBufferSize
• SendBufferSize
• Socket

TIdComponent

• LocalName

TIdBaseComponent

• Version

3、方法

TIdTCPClient

• Connect
• ConnectAndGetAll
• Create
• Destroy

TIdTCPConnection

• AllData
• CancelWriteBuffer
• procedure Capture(ADest: TStream; const ADelim: string = '.'; const AIsRFCMessage: Boolean = True); overload;
• procedure Capture(ADest: TStream; out VLineCount: Integer; const ADelim: string = '.'; const AIsRFCMessage: Boolean = True); overload;
• procedure Capture(ADest: TStrings; const ADelim: string = '.'; const AIsRFCMessage: Boolean = True); overload;
• procedure Capture(ADest: TStrings; out VLineCount: Integer; const ADelim: string = '.'; const AIsRFCMessage: Boolean = True); overload;
• CheckForDisconnect
• CheckForGracefulDisconnect
• CheckResponse
• ClearWriteBuffer
• CloseWriteBuffer
• Connected
• Create
• CurrentReadBuffer
• Destroy
• Disconnect
• DisconnectSocket
• FlushWriteBuffer
• GetInternalResponse
• function GetResponse(const AAllowedResponses: array of SmallInt): SmallInt; virtual; overload;
• function GetResponse(const AAllowedResponse: SmallInt): SmallInt; overload;
• InputLn
• OpenWriteBuffer
• procedure RaiseExceptionForLastCmdResult; virtual; overload;
• procedure RaiseExceptionForLastCmdResult(AException: TClassIdException); virtual; overload;
• ReadBuffer
• ReadCardinal
• ReadChar
• ReadFromStack
• ReadInteger
• ReadLn
• ReadLnWait
• ReadSmallInt
• ReadStream
• ReadString
• ReadStrings
• function SendCmd(const AOut: string; const AResponse: SmallInt = -1): SmallInt; overload;
• function SendCmd(const AOut: string; const AResponse: Array of SmallInt): SmallInt; virtual; overload;
• WaitFor
• Write
• WriteBuffer
• WriteCardinal
• WriteFile
• WriteHeader
• WriteInteger
• WriteLn
• WriteRFCReply
• WriteRFCStrings
• WriteSmallInt
• WriteStream
• WriteStrings

TIdComponent

• BeginWork
• Create
• Destroy
• DoWork
• EndWork

TIdBaseComponent

• GetVersion

4、事件

• OnStatus     //OnStatus是当前连接状态更改时触发的TIdStatusEvent事件处理程序。OnStatus由DoStatus方法触发，该方法提供事件处理程序使用的参数。axStatus是当前连接的TIdStatus值。aaArgs是Format函数的可选参数，用于构造表示当前连接状态的文本消息。

创建时间：2022.11.21　　更新时间：