服务器开发—Socket通信实例（二）

来源：互联网发布：人工智能要那些专业编辑：程序博客网时间：2024/04/28 13:03

客户端的例子过程比较简单

1、先建立Socket

2、建立connect

3、接收/发送

注意是接收是阻塞模式

客户端代码：

ChatClient.cpp

/* * ChatClient.cpp * *  Created on: 2012-9-29 *      Author: root */#include "ClientSocket.h"#include "SocketException.h"#include <string>#include <iostream>#include "Encoder.h"#include "Decoder.h"using namespace std;int main() {cout << "====Running Client...====" << endl;try{std::string strValue = "{\"action\":\"Test\"}";ClientSocket clientSocket("127.0.0.1",888000);//string massage=Encoder::encoder(strValue);//cout << Decoder::decoder(massage) << endl;while(1){//clientSocket.Recevie(massage);//cout << "Response from server:" << massage << endl;//massage.clear();clientSocket.Send(Encoder::encoder(strValue));sleep(5);}}catch (SocketException& e) {cout << "Exception was caught:" << e.DisplayMsg() << endl;}return 0;}

Decoder.h 解析数据

解析数据是必需的，因为Socket机制会优先发送的机制，从而导致粘包现在（将两次小数据当作一次来），其中有两种解决方法，一种是设置setsocketopt，不支持nagle算法，第二就是进行对包封装，一般是计算数据长度，并加入到包头，解析时就先解析包头的长度，接下来就一直接收到该长度就可得到“刚好”的数据

/* * Decoder.h * *  Created on: 2012-10-18 *      Author: root */#ifndef DECODER_H_#define DECODER_H_#include <string>class Decoder {public:Decoder();virtual ~Decoder();static std::string decoder(std::string message);};#endif /* DECODER_H_ */

Decoder.cpp 解析数据实现类

/* * Decoder.cpp * *  Created on: 2012-10-18 *      Author: root */#include "Decoder.h"#include "TypeConvert.h"Decoder::Decoder() {}Decoder::~Decoder() {}std::string Decoder::decoder(std::string message) {int length = message.length();if (length <= 4) {return ""; // waite}std::string datalengstr = message.substr(0, 4);int dataleng = TypeConvert::Strint2Int(datalengstr);if (dataleng > length - 4) {return "";}return message.substr(4, length - 4);}

Encoder.h 加密数据

/* * Encoder.h * *  Created on: 2012-10-18 *      Author: root */#ifndef ENCODER_H_#define ENCODER_H_#include <string>class Encoder {public:Encoder();virtual ~Encoder();static std::string encoder(std::string message);};#endif /* ENCODER_H_ */

Encoder.cpp 加密数据类

/* * Encoder.cpp * *  Created on: 2012-10-18 *      Author: root */#include "Encoder.h"#include "TypeConvert.h"#include <iostream>Encoder::Encoder() {// TODO Auto-generated constructor stub}Encoder::~Encoder() {// TODO Auto-generated destructor stub}std::string Encoder::encoder(std::string message) {int length = message.length();std::string lenstr = TypeConvert::Int2String(length);if (length < 10) {lenstr = "000" + lenstr;} else if (length < 100) {lenstr = "00" + lenstr;} else if (length < 1000) {lenstr = "0" + lenstr;}return (lenstr + message);}