ROS_Xmlrpc++ 简单示例

最新推荐文章于 2024-07-15 22:55:54 发布

原创最新推荐文章于 2024-07-15 22:55:54 发布 · 2k 阅读

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本文介绍了一个使用C++实现的简单XML-RPC服务器示例，包括服务器端和客户端的代码实现，展示了如何通过XML-RPC进行远程过程调用。

根据 https://www.ibm.com/developerworks/cn/webservices/ws-xml-rpc/代码修改而来：
XmlRpc 简单代码示例

operations.h：
#ifndef OPERATIONS
#define OPERATIONS
class operations {
public:
  int add();
  operations(int i,int j);
private :
  int op1;
  int op2;
};
#endif // OPERATIONS

operations.cpp ：
#include <iostream>
#include "operations.h"
int operations::add(){
  std::cout<< "Sum of " <<op1<<"+"<<op2<<"="<<op1+op2<<std::endl;
  return (op1+op2);
}
operations::operations(int i,int j){
  this->op1 = i;
  this->op2 = j;
}

myxmlrpcserver.h:
#ifndef MYXMLRPCSERVER
#define MYXMLRPCSERVER
#include <iostream>
#include "myxmlrpcservermethods.h"
#include "XmlRpc.h"

class myXmlRpcServer
{
public:
  myXmlRpcServer() ;
  ~myXmlRpcServer();
  void run();
private:
  void pm_registerMethods();
  XmlRpc::XmlRpcServer pm_xmlRpcserver;
  std::list<myXmlRpcServerMethod*> pm_serverMethods;
};

#endif // MYXMLRPCSERVER

myxmlrpcserver.cpp :
#include "myxmlrpcserver.h"
#include <iostream>

myXmlRpcServer::myXmlRpcServer(){
    pm_registerMethods();
    int port = 8085;
    pm_xmlRpcserver.bindAndListen(port);
    std::cout<<"XmlRpcServer running in port " << port<<std::endl;
}
myXmlRpcServer::~myXmlRpcServer(){
}

void myXmlRpcServer::pm_registerMethods(){
  Add* a = new Add(&pm_xmlRpcserver);
  myXmlRpcServerMethod *p=a;
  pm_serverMethods.push_back(p);
}
void myXmlRpcServer::run(){
  pm_xmlRpcserver.work(-1);
}

myxmlrpcservermethods.h:
#ifndef MYXMLRPCSERVERMETHODS
#define MYXMLRPCSERVERMETHODS
#include <iostream>
#include <XmlRpc.h>
#include "myxmlrpcserver.h"

using namespace XmlRpc;
class myXmlRpcServerMethod : public XmlRpcServerMethod {
public:
  myXmlRpcServerMethod(const char *name,XmlRpcServer *server):
  XmlRpcServerMethod(name,server){}
  virtual void execute(XmlRpcValue &params,XmlRpcValue &result){ }
};
class Add:public myXmlRpcServerMethod{
public:
  Add(XmlRpcServer *s);
  virtual void execute(XmlRpcValue &params,XmlRpcValue &result);
};

#endif // MYXMLRPCSERVERMETHODS

myxmlrpcservermethods.cpp:
#include <iostream>
#include "myxmlrpcserver.h"
#include <XmlRpc.h>
#include "operations.h"
using namespace std;
using XmlRpc::XmlRpcException;
Add::Add(XmlRpcServer*s) :myXmlRpcServerMethod("Add",s){}
void Add::execute(XmlRpcValue &params, XmlRpcValue &result){
    operations a(10,12);
    try{
     cout<<"Inside Add::execute method\n";
     result = a.add();
    }catch(std::exception &stde){
     throw XmlRpcException(stde.what());
    }
}
服务器端：

#include <iostream>
#include "myxmlrpcserver.h"
using std;
int main(int argc ,char *argv[]){

    myXmlRpcServer GeeBoomBaa;
    std::cout<<"About to run the server\n";
    GeeBoomBaa.run();
    return 0;
}

客户端：
#include <iostream>
#include "myxmlrpcserver.h"
using namespace XmlRpc;
int main(int argc, char* argv[])
{
        const char *server = "localhost";
        const int port = 8085;
        const char *uri = NULL;
        XmlRpcValue args, res;
        XmlRpcClient c( server, port, uri);
        c.execute("Add", args, res);
        std::cout<<"result is "<<res<<std::endl;
}