解析XML格式的配置文件

摘要: C++ tinyxml 解析 xml格式的配置文件

本人是幼年程序猿，至今尚未成型

在以前的编程中（简直就是闹着玩的）用到的一些外部的参数，要不是在程序执行的时候在命令行中传进去，要不然就是用宏定义。之后才发现人家都是程序读取配置文件，只要程序编译好，需要时只要更改配置文件里的配置选项即可，配置文件一般是xml格式。

tinyxml是一款好用的C++开源的解析工具，在使用前需要将tinystr.cpp,tinyxml.cpp,tinyxmlerror.cpp,tinyxmlparser.cpp,tinyxml.htinystr.h着六个文件拷到你的工程的目录下，需要的话可以在http://sourceforge.net/projects/tinyxml/ 下载。

No Ex You C 个 J8 写个例子吧

Ex1：‍‍info.xml ‍‍

<?xml version=" 1.0" encoding=" gb2312?>
<School name = "softengine">
<Class name = "C++">
<Student name = "andy" number = "36" phone = "123456789">
<email>andy@163.com</email>
<address>Beijing</address>
<sex>man</sex>
</Student>
</Class>
</School>

Test_XML.cpp

#include<iostream>
#include<string>
#include<map>
#include "tinystr.h"
#include "tinyxml.h"

using namespace std;

void ReadSchoolXml(const char * Conf_File_Name)
{
TiXmlDocument doc;
if(!doc.LoadFile(Conf_File_Name)
{
cout<<"LoadFile 失败"<<endl;
return ;
}

//root节点
TiXmlElement * rootElement = doc.FirstChild("School");
cout<<"rootName = "<<rootElement->Value()<<endl;

//class节点
TiXmlElement * classElement = rootElement->FirstChildElement();
cout<<"classElement = "<<classElement->Value()<<endl;

//student节点
TiXmlElement * studentElement = classElement->FirstChildElement();
cout<<"studentElment = "<<studentElement->Value()<<endl;

for(;studentElement != NULL; studentElement = studentElement->NextSiblingElement())
{
TiXmlAttribute * attributeOfStudent = studentElement->FirstAttribute();
for(;arrtibuteOfStudent != NULL; attributeOfStudent = attributeOfStudent->Next())
{
// cout<<attributeOfStudent->Name()<<" = "<<attributeOfStudent->Value()<<endl;
string str1 = attributeOfStudent->Name();
string str2 = attributeOfStudent->Value();

Map[str1] = str2;
}

TiXmlElement *studentContactElement = studentElement->FirstChildElement();
for(;studentContactElement != NULL; studentContactElement = studentContactElement->NextSiblingElement())
{
string str1 = studentContactElement->Value();
string str2 = studentContactElement()->GetText();

Map[str1] = str2;
}
}
}

int main(int argc,char ** argv)
{
if(argc < 1)
{
cout<<"缺少参数"<<endl;
return -1;
}

map<string,string> Map
ReadSchoolXml(argv[1],Map);

map<string,string>::iterator it;
for(it = Map.begin(); it != Map.end(); it++)
{
cout<<it->first<<" = "<<it->second<<endl;
}
return 0;
}

g++ -o Test_XML tinyxml.cpp tinystr.cpp tinyxmlerror.cpp tinyxmlparser.cpp Test_XML.cpp -g

./Test_XML info.xml
out:
address = child
email = andycgli@tencent
name = tinyxml
number = 1234
phone = 13519141822
sex = man

Ex 2:

SERVERCONF.xml

<?xml version=" 1.0" encoding=" gb2312?>
<root>
<SERVER_IP>10.111.222.333</SERVER_IP>
<SERVER_PORT>30000</SERVER_PORT>
<FMODULE_NAME>First_Module</FMODULE_NAME>
<FMODULE_ID>00001</FMODULE_ID>
....
</root>

Tiny_XML.cpp

void doXML(const char * Conf_Name,map<string,string> & Map)
{
TiXmlDocument doc;
if(!doc.LoadFile(Conf_Name))
{
cout<<"LoadFile 错误<<endl;
return ;
}

TiXmlElement * RootElement = doc.RootElement();
TiXmlElement * AllElement = RootElement->FirstChirdElement();

for(; AllElement != NULL; AllElement = AllElement->NextSiblingElement())
{
TiXmlElement * nElement = AllElement->FirstChildElement();

string type = AllElement->Value()
string value = AllElement->GetText();
Map[type] = value;
}
}

int main(int argc,char ** argv)
{
if(argc != 2)
{
cout<<"参数错误"<<endl;
return -1;
}

map<string,string> Map;

doXML(argv[1],Map);

map<string,string>::iterator it;
for(it = Map.begin(); it != Map.end(); it++)
{
cout<<it->first<<" = "<<it->second<<endl;
}

return 0;
}

编译方法同上
Tiny_XML SRVERCONFIG.xml
out:
SERVER_IP = 10.111.222.333
SERVER_PORT = 30000
FMODULE_NAME = First_Module
FMODULE_ID = 00001

以此记录我进步的过程