字符串解析成XML

2023-07-07 20:23:11 浏览数 (1)

字符串

代码语言：javascript复制
***POP3
**LHTOOL
[工具(&LHTOOL)]
	[转换]^C^CLHTC
	[连接]^C^CLHBC

	[--]
[->全矩形]
	[矩形暗柱]^C^CLHWA
	[C暗柱]^C^CLHWC
	[柱]^C^CLHDZ
	[L暗柱]^C^CLHWL
	[T暗柱]^C^CLHWT
	[Z暗柱]^C^CLHWZ
	[TL暗柱]^C^CLHWJ
	[F暗柱]^C^CLHWF
	[暗柱]^C^CLHWS
	[<-计算]^C^CLHWE

XML

代码语言：javascript复制
<?xml version="1.0" ?>
<MyApp>
    <!-- Settings for MyApp -->
    <Messages name="工具(&LHTOOL)">
        <Welcome name="转换">LHTC</Welcome>
        <Farewell name="连接">CLHBC</Farewell>
		<Farewell>--</Farewell>
		<Farewell flag="chlid" name="->全矩形">
				<Farewell name="矩形暗柱">LHWA</Farewell>
				<Farewell name="C暗柱">LHWC</Farewell>
				<Farewell name="柱">LHDZ</Farewell>
				<Farewell name="L暗柱">LHWL</Farewell>
				<Farewell name="T暗柱">LHWT</Farewell>
				<Farewell name="Z暗柱">LHWZ</Farewell>
				<Farewell name="TL暗柱">LHWJ</Farewell>
				<Farewell name="F暗柱">LHWF</Farewell>
				<Farewell name="暗柱">LHWS</Farewell>
				<Farewell name="<-计算">LHWE</Farewell>	
		</Farewell>	
	</Messages>
</MyApp>
代码语言：javascript复制
<?xml version="1.0" encoding="UTF-8"?>
 <list>
     <emp id="2575">
         <name>黄海锋</name>
         <age>20</age>
         <gender>man</gender>
         <salary>12000</salary>
     </emp>
     <emp id="2576">
         <name>黄海川</name>
         <age>20</age>
         <gender>man</gender>
         <salary>12000</salary>
     </emp>
     <emp id="2577">
         <name>黄海兰</name>
         <age>20</age>
         <gender>man</gender>
         <salary>12000</salary>
     </emp>
     <emp id="2578">
         <name>黄海基</name>
         <age>20</age>
         <gender>man</gender>
         <salary>12000</salary>
     </emp>
 </list>

封装类

代码语言：javascript复制
// tutorial demo program
#include "stdafx.h"
#include "tinyxml.h"
 
// ----------------------------------------------------------------------
// STDOUT dump and indenting utility functions
// ----------------------------------------------------------------------
const unsigned int NUM_INDENTS_PER_SPACE=2;
 
const char * getIndent( unsigned int numIndents )
{
        static const char * pINDENT="                                        ";
        static const unsigned int LENGTH=strlen( pINDENT );
        unsigned int n=numIndents*NUM_INDENTS_PER_SPACE;
        if ( n > LENGTH ) n = LENGTH;
 
        return &pINDENT[ LENGTH-n ];
}
 
// same as getIndent but no " " at the end
const char * getIndentAlt( unsigned int numIndents )
{
        static const char * pINDENT="                                        ";
        static const unsigned int LENGTH=strlen( pINDENT );
        unsigned int n=numIndents*NUM_INDENTS_PER_SPACE;
        if ( n > LENGTH ) n = LENGTH;
 
        return &pINDENT[ LENGTH-n ];
}
 
int dump_attribs_to_stdout(TiXmlElement* pElement, unsigned int indent)
{
        if ( !pElement ) return 0;
 
        TiXmlAttribute* pAttrib=pElement->FirstAttribute();
        int i=0;
        int ival;
        double dval;
        const char* pIndent=getIndent(indent);
        printf("n");
        while (pAttrib)
        {
                 printf( "%s%s: value=[%s]", pIndent, pAttrib->Name(), pAttrib->Value());
 
                 if (pAttrib->QueryIntValue(&ival)==TIXML_SUCCESS)    printf( " int=%d", ival);
                 if (pAttrib->QueryDoubleValue(&dval)==TIXML_SUCCESS) printf( " d=%1.1f", dval);
                 printf( "n" );
                 i  ;
                 pAttrib=pAttrib->Next();
        }
        return i;        
}
 
void dump_to_stdout( TiXmlNode* pParent, unsigned int indent = 0 )
{
        if ( !pParent ) return;
 
        TiXmlNode* pChild;
        TiXmlText* pText;
        int t = pParent->Type();
        printf( "%s", getIndent(indent));
        int num;
 
        switch ( t )
        {
        case TiXmlNode::TINYXML_DOCUMENT:
                 printf( "Document" );
                 break;
 
        case TiXmlNode::TINYXML_ELEMENT:
                 printf( "Element [%s]", pParent->Value() );
                 num=dump_attribs_to_stdout(pParent->ToElement(), indent 1);
                 switch(num)
                 {
                          case 0:  printf( " (No attributes)"); break;
                          case 1:  printf( "%s1 attribute", getIndentAlt(indent)); break;
                          default: printf( "%s%d attributes", getIndentAlt(indent), num); break;
                 }
                 break;
 
        case TiXmlNode::TINYXML_COMMENT:
                 printf( "Comment: [%s]", pParent->Value());
                 break;
 
        case TiXmlNode::TINYXML_UNKNOWN:
                 printf( "Unknown" );
                 break;
 
        case TiXmlNode::TINYXML_TEXT:
                 pText = pParent->ToText();
                 printf( "Text: [%s]", pText->Value() );
                 break;
 
        case TiXmlNode::TINYXML_DECLARATION:
                 printf( "Declaration" );
                 break;
        default:
                 break;
        }
        printf( "n" );
        for ( pChild = pParent->FirstChild(); pChild != 0; pChild = pChild->NextSibling()) 
        {
                 dump_to_stdout( pChild, indent 1 );
        }
}
 
// load the named file and dump its structure to STDOUT
void dump_to_stdout(const char* pFilename)
{
        TiXmlDocument doc(pFilename);
        bool loadOkay = doc.LoadFile();
        if (loadOkay)
        {
                 printf("n%s:n", pFilename);
                 dump_to_stdout( &doc ); // defined later in the tutorial
        }
        else
        {
                 printf("Failed to load file "%s"n", pFilename);
        }
}
 
// ----------------------------------------------------------------------
// main() for printing files named on the command line
// ----------------------------------------------------------------------
int main(int argc, char* argv[])
{
        for (int i=1; i<argc; i  )
        {
                 dump_to_stdout(argv[i]);
        }
        return 0;
}
在命令行或者DOS窗口中运行，如下：

C:devtinyxml> Debugtinyxml_1.exe example1.xml
 
example1.xml:
Document
  Declaration
  Element [Hello]
 (No attributes)
    Text: [World]

main

代码语言：javascript复制
#include <iostream>
#include"tinyxml2.h"
#include <map>
using namespace std;
using namespace tinyxml2;

//核心代码，递归实现读取xml的节点
void GetElementValue(XMLElement *element , std::map<std::string, std::string> &itemID_value_map)
{
	for (XMLElement* currenteleElement = element->FirstChildElement(); currenteleElement; currenteleElement = currenteleElement->NextSiblingElement())
	{
		XMLElement* tmpele = currenteleElement;
		if (currenteleElement->GetText() != NULL)
		{
			cout << "ItemID = " << currenteleElement->Attribute("ItemID") << "---Value = " << currenteleElement->GetText() << endl;
			itemID_value_map[currenteleElement->Attribute("ItemID")] = currenteleElement->GetText();
		}
		//判断该节点是否为空，如果不为空则继续递归
		if (!tmpele->NoChildren())
			GetElementValue(tmpele,itemID_value_map);
	}
}

//递归读取xml文件中的节点，并且保存到map中
std::map<std::string,std::string> CycleReadAllNode(std::string xmlPath) 
{
	static std::map<std::string, std::string> itemID_value_map;
	itemID_value_map.clear();

	tinyxml2::XMLDocument xml;
	if (xml.LoadFile(xmlPath.c_str()) != XML_SUCCESS)
	{
		return itemID_value_map; //return empty map
	}
	tinyxml2::XMLElement* rootNode = xml.RootElement();
	if (rootNode == NULL) {
		return itemID_value_map; //return empty map
	}
	GetElementValue(rootNode, itemID_value_map);
	return itemID_value_map;
}


int main()
{
	std::map<std::string, std::string>  maps = CycleReadAllNode("ElectronicProduct.xml");
	//遍历map
	cout << "-----------------------begin 循环遍历节点------------------------" << endl;
	std::map<std::string, std::string>::iterator iter;
	for (iter = maps.begin(); iter != maps.end(); iter  )
	{
		std::cout << "itemId = " << (iter->first).c_str() << "-------value = " << (iter->second).c_str() << std::endl;
	}
	cout << "-----------------------end   循环遍历节点------------------------" << endl;
    return 0;
}

ElectronicProduct.xml

代码语言：javascript复制
自己需要写的ElectronicProduct.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<ElectronicProduct>
    <computer ItemID = "DELL">8000yuan</computer>
    <computer ItemID = "MAC PRO">16000yuan</computer>
    <pad ItemID = "ipadmin3">1600yuan</pad>
 
</ElectronicProduct>
代码语言：javascript复制
TiXmlDocument* myDocument ;

myDocument.Parse(xmlStr));

TiXmlElement* rootElement = myDocument.RootElement();

if (rootElement)
    {
        TiXmlElement* element = rootElement->FirstChildElement();

        if (element)
        {
        
            for (TiXmlNode* SubItem = rootElement->FirstChild();SubItem!=NULL;)
            {
                TiXmlElement* AppNameElement = SubItem->ToElement()->FirstChildElement();

                TiXmlElement* nameElement = AppNameElement->NextSiblingElement();
                TiXmlElement* ageElement = AppPermit_typeElement->NextSiblingElement();
                              
                              TiXmlElement* heightElement = AppPermit_typeElement->NextSiblingElement();

                              TiXmlElement* weightElement = AppPermit_typeElement->NextSiblingElement();

                printf("%s:t%sn", nameElement ->Value(), nameElement ->GetText());
                printf("%s:t%sn", ageElement ->Value(), ageElement ->GetText());
                printf("%s:t%sn", heightElement ->Value(), heightElement ->GetText());
                                printf("%s:t%sn", weightElement ->Value(), weightElement ->GetText());

                SubItem=SubItem->NextSibling();
            }
        }
    }
代码语言：javascript复制
TiXmlDocument myDocument;

        myDocument.Parse(xmlStr);

        TiXmlElement* rootElement = myDocument.RootElement();

        if (rootElement)
        {
            TiXmlElement* element = rootElement->FirstChildElement();

            if (element)
            {
                for (TiXmlNode* SubItem = rootElement->FirstChild();SubItem!=NULL;)
                {
                    TiXmlElement* ExtNameElement = SubItem->ToElement();

                    printf("%s:t%sn", NameElement->Value(), NameElement->GetText());
            
                    SubItem=SubItem->NextSibling();
                }
            }
        }
    }
xml map 遍历 递归 字符串

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