NSXMLParser simple parsing example, NSXMLParser simple Parsing

NSXMLParser simple parsing example, NSXMLParser simple Parsing

This article uses the following types of XML as an example:

<? Xml version = "1.0" encoding = "UTF-8"?>

<Resources>

<String name = "e0"> incorrect password </string>

<String name = "e1"> the mobile phone number does not exist </string>

<String name = "e2"> the city is not found </string>

<String name = "e3"> parameter exception </string>

<String name = "e4"> fish stock is empty </string>

<String name = "e6"> the file is empty </string>

<String name = "e7"> the parameter is abnormal or empty </string>

<String name = "e8"> publishing failed </string>

<String name = "e10"> the token is abnormal. Log On again. </string>

<String name = "e11"> the fishing spot does not exist </string>

<String name = "e12"> fishing point id not found </string>

<String name = "e13"> incorrect fishing point id </string>

<String name = "e14"> failed to add to favorites </string>

<String name = "e15"> added to favorites </string>

<String name = "e16"> the longitude and latitude parameters are incorrect </string>

<String name = "e18"> the city cannot be blank </string>

<String name = "e17"> no more fishing spots </string>

<String name = "e19"> insertion failed </string>

<String name = "e20"> incorrect mobile phone number or verification code </string>

<String name = "e21"> parameter type error </string>

<String name = "e22"> data writing error </string>

</Resources>

-(Void) parserXMLFile

{

// Open xml and close the file after reading the File Content

NSString * path = [[NSBundle mainBundle] pathForResource: @ "error" ofType: @ "xml"];

NSFileHandle * file = [NSFileHandle fileHandleForReadingAtPath: path];

NSData * data = [file readDataToEndOfFile];

[File closeFile];

// Initialize the parsing Tool

NSXMLParser * m_parser = [[NSXMLParser alloc] initWithData: data];

// Set proxy

[M_parser setDelegate: self];

// Start parsing, set the parsing result flag, and execute

BOOL flag = [m_parser parse];

If (flag ){

QLLog (@ "resolution successful ");

} Else {

QLLog (@ "resolution failed ");

}

}

// Start Parsing

-(Void) parserDidStartDocument :( NSXMLParser *) parser

{

DicXML = [[NSMutableDictionary alloc] initWithCapacity: 10];

}

// Start mark

-(Void) parser :( NSXMLParser *) parser didStartElement :( NSString *) elementName namespaceURI :( NSString *) namespaceURI qualifiedName :( NSString *) qName attributes :( NSDictionary *) attributeDict

{

// QLLog (@ "elementName: % @ \ n namespaceURI: % @ \ n qName: % @ \ n attributeDic: % @", elementName, namespaceURI, qName, attributeDict );

If ([elementName isEqualToString: @ "string"]) {

KeyCode = [attributeDict objectForKey: @ "name"]; // error code

QLLog (@ "keyCode: % @", keyCode );

}

}

// End mark

-(Void) parser :( NSXMLParser *) parser didEndElement :( NSString *) elementName namespaceURI :( NSString *) namespaceURI qualifiedName :( NSString *) qName {

// QLLog (@ "end: elementName: % @ \ n namespaceURI: % @ \ n qName: % @ \ n", elementName, namespaceURI, qName );

}

// Input this method when there is a value in the node

-(Void) parser :( NSXMLParser *) parser foundCharacters :( NSString *) string

{

QLLog (@ "key: % @", keyCode );

QLLog (@ "value: % @", string); // error description

String = [string stringByReplacingOccurrencesOfString: @ "\ n" withString: @ ""];

String = [string stringByReplacingOccurrencesOfString: @ "" withString: @ ""];

If (keyCode. length & string. length ){

[DicXML setObject: string forKey: keyCode];

}

}

// Resolution ends

-(Void) parserDidEndDocument :( NSXMLParser *) parser

{

QLLog (@ "dicData: % @", dicXML );

}