iOS编程将xml转为object使用
浏览数：45 /
时间：2015年06月11日
xml文件结构如下：
<?xml version="1.0" standalone="no"?>
<root>
<status>
<code>0</code>
<msg>正确</msg>
</status>
<data>
<picture_num>6</picture_num>
<picture_list>
<picture_name>img1</picture_name>
<picture_scope>1</picture_scope>
<picture_sign>da16641a9dd3d0ed099ac04c6823826c7bde5d61</picture_sign>
<is_cover>0</is_cover>
<width>1920</width>
<height>1200</height>
<img_src>http://192.168.40.1/01.jpg</img_src>
<m_width>592</m_width>
<m_height>370</m_height>
<pic_big_src>http://192.168.40.1/01.jpg</pic_big_src>
</picture_list>
<picture_list>
<picture_name>img2</picture_name>
<picture_scope>1</picture_scope>
<picture_sign>7361946e8bcf21193817d71425f2bf78fb25b360</picture_sign>
<is_cover>0</is_cover>
<width>1920</width>
<height>1200</height>
<img_src>http://192.168.40.1/02.jpg</img_src>
<m_width>592</m_width>
<m_height>370</m_height>
<pic_big_src>http://192.168.40.1/02.jpg</pic_big_src>
</picture_list>
<picture_list>
<picture_name>img3</picture_name>
<picture_scope>1</picture_scope>
<picture_sign>c43df3a2be33ec2b9d0c358f9cee061f50d68460</picture_sign>
<is_cover>0</is_cover>
<width>1920</width>
<height>1200</height>
<img_src>http://192.168.40.1/03.jpg</img_src>
<m_width>592</m_width>
<m_height>370</m_height>
<pic_big_src>http://192.168.40.1/03.jpg</pic_big_src>
</picture_list>
<picture_list>
<picture_name>img4</picture_name>
<picture_scope>1</picture_scope>
<picture_sign>d6cae9083ba9d7f35dc1ce5721f30cf184600c40</picture_sign>
<is_cover>0</is_cover>
<width>1920</width>
<height>1200</height>
<img_src>http://192.168.40.1/04.jpg</img_src>
<m_width>592</m_width>
<m_height>370</m_height>
<pic_big_src>http://192.168.40.1/04.jpg</pic_big_src>
</picture_list>
<picture_list>
<picture_name>img5</picture_name>
<picture_scope>1</picture_scope>
<picture_sign>697d423ae23f0d523d532ef5fc040c812240c741</picture_sign>
<is_cover>0</is_cover>
<width>1920</width>
<height>1200</height>
<img_src>http://192.168.40.1/05.jpg</img_src>
<m_width>592</m_width>
<m_height>370</m_height>
<pic_big_src>http://192.168.40.1/05.jpg</pic_big_src>
</picture_list>
<picture_list>
<picture_name>img6</picture_name>
<picture_scope>1</picture_scope>
<picture_sign>6a97ad9e4e18f7176150617cb71120d33ce4df60</picture_sign>
<is_cover>0</is_cover>
<width>1920</width>
<height>1200</height>
<img_src>http://192.168.40.1/06.jpg</img_src>
<m_width>592</m_width>
<m_height>370</m_height>
<pic_big_src>http://192.168.40.1/06.jpg</pic_big_src>
</picture_list>
</data>
</root>
为了方便处理，想将这个xml的内容存入一个对象，通过观察分析xml的结构，写出相应的类：
在.h文件中：
#import <Foundation/Foundation.h> @interface Status : NSObject @property (strong,nonatomic) NSString *code; @property (strong,nonatomic) NSString *msg; @end @interface Data : NSObject @property (strong,nonatomic) NSString *picture_num; @property (nonatomic) NSMutableArray *picture_list; @end @interface Picture_list : NSObject @property (strong,nonatomic) NSString *picture_name; @property (strong,nonatomic) NSString *picture_scope; @property (strong,nonatomic) NSString *picture_sign; @property (strong,nonatomic) NSString *is_cover; @property (strong,nonatomic) NSString *width; @property (strong,nonatomic) NSString *height; @property (strong,nonatomic) NSString *img_src; @property (strong,nonatomic) NSString *m_width; @property (strong,nonatomic) NSString *m_height; @property (strong,nonatomic) NSString *pic_big_src; @end @interface ashampBaiduImageList : NSObject @property (strong,nonatomic) Status *status; @property (strong,nonatomic) Data *data; @end
在.m文件中：
#import "ashampBaiduImageList.h" @implementation ashampBaiduImageList -(instancetype)init { self=[super init]; self.data=[[Data alloc] init]; self.status=[[Status alloc] init]; return self; } @end @implementation Status -(instancetype)init { self=[super init]; self.code=[[NSString alloc] init]; self.msg=[[NSString alloc] init]; return self; } @end @implementation Data -(instancetype)init { self=[super init]; self.picture_num=[[NSString alloc] init]; self.picture_list=[[NSMutableArray alloc] init]; return self; } @end @implementation Picture_list -(instancetype)init { self=[super init]; self.picture_name=[[NSString alloc] init]; self.picture_scope=[[NSString alloc] init]; self.picture_sign=[[NSString alloc] init]; self.is_cover=[[NSString alloc] init]; self.width=[[NSString alloc] init]; self.height=[[NSString alloc] init]; self.img_src=[[NSString alloc] init]; self.m_width=[[NSString alloc] init]; self.m_height=[[NSString alloc] init]; self.pic_big_src=[[NSString alloc] init]; return self; } @end
完成了针对xml的类的设计后，设计XMLConvert类
在.h文件中：
#import <Foundation/Foundation.h> #import "ashampBaiduImageList.h" @interface ashampXMLConvert : NSObject<NSXMLParserDelegate> -(ashampBaiduImageList *)DeserializeXML:(NSString*)fromFile; @end
在.m文件中：
#import "ashampXMLConvert.h" @interface ashampXMLConvert () { //用于取xml节点的值 NSString *value; } @end @implementation ashampXMLConvert ashampBaiduImageList *_imagelist; Picture_list *pl; -(ashampBaiduImageList *)DeserializeXML:(NSString*)fromFile { _imagelist=[[ashampBaiduImageList alloc] init]; pl=[[Picture_list alloc] init]; NSArray *path= NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *filepath=[[NSString alloc] initWithString:[NSString stringWithFormat:@"%@/%@",path[0],fromFile]]; NSData *data=[NSData dataWithContentsOfFile:filepath]; NSXMLParser *parser=[[NSXMLParser alloc] initWithData:data]; [parser setShouldProcessNamespaces:NO]; [parser setShouldReportNamespacePrefixes:NO]; [parser setShouldResolveExternalEntities:NO]; [parser setDelegate:self]; [parser parse]; return _imagelist; } - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName { NSString *str=[[NSString alloc] initWithString:value]; if ([elementName isEqualToString:@"code"]) { _imagelist.status.code=str; NSLog(@"%@ %@",elementName ,str); } if ([elementName isEqualToString:@"msg"]) { _imagelist.status.msg=str; NSLog(@"%@ %@",elementName ,str); } if ([elementName isEqualToString:@"picture_num"]) { _imagelist.data.picture_num=str; NSLog(@"%@ %@",elementName ,str); } if ([elementName isEqualToString:@"picture_list"]) { [_imagelist.data.picture_list addObject:pl]; } if ([elementName isEqualToString:@"picture_name"]) { pl.picture_name=str; NSLog(@"%@ %@",elementName ,str); } if ([elementName isEqualToString:@"picture_scope"]) { pl.picture_scope=str; } if ([elementName isEqualToString:@"picture_sign"]) { pl.picture_sign=str; } if ([elementName isEqualToString:@"is_cover"]) { pl.is_cover=str; } if ([elementName isEqualToString:@"width"]) { pl.width=str; } if ([elementName isEqualToString:@"height"]) { pl.height=str; } if ([elementName isEqualToString:@"img_src"]) { pl.img_src=str; NSLog(@"%@ %@",elementName ,str); } if ([elementName isEqualToString:@"m_width"]) { pl.m_width=str; } if ([elementName isEqualToString:@"m_height"]) { pl.m_height=str; } if ([elementName isEqualToString:@"pic_big_src"]) { pl.pic_big_src=str; } } - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict { } - (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string { value=string; //NSLog(@"Value:%@",string); } @end
使用方法：
ashampXMLConvert *xc=[[ashampXMLConvert alloc] init]; ashampBaiduImageList *bi= [xc DeserializeXML:@"x.xml"];
对象bi即为所需，其包含了xml内所有的节点内容：
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