XML解析之DOM详解及与SAX解析步骤的比较

  1 //
  2 //  ViewController.m
  3 //  XML(DOM解析)
  4 //
  5 //  Created by ma c on 16/3/19.
  6 //  Copyright (c) 2016年 姬凯鹏. All rights reserved.
  7 //
  8 
  9 #import "ViewController.h"
 10 #import "JKPTrainInfo.h"
 11 #import "GDataXMLNode.h"
 12 @interface ViewController ()<UITableViewDataSource>
 13 
 14 @property (nonatomic, strong) NSMutableArray * dataList;
 15 
 16 @property (nonatomic,strong) UITableView *tableView;
 17 
 18 @end
 19 
 20 @implementation ViewController
 21 
 22 - (void)viewDidLoad {
 23     [super viewDidLoad];
 24     // Do any additional setup after loading the view, typically from a nib.
 25     
 26     [self initUI];
 27     
 28     [self loadData];
 29 }
 30 
 31 
 32 #pragma mark -getter and setter methods
 33 
 34 - (NSMutableArray *)dataList {
 35     
 36     if (!_dataList) {
 37         _dataList = [NSMutableArray array];
 38     }
 39     return _dataList;
 40 }
 41 
 42 -(UITableView *)tableView
 43 {
 44     if (!_tableView) {
 45         
 46         _tableView = [[UITableView alloc]initWithFrame:self.view.bounds style:UITableViewStylePlain];
 47         
 48         _tableView.dataSource = self;
 49     }
 50     return _tableView;
 51 }
 52 
 53 #pragma mark - UITableView dataSource
 54 
 55 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
 56     
 57     return self.dataList.count;
 58 }
 59 
 60 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
 61     
 62     static NSString * identifiter = @"cellID";
 63     
 64     UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier:identifiter];
 65     
 66     if (!cell) {
 67         
 68         cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:identifiter];
 69     }
 70     JKPTrainInfo *JkpInfo = self.dataList[indexPath.row];
 71     
 72     cell.textLabel.text = JkpInfo.trainStation;
 73     
 74     cell.detailTextLabel.text = JkpInfo.arriveTime;
 75     
 76     return cell;
 77 }
 78 
 79 
 80 #pragma mark - event handle methods
 81 // 载入数据
 82 - (void)loadData
 83 {
 84     NSURL *url = [NSURL URLWithString:@"http://192.168.1.68/train.xml"];
 85     
 86     NSURLRequest *requst = [NSURLRequest requestWithURL:url];
 87     
 88     [NSURLConnection sendAsynchronousRequest:requst queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
 89         
 90         //根据数据生成xml解析文档
 91         GDataXMLDocument *gData = [[GDataXMLDocument alloc]initWithData:data error:nil];
 92         //获取xml根节点下所有子节点
 93         for (GDataXMLElement *element in gData.rootElement.children) {
 94             
 95             //获取子节点下的孙子节点
 96             for (GDataXMLElement * trainInfo in element.children) {
 97                 
 98                 //创建模型
 99                 JKPTrainInfo *info = [[JKPTrainInfo alloc]init];
100                 
101                 // 经检测 stringValue是数据 name是节点的名字  GDataXMLElement是节点下的数据部分
102     
103                 //即这个<trainStation>上海南（车次：T81\T80）</trainStation>
104                 for (GDataXMLElement *note in trainInfo.children) {
105                     
106                     [info setValue:note.stringValue forKey:note.name];
107                     
108 //                    NSLog(@"%@",note.stringValue);
109 //                    
110 //                    NSLog(@"-----------");
111 //                    
112 //                    NSLog(@"%@",note.name);
113                 }
114                 
115                 //GDataXMLNode *att 是XML文件中这个 <trainDetailInfo info="trainDetailInfo1" rowOrder="0" hasChanges="inserted">
116                 for (GDataXMLNode *att in trainInfo.attributes ) {
117                     
118                     [info setValue:att.stringValue forKey:att.name];
119                     
120                     NSLog(@"%@",att.stringValue);
121                     
122                     NSLog(@"-----------");
123                     
124                     NSLog(@"%@",att.name);
125 
126                 }
127                 //将模型加入到数据中
128                 [self.dataList addObject:info];
129             }
130             
131         }
132         //刷新数据 一定要在异步请求里面刷新数据 不然不好使
133         [self.tableView reloadData];
134 
135     }];
136 }
137 
138 //载入视图
139 - (void)initUI
140 {
141     [self.view addSubview:self.tableView];
142 }
143 - (void)didReceiveMemoryWarning {
144     [super didReceiveMemoryWarning];
145     // Dispose of any resources that can be recreated.
146 }
147 
148 @end

//
//  JKPTrainInfo.h
//  XML解析(SAX)练习
//
//  Created by ma c on 16/3/19.
//  Copyright (c) 2016年 姬凯鹏. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface JKPTrainInfo : NSObject
//解析数据
@property (nonatomic, copy) NSString * info;
@property (nonatomic, copy) NSString * rowOrder;
@property (nonatomic, copy) NSString * hasChanges;

@property (nonatomic, copy) NSString * trainStation;
@property (nonatomic, copy) NSString * arriveTime;
@property (nonatomic, copy) NSString * startTime;
@property (nonatomic, copy) NSString * KM;


@end