-5 
<?xml version="1.0"?>
<Mytrip>
    <start_time>06/06/2013 09:00:00 AM</start_time>
    <end_time>06/06/2013 09:30:00 AM</end_time>      
    <start_address> 12 NGO, Roseville, Mp</start_address> 
    <start_gps>+40.689060,-74.044636</start_gps>
    <end_address>8 STE stree, Roseville, MP</end_address>
    <end_gps>+42.689060, -72.044636</end_gps>
    <duration>00:00:00:00</duration>
    <label>Roseville Trip</label>
    <route>
        <point>
            <gps>+40.689060,-74.044636</gps>
            <speed>1.2 Miles/Hr</speed>
        </point>
        <point>
            <gps>+41.689060,-74.044636</gps>
            <speed>5.0 Miles/Hr</speed>
        </point>
   </route>
</Mytrip>

我想创建以上格式的 XML 文件.. 在这一点上- 可以是多种方式，我从我的数据库中获取数据..

  

4

2 回答 2

3

正如许多人建议的那样，您可以使用第三方库来做到这一点。有关如何使用 GDataXML 执行此操作的示例。

首先创建适合保存数据的自定义对象。识别节点。这里有两个节点

  1. 旅行
  2. 观点

为它们创建模型类。为了简单起见，我把它们都做成了字符串。理想情况下，最好包括时间NSDate和坐标CLLocation以及持续时间（以秒为单位）。

@interface Trip : NSObject

@property (nonatomic, copy) NSString *label;

@property (nonatomic, copy) NSString *start_address;
@property (nonatomic, copy) NSString *end_address;

@property (nonatomic, copy) NSString *start_time;
@property (nonatomic, copy) NSString *end_time;

@property (nonatomic, copy) NSString *start_gps;
@property (nonatomic, copy) NSString *end_gps;

@property (nonatomic, copy) NSString *duration;

@property (nonatomic, strong) NSArray *points;

- (GDataXMLElement *)XMLNode;
- (NSString *)XMLString;

.m 文件

@implementation Trip

- (GDataXMLElement *)XMLNode{

    GDataXMLElement *tripNode = [GDataXMLElement elementWithName:@"Mytrip"];

    GDataXMLElement *startTimeElement = [GDataXMLElement elementWithName:@"start_time" stringValue:self.start_time];
    [tripNode addChild:startTimeElement];
    GDataXMLElement *endTimeElement = [GDataXMLElement elementWithName:@"end_time" stringValue:self.end_time];
    [tripNode addChild:endTimeElement];

    GDataXMLElement *startAddressElement = [GDataXMLElement elementWithName:@"start_address" stringValue:self.start_address];
    [tripNode addChild:startAddressElement];
    GDataXMLElement *endAddressElement = [GDataXMLElement elementWithName:@"end_address" stringValue:self.end_address];
    [tripNode addChild:endAddressElement];

    GDataXMLElement *startGpsElement = [GDataXMLElement elementWithName:@"start_gps" stringValue:self.start_gps];
    [tripNode addChild:startGpsElement];
    GDataXMLElement *endGpsElement = [GDataXMLElement elementWithName:@"end_gps" stringValue:self.end_gps];
    [tripNode addChild:endGpsElement];

    GDataXMLElement *durationElement = [GDataXMLElement elementWithName:@"duration" stringValue:self.duration];
    [tripNode addChild:durationElement];

    GDataXMLElement *labelElement = [GDataXMLElement elementWithName:@"label" stringValue:self.label];
    [tripNode addChild:labelElement];

    GDataXMLElement *routeNode = [GDataXMLElement elementWithName:@"route"];

    for (RoutePoint *point in self.points) {
        GDataXMLElement *pointNode = [point XMLNode];
        [routeNode addChild:pointNode];
    }

    [tripNode addChild:routeNode];

    return tripNode;
}

- (NSString *)XMLString{
    return [[self XMLNode] XMLString];
}

Route 点也一样

@interface RoutePoint : NSObject

@property (nonatomic, strong) NSString *gps;
@property (nonatomic, copy) NSString *speed;

- (GDataXMLElement *)XMLNode;
- (NSString *)XMLString;

.m 文件

@implementation RoutePoint

- (GDataXMLElement *)XMLNode{

    GDataXMLElement *pointNode = [GDataXMLElement elementWithName:@"point"];

    GDataXMLElement *gpsElement = [GDataXMLElement elementWithName:@"gps" stringValue:self.gps];
    GDataXMLElement *speedElement = [GDataXMLElement elementWithName:@"speed" stringValue:self.speed];

    [pointNode addChild:gpsElement];
    [pointNode addChild:speedElement];

    return pointNode;
}

- (NSString *)XMLString{
    return [[self XMLNode] XMLString];
}

创建 Trip 的实例填充值

Trip *trip = [Trip new];

trip.start_time = @"06/06/2013 09:00:00 AM";
trip.end_time = @"06/06/2013 09:30:00 AM";

trip.start_address = @"12 NGO, Roseville, Mp";
trip.end_address = @"8 STE stree, Roseville, MP";

trip.start_gps = @"+40.689060,-74.044636";
trip.end_gps = @"+42.689060, -72.044636";

trip.duration = @"00:00:00:00";
trip.label = @"Roseville Trip";

RoutePoint *point = [RoutePoint new];
point.gps = @"+40.689060,-74.044636";
point.speed = @"1.2 Miles/Hr";

trip.points = @[point];

NSLog(@"%@",[trip XMLString]);
于 2013-06-07T12:16:35.780 回答
-3

我想了想，有一段时间））有一些 XMLWriter 类，用于创建 XML。但是我没有足够的时间来了解它们是如何工作的。无论如何，XML 只是一个字符串，您可以将其转换为数据。在那种情况下，我自己创建了它））

NSMutableString *XMLString = [[NSMutableString alloc] init];
[XMLString appendString:@"<?xml version=\"1.0\"?> \n"];
[XMLString appendString:@"<scene> \n"];
//... etc..

你可以说这是一个不好的例子，但它对我有用）

于 2013-06-07T07:39:02.797 回答