iPhone开发之Json数据的解析
iPhone开发之Json数据的解析
网络中数据的传输往往是以Json或XML格式进行的,如新浪微博、腾讯微博、人人网等。今天主要介绍一下ios下Json数据的解析。
首先是使用TouchJson进行解析:
TouchJson点击下载
首先导入
将Source文件加下的所以文件导入工程,在合适的位置添加CJSONDeserializer.h头文件。
代码:
- NSString *jsonStr = <p class="p1">@"{\"customer\":[{\"name\":\"roamer\",\"ycount\":\"232.4\",\"sumcount\":\"322.3\"},{\"name\":\"<span class="s1">王三</span>\",\"ycount\":\"221.2\",\"sumcount\":\"1123.2\"},{\"name\":\"<span class="s1">李四</span>\",\"ycount\":\"1221.2\",\"sumcount\":\"12123.2\"}]}"<span class="s2">;</span></p>;
- NSData *jsonData = [jsonStr dataUsingEncoding:NSUTF8StringEncoding];
- NSError *error;
- NSMutableDictionary *root = [[CJSONDeserializer deserializer] deserialize:jsonData error:&error];
- NSLog(@"Customers:%@", root);
- NSMutableArray *customers = [root objectForKey:@"customer"];
- NSString *jsonTextStr = @"姓名:\n";
- for (NSMutableDictionary *customer in customers) {
- NSString *name = [customer objectForKey:@"name"];
- name = [name stringByAppendingString:@"\n"];
- jsonTextStr = [jsonTextStr stringByAppendingString:name];
- NSLog(@"customer:%@",[customer objectForKey:@"name"]);
- }
- Customers:{
- customer = (
- {
- name = roamer;
- sumcount = "322.3";
- ycount = "232.4";
- },
- {
- name = "\U738b\U4e09";
- sumcount = "1123.2";
- ycount = "221.2";
- },
- {
- name = "\U674e\U56db";
- sumcount = "12123.2";
- ycount = "1221.2";
- }
- );
- }
- 2012-06-15 14:08:20.406 TouchJsonTest[1495:f803] customer:roamer
- 2012-06-15 14:08:20.406 TouchJsonTest[1495:f803] customer:王三
- 2012-06-15 14:08:20.406 TouchJsonTest[1495:f803] customer:李四
下面使用SBJson
SBJson下载
首先导入
将Classes文件加下的所以文件导入工程,在合适的位置添加SBJson.h头文件。
代码:
- //解析数据
- SBJsonParser *parser = [[SBJsonParser alloc] init];
- NSString *jsonStr = <p class="p1">@"{\"customer\":[{\"name\":\"roamer\",\"ycount\":\"232.4\",\"sumcount\":\"322.3\"},{\"name\":\"<span class="s1">王三</span>\",\"ycount\":\"221.2\",\"sumcount\":\"1123.2\"},{\"name\":\"<span class="s1">李四</span>\",\"ycount\":\"1221.2\",\"sumcount\":\"12123.2\"}]}"<span class="s2">;</span></p>
- NSError *error = nil;
- NSMutableDictionary *root = [[NSMutableDictionary alloc] initWithDictionary:[parser objectWithString:jsonStr error:&error]];
- //转换代码 不然会带来中文问题,诸如加()、:变成 = 等乱码问题
- SBJsonWriter *jsonWrite = [[SBJsonWriter alloc] init];
- NSString *jsonString = [jsonWrite stringWithObject:root];
- NSLog(@"JsonString:%@", jsonString);
- [jsonWrite release];
- NSMutableArray *customers = [root objectForKey:@"customer"];
- NSLog(@"Customers:%@", customers);
- for (NSMutableDictionary *customer in customers) {
- NSLog(@"Customer-name:%@", [customer objectForKey:@"name"]);
- }
- [self.jsonData setText:@"解析完成"];
- [self.parseBtn setTitle:@"Done" forState:UIControlStateNormal];
使用TouchJson和SBJson都可以快速的完成Json数据的解析,两者使用起来都比较简单,但TouchJson性能更好一些推荐使用。
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