解析json數(shù)據(jù)

解析json數(shù)據(jù)

//找到json路徑

NSString *filePath = [[NSBundlemainBundle] pathForResource:@"us_box"ofType:@"json"];

//從路徑中獲取數(shù)據(jù)

NSData *data = [NSDatadataWithContentsOfFile:filePath];

//解析json------>轉(zhuǎn)換成NSDictionary或者是NSArray

//在iOS5.0之前解析json數(shù)據(jù)  使用第三方json解析工具：jsonKit/TouchJson/SBJson

//在iOS5.0之后------->使用NSJSONSerialization解析

NSError *error = nil;//NSError是一個指針的指針

NSDictionary *jasonDic = [NSJSONSerializationJSONObjectWithData:data options:NSJSONReadingMutableContainerserror:&error];

//    NSLog(@"%@",jasonDic);

//獲取所需要的數(shù)據(jù)，放入數(shù)組中

NSArray *arraySubjects = [jasonDic objectForKey:@"subjects"];

//定義一個可變數(shù)組

NSMutableArray *mArray = [NSMutableArrayarray];

//遍歷數(shù)組

for (NSDictionary *dic in arraySubjects) {

NSDictionary *dicSubject = [dic objectForKey:@"subject"];

//將字典中的數(shù)據(jù)提取出來，填充到MovieModel上

MovieModel *model = [[MovieModelalloc] init];

//從字典中獲取電影圖片

        model.p_w_picpathsDic = [dicSubject objectForKey:@"p_w_picpaths"];

//從字典中獲取電影名稱

        model.title = [dicSubject objectForKey:@"title"];

//從字典中獲取電影上映年份

        model.year = [dicSubject objectForKey:@"year"];

//從字典中獲取電影評分

        model.average = [[dicSubject objectForKey:@"rating"] objectForKey:@"average"];

//經(jīng)model添加到數(shù)組中

        [mArray addObject:model];

    }

//將數(shù)據(jù)放到_dataArray中

_dataArray = mArray;

//刷新TableView-----注意：如果使用的是網(wǎng)絡(luò)數(shù)據(jù)必須要刷新，只要數(shù)據(jù)源發(fā)生改變幾必須刷新數(shù)據(jù)

[_listTableViewreloadData];