如何从plist中检索字符串？

Question

我在xcode中有一个名为“config.plist”的plist，我试图检索寄存器url（key：reg）但是当我打印出那个显示空值的结果时？

这是我的代码，用于检索字符串..请为我的plist结构引用图片。

NSMutableURLRequest *request =[[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString: [[_config objectForKey:@"URL"] objectForKey:@"reg"]]];

Answer 1

NSString *plist=[[NSBundle mainBundle] pathForResource:@"config" ofType:@"plist"];
NSDictionary *dict=[[NSDictionary alloc] initWithContentsOfFile:plist];
NSString *stringValue=dict[@"URL"][@"reg"];

编辑：了解以下内容非常重要：

上述dict本身就是objectForKey:@"Root"

而我/我们试图通过[@"Root"][@"URL"][@"reg"]查找不存在的内容。

因此，为了便于使用namingConventions（它存储的内容），它应该是：

NSString *plist=[[NSBundle mainBundle] pathForResource:@"config" ofType:@"plist"];
NSDictionary *rootDict=[[NSDictionary alloc] initWithContentsOfFile:plist];
NSString *stringValue=dict[@"URL"][@"reg"];

或者，甚至

NSString *plist=[[NSBundle mainBundle] pathForResource:@"config" ofType:@"plist"];
NSString *stringValue=[[NSDictionary alloc] initWithContentsOfFile:plist][@"URL"][@"reg"];

Answer 2

尝试

NSString *path = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0] stringByAppendingPathComponent:@"config.plist"]; 
NSDictionary *dictionary = [[NSDictionary alloc] initWithContentsOfFile:path];
NSString *result = [[[dictionary objectForKey:@"Root"] objectForKey:@"URL"]objectForKey:@"reg"];

资源的

编辑：

NSString *path = [[NSBundle mainBundle] pathForResource:@"config" ofType:@"plist"];

Answer 3

    NSString *plist=[[NSBundle mainBundle] pathForResource:@"config" ofType:@"plist"];
    NSLog(@"path%@",plist);
    NSDictionary *dict=[[NSDictionary alloc] initWithContentsOfFile:plist];
    NSLog(@"d%@",dict);
    NSString *stringValue=[[dict objectForKey:@"URL"] valueForKey:@"reg"];

这件事对我有用。谢谢你的帮助

Answer 4

试用此代码

NSString *plistFilePath=[[NSBundle mainBundle] pathForResource:@"config" ofType:@"plist"];
NSDictionary *urlDictionary=[[NSDictionary alloc] initWithContentsOfFile:plistFilePath];
NSString *urlString=[[urlDictionary objectForKey:@"URL"] valueForKey:@"reg"];