1:NSURL初始化方法:

NSURL*url=[NSURLURLWithString:@"http://www.baidu.com?id=1"];

2:解决NSURL初始化失败的相关解决方案.

将传进来的NSString 进行 UTF8 转码即可.

1:针对 URLWithString 初始化失败的解决方案

NSString*strLocalHtml=@"file:///Users/amarishuyi/Desktop/MyIPhoneLife/WebDeveloper/WebPlug-in/ExtEditor/DataPage/KMQT/Ext-HTMLEditor.html"; strLocalHtml=[NSStringstringWithFormat:@"%@?Value=%@",strLocalHtml,self.txtUrl.text]; strLocalHtml=[strLocalHtmlstringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; NSURL*url=[NSURLURLWithString:strLocalHtml];

2:针对 fileURLWithPath 初始化失败的解决方案

self.filePathString=[self.filePathStringstringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

NSURL*url=[NSURLfileURLWithPath:self.filePathString];


转码成功后 会自动 在字符串左侧添加 "file:///"

3:NSURL 成功初始化后可以获取的参数NSURL*url=[NSURLURLWithString:@"http://www.baidu.com/s?tn=baiduhome_pg&bs=NSRUL&f=8&rsv_bp=1&rsv_spt=1&wd=NSurl&inputT=2709"]; NSLog(@"Scheme:%@",[urlscheme]);

NSLog(@"Host:%@",[urlhost]);

NSLog(@"Port:%@",[urlport]);

NSLog(@"Path:%@",[urlpath]);

NSLog(@"Relativepath:%@",[urlrelativePath]);

NSLog(@"Pathcomponentsasarray:%@",[urlpathComponents]);

NSLog(@"Parameterstring:%@",[urlparameterString]);

NSLog(@"Query:%@",[urlquery]);

NSLog(@"Fragment:%@",[urlfragment]);

NSLog(@"User:%@",[urluser]);

NSLog(@"Password:%@",[urlpassword]);

结果如下:

2012-03-3118:22:20.904SmallDemoList[5473:11603]12131232 2012-03-3118:22:20.907SmallDemoList[5473:11603]Scheme:http 2012-03-3118:22:20.907SmallDemoList[5473:11603]Host:www.baidu.com 2012-03-3118:22:20.907SmallDemoList[5473:11603]Port:(null) 2012-03-3118:22:20.907SmallDemoList[5473:11603]Path:/s 2012-03-3118:22:20.907SmallDemoList[5473:11603]Relativepath:/s 2012-03-3118:22:20.907SmallDemoList[5473:11603]Pathcomponentsasarray:("/", s ) 2012-03-3118:22:20.916SmallDemoList[5473:11603]Parameterstring:(null) 2012-03-3118:22:20.917SmallDemoList[5473:11603]Query:tn=baiduhome_pg&bs=NSRUL&f=8&rsv_bp=1&rsv_spt=1&wd=NSurl&inputT=2709

2012-03-3118:22:20.917SmallDemoList[5473:11603]Fragment:(null) 2012-03-3118:22:20.917SmallDemoList[5473:11603]User:(null) 2012-03-3118:22:20.917SmallDemoList[5473:11603]Password:(null)

4:根据文件名称和文件后缀获取程序包内容文件的路径

NSURL *urlKindEditor = [[NSBundlemainBundle]URLForResource:@"simple"withExtension:@"html"subdirectory:@"KindEditor/examples"];

URLForResource:文件名称

withExtension:文件后缀

subdirectory:在程序包中的哪个子目录中寻找.

如果没有找到将会返回nil

找到后返回如下路径:file://localhost/Users/amarishuyi/Library/Application%20Support/iPhone%20Simulator/5.1/Applications/FB0CDABC-D0E2-45FF-AA2C-959E8A65ADB4/SmallDemoList.app/KindEditor/examples/simple.html

5:对比两个URL 是否相等

[urlisEqual:[_audioPlayerurl]]