IOS开发之NSURL
来源：程序员人生 发布时间：2015-04-18 12:10:14 阅读次数：3433次
1:NSURL初始化方法:
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NSURL *url=[NSURL URLWithString:@"http://www.baidu.com?id=1"];
2:解决NSURL初始化失败的相干解决方案.
将传进来的NSString 进行 UTF8 转码便可.
1:针对 URLWithString 初始化失败的解决方案
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NSString *strLocalHtml = @"file:///Users/amarishuyi/Desktop/My IPhone Life/WebDeveloper/WebPlug-in/ExtEditor/DataPage/KMQT/Ext-HTMLEditor.html";
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strLocalHtml = [NSString stringWithFormat:@"%@?Value=%@",strLocalHtml,self.txtUrl.text];
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strLocalHtml= [strLocalHtml stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
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NSURL * url=[NSURL URLWithString:strLocalHtml];
2:针对 fileURLWithPath 初始化失败的解决方案
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self.filePathString = [self.filePathString stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
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NSURL *url = [NSURL fileURLWithPath:self.filePathString];
转码成功后 会自动 在字符串左边添加 "file:///"
3:NSURL 成功初始化后可以获得的参数 (摘自:NSURL 学习 )
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NSURL *url = [NSURL URLWithString: @"http://www.baidu.com/s?tn=baiduhome_pg&bs=NSRUL&f=8&rsv_bp=1&rsv_spt=1&wd=NSurl&inputT=2709"];
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NSLog(@"Scheme: %@", [url scheme]);
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NSLog(@"Host: %@", [url host]);
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NSLog(@"Port: %@", [url port]);
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NSLog(@"Path: %@", [url path]);
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NSLog(@"Relative path: %@", [url relativePath]);
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NSLog(@"Path components as array: %@", [url pathComponents]);
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NSLog(@"Parameter string: %@", [url parameterString]);
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NSLog(@"Query: %@", [url query]);
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NSLog(@"Fragment: %@", [url fragment]);
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NSLog(@"User: %@", [url user]);
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NSLog(@"Password: %@", [url password]);
结果以下:
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2012-03⑶1 18:22:20.904 SmallDemoList[5473:11603] 12131232
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2012-03⑶1 18:22:20.907 SmallDemoList[5473:11603] Scheme: http
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2012-03⑶1 18:22:20.907 SmallDemoList[5473:11603] Host: www.baidu.com
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2012-03⑶1 18:22:20.907 SmallDemoList[5473:11603] Port: (null)
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2012-03⑶1 18:22:20.907 SmallDemoList[5473:11603] Path: /s
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2012-03⑶1 18:22:20.907 SmallDemoList[5473:11603] Relative path: /s
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2012-03⑶1 18:22:20.907 SmallDemoList[5473:11603] Path components as array: (
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"/",
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s
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)
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2012-03⑶1 18:22:20.916 SmallDemoList[5473:11603] Parameter string: (null)
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2012-03⑶1 18:22:20.917 SmallDemoList[5473:11603] Query: tn=baiduhome_pg&bs=NSRUL&f=8&rsv_bp=1&rsv_spt=1&wd=NSurl&inputT=2709
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2012-03⑶1 18:22:20.917 SmallDemoList[5473:11603] Fragment: (null)
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2012-03⑶1 18:22:20.917 SmallDemoList[5473:11603] User: (null)
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2012-03⑶1 18:22:20.917 SmallDemoList[5473:11603] Password: (null)
4:根据文件名称和文件后缀获得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:在程序包中的哪一个子目录中寻觅.
如果没有找到将会返回nil
找到后返回以下路径: file://localhost/Users/amarishuyi/Library/Application
Support/iPhone Simulator/5.1/Applications/FB0CDABC-D0E2⑷5FF-AA2C⑼59E8A65ADB4/SmallDemoList.app/KindEditor/examples/simple.html
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