ios [NSURL URLWithString:requestUrl relativeToURL:baseUrl]。如果requestUrl包含字符串“/User/Page”，则返回nil

Question

[NSURL URLWithString:requestUrl relativeToURL:baseUrl]

如果requestUrl包含'/User/page'，则返回nil。

​

如果你想做个测试。

NSString *reqUrl1 = @"/api/v3.1/User​/Page/";

NSString *reqUrl2 = @"api/v3.1/User​/Page";

NSString *reqUrl3 = @"/api/v3.1/User​/Page/";

NSString *reqUrl4 = @"/api/v3.1/Follow/Page";

NSString *reqUrl5 = @"/api/v3.1/User/Follow";

NSString *reqUrl6 = @"/api/v3.1/User/Pollow";

NSString *reqUrl7 = @"api/v3.2/User​/Page";

NSString *reqUrl8 = @"api/v3.2/User​/Page/aaa/bbb";

NSURL *url = [NSURL URLWithString:@"http://appgateway.xxx.xx-xxx.xxx.com/"];

NSString *lastUrl1 = [NSURL URLWithString:reqUrl1 relativeToURL:url].absoluteString;

NSString *lastUrl2 = [NSURL URLWithString:reqUrl2 relativeToURL:url].absoluteString;

NSString *lastUrl3 = [NSURL URLWithString:reqUrl3 relativeToURL:url].absoluteString;

NSString *lastUrl4 = [NSURL URLWithString:reqUrl4 relativeToURL:url].absoluteString;

NSString *lastUrl5 = [NSURL URLWithString:reqUrl5 relativeToURL:url].absoluteString;

NSString *lastUrl6 = [NSURL URLWithString:reqUrl6 relativeToURL:url].absoluteString;

NSString *lastUrl7 = [NSURL URLWithString:reqUrl7 relativeToURL:url].absoluteString;

NSString *lastUrl8 = [NSURL URLWithString:reqUrl8 relativeToURL:url].absoluteString;

NSLog(@"============");

// ------------------------------------------------------

(lldb) po lastUrl1

 nil

(lldb) po lastUrl2

 nil

(lldb) po lastUrl3

 nil

(lldb) po lastUrl4

http://appgateway.xxx.xx-xxx.xxx.com/api/v3.1/Follow/Page

(lldb) po lastUrl5

http://appgateway.xxx.xx-xxx.xxx.com/api/v3.1/User/Follow

(lldb) po lastUrl6

http://appgateway.xxx.xx-xxx.xxx.com/api/v3.1/User/Pollow

(lldb) po lastUrl7

 nil

(lldb) po lastUrl8

 nil

Answer 1

@Larme。对不起，我的例子有问题。第三个示例修改为"/api/v3.1/user/page“。那是胡说。

遵循您的代码。打印为

错误：http://appgateway.xxx.xx-xxx.xxx.com/ +/api/v3.1/用户/页面成功：http://appgateway.xxx.xx-xxx.xxx.com/api/v3.1/follow/page

但是我通过遍历字符发现了一个问题。

for (NSString *aRequestURL in requestURLs) {
        for(int i=0; i<aRequestURL.length; i++){
            unichar ch = [aRequestURL characterAtIndex: i];
            printf("%hu", ch);
        }
        NSLog(@"%@", aRequestURL);
}

在'/user‘和'/page’之间有一个奇怪的字符'8203‘。非常感谢你的代码。它开阔了我的思路

但是我不知道为什么'8203‘会影响URL生成