我正在尝试从Objective C代码中为某个URL设置Http GET请求。无论我做什么,或者我使用哪个URL,我都会收到以下错误:
Connection Failed: Error Domain=NSURLErrorDomain
Code=-1000 "bad URL" UserInfo=0x755c440
{NSUnderlyingError=0x7561950 "bad URL", NSLocalizedDescription=bad URL}
我是iOS开发新手,所以我不确定我是否正确行事。我已经关注了苹果文档并在各种论坛中寻找答案,即便如此我也收到了这个错误。
这是我的代码:
NSString *url = [NSString stringWithFormat: @"http://example.com/api/%@/%@", str1, str2];
NSString *encodedUrl = [url stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding];
NSLog(@"URL - %@", encodedUrl); // Checking the url
NSMutableURLRequest *theRequest= [[NSMutableURLRequest alloc] init];
[theRequest setHTTPMethod:@"GET"];
[NSMutableURLRequest requestWithURL:[NSURL URLWithString:encodedUrl]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:10.0];
NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self startImmediately:YES];
任何建议都是最受欢迎的。
答案 0 :(得分:4)
您未初始化theRequest
。
如果您未将其返回值分配给变量,则此行不执行任何操作。
[NSMutableURLRequest requestWithURL:[NSURL URLWithString:encodedUrl]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:10.0];
这是你应该使用的代码:
NSString *url = [NSString stringWithFormat: @"http://example.com/api/%@/%@", str1, str2];
NSString *encodedUrl = [url stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding];
NSLog(@"URL - %@", encodedUrl); // Checking the url
NSMutableURLRequest *theRequest= [NSMutableURLRequest requestWithURL:[NSURL URLWithString:encodedUrl]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:10.0];
NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self startImmediately:YES];