如何在ios中发送没有正文的json POST请求?
问题描述:
我想送POST请求没有身在IOS如何在ios中发送没有正文的json POST请求?
我试过如下
NSString *url = [NSString stringWithFormat:@"Some URL"];
NSURL *URL = [NSURL URLWithString:[NSString stringWithFormat:@"%@",url]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:URL];
[request addValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request setHTTPMethod: @"POST"];
[NSURLConnection connectionWithRequest:request delegate:self];
我提示以下错误:
Error Domain=NSURLErrorDomain Code=-1004 "Could not connect to the server." UserInfo=0x15d62ed0
NSLocalizedDescription=Could not connect to the server.,
NSUnderlyingError=0x15e522a0 "Could not connect to the server."}
答
NSString *appurl=[NSString stringWithFormat:@"Some URL"];
appurl = [appurl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSMutableURLRequest *request=[NSMutableURLRequest requestWithURL:[NSURL URLWithString:appurl]];
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse: nil error: nil ];
NSString *returnString = [[NSString alloc] initWithData:returnData encoding: NSUTF8StringEncoding];
NSLog(@"%@",returnString);
OR
NSString *post =[NSString stringWithFormat:@"email=%@&pw=%@",[_txt_email.text lowercaseString],_txt_password.text];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:@"%d",[postData length]];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@login_new.php",app.Main_url]]];
[request setHTTPMethod:@"POST"];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody:postData];
NSError *error;
NSURLResponse *response;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *str=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSLog(@"%@",str);
+0
尝试第一个,但得到相同的错误 在第二个例子中,我们必须发送body.But我的要求是没有身体。 – Madhu 2014-09-20 09:28:15
+0
你可以试试我的第一个例子>>> – 2014-09-22 04:31:46
“Some URL “不是一个有效的URL!你有没有尝试向其他程序发布一些内容以确保其正常工作? – folkol 2014-09-20 09:13:26
嘿@Madhu检查我的答案。,,,, – 2014-09-20 09:21:42