在iphone开发中，经常会遇到和服务器端交互数据，下面代码是向服务器端传递一个xml数据流，服务器端接受数据并返回一个xml数据类型。
iphone传递数据的代码：
-(void) postxml
{
//prepar request
NSString *urlString = [NSString stringWithFormat:@"path"];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:@"POST"];
//set headers
NSString *contentType = [NSString stringWithFormat:@"text/xml"];
[request addValue:contentType forHTTPHeaderField: @"Content-Type"];
//create the body
NSMutableData *postBody = [NSMutableData data];
[postBody appendData:[[NSString stringWithFormat:@"<Request Action=\"Login\">"] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[[NSString stringWithFormat:@"<Body>"] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[[NSString stringWithFormat:@"<Username>wangjun</Username>"] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[[NSString stringWithFormat:@"<Password>password</Password>"] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[[NSString stringWithFormat:@"<PlatformID>2</PlatformID>"] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[[NSString stringWithFormat:@"<PlatformVersion>3.1.3</PlatformVersion>"] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[[NSString stringWithFormat:@"<TaskViewerName>IP 1.3</TaskViewerName>"] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[[NSString stringWithFormat:@"<TaskViewerVersion>3</TaskViewerVersion>"] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[[NSString stringWithFormat:@"</Body>"] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[[NSString stringWithFormat:@"</Request>"] dataUsingEncoding:NSUTF8StringEncoding]];
//post
[request setHTTPBody:postBody];
//get response
NSHTTPURLResponse* urlResponse = nil;
NSError *error = [[NSError alloc] init];
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error];
NSString *result = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
NSLog(@"Response Code: %d", [urlResponse statusCode]);
if ([urlResponse statusCode] >= 200 && [urlResponse statusCode] < 300) {
NSLog(@"Response: %@", result);
}
}
运行结果是：
2010-09-09 13:19:25.190 PostXmlDemo1[685:307] 点击我了,哈哈
2010-09-09 13:19:28.450 PostXmlDemo1[685:307] Response Code: 200
2010-09-09 13:19:28.456 PostXmlDemo1[685:307] Response: <Response Action=’Login’><Cookie>DFGHJYUIILNBV$%^&*gghj^&IUF%^R^DFYUIHNVB</Cookie><Body><User Name=’用户名’ >< Avatar>登陆用户头像URL</Avatar></User><State>1< /State><Description>登陆成功后的描述信息。</Description>< /Body></Response>
iphone端源代码：http://easymorse-iphone.googlecode.com/svn/trunk/PostXmlDemo1/
服务器端代码：https://mp.myvsp.cn/svn/works/exam/prototype/trunk/iphonepost/
