IOS如何使用POST、GET、DELETE、PUT Rest Api

Question

我正在开发一个连接到Rest API的应用程序，目前为止我只使用以下代码进行了GET请求：

//Start login process
NSString *emailstring = email.text;
NSString *passstring = pass.text;

// Create the URL from a string.
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"http://www.myserver.com/Rest/API/users?format=json&email=%@&password=%@",emailstring,passstring]];
NSLog(@"%@",url);

// Create a request object using the URL.
NSURLRequest *request = [NSURLRequest requestWithURL:url];

// Prepare for the response back from the server    
NSHTTPURLResponse *response = nil;
NSError *error = nil;

// Send a synchronous request to the server (i.e. sit and wait for the response)
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSLog(@"Reponse from web:%@", response);

// Check if an error occurred    
if (error != nil) {
    NSLog(@"%@", [error localizedDescription]);
    // Do something to handle/advise user.

    UIAlertView *message = [[UIAlertView alloc] initWithTitle:@"Login error"
                                                      message:@""
                                                     delegate:nil
                                            cancelButtonTitle:@"OK"
                                            otherButtonTitles:nil];
    [message show];

}

else {

    // Convert the response data to a string.
    NSString *responseString = [[NSString alloc] initWithData:responseData  encoding:NSUTF8StringEncoding];

    // View the data returned - should be ready for parsing.
    NSLog(@"%@", responseString);

    // Add data to a Plist file for next time
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *path = [documentsDirectory stringByAppendingPathComponent:@"login.plist"];

    NSArray *values = [[NSArray alloc] initWithObjects:emailstring,passstring,@"IDtest",nil];
    [values writeToFile:path atomically:YES];
    [values release];


    [self dismissModalViewControllerAnimated:YES];
}

这段代码只适用于GET请求。我看到有很多框架（例如RestKit等），但是对于其他请求我有点迷失！那么，为iOS应用程序进行POST DELETE PUT请求的最佳解决方案是什么？

- Ben

Answer 1

这段代码类似，但是使用了NSMutableRequest类。您可以设置httpbody和其他参数与服务器通信。

请查看文档：https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSMutableURLRequest_Class/Reference/Reference.html 要发布内容，只需设置setHTTPMethod:@"POST"并使用setHTTPBody：分配要发布的数据。

- J2theC