如何通过iPhone中的控制台检查我的数据是否保存在Web服务器API上

Question

我有一个应用程序，通过在

textfields

中输入值并通过服务器获取响应，将数据发送到我的 Web 服务器 API。我编写了以下代码来将数据发送到服务器。我想从服务器接收 JSON 格式的数据。

这是我的.h 文件：

#import <UIKit/UIKit.h>


@interface apicontroller : UIViewController 
{
    IBOutlet UITextField *txtfirstName;
    IBOutlet UITextField *txtlast;
    IBOutlet UITextField *txtUserName;
    IBOutlet UITextField *txtPassword;
    IBOutlet UITextField *txtEmail;
    NSMutableData *webData;
    

}
@property (nonatomic,retain)UITextField *txtUserName;
@property(nonatomic,retain)UITextField *txtPassword;
@property (nonatomic,retain)UITextField *txtfirstName;
@property(nonatomic,retain)UITextField *txtlast;
@property(nonatomic,retain)UITextField *txtEmail;
@property(nonatomic,retain)NSMutableData *webData;

-(IBAction)click:(id)sender;


@end

这是我的 .m 文件：

#import "apicontroller.h"


@implementation apicontroller

-(void)sendRequest
{
    NSString *post = [NSString stringWithFormat:@"key1=%@&key2=%@&key3=%@&key4=%@&key5=%@",txtfirstName.text,txtlast.text,txtUserName.text,txtPassword.text,txtEmail.text];
    NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; 
    NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]]; 
    NSLog(@"%@",postLength);
    NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; 
    [request setURL:[NSURL URLWithString:@"http://192.168.0.68:91/JourneyMapperAPI?RequestType=Register&Command=NEW"]]; 
    [request setHTTPMethod:@"POST"]; 
    [request setValue:postLength forHTTPHeaderField:@"Content-Length"]; 
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; 
    [request setHTTPBody:postData];
    
    NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
    
    if (theConnection) {
        webData = [[NSMutableData data] retain];
        NSLog(@"%@",webData);
    }
    else 
    {
     
    }

}

-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response 
{   
    [webData setLength: 0]; 
} 

-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data 
{         
    [webData appendData:data]; 

} 

-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error 
{     
    [connection release];  
    [webData release]; 

} 


-(void)connectionDidFinishLoading:(NSURLConnection *)connection 
{      
    NSString *loginStatus = [[NSString alloc] initWithBytes: [webData mutableBytes] length:[webData length] encoding:NSUTF8StringEncoding]; 
    NSLog(@"%@",loginStatus);  
    //greeting.text = loginStatus;   
    [loginStatus release];           
    [connection release];  
    [webData release]; 
} 

-(IBAction)click:(id)sender
{
    NSString *first = txtfirstName.text;
    NSString *last = txtlast.text;
    NSString *user = txtUserName.text;
    NSString *pass = txtPassword.text;
    NSString *email = txtEmail.text;
    [self sendRequest];
    
}
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
    [txtfirstName resignFirstResponder];
    [txtlast resignFirstResponder];
    [txtUserName resignFirstResponder];
    [txtPassword resignFirstResponder];
    [txtEmail resignFirstResponder];
}


- (void)dealloc {
    [super dealloc];
}


@end

当我运行此代码并在

textfield

中输入值并单击按钮时，我在控制台上收到以下响应：

{"isError":true,"ErrorMessage":"名字为必填项。姓氏为必填项。密码为必填项。电子邮件为必填项。用户名为必填项。","Result":null,"ErrorCode":903}

但是我已经将所有参数传递给了API。 请帮我解决这个问题。

Answer 1

如果我看一下你的最后一个问题，你的服务器似乎需要 URL 中的所有数据：

 http://192.168.0.68:91/JourneyMapperAPI?RequestType=Register&Command=NEW&firstname=rocky&lastname=singh&Username=rocky14&Password=xxx&[email protected]

但是您在 URL 中发送部分请求，并在 HTTP 正文中发送部分请求作为 URL 编码数据。

此外，您可以使用非常通用的名称key1、key2、key3等，而不是特定的名称（名字、姓氏、用户名、密码等）

总的来说，问题很可能是您没有以服务器期望的格式发送请求。如果没有服务器 API 的描述，就很难真正查明代码中的问题。