IOS development: Get and Post methods in iPhone

IOS developmentUnderstanding iPhoneGetAndPostThis article uses a simple example to show how the iPhone usesGetAndPostRequest asp.net webservice.

Webservice

1. Create a webservice,

2. enable http get and http post in webconfig.

 
 

  
  
<webServices> 
  
  
    <protocols> 
  
  
        <add name="HttpSoap"/> 
  
  
        <add name="HttpPost"/> 
  
  
        <add name="HttpGet"/> 
  
  
        <add name="Documentation"/> 
  
  
    </protocols> 
  
  
</webServices> 
 
 

Iphone client call:

1. get method:

 
 

  
  
NSString *queryString =  
  
  
          [NSString stringWithFormat:  
  
  
    @“http://10.5.23.117:5111/Service1.asmx/HelloWorld?param=123%@“,  
  
  
    ipAddress.text];  
  
  
    NSURL *url = [NSURL URLWithString:queryString];  
  
  
    NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url];  
  
  
    [req addValue:@“text/xml; charset=utf-8” forHTTPHeaderField:@“Content-Type”];  
  
  
    [req addValue:0 forHTTPHeaderField:@“Content-Length”];  
  
  
    [req setHTTPMethod:@“GET”];  
  
  
    [activityIndicator startAnimating];  
  
  
    conn = [[NSURLConnection alloc] initWithRequest:req delegate:self];  
  
  
    if (conn) {  
  
  
        webData = [[NSMutableData data] retain];  
  
  
    } 
 
 

2. post method:

 
 

  
  
NSString *postString =@"123";    
  
  
    NSURL *url = [NSURL URLWithString:    
  
  
@“http://10.5.23.117:5111/Service1.asmx/HelloWorld2”];    
  
  
    NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url];    
  
  
    NSString *msgLength = [NSString stringWithFormat:@“%d”, [postString length]];    
  
  
    [req addValue:@“application/x-www-form-urlencoded”    
  
  
        forHTTPHeaderField:@“Content-Type”];    
  
  
    [req addValue:msgLength forHTTPHeaderField:@“Content-Length”];   
  
  
    [req setHTTPMethod:@“POST”];   
  
  
    [req setHTTPBody: [postString dataUsingEncoding:NSUTF8StringEncoding]];   
  
  
    [activityIndicator startAnimating];  
  
  
    conn = [[NSURLConnection alloc] initWithRequest:req delegate:self];  
  
  
    if (conn) {    
  
  
        webData = [[NSMutableData data] retain];    
  
  
    }  
 
 

Summary:IOS developmentUnderstanding iPhoneGetAndPostThis article is helpful to you!