1.     NSString *reqData = @"Data=";
   
2.     NSData *postDatas = nil;
   
3.     NSString *urlPath = @"url";
   
4.    
   
5.     //组json字符串数据
   
6.     NSMutableDictionary *mulDic = [[[NSMutableDictionary alloc] init] autorelease];
   
7.     [mulDic setValue:@"P003" forKey:@"type"];
   
8.    
   
9.     //NSJSONSerialization 组json字符串
   
10.     if ([NSJSONSerialization isValidJSONObject:mulDic]) {
    
11.         
    
12.         postDatas = [NSJSONSerialization dataWithJSONObject:mulDic options:NSJSONWritingPrettyPrinted error:nil];
    
13.         NSString *str = [[NSString alloc] initWithData:postDatas encoding:NSUTF8StringEncoding];
    
14.         reqData = [reqData stringByAppendingString:str];
    
15.         NSLog(@"reqData:%@",reqData);
    
16.         
    
17.         //NSData *postData = [reqData dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
    
18.         postDatas = [NSData dataWithBytes:[reqData UTF8String] length:[reqData length]];
    
19.         
    
20.     }
    
21.    
    
22.     NSString *len = [NSString stringWithFormat:@"%d",(int)[postDatas length]];
    
23.     NSURL *url = [NSURL URLWithString:urlPath];
    
24.     NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
    
25.     [request setHTTPMethod:@"POST"];
    
26.     //[request setValue:@"*/*" forKey:@"accept"];
    
27.     //[request setValue:@"Keep-Alive" forKey:@"connection"];
    
28.     //[request setValue:@"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" forKey:@"user-agent"];
    
29.     //[request setValue:len forHTTPHeaderField:@"Content-Length"];
    
30.     //[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
    
31.     [request setHTTPBody:postDatas];
    
32.    
    
33.     NSData *retData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
    
34.     NSString *ret = [[NSString alloc] initWithData:retData encoding:NSUTF8StringEncoding];
    
35.     NSLog(@"%@",ret);<pre code_snippet_id="76577" snippet_file_name="blog_20131121_1_3817688" name="code" class="cpp">    //解析返回的数据JSON格式字符串
    
36.     NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:retData options:NSJSONReadingMutableLeaves error:nil];
    
37.     NSLog(@"%@",dic);</pre>
    
38. <pre></pre>
    
39. <pre></pre>
    
40. <pre></pre>
    

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1.     NSString *reqData = @"Data=";
   
2.     NSData *postDatas = nil;
   
3.     NSString *urlPath = @"url";
   
4.    
   
5.     //组json字符串数据
   
6.     NSMutableDictionary *mulDic = [[[NSMutableDictionary alloc] init] autorelease];
   
7.     [mulDic setValue:@"P003" forKey:@"type"];
   
8.    
   
9.     //NSJSONSerialization 组json字符串
   
10.     if ([NSJSONSerialization isValidJSONObject:mulDic]) {
    
11.         
    
12.         postDatas = [NSJSONSerialization dataWithJSONObject:mulDic options:NSJSONWritingPrettyPrinted error:nil];
    
13.         NSString *str = [[NSString alloc] initWithData:postDatas encoding:NSUTF8StringEncoding];
    
14.         reqData = [reqData stringByAppendingString:str];
    
15.         NSLog(@"reqData:%@",reqData);
    
16.         
    
17.         //NSData *postData = [reqData dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
    
18.         postDatas = [NSData dataWithBytes:[reqData UTF8String] length:[reqData length]];
    
19.         
    
20.     }
    
21.    
    
22.     NSString *len = [NSString stringWithFormat:@"%d",(int)[postDatas length]];
    
23.     NSURL *url = [NSURL URLWithString:urlPath];
    
24.     NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
    
25.     [request setHTTPMethod:@"POST"];
    
26.     //[request setValue:@"*/*" forKey:@"accept"];
    
27.     //[request setValue:@"Keep-Alive" forKey:@"connection"];
    
28.     //[request setValue:@"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" forKey:@"user-agent"];
    
29.     //[request setValue:len forHTTPHeaderField:@"Content-Length"];
    
30.     //[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
    
31.     [request setHTTPBody:postDatas];
    
32.    
    
33.     NSData *retData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
    
34.     NSString *ret = [[NSString alloc] initWithData:retData encoding:NSUTF8StringEncoding];
    
35.     NSLog(@"%@",ret);<pre code_snippet_id="76577" snippet_file_name="blog_20131121_1_3817688" name="code" class="cpp">    //解析返回的数据JSON格式字符串
    
36.     NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:retData options:NSJSONReadingMutableLeaves error:nil];
    
37.     NSLog(@"%@",dic);</pre>
    
38. <pre></pre>
    
39. <pre></pre>
    
40. <pre></pre>
    

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