IOS开发之Post 方式获取服务器数据

//1.创建post方式的 参数字符串url

+(NSString *)createPostURL:(NSMutableDictionary *)params
{
    NSString *postString=@"";
    for(NSString *key in [params allKeys])
    {
        NSString *value=[params objectForKey:key];
        postString=[postString stringByAppendingFormat:@"%@=%@&",key,value];
    }
    if([postString length]>1)
    {
        postString=[postString substringToIndex:[postString length]-1];
    }
    return postString;
}



//2.zwh -自定义的通用方法－－－－－－post数据回服务器，并返回结果数据集

+(NSData *)getResultDataByPost:(NSMutableDictionary *)params
{

    NSString *postURL=[Utility createPostURL:params];
    NSError *error;
    NSURLResponse *theResponse;
    NSMutableURLRequest *theRequest=[NSMutableURLRequest requestWithURL:[NSURL URLWithString:BASEURL]];
    [theRequest setHTTPMethod:@"POST"];
    [theRequest setHTTPBody:[postURL dataUsingEncoding:NSUTF8StringEncoding]];