我们经常遇到后台编写的是以 wsdl 的接口地址，遇到这样的接口我们应该怎么处理的？
首先用浏览器直接打开该地址

打开地址.png

从上图中可以看出webservice请求的相关信息，这里我们需要知道targetNamespace（命名空间）

拼接含有参数的soap字符串：

+(NSString *)requestfordata:(NSArray *)data andrequestname :(NSString *)name{
    
    NSMutableData *postBody = [NSMutableData data];
    
    [postBody appendData:[[NSString stringWithFormat:@"<%@ xmlns=\"****命名空间*****\" id=\"o0\" c:root=\"1\">",name] dataUsingEncoding:NSUTF8StringEncoding]];
    for(int i =0;i<data.count;i++)
    {
        
        [postBody appendData:[[NSString stringWithFormat:@"%@%@%@",[[data objectAtIndex:i]objectAtIndex:0],[[data objectAtIndex:i]objectAtIndex:1],[[data objectAtIndex:i]objectAtIndex:2]] dataUsingEncoding:NSUTF8StringEncoding]];
    }

    [postBody appendData:[[NSString stringWithFormat:@"</%@>", name] dataUsingEncoding:NSUTF8StringEncoding]];
    
    NSString * xmlStr=[[NSString alloc]initWithData:postBody encoding:NSUTF8StringEncoding];
    
    NSString *str = [NSString stringWithFormat:@"<v:Envelope xmlns:i=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:d=\"http://www.w3.org/2001/XMLSchema\" xmlns:c=\"http://schemas.xmlsoap.org/soap/encoding/\" xmlns:v=\"http://schemas.xmlsoap.org/soap/envelope/\">"
                            "<v:Header />"
                            "<v:Body>""%@"
                            "</v:Body>"
                            "</v:Envelope>", xmlStr];
    
    return str;
}

调用网络请求：

+ (NSDictionary *)postRequestWithUrl:(NSString *)hostUrl andSoapUrl:(NSString *)url{
    
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    manager.responseSerializer = [AFXMLParserResponseSerializer serializer];
    
    // 设置请求超时时间
    manager.requestSerializer.timeoutInterval = 30;
    
    // 返回NSData
    manager.responseSerializer = [AFHTTPResponseSerializer serializer];
    
    // 设置请求头，也可以不设置
    [manager.requestSerializer setValue:@"application/soap+xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
    [manager.requestSerializer setValue:[NSString stringWithFormat:@"%zd", url.length] forHTTPHeaderField:@"Content-Length"];
    
    // 设置HTTPBody
    [manager.requestSerializer setQueryStringSerializationWithBlock:^NSString *(NSURLRequest *request, NSDictionary *parameters, NSError *__autoreleasing *error) {
        return url;
    }];
    
    __block NSDictionary *dict ;
    [manager POST:hostUrl parameters:url success:^(NSURLSessionDataTask * _Nonnull task, id  _Nonnull responseObject) {
        // 把返回的二进制数据转为字符串
        NSString *result = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
        
        // 利用正则表达式取出<ns1:out></ns1:out>之间的字符串
        NSRegularExpression *regular = [[NSRegularExpression alloc] initWithPattern:@"(?<=ns1:out\\>).*(?=</ns1:out)" options:NSRegularExpressionCaseInsensitive error:nil];
        
        for (NSTextCheckingResult *checkingResult in [regular matchesInString:result options:0 range:NSMakeRange(0, result.length)]) {
            
            // 得到字典
            dict = [NSJSONSerialization JSONObjectWithData:[[result substringWithRange:checkingResult.range] dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingMutableLeaves error:nil];
        }
        
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        dict = [NSDictionary dictionaryWithObjectsAndKeys:
               @"-1", @"code",
               @"亲，您当前的网络不给力~", @"message",
               nil];
    }];
    
    while (!dict) {
        [NSThread sleepForTimeInterval:0.5];
    }

    return dict;
}

现在就能够按照正常的请求方式解析得到数据了.....