iOS中发送xml给服务器

转载自：http://www.cocoachina.com/bbs/read.php?tid-456019.html

一、用URLSession请求

NSString *soapStr = [NSString stringWithFormat:@"<?xml version=\"1.0\" encoding=\"utf-8\"?>\
 <soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"\
 xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\
 <soap:Header>\
 </soap:Header>\
 <soap:Body>\
 <login xmlns=\"targetNameSpace地址/\">\
 <param1>test</param1>\
 <param2>test</param2>\
 </login>\
 </soap:Body>\
 </soap:Envelope>"];

 NSURL *url=[NSURL URLWithString:@"你自己wsdl文档中对应的endpoint address"];

 NSMutableURLRequest *request=[NSMutableURLRequest requestWithURL:url];

 // 访问方式
 [request setHTTPMethod:@"POST"];

 // 设置请求头(请求头也可以不设置，前两个设不设置都一样，应该默认的，但是SOAPAction我怎么都设置不对，不设置也可以，干脆不设置了)
 // [request addValue:@"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
//  [request addValue:[NSString stringWithFormat:@"%zd", soapStr.length] forHTTPHeaderField:@"Content-Length"];
 //    [request addValue:@"nameSpace/methodName" forHTTPHeaderField:@"SOAPAction"];

 // body内容
 [request setHTTPBody:[soapStr dataUsingEncoding:NSUTF8StringEncoding]];

 NSURLSession *session = [NSURLSession sharedSession];

 NSURLSessionDataTask *task = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
 NSString *result = [[NSString alloc] initWithData:data  encoding:NSUTF8StringEncoding];

 WJLog(@"进入成功回调Session-----结果：%@----请求地址：%@", result, response.URL);

 if (error) {
 WJLog(@"Session----失败----%@", error.localizedDescription);
 }
 }];

 [task resume];

二、用AFNetworking请求

一开始想用manager发请求，直接把XML当params发POST肯定是直接挂了，于是想要设置HTTPBody要不用AFHTTPRequestOperation？

NSMutableURLRequest *request=[NSMutableURLRequest requestWithURL:url];
 [request setHTTPMethod:@"POST"];
 [request setHTTPBody:[soapStr dataUsingEncoding:NSUTF8StringEncoding]];

 AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];

 // 设置返回数据格式
 operation.responseSerializer = [AFHTTPResponseSerializer serializer];

 [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation * _Nonnull operation, id  _Nonnull responseObject) {
 NSString *result = [[NSString alloc] initWithData:responseObject  encoding:NSUTF8StringEncoding];
 WJLog(@"AFN--成功--结果：%@----返回数据%@", result, responseObject);
 } failure:^(AFHTTPRequestOperation * _Nonnull operation, NSError * _Nonnull error) {
 WJLog(@"AFN--失败--%@", error.localizedDescription);
 }];

 [operation start];

这一看感觉和NSURLSession没多大差别，还是想用manager，关键问题就在于设置request的HTTBbody为XML，但是AFHTTPSessionManager已经把request封装了，默认用的params，怎么改？于是想改动或者添加AFN内部方法，但是总感觉这样不好，万一更新库了又要搞一遍。于是想能否拦截这个request，或者通过manager.requestSerializer设置HTTPBody，敲set浏览一下没有HTTPBody字眼的，用KVC也不行，那样还是相当于把XML当params传了，伤心绝望之时看到这个方法
[manager.requestSerializer setQueryStringSerializationWithBlock:^NSString *(NSURLRequest *request, NSDictionary *parameters, NSError *__autoreleasing *error) {
   //
}]
一看里面有request 有 params 高兴了，说不定在这里能拦截，于是直接写
[manager.requestSerializer setQueryStringSerializationWithBlock:^NSString *(NSURLRequest *request, NSDictionary *parameters, NSError *__autoreleasing *error) {
    return soapStr;
}]，请求成功，高兴了。

接下来另一个问题了，简单封装一下，我收到的是二进制，所以把AFN封装成了个工具类，供大家参考，欢迎提出改进

/**
*  请求SOAP，返回NSData
*
*  @param url      请求地址
*  @param soapBody soap的XML中方法和参数段
*  @param success  成功block
*  @param failure  失败block
*/
?
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+ (void)SOAPData:(NSString *)url soapBody:(NSString *)soapBody success:(void (^)(id responseObject))success failure:(void(^)(NSError *error))failure {

    NSString *soapStr = [NSString stringWithFormat:
                         @"<?xml version=\"1.0\" encoding=\"utf-8\"?>\
                         <soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"\
                         xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\
                         <soap:Header>\
                         </soap:Header>\
                         <soap:Body>%@</soap:Body>\
                         </soap:Envelope>",soapBody];

    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", soapStr.length] forHTTPHeaderField:@"Content-Length"];

    // 设置HTTPBody
    [manager.requestSerializer setQueryStringSerializationWithBlock:^NSString *(NSURLRequest *request, NSDictionary *parameters, NSError *__autoreleasing *error) {
        return soapStr;
    }];

    [manager POST:url parameters:soapStr 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<return></return>之间的字符串
        NSRegularExpression *regular = [[NSRegularExpression alloc] initWithPattern:@"(?<=return\\>).*(?=</return)" options:NSRegularExpressionCaseInsensitive error:nil];

        NSDictionary *dict = [NSDictionary dictionary];
        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];
        }
        // 请求成功并且结果有值把结果传出去
        if (success && dict) {
            success(dict);
        }

    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        if (failure) {
            failure(error);
        }
    }];
}