ios - 如何在 objective-c 中将核心数据对象同步到 Web 服务
<p><p>我是 iOS 新手，在将核心数据与 Web 服务同步时遇到了问题。我的网络服务是这样的</p>
<pre><code>POST /webservice.asmx HTTP/1.1
Host: Url
Content-Type: text/xml; charset=utf-8
Content-Length: length
SOAPAction: "http://tempuri.org/Method"
<?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:Body>
<Method xmlns="http://tempuri.org/">
<key1>int</key1>
<key2>long</key2>
<key3>long</key3>
<key4>long</key4>
<key5>long</key5>
<key6>long</key6>
<key7>long</key7>
<key8>long</key8>
<key9>long</key9>
</Method>
</soap:Body>
</soap:Envelope>
</code></pre>
<p>这就是我在核心数据中保存数据的方式</p>
<pre><code> NSManagedObjectContext *context = ;
if (self.device) {
// Update existing device
;
;
;
;
;
;
;
;
;
} else {
// Create a new device
NSManagedObject *newDevice = ;
;
;
;
;
;
;
;
;
;
}
NSError *error = nil;
// Save the object to persistent store
if (!) {
NSLog(@"Can't Save! %@ %@", error, );
}
NSManagedObjectContext *managedObjectContext = ;
NSFetchRequest *fetchRequest = [ initWithEntityName:@"Entity Name"];
self.devices = [ mutableCopy];
</code></pre>
<p>这就是我通常使用代码将数据发布到 Web 服务的方式</p>
<pre><code> -(void)serverconnectionPost{
NSString *MethodString =@"?op=Method";
NSString *ServerfullString =;
int auid=0;
long regionid=;
long branch=;
long site=;
long auditnameid=;
long checkpoint=;
long methodofmeasume=;
long rdbchecklist=;
long UserId=;
NSString *soapMessage = [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:Body>"
"<Method xmlns=\"http://tempuri.org/\">"
"<Key1>%d</Key1>"
"<Key2>%ld</Key2>"
"<Key3>%ld</Key3>"
"<Key4>%ld</Key4>"
"<Key5>%ld</Key5>"
"<Key6>%ld</Key6>"
"<Key7>%ld</Key7>"
"<Key8>%ld</Key8>"
"<Key9>%ld</Key9>"
"</Method>"
"</soap:Body>"
"</soap:Envelope>",auid,regionid,branch,site,auditnameid,checkpoint,methodofmeasume,rdbchecklist,UserId];
NSData *postData = ;
NSString *postLength = ];
NSMutableURLRequest *request = [ init];
];
;
;
;
NSLog(@"URL = %@",request);
;
myNSUConnectionPOSTObj = [ initWithRequest:request delegate:self];
NSLog(@"Connection link =%@",myNSUConnectionPOSTObj);
if(myNSUConnectionPOSTObj) {
myNSMDataFromPOSTServer =[ init];
NSLog(@"Connection Successful");
} else {
NSLog(@"Connection could not be made");
}
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response{
;
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data{
;
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection{
NSXMLParser *myNSXMLParserPostObj=[initWithData:myNSMDataFromPOSTServer];
myNSXMLParserPostObj.delegate=self;
;
NSLog(@"%@",myNSXMLParserPostObj.parserError);
NSString *responseStringWithEncoded = [ initWithData: myNSMDataFromPOSTServer encoding:NSUTF8StringEncoding];
//NSLog(@"Response from Server : %@", responseStringWithEncoded);
NSAttributedString * attrStr = [ initWithData: options:@{ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType } documentAttributes:nil error:nil];
serverResponse.attributedText = attrStr;
NSString *Str =serverResponse.text;
NSLog(@"Server Response =%@",Str);
alert3 = [ initWithTitle:@"Message to display"
message:Str
delegate:self
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
;
}
-(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
myMutableStringPOSTObj=[initWithString:string];
NSLog(@"Array String: %@",myMutableStringPOSTObj);
NSData *dataPost = ;
responsePOSTdict = ;
NSLog(@"JSON DATA = %@",responsePOSTdict);
}
-(IBAction)joinbtnClick:(id)sender
{
;
}
</code></pre>
<p>注意 - ServerString 包含 Web 服务的 url。</p>
<p>我需要将一个值与网络服务同步，然后将其从核心数据中删除，然后再像同步一样将另一个值删除。</p>
<p>如何将核心数据同步到网络服务。有人做过吗？提前致谢!</p></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><p>您可以使用 <code>AFNetworking</code> 框架来处理所有与网络相关的操作，无论是解析 <code>JSON</code> 数据还是 <code>XML</code> 数据。要解析 <code>XML</code> 数据，您可以看到 <a href="https://stackoverflow.com/questions/20402034/parsing-xml-with-afnetworking" rel="noreferrer noopener nofollow">this</a>回答。</p>
<p>有关 AFNetworking 的更多信息，请参阅 <a href="https://github.com/AFNetworking/AFNetworking" rel="noreferrer noopener nofollow">this</a> .</p>
<p><strong>编辑:</strong>
关注 <a href="https://www.raywenderlich.com/15916/how-to-synchronize-core-data-with-a-web-service-part-1" rel="noreferrer noopener nofollow">this</a>教程以了解有关将核心数据发布到服务器的想法。</p></p>
<p style="font-size: 20px;">关于ios - 如何在 objective-c中将核心数据对象同步到 Web 服务，我们在Stack Overflow上找到一个类似的问题：
<a href="https://stackoverflow.com/questions/41163456/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/41163456/
</a>
</p>
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