如何在iOS中发布更多的图片上传代码参数？
您好我正在上传图像的PHP服务器，并成功上传与此代码的帮助
- (NSString*)uploadData:(NSData *)data toURL:(NSString *)urlStr:(NSString *)_userID { // File upload code adapted from http://www.cocoadev.com/index.pl?HTTPFileUpload // and http://www.cocoadev.com/index.pl?HTTPFileUploadSample NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; [request setURL:[NSURL URLWithString:urlStr]]; [request setHTTPMethod:@"POST"]; // NSString* = [NSString stringWithString:@"0xKhTmLbOuNdArY"]; NSString *stringBoundary = [NSString stringWithString:@"---------------------------14737809831466499882746641449"]; NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",stringBoundary]; [request addValue:contentType forHTTPHeaderField: @"Content-Type"]; NSMutableData *body = [NSMutableData data]; [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; // [body appendData:[[NSString stringWithFormat:@"userId=%@",_userID] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"userfile\"; filename=\"image%@.jpg\"\r\n", _userID] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[NSData dataWithData:data]]; [body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; // setting the body of the post to the reqeust [request setHTTPBody:body]; // now lets make the connection to the web NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding]; NSLog(@"%@",returnString); return returnString; } 现在我想发送我的用户名也derver端如何发送我的用户名？ 我试图用这种方式
[body appendData:[[NSString stringWithFormat:@"userId=%@",_userID] dataUsingEncoding:NSUTF8StringEncoding]];
但徒劳无功，我试图用这种方式发送它
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"userfile\"; filename=\"image%@.jpg\"; userId=\"%@\"\r\n", _userID, _userID] dataUsingEncoding:NSUTF8StringEncoding]];
但再次徒然如此亲切地指导我做什么！
如果你还没有想过使用AFNetworking ，你应该。 它使处理Web服务变得更容易。 我做了一些类似于我认为你想要做的事情。 我写了一个自定义类来触发networking请求。 在这里你去：NetworkClient.h
/* NetworkClient.h Created by LJ Wilson on 2/3/12. Copyright (c) 2012 LJ Wilson. All rights reserved. License: Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #import <Foundation/Foundation.h> extern NSString * const APIKey; @interface NetworkClient : NSObject +(void)processURLRequestWithURL:(NSString *)url andParams:(NSDictionary *)params block:(void (^)(id obj))block; +(void)processURLRequestWithURL:(NSString *)url andParams:(NSDictionary *)params syncRequest:(BOOL)syncRequest block:(void (^)(id obj))block; +(void)processURLRequestWithURL:(NSString *)url andParams:(NSDictionary *)params syncRequest:(BOOL)syncRequest alertUserOnFailure:(BOOL)alertUserOnFailure block:(void (^)(id obj))block; +(void)processFileUploadRequestWithURL:(NSString *)url andParams:(NSDictionary *)params fileData:(NSData *)fileData fileName:(NSString *)fileName mimeType:(NSString *)mimeType block:(void (^)(id obj))block; +(void)handleNetworkErrorWithError:(NSError *)error; +(void)handleNoAccessWithReason:(NSString *)reason; @end
NetworkClient.m
/* NetworkClient.m Created by LJ Wilson on 2/3/12. Copyright (c) 2012 LJ Wilson. All rights reserved. License: Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #import "NetworkClient.h" #import "AFHTTPClient.h" #import "AFHTTPRequestOperation.h" #import "SBJson.h" NSString * const APIKey = @"APIKEY GOES HERE IF YOU WANT TO USE ONE"; @implementation NetworkClient +(void)processURLRequestWithURL:(NSString *)url andParams:(NSDictionary *)params block:(void (^)(id obj))block { [self processURLRequestWithURL:url andParams:params syncRequest:NO alertUserOnFailure:NO block:^(id obj) { block(obj); }]; } +(void)processURLRequestWithURL:(NSString *)url andParams:(NSDictionary *)params syncRequest:(BOOL)syncRequest block:(void (^)(id obj))block { [self processURLRequestWithURL:url andParams:params syncRequest:syncRequest alertUserOnFailure:NO block:^(id obj) { block(obj); }]; } +(void)processURLRequestWithURL:(NSString *)url andParams:(NSDictionary *)params syncRequest:(BOOL)syncRequest alertUserOnFailure:(BOOL)alertUserOnFailure block:(void (^)(id obj))block { // Default url goes here, pass in a nil to use it if (url == nil) { url = @"http://www.mydomain.com/mywebservice"; } NSMutableDictionary *dict = [[NSMutableDictionary alloc] initWithDictionary:params]; [dict setValue:APIKey forKey:@"APIKey"]; NSDictionary *newParams = [[NSDictionary alloc] initWithDictionary:dict]; NSURL *requestURL; AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:requestURL]; NSMutableURLRequest *theRequest = [httpClient requestWithMethod:@"POST" path:url parameters:newParams]; __block NSString *responseString = [NSString stringWithString:@""]; AFHTTPRequestOperation *_operation = [[AFHTTPRequestOperation alloc] initWithRequest:theRequest]; __weak AFHTTPRequestOperation *operation = _operation; [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) { responseString = [operation responseString]; id retObj = [responseString JSONValue]; // Check for invalid response (No Access) if ([retObj isKindOfClass:[NSDictionary class]]) { if ([[(NSDictionary *)retObj valueForKey:@"Message"] isEqualToString:@"No Access"]) { block(nil); [self handleNoAccessWithReason:[(NSDictionary *)retObj valueForKey:@"Reason"]]; } } else if ([retObj isKindOfClass:[NSArray class]]) { if ([(NSArray *)retObj count] > 0) { NSDictionary *dict = [(NSArray *)retObj objectAtIndex:0]; if ([[dict valueForKey:@"Message"] isEqualToString:@"No Access"]) { block(nil); [self handleNoAccessWithReason:[(NSDictionary *)retObj valueForKey:@"Reason"]]; } } } block(retObj); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"Failed with error = %@", [NSString stringWithFormat:@"[Error]:%@",error]); block(nil); if (alertUserOnFailure) { // Let the user know something went wrong [self handleNetworkErrorWithError:operation.error]; } }]; [operation start]; if (syncRequest) { // Process the request syncronously [operation waitUntilFinished]; } } #pragma mark - processFileUpload +(void)processFileUploadRequestWithURL:(NSString *)url andParams:(NSDictionary *)params fileData:(NSData *)fileData fileName:(NSString *)fileName mimeType:(NSString *)mimeType block:(void (^)(id obj))block { // Default url goes here, pass in a nil to use it if (url == nil) { url = @"http://www.mydomain.com/mywebservice"; } NSMutableDictionary *dict = [[NSMutableDictionary alloc] initWithDictionary:params]; [dict setValue:APIKey forKey:@"APIKey"]; NSDictionary *newParams = [[NSDictionary alloc] initWithDictionary:dict]; AFHTTPClient *client= [AFHTTPClient clientWithBaseURL:[NSURL URLWithString:url]]; NSMutableURLRequest *myRequest = [client multipartFormRequestWithMethod:@"POST" path:@"" parameters:newParams constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) { [formData appendPartWithFileData:fileData name:fileName fileName:fileName mimeType:mimeType]; }]; AFHTTPRequestOperation *_operation = [[AFHTTPRequestOperation alloc] initWithRequest:myRequest]; __weak AFHTTPRequestOperation *operation = _operation; __block NSString *responseString = [NSString stringWithString:@""]; [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) { responseString = [operation responseString]; id retObj = [responseString JSONValue]; // Check for invalid response (No Access) if ([retObj isKindOfClass:[NSDictionary class]]) { if ([[(NSDictionary *)retObj valueForKey:@"Message"] isEqualToString:@"No Access"]) { block(nil); [self handleNoAccessWithReason:[(NSDictionary *)retObj valueForKey:@"Reason"]]; } } else if ([retObj isKindOfClass:[NSArray class]]) { if ([(NSArray *)retObj count] > 0) { NSDictionary *dict = [(NSArray *)retObj objectAtIndex:0]; if ([[dict valueForKey:@"Message"] isEqualToString:@"No Access"]) { block(nil); [self handleNoAccessWithReason:[(NSDictionary *)retObj valueForKey:@"Reason"]]; } } } block(retObj); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"Failed with error = %@", [NSString stringWithFormat:@"[Error]:%@",error]); block(nil); // if (alertUserOnFailure) { // // Let the user know something went wrong // [self handleNetworkErrorWithError:operation.error]; // } }]; [operation start]; } #pragma mark - Error and Access Handling +(void)handleNetworkErrorWithError:(NSError *)error { NSString *errorString = [NSString stringWithFormat:@"[Error]:%@",error]; // Standard UIAlert Syntax UIAlertView *myAlert = [[UIAlertView alloc] initWithTitle:@"Connection Error" message:errorString delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil]; [myAlert show]; } +(void)handleNoAccessWithReason:(NSString *)reason { // Standard UIAlert Syntax UIAlertView *myAlert = [[UIAlertView alloc] initWithTitle:@"No Access" message:reason delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil]; [myAlert show]; } @end
其中一些特定于我所做的事情。 我的所有Web服务都使用APIKey来增强安全性，并且在处理任何请求之前都会进行安全检查。 networking客户端将根据Web服务返回的内容（以JSON）返回NSDictionary或NSArray。
要使用图片上传，您可以像这样在VC中调用它（根据需要使用多个参数：
NSData *imageData = UIImagePNGRepresentation(myImage); NSString *fileName = @"MyFileName.png"; NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys: @"Param1", @"Param1Name", @"Param2", @"Param2Name", @"Param3", @"Param3Name", nil]; // Uses default URL [NetworkClient processFileUploadRequestWithURL:nil andParams:params fileData:imageData fileName:fileName mimeType:@"image/png" block:^(id obj) { if ([obj isKindOfClass:[NSArray class]]) { // Successful upload, do other processing as needed } }];
随意剥去你不需要的东西。 只需保留版权声明。
你可以试试这个：
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n",@"userId"] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithFormat:@"%@",_userID] dataUsingEncoding:NSUTF8StringEncoding]];
