iPHone 中用 NSURLRequest 实现文件上传

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// MainaerUploader.h

// View Switcher

// Created by dhanzhang on 10-7-6.

#import <Foundation/Foundation.h>

@interface MainaerUploader : NSObject {

NSString * serverUrl;

NSString * userName;

NSString * commentTitle;

NSString * commentText;

NSData * imageData ;

NSString * commentId;

id delegate;

SEL doneSelector;

SEL errorSelector;

BOOL uploadDidSucceed;

}

@property (nonatomic,retain) NSString * serverUrl;

@property (nonatomic,retain) NSString * userName;

@property (nonatomic,retain) NSString * commentTitle;

@property (nonatomic,retain) NSString * commentText;

@property (nonatomic,retain) NSData * imageData ;

@property (nonatomic,retain) NSString * commentId;

- (id)initWithUrlWithImageData: (NSString *)aServerUrl

userName:(NSString*) uName

commentTitle:(NSString*) title

commentText:(NSString*) msgText

commentId:(NSString*) productId

imageData:(NSData*) imgData

delegate: (id)aDelegate

doneSelector: (SEL)aDoneSelector

errorSelector: (SEL)aErrorSelector ;

@end

==============

// MainaerUploader.m

// View Switcher

// Created by dhanzhang on 10-7-6.

#import "MainaerUploader.h"

#import "Log.h"

static NSString * const BOUNDRY = @"--------------------------7d71a819230404";

@interface MainaerUploader (Private)

-(void)uploadSucceeded: (BOOL)success ;// IN

-(void) upload ;

-(NSURLRequest *) createUrlRequest:(NSData *) imgData

UserName:(NSString*) userName

TextData:(NSString*) textData

ProductName:(NSString*) nameData

ProductID:(NSString*) proId;

@end

@implementation MainaerUploader(Private)

-(void)uploadSucceeded: (BOOL)success

{

[delegate performSelector:success ? doneSelector : errorSelector withObject:self];

}

-(void)connectionDidFinishLoading:(NSURLConnection *)connection {

CMLog(@"connectionDidFinishLoading %s: self:0x%p/n", __func__, self);

}

-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {

CMLog(@"didFailWithError %s: self:0x%p, connection error:%s/n", __func__, self, [[error description] UTF8String]);

[self uploadSucceeded:NO];

}

-(void)connection:(NSURLConnection *)connection

didReceiveResponse:(NSURLResponse *)response {

CMLog(@"didReceiveResponse %s: self:0x%p/n", __func__, self);

}

-(void)connection:(NSURLConnection *)connection

didReceiveData:(NSData *)data {

NSLog(@"didReceiveData %s: self:0x%p/n", __func__, self);

NSString *reply =[ [NSString alloc] initWithData:data

encoding:NSUTF8StringEncoding] ;

CMLog(@"%s: data: %s/n", __func__, [reply UTF8String]);

if ([reply hasPrefix:@"YES"]) {

[self uploadSucceeded:YES];

} else {

[self uploadSucceeded:NO];

}

[reply release];

}

//-----------END: urlConnection Delegate --------

-(void) upload

{

NSURLRequest * urlRequest =[self createUrlRequest: [self imageData]

UserName: [self userName]

TextData: [self commentText]

ProductName: [self commentTitle]

ProductID: [self commentId] ];

NSURLConnection * connection =[

[[NSURLConnection alloc] initWithRequest:urlRequest delegate:self] autorelease];

if(!connection){

CMLog(@"CHUANG创建链接失败!");

}

-(NSURLRequest *) createUrlRequest:(NSData *) imgData

UserName:(NSString*) nickName

TextData:(NSString*) textData

ProductName:(NSString*) nameData

ProductID:(NSString*) proId

{

NSURL * url=[NSURL URLWithString: [self serverUrl]];

NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url];

[urlRequest setHTTPMethod:@"POST"];

[urlRequest setValue: [NSString stringWithFormat:@"multipart/form-data; boundary=%@", BOUNDRY]

forHTTPHeaderField:@"Content-Type"];

int len=512;

if(imgData !=nil){

len = imgData.length + 512;

}

NSMutableData * postData =[NSMutableData dataWithCapacity:len];

[postData appendData: [[NSString stringWithFormat:@"--%@/r/n",BOUNDRY] dataUsingEncoding:NSUTF8StringEncoding]];

[postData appendData: [[NSString stringWithFormat:@"Content-Disposition: form-data; name=/"%@/"/r/n/r/n",@"productName" ] dataUsingEncoding:NSUTF8StringEncoding]];

[postData appendData: [[NSString stringWithFormat:@"%@",nameData] dataUsingEncoding:NSUTF8StringEncoding]];

[postData appendData: [[NSString stringWithFormat:@"/r/n--%@/r/n",BOUNDRY] dataUsingEncoding:NSUTF8StringEncoding]];

[postData appendData: [[NSString stringWithFormat:@"Content-Disposition: form-data; name=/"%@/"/r/n/r/n",@"productMessage" ] dataUsingEncoding:NSUTF8StringEncoding]];

[postData appendData:[[NSString stringWithFormat:@"%@",textData] dataUsingEncoding:NSUTF8StringEncoding]];

[postData appendData:[[NSString stringWithFormat:@"/r/n--%@/r/n",BOUNDRY] dataUsingEncoding:NSUTF8StringEncoding]];

[postData appendData: [[NSString stringWithFormat:@"Content-Disposition: form-data; name=/"%@/"/r/n/r/n",@"productId" ] dataUsingEncoding:NSUTF8StringEncoding]];

[postData appendData:[[NSString stringWithFormat:@"%@",proId] dataUsingEncoding:NSUTF8StringEncoding]];

[postData appendData:[[NSString stringWithFormat:@"/r/n--%@/r/n",BOUNDRY] dataUsingEncoding:NSUTF8StringEncoding]];

[postData appendData: [[NSString stringWithFormat:@"Content-Disposition: form-data; name=/"%@/"/r/n/r/n",@"userName" ] dataUsingEncoding:NSUTF8StringEncoding]];

[postData appendData: [[NSString stringWithFormat:@"%@",nickName] dataUsingEncoding:NSUTF8StringEncoding]];

if (imgData != nil ) {

[postData appendData:[[NSString stringWithFormat:@"/r/n--%@/r/n",BOUNDRY] dataUsingEncoding:NSUTF8StringEncoding]];

[postData appendData: [[NSString stringWithFormat:@"Content-Disposition: form-data; name=/"%@/";filename=/"temp.png/"/r/nContent-Type: image/png/r/n/r/n",@"productImage" ] dataUsingEncoding:NSUTF8StringEncoding]];

[postData appendData:imgData];

}

//[postData appendData:[@"Kkkk" dataUsingEncoding:NSUTF8StringEncoding]];

[postData appendData:[[NSString stringWithFormat:@"/r/n--%@--/r/n",BOUNDRY] dataUsingEncoding:NSUTF8StringEncoding]];

[urlRequest setHTTPBody:postData];

return urlRequest;

}

@end

@implementation MainaerUploader

@synthesize serverUrl;

@synthesize userName;

@synthesize commentTitle;

@synthesize commentText;

@synthesize imageData ;

@synthesize commentId;

-(id)initWithUrlWithImageData: (NSString *)aServerUrl

userName:(NSString*) uName

commentTitle:(NSString*) title

commentText:(NSString*) msgText

commentId:(NSString*) productId

imageData:(NSData*) imgData

delegate: (id)aDelegate

doneSelector: (SEL)aDoneSelector

errorSelector: (SEL)aErrorSelector

{

if(self==[super init]){

[self setServerUrl:aServerUrl];

delegate = [aDelegate retain];

doneSelector = aDoneSelector;

errorSelector = aErrorSelector;

[self setUserName:uName];

[self setCommentId:productId];

[self setCommentTitle:title];

[self setCommentText:msgText];

[self setImageData:imgData];

[self upload];

}

return self;

}

-(void)dealloc

{

[delegate release];

delegate = nil;

[userName release];

userName=nil;

[commentId release];

commentId=nil;

[commentText release];

commentText=nil;

[commentTitle release];

commentTitle=nil;

[serverUrl release];

serverUrl =nil;

[imageData release];

imageData=nil;

doneSelector = NULL;

errorSelector = NULL;

[super dealloc];

}

@end

================使用方法============

MainaerUploader * upl= [[ MainaerUploader alloc] initWithUrlWithImageData:urlPath

userName:userName

commentTitle:title

commentText:msg

commentId:pid

imageData:imgData

delegate:self

doneSelector:@selector(onUploadDone:)

errorSelector:@selector(onUploadError:)] ;

[upl release];

-(void) onUploadDone:(MainaerUploader*) args

{

CMLog(@"发部消息成功!");

}

-(void) onUploadError :(MainaerUploader*) args

{

CMLog(@"发表消息失败!");

}

======================POST 的分隔符号参加另外一片文章

http://blog.csdn.net/dhz123/archive/2007/06/06/1641150.aspx

大文件上传的HttpModule实现

http://www.flyblog.info/catprogramming/392.html

iPhone SDK开发：如何上传图片文件到服务器