iOS 图片文件上传 ----表单形式

来源：互联网发布：梦想小镇辅助mac 编辑：程序博客网时间：2024/06/05 07:06

这个确实是弄了好久，纠结了好久，在网上借鉴了这个方法，在这浪费了太多的时间，分享给大家，少走弯路吧……

这个自己定义的

// RequestPostUploadHelper.h

// PocketIdol1

// Created by on 16/1/22.

#import <Foundation/Foundation.h>

#import <UIKit/UIKit.h>

@interface RequestPostUploadHelper : NSObject

/**

*POST 提交并可以上传图片目前只支持单张

+ (NSString *)postRequestWithURL: (NSString *)url // IN

postParems: (NSMutableDictionary *)postParems// IN 提交参数据集合

picFilePath: (NSString *)picFilePath // IN 上传图片路径

picFileName: (NSString *)picFileName; // IN 上传图片名称

/**

* 修发图片大小

+ (UIImage *) imageWithImageSimple:(UIImage*)image scaledToSize:(CGSize) newSize;

/**

* 保存图片

+ (NSString *)saveImage:(UIImage *)tempImage WithName:(NSString *)imageName;

/**

* 生成GUID

//+ (NSString *)generateUuidString;

@end

// RequestPostUploadHelper.m

// PocketIdol1

// Created by on 16/1/22.

#import "RequestPostUploadHelper.h"

@implementation RequestPostUploadHelper

static NSString *const FORM_FLE_INPUT = @"upimg";//与服务器要求的key 一样

+ (NSString *)postRequestWithURL: (NSString *)url // IN

postParems: (NSMutableDictionary *)postParems// IN

picFilePath: (NSString *)picFilePath // IN上传图片路径

picFileName: (NSString *)picFileName // IN

{

NSString *TWITTERFON_FORM_BOUNDARY = @"0xKhTmLbOuNdArY";

//根据url初始化request

NSMutableURLRequest* request = [NSMutableURLRequestrequestWithURL:[NSURLURLWithString:url]

cachePolicy:NSURLRequestReloadIgnoringLocalCacheData

timeoutInterval:10];

//分界线 --AaB03x

NSString *MPboundary=[[NSStringalloc]initWithFormat:@"--%@",TWITTERFON_FORM_BOUNDARY];

//结束符 AaB03x--

NSString *endMPboundary=[[NSStringalloc]initWithFormat:@"%@--",MPboundary];

//得到图片的data

NSData* data;

if(picFilePath){

UIImage *image=[UIImageimageWithContentsOfFile:picFilePath];

//判断图片是不是png格式的文件

if (UIImagePNGRepresentation(image)) {

//返回为png图像。

data = UIImagePNGRepresentation(image);

}else {

//返回为JPEG图像。

data = UIImageJPEGRepresentation(image,1.0);

}

//http body的字符串

NSMutableString *body=[[NSMutableStringalloc]init];

//参数的集合的所有key的集合

NSArray *keys= [postParems allKeys];

//遍历keys

for(int i=0;i<[keyscount];i++)

{

//得到当前key

NSString *key=[keys objectAtIndex:i];

//添加分界线，换行

[body appendFormat:@"%@\r\n",MPboundary];

//添加字段名称，换2行

[body appendFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n",key];

//添加字段的值

[body appendFormat:@"%@\r\n",[postParemsobjectForKey:key]];

NSLog(@"添加字段的值==%@",[postParemsobjectForKey:key]);

}

if(picFilePath){

////添加分界线，换行

[body appendFormat:@"%@\r\n",MPboundary];

//声明pic字段，文件名为boris.png

[body appendFormat:@"Content-Disposition: form-data; name=\"%@\"; filename=\"%@\"\r\n",FORM_FLE_INPUT,picFileName];

//声明上传文件的格式

[body appendFormat:@"Content-Type: image/jpge,image/gif, image/jpeg, image/pjpeg, image/pjpeg\r\n\r\n"];

NSLog(@"body = %@",body);

}

//声明结束符：--AaB03x--

NSString *end=[[NSStringalloc]initWithFormat:@"\r\n%@",endMPboundary];

//声明myRequestData，用来放入http body

NSMutableData *myRequestData=[NSMutableDatadata];

//将body字符串转化为UTF8格式的二进制

[myRequestData appendData:[bodydataUsingEncoding:NSUTF8StringEncoding]];

if(picFilePath){

//将image的data加入

[myRequestData appendData:data];

}

//加入结束符--AaB03x--

[myRequestData appendData:[enddataUsingEncoding:NSUTF8StringEncoding]];

//设置HTTPHeader中Content-Type的值

NSString *content=[[NSStringalloc]initWithFormat:@"multipart/form-data; boundary=%@",TWITTERFON_FORM_BOUNDARY];

//设置HTTPHeader

[request setValue:contentforHTTPHeaderField:@"Content-Type"];

//设置Content-Length

[request setValue:[NSStringstringWithFormat:@"%lu", (unsignedlong)[myRequestDatalength]] forHTTPHeaderField:@"Content-Length"];

//设置http body

[request setHTTPBody:myRequestData];

//http method

[request setHTTPMethod:@"POST"];

NSHTTPURLResponse *urlResponese = nil;

NSError *error = [[NSErroralloc]init];

NSData* resultData = [NSURLConnectionsendSynchronousRequest:request returningResponse:&urlResponese error:&error];

NSString* result= [[NSStringalloc] initWithData:resultDataencoding:NSUTF8StringEncoding];

if([urlResponese statusCode] >=200&&[urlResponese statusCode]<300){

NSLog(@"返回结果=====%@",result);

return result;

}

return nil;

}

/**

* 修发图片大小

+ (UIImage *) imageWithImageSimple:(UIImage*)image scaledToSize:(CGSize) newSize{

newSize.height=image.size.height*(newSize.width/image.size.width);

UIGraphicsBeginImageContext(newSize);

[image drawInRect:CGRectMake(0,0, newSize.width, newSize.height)];

UIImage *newImage=UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

return newImage;

}

/**

* 保存图片

+ (NSString *)saveImage:(UIImage *)tempImage WithName:(NSString *)imageName{

NSData* imageData;

//判断图片是不是png格式的文件

if (UIImagePNGRepresentation(tempImage)) {

//返回为png图像。

imageData = UIImagePNGRepresentation(tempImage);

}else {

//返回为JPEG图像。

imageData = UIImageJPEGRepresentation(tempImage,1.0);

}

NSArray* paths =NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);

NSString* documentsDirectory = [paths objectAtIndex:0];

NSString* fullPathToFile = [documentsDirectorystringByAppendingPathComponent:imageName];

NSArray *nameAry=[fullPathToFile componentsSeparatedByString:@"/"];

NSLog(@"===fullPathToFile===%@",fullPathToFile);

NSLog(@"===FileName===%@",[nameAryobjectAtIndex:[nameAry count]-1]);

[imageData writeToFile:fullPathToFile atomically:NO];

return fullPathToFile;

}

///**

// * 生成GUID

// */

//+ (NSString *)generateUuidString{

// // create a new UUID which you own

// CFUUIDRef uuid = CFUUIDCreate(kCFAllocatorDefault);

// // create a new CFStringRef (toll-free bridged to NSString)

// // that you own

// NSString *uuidString = (NSString *)CFUUIDCreateString(kCFAllocatorDefault, uuid);

// // transfer ownership of the string

// // to the autorelease pool

// [uuidString autorelease];

// // release the UUID

// CFRelease(uuid);

// return uuidString;

//}

@end

要调用时用的

// PhoneVideoViewController.m

// PocketIdol1

// Created by on 16/1/13.

#import "PhoneVideoViewController.h"

@interface PhoneVideoViewController ()<UITableViewDataSource,UITableViewDelegate,PhoneVideoTableViewCellDelegate>

@end

NSString *TMP_UPLOAD_IMG_PATH=@"";

这个方法是点击提交按钮后传值到viewcontroller的《延展传值》

- (void)pushVideoPicWithUping:(UIImage *)uping withTimes:(NSString *)time withSign:(NSString *)sign withDesscription:(NSString *)description withVideodesc:(NSString *)videodesc withVideourl:(NSString *)videourl {

NSLog(@"pic = %@",self.picString);//这个是传过来的图片UIimage

//数据传给服务器的参数，没有图片，添加到字典里 post传值

[self.paramssetValue:time forKey:@"time"];

[self.paramssetValue:[[FileHandleshareInstance] userid]forKey:@"userid"];

[self.paramssetValue:sign forKey:@"sign"];

[self.paramssetValue:description forKey:@"description"];

[self.paramssetValue:videodesc forKey:@"videodesc"];

[self.paramssetValue:videourl forKey:@"videourl"];

NSDateFormatter *formatter = [[NSDateFormatteralloc] init];

formatter.dateFormat = @"yyyyMMddHHmmss";

NSString *str = [formatter stringFromDate:[NSDate date]];

NSString *fileName = [NSStringstringWithFormat:@"%@.png", str];

NSLog(@"%@", fileName);

//上传的接口

NSString *urlStr =@"你的url服务器地址";

//对图片进行处理

NSData* imageData =UIImagePNGRepresentation(self.picString);

NSArray* paths =NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);

NSString* documentsDirectory = [paths objectAtIndex:0];

// Now we get the full path to the file

NSString* fullPathToFile = [documentsDirectorystringByAppendingPathComponent:fileName];

// and then we write it out

TMP_UPLOAD_IMG_PATH=fullPathToFile;

NSArray *nameAry=[TMP_UPLOAD_IMG_PATHcomponentsSeparatedByString:@"/"];

NSLog(@"===new FileName===%@",[nameAryobjectAtIndex:[nameAry count]-1]);

NSString *file = fullPathToFile;

[imageData writeToFile:fullPathToFile atomically:NO];

NSLog(@"有图标上传时调用下面的方法");

nameAry=[TMP_UPLOAD_IMG_PATHcomponentsSeparatedByString:@"/"];

[RequestPostUploadHelperpostRequestWithURL:urlStr postParems:self.paramspicFilePath:file picFileName:[nameAryobjectAtIndex:[nameArycount]-1]];

}

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