//封装一个工具类FileUploader

//FileUploader.h

#import

@interface FileUploader : NSObject

+(void) upLoadImage:(UIImage *) p_w_picpath completionHandler:(void (^)(NSURLResponse* response, NSData* data, NSError* connectionError)) handler;

@end

//FileUploader.m

#import"FileUploader.h"

@implementationFileUploader

+(void) upLoadImage:(UIImage *) p_w_picpath completionHandler:(void (^)(NSURLResponse* response, NSData* data, NSError* connectionError)) handle

{

NSString*path1 = [NSStringstringWithFormat:@"http://2.guansir.sinaapp.com/upload.php"];

NSURL *url = [NSURL URLWithString:path1];

NSData*data =UIImagePNGRepresentation(p_w_picpath);

NSString *TWITTERFON_FORM_BOUNDARY = @"AaB03x";

//分界线 --AaB03x

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

//结束符 AaB03x--

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

//http body的字符串

NSMutableString*body=[[NSMutableStringalloc]init];

添加分界线，换行

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

//声明pic字段，文件名为boris.png

[bodyappendFormat:@"Content-Disposition: form-data; name=\"img\"; filename=\"boris.png\"\r\n"];

//声明上传文件的格式

[bodyappendFormat:@"Content-Type: p_w_picpath/png\r\n\r\n"];

//声明结束符：--AaB03x--

NSString *end=[[NSString alloc]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

[myRequestDataappendData:[bodydataUsingEncoding:NSUTF8StringEncoding]];

//将p_w_picpath的data加入

[myRequestData appendData:data];

//加入结束符--AaB03x--

[myRequestDataappendData:[enddataUsingEncoding:NSUTF8StringEncoding]];

//设置HTTPHeader中Content-Type的值

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

NSMutableURLRequest*request = [NSMutableURLRequestrequestWithURL:url];

//设置HTTPHeader

[requestsetValue:contentforHTTPHeaderField:@"Content-Type"];

//设置Content-Length

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

//设置http body

[request setHTTPBody:myRequestData];

//http method

[request setHTTPMethod:@"POST"];

[NSURLConnection sendAsynchronousRequest:request queue:[[NSOperationQueue alloc]init] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {

handle(response,data,connectionError);

}];

}

@end

//FileUploader类封装完成========================================================

//使用

[FileUploader upLoadImage:p_w_picpath completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {

if(connectionError==nil)

{

if (data != nil) {

NSLog(@"%@",[[NSString alloc] initWithData:data encoding:4]);

NSError *error;

NSDictionary*dic = [NSJSONSerializationJSONObjectWithData:dataoptions:NSJSONReadingMutableContainerserror:&error];

if (dic == nil) {

}else{

//如果有值的话将图片和所需要的参数更新到服务端，这里需要的是将图片和老师id传到服务端改教师头像

NSString *strImage = [NSString stringWithFormat:@"id=%d&imgHead=%@",self.teachId,dic[@"p_w_picpathUrl"]];

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

NSData *data1 = [strImage dataUsingEncoding:4];

NSString *path = [NSString stringWithFormat:@"%@%@",HOST,TEACHER_UPDATE];

NSURL *url = [NSURL URLWithString:path];

NSMutableURLRequest*req = [NSMutableURLRequestrequestWithURL:url];

[req setHTTPMethod:@"POST"];

[req setHTTPBody:data1];

[NSURLConnection sendAsynchronousRequest:req queue:[NSOperationQueue new] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {

if (!connectionError) {

NSLog(@"更新成功= %@",[[NSString alloc]initWithData:data encoding:4]);

}else

{

NSLog(@"error = %@",connectionError);

}

}];

}

}

}

else

{

NSLog(@"error = %@",connectionError);

}

}];