再上传图片的过程中，我用了3天时间终于把这个问题给解决了。主要是细节上总是出错。像我标示加粗的地方都是很容易出错的地方。要仔细看清楚了！少一个字符都不行！
接口类的 boundry定义
static NSString * const BOUNDRY = @"0xKhTmLbOuNdArY";
boundry=BOUNDRY
发送实体类:
@implementation SendBinaryImage
// 傳送圖片二進制流
+(BOOL )sendImage:(NSData *)data1 boundry:(NSString *)boundry{
NSURL *urlstring= @"http://192.168.10.88/test/test.php"; //
NSString *contentType=[NSString stringWithFormat:@"multipart/form-data;boundary=%@" ,boundry];
NSMutableURLRequest *request=[[[NSMutableURLRequest alloc] init] autorelease];
[request setURL: [NSURL URLWithString:urlstring]];
[request setHTTPMethod:@"POST" ];
[request addValue:contentType forHTTPHeaderField:@"Content-Type" ];
NSMutableData *body=[NSMutableData data];
NSMutableString *str=[[NSMutableString alloc] init];
[str appendFormat:@"\r\n\r\n--%@\r\n" ,boundry];
[str appendFormat: @"Content-Disposition:form-data; name=\"username\"\r\n\r\n"];
[str appendFormat:@"username" ];
[str appendFormat:@"\r\n\r\n--%@\r\n" ,boundry];
[str appendFormat: @"Content-Disposition:form-data; name=\"passwd\"\r\n\r\n"];
[str appendFormat:@"password" ];
[body appendData:[str dataUsingEncoding:NSUTF8StringEncoding]];//application/octet-stream
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n" ,boundry] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat: @"Content-Disposition:form-data; name=\"filedata\"; filename=\"ttt.jpg\"\r\nContent-Type:application/octet-stream\r\nContent-Transfer-Encoding: binary\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:data1]];
[body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n" ,boundry] dataUsingEncoding:NSUTF8StringEncoding]];
[str release];
[request setHTTPBody:body];
NSURLResponse *response;
NSError *err;
NSData *returnData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
NSString *returnString=[[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
NSLog(returnString);
NSString *content=@"1" ;
BOOL logined = [content intValue] == 1 ;
return logined;
}
+(NSString*)getBoundry{
return BOUNDRY;
}
@end