ASIHttpRequest响应的编码问题

伙计们,我试过了,但没有成功。

    ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:[NSURL URLWithString:self.urlString]]; 
request.delegate = self;
[request setDefaultResponseEncoding:NSUTF8StringEncoding];
[request setResponseEncoding:NSUTF8StringEncoding];
[request setRequestMethod:@"PUT"];
[request addRequestHeader:@"Accept" value:@"application/xml"];
[request addRequestHeader:@"Content-Type" value:@"application/xml; charset=UTF-8;"];

拆卸:

- (void)requestFinished:(ASIHTTPRequest *)request
{
        [self HideProgressing];

//      NSString *poweredBy = [[request responseHeaders] objectForKey:@"X-Powered-By"];
//      NSString *contentType = [[request responseHeaders] objectForKey:@"Content-Type"];

        NSString *body = [request responseString];
        //NSString *body = [[NSString alloc] initWithData:[request responseData] encoding:NSUTF8StringEncoding];
        NSLog(@"%@\n%@", body, request.responseStatusMessage);

甚至“内容类型”也说它有UTF-8。但我只看到像“4857”这样的东西,而不是西里尔符号。

有人用编码解决了同样的问题吗?

数据来自Basecamp API,如果有帮助的话。谢谢。