httpPost中上传图片 httpclient实现

大家好：
     我想在Android软件中实现上传图片的功能。Post上传，用httpclient实现

   相关代码如下：
   HttpClient httpClient = new DefaultHttpClient();
   HttpPost httpPost = new HttpPost(url);

   List<BasicNameValuePair> result = new ArrayList<BasicNameValuePair>();
    //添加参数
    BasicNameValuePair pair = new BasicNameValuePair("status", “文本信息”);
     result.add(pair);

    httpPost.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
    HttpResponse httpResponse = httpClient.execute(httpPost);

   图片文件形式为：
    File file = new File("/sdcard/picture.jpg");

   请问各位高手，如何将图片file转换并且添加到参数中？
   谢谢

--------------------编程问答-------------------- 图片是用post上传数据流,直接给你代码看吧

public boolean postFile(String url, File f) {
if (url == null || f == null) {
System.out.println("URL或者文件为NULL");
return false;
}
HttpClient client = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse response = null;
try {
FileEntity entity = new FileEntity(f, "binary/octet-stream");
httpPost.setEntity(entity);
response = client.execute(httpPost);
} catch (Exception e) {
System.out.println(e.toString());
} finally {
}

// 判断上传的状态和打印调试信息
if (response != null
&& response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
// 打印调试信息,上传的url和上传的文件大小
System.out.println(MessageFormat.format(
"upload picture success! url = [{0}],file size = [{1}]", url,
f.length()));
return true;
}else
{
System.out.println(response.getStatusLine().getStatusCode());
}
return false;
} --------------------编程问答-------------------- 自己搞定了 --------------------编程问答-------------------- 兄弟，搞定了也分享一下。 --------------------编程问答-------------------- 楼主不厚道啊，搞定了也不分享一下 --------------------编程问答-------------------- 应该是没有问题的，看下服务器 --------------------编程问答-------------------- 是啊搞定了不分享下~ --------------------编程问答-------------------- LZ不厚道............... --------------------编程问答-------------------- 怎么搞定的啊？求楼主分享代码，我也急需要用啊 --------------------编程问答-------------------- 真心不厚道啊……同求啊……

补充：移动开发 ,  Android