android imageView 获取指定名字的图片、从MyEclipse服务器下载图片

int imgId = getResources().getIdentifier(imgName, "drawable", getPackageName());   //imgName为图片名称；
imageView.setImageResource(imgId);

int[] imgs = new int[7];
for(int i=0; i<imgs.size(); i++)
{
imgs[i] = getResources().getIdentifier("a"+i, "drawable", getPackageName());
}

private Bitmap getImage(String imgPath)
{
URL url = null;
Bitmap bitmap = null;
InputStream input = null;
HttpURLConnection httpCon = null;
//服务器地址+项目名+图片的路径；http://192.168.18.145:8080/Order/images/a.png (images/a.png是在服务器的WebRoot文件夹下）;
url = new URL(Content.path + imgPath);
httpCon = (HttpURLConnection) url.openConnection();
httpCon.setConnectTimeout(5000);  //设置超时时间；
System.out.println("=============");
if(httpCon.getResponseCode() == 200)
{
System.out.println("----------=");
input = httpCon.getInputStream();
bitmap = BitmapFactory.decodeStream(input);
System.out.println("=====" + bitmap);
}
//获取失败的话，就显示本地的任意一张图片；
else
{
bitmap = BitmapFactory.decodeResource(this.getResources(), R.drawable.dish_no_image);
}

if(input != null)
{
input.close();
}
if(httpCon != null)
{
httpCon.disconnect();
}
return bitmap;
}