一.通過URL獲取網路圖片

import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

/**
     * 獲取網路圖片流
     * 
     * @param url
     * @return
     */
    public InputStream getImageStream(String url) {
        try {
            HttpURLConnection connection = (HttpURLConnection) new
 
 URL(url).openConnection();
            connection.setReadTimeout(5000);
            connection.setConnectTimeout(5000);
            connection.setRequestMethod("GET");
            if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {
                InputStream inputStream = connection.getInputStream();
                return
 
 inputStream;
            }
        } catch (IOException e) {
            System.out.println("獲取網路圖片出現異常，圖片路徑為：" + url);
            e.printStackTrace();
        }
        return null;
    }

二. 注意事項

傳入的URL必須是以http://開頭的,因為我們使用了HttpURLConnection，示例：

https://fanyi.bdstatic.com/static/translation/img/header/logo_cbfea26.png