Java程序网络图片下载
Java程序网络图片下载
Java程序网络图片下载:
- package action;
- import java.io.DataInputStream;
- import java.io.DataOutputStream;
- import java.io.FileOutputStream;
- import java.net.HttpURLConnection;
- import java.net.URL;
- public class Getpic {
- public Getpic() {
- }
- public static boolean saveUrlAs(String fileUrl, String savePath)/* fileUrl网络资源地址 */
- {
- try {
- /* 将网络资源地址传给,即赋值给url */
- URL url = new URL(fileUrl);
- /* 此为联系获得网络资源的固定格式用法,以便后面的in变量获得url截取网络资源的输入流 */
- HttpURLConnection connection = (HttpURLConnection) url.openConnection();
- DataInputStream in = new DataInputStream(connection.getInputStream());
- /* 此处也可用BufferedInputStream与BufferedOutputStream 需要保存的路径*/
- DataOutputStream out = new DataOutputStream(new FileOutputStream(savePath));
- /* 将参数savePath,即将截取的图片的存储在本地地址赋值给out输出流所指定的地址 */
- byte[] buffer = new byte[4096];
- int count = 0;
- while ((count = in.read(buffer)) > 0)/* 将输入流以字节的形式读取并写入buffer中 */
- {
- out.write(buffer, 0, count);
- }
- out.close();/* 后面三行为关闭输入输出流以及网络资源的固定格式 */
- in.close();
- connection.disconnect();
- return true;/* 网络资源截取并存储本地成功返回true */
- } catch (Exception e) {
- System.out.println(e + fileUrl + savePath);
- return false;
- }
- }
- public static void main(String[] args) {
- Getpic pic = new Getpic();/* 创建实例 */
- //需要下载的URL
- String photoUrl = "http://hiphotos.baidu.com/yanshennan/pic/item/03a505c8bcbaf6557f3e6f8a.jpg";
- // 截取最后/后的字符串
- String fileName = photoUrl.substring(photoUrl.lastIndexOf("/"));
- //图片保存路径
- String filePath = "E:";
- /* 调用函数,并且进行传参 */
- boolean flag = pic.saveUrlAs(photoUrl, filePath + fileName);
- System.out.println("Run ok!\n Get URL file " + flag);
- System.out.println(filePath);
- System.out.println(fileName);
- }
- }
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