java下载网络图片到本地

asfx站长

2020.10.18 18:43:30 阅读 744

```java
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection;

/**
	 * 下载网络图片
	 * @param imgUrl
	 * @param filename
	 * @throws Exception
	 */
	public static void download(String imgUrl, String filename) throws Exception {
		// 构造URL
		URL url = new URL(imgUrl);
		// 打开连接
		URLConnection con = url.openConnection();
		// 输入流
		InputStream is = con.getInputStream();
		// 1K的数据缓冲
		byte[] bs = new byte[1024];
		// 读取到的数据长度
		int len;
		// 输出的文件流
		OutputStream os = new FileOutputStream(filename);
		// 开始读取
		while ((len = is.read(bs)) != -1) {
			os.write(bs, 0, len);
		}
		// 完毕，关闭所有链接
		os.close();
		is.close();
	}

// 测试下载网络图片
	public static void main(String[] args) throws Exception {
		String imgUrl = "https://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTJfiaPlibd5hgw3wTTlFP34vL5QlxRYoT0s6VG0vpcW4naLqxEXibO4YXSLpAMxdwEk97dlN1gEw5iaNA/132";
		String filename = "c:\\test\\1.png";
		download(imgUrl, filename);
		System.out.println("下载完毕！图片已存储到本地：" + filename);
	}
```