java中图片Url,下载成压缩包放入指定文件夹

您可以使用Java的IO流来下载图片并保存到指定的文件夹中。以下是一个简单的示例代码：

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;

public class ImageDownloader {
    public static void downloadImage(String imageUrl, String savePath) throws IOException {
        URL url = new URL(imageUrl);
        URLConnection conn = url.openConnection();
        conn.setConnectTimeout(5000);
        conn.setReadTimeout(5000);
        BufferedInputStream in = new BufferedInputStream(conn.getInputStream());
        BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(savePath));
        byte[] buf = new byte[1024];
        int len = 0;
        while ((len = in.read(buf)) != -1) {
            out.write(buf, 0, len);
        }
        out.close();
        in.close();
    }

    public static void main(String[] args) throws IOException {
        String imageUrl = "http://example.com/image.jpg";
        String savePath = "/path/to/save/image.jpg";
        downloadImage(imageUrl, savePath);
    }
}

您可以将上述代码中的`imageUrl`替换为您要下载的图片的URL，将`savePath`替换为您要保存图片的文件路径。如果您需要将多个图片压缩成一个压缩包，可以使用Java的ZipOutputStream类来实现。以下是示例代码：

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ImageDownloader {
    public static void downloadImage(String imageUrl, String savePath) throws IOException {
        URL url = new URL(imageUrl);
        URLConnection conn = url.openConnection();
        conn.setConnectTimeout(5000);
        conn.setReadTimeout(5000);
        BufferedInputStream in = new BufferedInputStream(conn.getInputStream());
        BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(savePath));
        byte[] buf = new byte[1024];
        int len = 0;
        while ((len = in.read(buf)) != -1) {
            out.write(buf, 0, len);
        }
        out.close();
        in.close();
    }

    public static void compressImagesToZip(String[] imageUrls, String zipFilePath) throws IOException {
        ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zipFilePath)));
        byte[] buf = new byte[1024];
        for (int i = 0; i < imageUrls.length; i++) {
            String imageUrl = imageUrls[i];
            String fileName = "image" + i + ".jpg";
            ZipEntry entry = new ZipEntry(fileName);
            out.putNextEntry(entry);
            BufferedInputStream in = new BufferedInputStream(new URL(imageUrl).openStream());
            int len;
            while ((len = in.read(buf)) > 0) {
                out.write(buf, 0, len);
            }
            in.close();
            out.closeEntry();
        }
        out.close();
    }

    public static void main(String[] args) throws IOException {
        String[] imageUrls = {"http://example.com/image1.jpg", "http://example.com/image2.jpg"};
        String zipFilePath = "/path/to/save/images.zip";
        compressImagesToZip(imageUrls, zipFilePath);
    }
}

您可以将上述代码中的`imageUrls`替换为您要下载并压缩的图片的URL数组，将`zipFilePath`替换为您要保存压缩包的文件路径。