java下载zip文件

你可以使用Java的标准库中的java.net.URL和java.io包来下载zip文件。

下面是一个简单的示例代码：

import java.io.BufferedInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URL;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

public class DownloadZipFile {
    public static void main(String[] args) throws IOException {
        String zipUrl = "https://example.com/example.zip";
        String destinationFolder = "/path/to/destination/folder/";
        
        URL url = new URL(zipUrl);
        ZipInputStream zipInputStream = new ZipInputStream(new BufferedInputStream(url.openStream()));
        
        ZipEntry zipEntry;
        while ((zipEntry = zipInputStream.getNextEntry()) != null) {
            String fileName = zipEntry.getName();
            if (!zipEntry.isDirectory()) {
                FileOutputStream fileOutputStream = new FileOutputStream(destinationFolder + fileName);
                byte[] buffer = new byte[1024];
                int count;
                while ((count = zipInputStream.read(buffer)) != -1) {
                    fileOutputStream.write(buffer, 0, count);
                }
                fileOutputStream.close();
            }
            zipInputStream.closeEntry();
        }
        zipInputStream.close();
    }
}

在上述代码中，你需要将zipUrl替换为zip文件的URL，将destinationFolder替换为你想要下载zip文件的目录。然后，该程序会将zip文件下载到所指定的目录，并解压缩其中的文件。