前言
在工作我们经常会出现有多个文件，为了节省资源会将多个文件放在一起进行压缩处理；为了让大家进一步了解我先将springboot处理的方法总结如下，有不到之处敬请大家批评指正！
一、文件准备：
https://qnsc.oss-cn-beijing.aliyuncs.com/crmebimage/public/product/2024/11/12/be353210028a3da732c8ba34073fb4ca.jpeg https://qnsc.oss-cn-beijing.aliyuncs.com/crmebimage/public/product/2024/11/13/5bbf579109db2641249deab4be4340f6.jpeg https://qnsc.oss-cn-beijing.aliyuncs.com/crmebimage/public/product/2024/11/13/1808773678128361474.xlsx
二、处理步骤：
1.创建一个springboot web项目 这一步在此省略.....
2.需要的方法及类的编写
（1）业务方法-TestService
public interface TestService {
void compressFiles(List<String> fileUrls, HttpServletResponse response);
}
（2）业务方法实现类-TestServiceImpl
@Service
@Slf4j
public class TestServiceImpl implements TestService {
@Override
public void compressFiles(List<String> fileUrls, HttpServletResponse response) {
try (ZipOutputStream zipOut = new ZipOutputStream(response.getOutputStream())) {
for (String fileUrl : fileUrls) {
// 1.从网络下载文件并写入 ZIP
try {
URL url = new URL(fileUrl);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.connect();
// 2.检查响应码
if (connection.getResponseCode() != HttpURLConnection.HTTP_OK) {
throw new IOException("Failed to download file: " + fileUrl);
}
// 3.从 URL 中提取文件名
String pathStr = fileUrl.substring(fileUrl.lastIndexOf('/') + 1);
// 4.创建 ZIP 条目
ZipEntry zipEntry = new ZipEntry(pathStr);
zipOut.putNextEntry(zipEntry);
// 5.读取文件的输入流
try (InputStream inputStream = new BufferedInputStream(connection.getInputStream())) {
byte[] buffer = new byte[1024];
int length;
while ((length = inputStream.read(buffer)) >= 0) {
zipOut.write(buffer, 0, length);
}
}
zipOut.closeEntry();
} catch (IOException e) {
log.error("Error processing file URL: " + fileUrl, e);
throw new RuntimeException(e);
}
}
// 6.响应信息设置处理
response.setContentType("application/octet-stream");
response.setHeader("Content-Disposition", "attachment;filename=test.zip");
response.flushBuffer();
} catch (IOException e) {
log.error("Error compressing files", e);
throw new RuntimeException(e);
}
}
}
（3）控制器类的编写-TestController
/**
* @Project:
* @Description:
* @author: songwp
* @Date: 2024/11/13 14:50
**/
@RequestMapping("test")
@RestController
@Slf4j
public class TestController {
@Autowired
private TestService testService;
/**
* 文件压缩
*
* @param fileUrls 要压缩的文件 URL 列表
* @param response 响应对象
*/
@GetMapping("/fileToZip")
public void zip(@RequestParam("fileUrls") List<String> fileUrls, HttpServletResponse response) {
testService.compressFiles(fileUrls, response);
}
}
三、方法调用展示
（1）存放到桌面
（2）解压response.zip文件
标签：文件,springboot,fileUrls,public,new,fileUrl,压缩文件,response From： https://www.cnblogs.com/songweipeng/p/18543941