DragonWenLong
e2274bdf09
- 新增设备联调中心相关控制器、服务、DTO和VO - 实现设备列表查询、文件上传、操作视频添加、设备详情等功能 - 优化设备 logo 上传逻辑，支持批量上传 - 重构部分代码结构，提高可维护性
29 lines
817 B
Java
29 lines
817 B
Java
package com.fuyuanshen.web.util;
|
|
|
|
import org.apache.commons.codec.digest.DigestUtils;
|
|
import org.springframework.web.multipart.MultipartFile;
|
|
|
|
import java.io.IOException;
|
|
import java.io.InputStream;
|
|
import java.security.MessageDigest;
|
|
import java.util.HexFormat;
|
|
|
|
/**
|
|
* 文件哈希工具类
|
|
*/
|
|
public class FileHashUtil {
|
|
private static final String ALGORITHM = "SHA-256";
|
|
|
|
public static String hash(MultipartFile file) throws IOException {
|
|
MessageDigest digest = DigestUtils.getDigest(ALGORITHM);
|
|
try (InputStream in = file.getInputStream()) {
|
|
byte[] buf = new byte[8192];
|
|
int len;
|
|
while ((len = in.read(buf)) != -1) {
|
|
digest.update(buf, 0, len);
|
|
}
|
|
}
|
|
return HexFormat.of().formatHex(digest.digest());
|
|
}
|
|
}
|