删除base64转文件类

backend/inz.common/src/main/java/com/beecode/inz/common/util/BASE64DecodedMultipartFile.java

-package com.beecode.inz.common.util;
-
-import org.springframework.web.multipart.MultipartFile;
-import sun.misc.BASE64Decoder;
-
-import java.io.*;
-
-public class BASE64DecodedMultipartFile implements MultipartFile {
-  
-    private final byte[] imgContent;
-    private final String header;
-  
-    public BASE64DecodedMultipartFile(byte[] imgContent, String header) {
-        this.imgContent = imgContent;
-        this.header = header.split(";")[0];
-    }
-  
-    @Override
-    public String getName() {
-        return System.currentTimeMillis() + Math.random() + "." + header.split("/")[1];
-    }
-  
-    @Override
-    public String getOriginalFilename() {
-        return System.currentTimeMillis() + (int) Math.random() * 10000 + "." + header.split("/")[1];
-    }
-  
-    @Override
-    public String getContentType() {
-        return header.split(":")[1];
-    }
-  
-    @Override
-    public boolean isEmpty() {
-        return imgContent == null || imgContent.length == 0;
-    }
-  
-    @Override
-    public long getSize() {
-        return imgContent.length;
-    }
-  
-    @Override
-    public byte[] getBytes() throws IOException {
-        return imgContent;
-    }
-  
-    @Override
-    public InputStream getInputStream() throws IOException {
-        return new ByteArrayInputStream(imgContent);
-    }
-  
-    @Override
-    public void transferTo(File dest) throws IOException, IllegalStateException {
-        new FileOutputStream(dest).write(imgContent);
-    }
-  
-    public static MultipartFile base64ToMultipart(String base64) {
-        try {
-            String[] baseStrs = base64.split(",");
-  
-            BASE64Decoder decoder = new BASE64Decoder();
-            byte[] b = new byte[0];
-            b = decoder.decodeBuffer(baseStrs[1]);
-  
-            for (int i = 0; i < b.length; ++i) {
-                if (b[i] < 0) {
-                    b[i] += 256;
-                }
-            }
-            return new BASE64DecodedMultipartFile(b, baseStrs[0]);
-        } catch (IOException e) {
-            e.printStackTrace();
-            return null;
-        }
-    }
-  
-}
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