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java代码用数据库存储 用java写数据库( 二 )

IT技术Eyelink


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将Base64编码转换为文件流的工具类
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;
}
【java代码用数据库存储 用java写数据库】@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; ib.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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内容接收并完成处理工具类
public class RichTextUtil {
/**
*
* @param text 富文本内容
* @return返回处理图片后的数据
*/
publicString richText(String text,MinioUtils minioUtils,MinioConfig minioConfig){
String s=new String(text);
String result=null;//返回结果

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