mescloud/src/main/java/com/jeesite/modules/mes/service/OcrService.java

package com.jeesite.modules.mes.service;


import lombok.AllArgsConstructor;
import net.sourceforge.tess4j.Tesseract;
import net.sourceforge.tess4j.TesseractException;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;

@Service
@AllArgsConstructor
public class OcrService {

    private final Tesseract tesseract;


    /*
    * 识别图片中的数据
    * @param imageFile 图片文件
    * @ return 识别信息
    * */
    public String recognizeText(MultipartFile imageFile) throws TesseractException, IOException {
        // 转换
        InputStream sbs = new ByteArrayInputStream(imageFile.getBytes());
        BufferedImage bufferedImage = ImageIO.read(sbs);

        return tesseract.doOCR(bufferedImage);
    }

}