开放一些接口，添加上传base64的功能

zhaoxiaohao

2020-07-04 f396628c87b143f233503b23f36e4fc76df25ab2

 kidgrow-business/kidgrow-filecenter/kidgrow-filecenter-biz/src/main/java/com/kidgrow/filecenter/service/impl/AbstractIFileService.java

@@ -6,6 +6,7 @@
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.kidgrow.common.constant.CommonConstant;
import com.kidgrow.common.model.PageResult;
import com.kidgrow.common.model.ResultBody;
import com.kidgrow.common.utils.DateUtil;
import com.kidgrow.common.utils.MultipartFileUtils;
import com.kidgrow.common.utils.RandomValueUtils;
@@ -18,8 +19,10 @@
import net.coobird.thumbnailator.Thumbnails;
import org.apache.commons.collections4.MapUtils;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.multipart.MultipartFile;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

import java.io.*;
import java.util.Date;
@@ -209,5 +212,31 @@
        }
        return null;
    }

    @Override
    public ResultBody baseDownLoad(Map<String, Object> map) {
        List<FileInfo> fileInfos = baseMapper.selectByMap(map);
        if(fileInfos.size()>0){
            FileInfo fileInfo = fileInfos.get(0);
            InputStream in = null;
            byte[] data = null;
            //读取图片字节数组
            try{
                in = new FileInputStream(fileInfo.getUrl());
                data = new byte[in.available()];
                in.read(data);
                in.close();
            }catch (IOException e){
                e.printStackTrace();
            }
            //对字节数组Base64编码
            BASE64Encoder encoder = new BASE64Encoder();
            //返回Base64编码过的字节数组字符串
            String encode = encoder.encode(data);
            return ResultBody.ok().data(encode);
        }else {
            return ResultBody.failed("获取数据失败");
        }
    }
}