~admin/kidgrow-microservices-platform.git

			@@ -1,6 +1,7 @@
			package com.kidgrow.filecenter.service.impl;

			import cn.hutool.core.util.IdUtil;
			import com.aliyun.oss.model.OSSObject;
			import com.aliyun.oss.model.ObjectMetadata;
			import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
			import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
			@@ -18,17 +19,13 @@
			import lombok.extern.slf4j.Slf4j;
			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 org.slf4j.Logger;
			import org.slf4j.LoggerFactory;

			import java.io.*;
			import java.util.Date;
			import java.util.List;
			import java.util.Map;
			import java.util.UUID;
			import java.util.*;

			/**
			* 石家庄喜高科技有限责任公司版权所有 © Copyright 2020<br>
			@@ -41,6 +38,7 @@
			@Slf4j
			public abstract class AbstractIFileService extends ServiceImpl<FileMapper, FileInfo> implements IFileService {
			private static final String FILE_SPLIT = ".";
			private static Logger logger = LoggerFactory.getLogger(AbstractIFileService.class);

			@Override
			public FileInfo upload(MultipartFile file) throws Exception {
			@@ -97,6 +95,7 @@
			protected abstract void uploadFile(MultipartFile file, FileInfo fileInfo) throws Exception;
			protected abstract void fileUpLoadOss(FileInfo fileInfo,String newFilePath, InputStream fileStream);
			protected abstract String FilePath(String imgType,String folderByDate);
			protected abstract OSSObject down(String url);

			/**
			* 删除文件
			@@ -135,20 +134,25 @@
			@Override
			public FileInfo uploadForThumbnails(MultipartFile file, String imgType) throws Exception {
			FileInfo fileInfo=this.upload(file,imgType);
			List<String> lassStr= Arrays.asList("png","bmp","dib","gif","jfif","jpe","jpeg","jpg","tif","tiff","ico");
			String suffix=file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf(".")+1);
			if(!lassStr.contains(suffix)){
			return null;
			}
			if (StringUtils.isNotBlank(fileInfo.getUrl())) {
			//生成缩略图上传
			File nowFile= MultipartFileUtils.multipartFileToFile(file);
			// File nowFile= MultipartFileUtils.multipartFileToFile(file);
			// File nowFile= new File(file.getOriginalFilename());
			//暂存目录发布后真实存在的磁盘目录
			String result = CommonConstant.TEMP_IMAGE_PATH;
			//文件扩展名
			String suffix=file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));
			String newFileName= RandomValueUtils.uuid()+suffix;
			String newFileName= RandomValueUtils.uuid()+"."+suffix;
			//生成缩略图
			Thumbnails.of(nowFile).size(CommonConstant.TH_IMG_WIDTH, CommonConstant.TH_IMG_HEIGHT).toFile(result+newFileName);
			Thumbnails.of(file.getInputStream()).size(CommonConstant.TH_IMG_WIDTH, CommonConstant.TH_IMG_HEIGHT).toFile(result+newFileName);
			File thuFile= new File(result+newFileName);
			if (thuFile.exists()) {
			//将生成的文件转换为流
			InputStream inputStream=new FileInputStream(new File(result+newFileName));
			InputStream inputStream=new FileInputStream(thuFile);
			String folderByDate = DateUtil.formatDate(new Date());
			String filefloder=this.FilePath(imgType,folderByDate);
			FileInfo newfileInfo=new FileInfo();
			@@ -163,8 +167,10 @@
			//文件上传到oss
			this.fileUpLoadOss(newfileInfo,filefloder+newFileName,inputStream);
			inputStream.close();
			//删除暂存文件
			MultipartFileUtils.delteTempFile(thuFile);
			// //删除暂存文件
			// MultipartFileUtils.delteTempFile(thuFile);
			boolean delete = thuFile.delete();

			// 将文件信息保存到数据库
			baseMapper.insert(newfileInfo);
			fileInfo.setPath(newfileInfo.getUrl());
			@@ -214,29 +220,41 @@
			}

			@Override
			public ResultBody baseDownLoad(Map<String, Object> map) {
			public ResultBody baseDownLoad(Map<String, Object> map) throws Exception {
			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();
			OSSObject down1 = this.down(fileInfo.getUrl().replace("https://kidgrow.oss-accelerate.aliyuncs.com/",""));
			InputStream objectContent = down1.getObjectContent();
			//返回Base64编码过的字节数组字符串
			String encode = encoder.encode(data);
			byte[] data = null;
			// 读取图片字节数组
			try {
			ByteArrayOutputStream swapStream = new ByteArrayOutputStream();
			byte[] buff = new byte[100];
			int rc = 0;
			while ((rc = objectContent.read(buff, 0, 100)) > 0) {
			swapStream.write(buff, 0, rc);
			}
			data = swapStream.toByteArray();
			} catch (IOException e) {
			e.printStackTrace();
			} finally {
			if (objectContent != null) {
			try {
			objectContent.close();
			down1.close();
			} catch (IOException e) {
			throw new Exception("输入流关闭异常");
			}
			}
			}
			String encode="data:"+fileInfo.getContentType()+";base64,"+Base64.getEncoder().encodeToString(data);
			return ResultBody.ok().data(encode);
			}else {
			return ResultBody.failed("获取数据失败");
			}
			}

			}