From f396628c87b143f233503b23f36e4fc76df25ab2 Mon Sep 17 00:00:00 2001
From: zhaoxiaohao <913652501@qq.com>
Date: Sat, 04 Jul 2020 21:04:27 +0800
Subject: [PATCH] 开放一些接口，添加上传base64的功能
---
kidgrow-business/kidgrow-filecenter/kidgrow-filecenter-biz/src/main/java/com/kidgrow/filecenter/service/impl/AbstractIFileService.java | 134 +++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 131 insertions(+), 3 deletions(-)
diff --git a/kidgrow-business/kidgrow-filecenter/kidgrow-filecenter-biz/src/main/java/com/kidgrow/filecenter/service/impl/AbstractIFileService.java b/kidgrow-business/kidgrow-filecenter/kidgrow-filecenter-biz/src/main/java/com/kidgrow/filecenter/service/impl/AbstractIFileService.java
index 527487e..71d54eb 100644
--- a/kidgrow-business/kidgrow-filecenter/kidgrow-filecenter-biz/src/main/java/com/kidgrow/filecenter/service/impl/AbstractIFileService.java
+++ b/kidgrow-business/kidgrow-filecenter/kidgrow-filecenter-biz/src/main/java/com/kidgrow/filecenter/service/impl/AbstractIFileService.java
@@ -1,21 +1,34 @@
package com.kidgrow.filecenter.service.impl;
+import cn.hutool.core.util.IdUtil;
+import com.aliyun.oss.model.ObjectMetadata;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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;
+import com.kidgrow.common.utils.StringUtils;
import com.kidgrow.filecenter.mapper.FileMapper;
import com.kidgrow.filecenter.model.FileInfo;
import com.kidgrow.filecenter.service.IFileService;
import com.kidgrow.filecenter.util.FileUtil;
-
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 java.io.*;
+import java.util.Date;
import java.util.List;
import java.util.Map;
+import java.util.UUID;
/**
* 石家庄喜高科技有限责任公司 版权所有 © Copyright 2020<br>
@@ -82,6 +95,8 @@
* @param fileInfo
*/
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);
/**
* 删除文件
@@ -110,5 +125,118 @@
List<FileInfo> list = baseMapper.findList(page, params);
return PageResult.<FileInfo>builder().data(list).code(0).count(page.getTotal()).build();
}
+ /**
+ * 上传图片-并缩略，其实是给文件服务器存储了两个文件 一个原文件 一个缩略图文件
+ * @param file form内的文件数据
+ * @param imgType 业务类型 例如logo
+ * @return 返回的实体中 path字段保存的是缩略图地址
+ * @throws Exception
+ */
+ @Override
+ public FileInfo uploadForThumbnails(MultipartFile file, String imgType) throws Exception {
+ FileInfo fileInfo=this.upload(file,imgType);
+ if (StringUtils.isNotBlank(fileInfo.getUrl())) {
+ //生成缩略图上传
+ File nowFile= MultipartFileUtils.multipartFileToFile(file);
+ //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;
+ //生成缩略图
+ Thumbnails.of(nowFile).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));
+ String folderByDate = DateUtil.formatDate(new Date());
+ String filefloder=this.FilePath(imgType,folderByDate);
+ FileInfo newfileInfo=new FileInfo();
+ newfileInfo.setName(newFileName);
+ newfileInfo.setId(IdUtil.fastSimpleUUID());
+ newfileInfo.setSize(thuFile.length());
+ newfileInfo.setIsImg(true);
+ newfileInfo.setContentType(file.getContentType());
+ newfileInfo.setSource(fileInfo.getSource());
+ newfileInfo.setImgType(imgType);
+ newfileInfo.setCreateTime(new Date());
+ //文件上传到oss
+ this.fileUpLoadOss(newfileInfo,filefloder+newFileName,inputStream);
+ inputStream.close();
+ //删除暂存文件
+ MultipartFileUtils.delteTempFile(thuFile);
+ // 将文件信息保存到数据库
+ baseMapper.insert(newfileInfo);
+ fileInfo.setPath(newfileInfo.getUrl());
+ }
+ return fileInfo;
+ }
+ else
+ {
+ return fileInfo;
+ }
+ }
+
+ @Override
+ public FileInfo baseUplaod(String file, String imgType) {
+ if(file==null||"".equals(file.trim())){
+ return null;
+ }
+ String name=file.split(",")[0];
+ file = file.split(",")[1];
+ BASE64Decoder decoder = new BASE64Decoder();
+ try {
+ byte[] bytes = decoder.decodeBuffer(file);
+ ObjectMetadata objectMeta = new ObjectMetadata();
+ objectMeta.setContentLength(file.length());
+ //将字节码转换成流
+ InputStream input = new ByteArrayInputStream(bytes);
+ String fileName= UUID.randomUUID().toString().replaceAll("-","");
+ //image/jpeg;base64
+ String newFileName=fileName+"."+name.substring(name.lastIndexOf("/")+1,name.lastIndexOf(";"));
+ FileInfo newfileInfo=new FileInfo();
+ newfileInfo.setName(newFileName);
+ newfileInfo.setId(IdUtil.fastSimpleUUID());
+ newfileInfo.setSize(file.length());
+ newfileInfo.setIsImg(true);
+ newfileInfo.setContentType("image/jpeg");
+ newfileInfo.setSource("aliyun");
+ newfileInfo.setImgType(imgType);
+ newfileInfo.setCreateTime(new Date());
+ this.fileUpLoadOss(newfileInfo,"HospitalLogo/"+newFileName,input);
+ input.close();
+ baseMapper.insert(newfileInfo);
+ return newfileInfo;
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+ 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");
+ }
+ }
}
--
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