package cc.mrbird.febs.dapp.controller;
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import cc.mrbird.febs.common.annotation.ControllerEndpoint;
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import cc.mrbird.febs.common.controller.BaseController;
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import cc.mrbird.febs.common.entity.FebsResponse;
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import cn.hutool.core.lang.UUID;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import net.coobird.thumbnailator.Thumbnails;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.util.FileCopyUtils;
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import org.springframework.validation.annotation.Validated;
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import org.springframework.web.bind.annotation.*;
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import org.springframework.web.multipart.MultipartFile;
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import javax.imageio.ImageIO;
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import java.awt.image.BufferedImage;
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import java.io.*;
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import java.util.HashMap;
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import java.util.Map;
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@Slf4j
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@Validated
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@RestController
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@RequiredArgsConstructor
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@RequestMapping(value = "/admin/goods")
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public class AdminMallGoodsController extends BaseController {
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/**
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* 通用上传请求
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*/
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@Value("${static.resource.url}")
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private String resourceUrl;
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@Value("${static.resource.path}")
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private String resourcePath;
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@PostMapping("/uploadFileBase64")
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@ControllerEndpoint(operation = "图片上传", exceptionMessage = "上传失败")
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public Map<String,Object> upload(MultipartFile file) throws IOException {
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if (file == null) {
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return new FebsResponse().message("上传文件为空");
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}
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// 文件保存目录路径
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String savePath = resourcePath;
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// 文件保存目录URL
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String saveUrl = resourceUrl;
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// 检查目录
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File uploadDir = new File(savePath);
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if (!uploadDir.isDirectory()) {
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uploadDir.mkdir();
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}
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// 获得文件的后缀
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String fileName = file.getOriginalFilename();
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String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1);
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String newFileName = UUID.randomUUID().toString() + "." + fileExt;
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if (isImage(file.getInputStream())) {
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Thumbnails.of(file.getInputStream())
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// 图片大小（长宽）压缩比例 从0-1，1表示原图
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.scale(1f)
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// 图片质量压缩比例 从0-1，越接近1质量越好
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.outputQuality(0.9f)
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.toOutputStream(new FileOutputStream(savePath + newFileName));
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} else {
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File uploadedFile = new File(savePath, newFileName);
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try {
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//存文件
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FileCopyUtils.copy(file.getBytes(), uploadedFile);
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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String visitPath = (saveUrl + newFileName);
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Map<String,Object> map = new HashMap<String,Object>();
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Map<String,Object> map2 = new HashMap<String,Object>();
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map.put("code",0);//0表示成功，1失败
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map.put("msg","上传成功");//提示消息
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map.put("data",map2);
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map2.put("src",visitPath);//图片url
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map2.put("title",fileName);//图片名称，这个会显示在输入框里
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return map;
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}
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private boolean isImage(InputStream inputStream) {
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BufferedImage read = null;
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try {
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read = ImageIO.read(inputStream);
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} catch (IOException e) {
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return false;
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}
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return read != null;
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}
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}
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