jcrop+ajaxuploadfile图片裁切上传oss

/** * Copyright &copy; 2015-2050 谦亨科技 All rights reserved. */ package com.qhwl.admin.cms.web; import java.awt.Rectangle; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import javax.imageio.ImageIO; import javax.imageio.ImageReadParam; import javax.imageio.ImageReader; import javax.imageio.stream.ImageInputStream; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.disk.DiskFileItem; import org.apache.shiro.authz.annotation.RequiresPermissions; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.multipart.commons.CommonsMultipartFile; import org.springframework.web.servlet.mvc.support.RedirectAttributes; import com.qhwl.admin.cms.entity.CmsFile; import com.qhwl.admin.cms.service.CmsFileService; import com.qhwl.admin.hyyj.entity.CmsVideoSet; import com.qhwl.admin.hyyj.service.CmsVideoSetService; import com.qhwl.common.config.Global; import com.qhwl.common.fileupload.OSSUnit; import com.qhwl.common.mapper.JsonMapper; import com.qhwl.common.persistence.Page; import com.qhwl.common.utils.FileUtils; import com.qhwl.common.utils.StringUtils; import com.qhwl.common.web.BaseController; /** * cms文件管理Controller * * @author ztj * @version 2017-02-21 */ @Controller @RequestMapping(value = "${adminPath}/cms/cmsFile") public class CmsFileController extends BaseController { @RequestMapping(value = "fileUpload") @ResponseBody public Map<String, String> fileUpload(@RequestParam(value = "picUrl") MultipartFile picUrl, @RequestParam String x, @RequestParam String y, @RequestParam String w, @RequestParam String h) throws IOException { String refileName = ""; if (picUrl != null) { String fileName = picUrl.getOriginalFilename(); byte[] data = null; InputStream fis = null; ImageInputStream iis = null; try { if (picUrl.getBytes().length < 5242880 && FileUtils.isImg(fileName)) { data = picUrl.getBytes(); String imageFormat = FileUtils.fileSuff(fileName); fis = picUrl.getInputStream(); Iterator it = ImageIO.getImageReadersByFormatName(imageFormat); ImageReader reader = (ImageReader) it.next(); // 获取图片流 iis = ImageIO.createImageInputStream(fis); reader.setInput(iis, true); ImageReadParam param = reader.getDefaultReadParam(); // 定义一个矩形 Rectangle rect = new Rectangle(Integer.parseInt(x), Integer.parseInt(y), Integer.parseInt(w), Integer.parseInt(h)); // 提供一个 BufferedImage，将其用作解码像素数据的目标。 param.setSourceRegion(rect); BufferedImage bi = reader.read(0, param); // 保存新图片 File file = multipartToFile(picUrl,imageFormat); ImageIO.write(bi, imageFormat, file); refileName = OSSUnit.uploadObject2OSS(file); } else { logger.debug("文件大于5M或者文件类型不正确！"); } } catch (IOException e1) { logger.debug("文件上传失败" + e1); } finally { if (fis != null) fis.close(); if (iis != null) iis.close(); } } Map<String, String> jsonMap = new HashMap<String, String>(); jsonMap.put("imagePath", refileName); return jsonMap;// 返回json串 } /** * MultipartFile 转换成File * * @param multfile 原文件类型 * @return File * @throws IOException */ private File multipartToFile(MultipartFile multfile,String suff) throws IOException { CommonsMultipartFile cf = (CommonsMultipartFile)multfile; //这个myfile是MultipartFile的 DiskFileItem fi = (DiskFileItem) cf.getFileItem(); File file = fi.getStoreLocation(); //手动创建临时文件 if(file.length() < 5242880){ String fileName = file.getName(); int index= fileName.lastIndexOf("."); if(index!=-1){ fileName = fileName.substring(0,index + 1)+suff; } File tmpFile = new File(System.getProperty("java.io.tmpdir") + System.getProperty("file.separator") + fileName); multfile.transferTo(tmpFile); return tmpFile; } return file; } }