简单记录主要是便于自己用，有需要的参考一下...
上传至腾讯云，相关文档参阅官方文档
附件为比较早的版本，自己修改过
1、实体bean --用multipartFile接收
public class UploadForm {
//上传的图片
private MultipartFile PhotoFile;
public MultipartFile getPhotoFile() {
return PhotoFile;
}
public void setPhotoFile(MultipartFile photoFile) {
PhotoFile = photoFile;
}
}
2、controller
@RequestMapping(value="/uploadImage")
@ResponseBody
public String uploadImage(UploadForm uploadForm,Model model ){
return uploadService.uploadImage(uploadForm,model);
}
3、service
@Transactional
public String uploadImage(UploadForm uploadForm,Model model ){
//图片类型
String imageType = siteForm.getImageType();
MultipartFile uploadFile = siteForm.getPhotoFile();
UploadResult result = PicUploadUtil.picUploadByFileAstrict(uploadFile, 1920, 572, 0, new String[]{"jpg","jpeg","png"}, false);
if(result.result != 0)
return "2";
//将图片信息保存到数据库
CtAttachment attachmentExample = new CtAttachment();
attachmentExample.setUserId(SecurityUserHelper.getCurrentUser().getPersonId());
attachmentExample.setAttCode(imageType);
attachmentExample.setAttName(uploadFile.getOriginalFilename());
attachmentExample.setAttUrl(result.download_url);
this.ctAttachmentDAO.insertNotNull(attachmentExample);
return result.download_url;
}
4、PicUploadUtil
/**
* 图片上传
* @param file
* @param width 宽度限制 <=0表示不校验
* @param height 高度限制 <=0表示不校验
* @param size 大小限制 <=0表示不校验
* @param suffix 后缀限制 null或length<0表示不校验
* @param needCompress 是否需要压缩
* @return
*/
public static UploadResult picUploadByFileAstrict(MultipartFile file,int width,int height,long size,String [] suffix,boolean needCompress) {
UploadResult result = new UploadResult();
try {
String imgName = file.getOriginalFilename();
String imgSuffix = imgName.substring(imgName.lastIndexOf(".") + 1);
//不用添加后缀
String imgNameTemp = UUID.randomUUID().toString();
File fileTemp = new File(picTempDir + imgNameTemp);
//这里只使用路径，而不创建真实文件，所有也不用考虑删除文件的问题
if(fileTemp.exists()){
log.error("target file is exists , create fail !");
result.result = -1;
return result;
}
byte[] advImageBytes = null;
InputStream advImageStream = null;
advImageStream = file.getInputStream();
advImageBytes = FileCopyUtils.copyToByteArray(advImageStream);
FileCopyUtils.copy(advImageBytes, fileTemp);
advImageStream.close();
BufferedImage buff = ImageIO.read(fileTemp);
if((width > 0 ? buff.getWidth() > width : false) || (height > 0 ? buff.getHeight() > height : false) ||
(size > 0 ?file.getSize() > size : false) || ((null != suffix&&suffix.length>0)?!ArrayUtils.contains(suffix, imgSuffix):false)){
//TODO 如果需要压缩，则直接压缩到指定大小，不用校验
/*//返回之前先删除添加的文件,
fileTemp.delete();*/
result.result = 1;
return result;
}
PicCloud pc = new PicCloud(APP_ID, SECRET_ID, SECRET_KEY);
int ret = pc.UploadByFile("", fileTemp, result);
if(ret == 0){
result.result = 0;
}else{
result.result = -1;
}
return result;
} catch (Exception e) {
log.error(e);
}
return null;
}
5、jsp页面
<div id="updateBox" style="display:none;">
<input style="border:0;width:190px;" type="file" id="PhotoFile" name="PhotoFile"/>
<button class="leeer" type="button" onclick="addPhoto(<c:out value='${model.id }'/>);">上传图片</button>
<!--<button class="leeer" onclick="updateImg(1);return false;">关闭</button>
--></div>
6、spring-mvc 配置
<!-- SpringMVC上传文件时，需要配置MultipartResolver处理器 -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 指定所上传文件的总大小不能超过200KB。注意maxUploadSize属性的限制不是针对单个文件，而是所有文件的容量之和 -->
<property name="maxUploadSize" value="10000000"/>
</bean>
<!-- SpringMVC在超出上传文件限制时，会抛出org.springframework.web.multipart.MaxUploadSizeExceededException -->
<!-- 该异常是SpringMVC在检查上传的文件信息时抛出来的，而且此时还没有进入到Controller方法中 -->
<bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
<property name="exceptionMappings">
<props>
<!-- 遇到MaxUploadSizeExceededException异常时，自动跳转到error_fileupload.jsp页面 -->
<prop key="org.springframework.web.multipart.MaxUploadSizeExceededException">error_fileupload</prop>
</props>
</property>
</bean>