/**
* 产生异常
*
* @param
* @return
*/
public ActionForward doError(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
demoService.doError();
setOkTipMsg("交易成功", response);
return mapping.findForward("exceptionView");
}
/**
* Web表单文件上传 单个/批量同理
*
* @param
* @return
*/
public ActionForward doUpload(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
BaseActionForm cForm = (BaseActionForm) form;
// 单个文件,如果是多个就cForm.getFile2()....支持最多5个文件
FormFile myFile = cForm.getFile1();
// 获取web应用根路径,也可以直接指定服务器任意盘符路径
String savePath = getServlet().getServletContext().getRealPath("/") + "/upload/";
// String savePath = "d:/upload/";
// 检查路径是否存在,如果不存在则创建之
File file = new File(savePath);
if (!file.exists()) {
file.mkdir();
}
// 文件按天归档
savePath = savePath + G4Utils.getCurDate() + "/";
File file1 = new File(savePath);
if (!file1.exists()) {
file1.mkdir();
}
// 文件真实文件名
String fileName = myFile.getFileName();
// 我们一般会根据某种命名规则对其进行重命名
// String fileName = ;
File fileToCreate = new File(savePath, fileName);
// 检查同名文件是否存在,不存在则将文件流写入文件磁盘系统
if (!fileToCreate.exists()) {
FileOutputStream os = new FileOutputStream(fileToCreate);
os.write(myFile.getFileData());
os.flush();
os.close();
} else {
// 此路径下已存在同名文件,是否要覆盖或给客户端提示信息由你自己决定
FileOutputStream os = new FileOutputStream(fileToCreate);
os.write(myFile.getFileData());
os.flush();
os.close();
}
// 我们通常还会把这个文件的相关信息持久化到数据库
Dto inDto = cForm.getParamAsDto(request);
inDto.put(
"title",
G4Utils.isEmpty(inDto.getAsString("title")) ? fileName : inDto.getAsString("title"));
inDto.put("filesize", myFile.getFileSize());
inDto.put("path", savePath + fileName);
demoService.doUpload(inDto);
setOkTipMsg("文件上传成功", response);
return mapping.findForward(null);
}
/**
* 删除文件
*
* @param mapping
* @param form
* @param request
* @param response
* @return
* @throws Exception
*/
public ActionForward delFiles(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
BaseActionForm aForm = (BaseActionForm) form;
Dto dto = aForm.getParamAsDto(request);
String[] strChecked = dto.getAsString("strChecked").split(",");
for (int i = 0; i < strChecked.length; i++) {
String fileid = strChecked[i];
Dto fileDto = (BaseDto) g4Reader.queryForObject("Demo.queryFileByFileID", fileid);
String path = fileDto.getAsString("path");
File file = new File(path);
file.delete();
demoService.delFile(fileid);
}
setOkTipMsg("文件删除成功", response);
return mapping.findForward(null);
}