otected void add(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
response.setCharacterEncoding("utf-8");
request.setCharacterEncoding("utf-8");
PrintWriter out = response.getWriter(); // 设置保存上传文件的目录
String uploadDir = getServletContext().getRealPath("/upload");
// System.out.println(uploadDir);
if (uploadDir == null) {
out.println("无法访问存储目录");
return;
} File fUploadDir = new File(uploadDir); if (!fUploadDir.exists()) {
if (!fUploadDir.mkdir()) {
out.println("无法创建存储目录");
return;
}
} if (!DiskFileUpload.isMultipartContent(request)) {
out.println("只能处理multipart/form-data类型的数据");
return;
} DiskFileUpload fu = new DiskFileUpload();
// 最多上传 200M 数据
fu.setSizeMax(1024 * 1024 * 200);
// 超过 1M 的字段数据采用临时文件缓存
fu.setSizeThreshold(1024 * 1024);
// 采用默认的临时文件存储位置
// fu.setRepositoryPath(...);
// 设置上传的普通字段的名称和文件字段名所采用的字符集编码
fu.setHeaderEncoding("utf-8"); // 得到所有表单字段对象的**
List fileItems = null;
try {
fileItems = fu.parseRequest(request);
} catch (FileUploadException e) {
out.println("解析数据时出现如下问题");
e.printStackTrace(out);
return;
} // 处理每个表单字段
Iterator i = fileItems.iterator();
while (i.hasNext()) {
FileItem fi = (FileItem) i.next();
if (fi.isFormField()) {
String content = fi.getString("utf-8");
String filedName = fi.getFieldName();
request.setAttribute(filedName, content);
} else {
try {
String pathSrc = fi.getName();
/**
* 如果用户没有在form表单的文件字段中选择任何文件， 那么忽略对该字段项的处理
*/
if (pathSrc.trim().equals("")) {
continue;
}
int start = pathSrc.lastIndexOf('\\');
String fileName = pathSrc.substring(start + 1);
File pathDest = new File(uploadDir, fileName); fi.write(pathDest);
String fieldName = fi.getFieldName();
request.setAttribute(fieldName, fileName);
} catch (Exception e) {
out.println("存储文件时出现如下问题");
e.printStackTrace(out);
return;
} finally {
fi.delete();
}
}
}
String title = (String) request.getAttribute("title");
Object type1 = request.getAttribute("type");
int type = Integer.parseInt((String) type1);
String titleImage = (String) request.getAttribute("titleImage");
String content = (String) request.getAttribute("content");
newsBean nb = new newsBean();
nb.setTitle(title);
nb.setType(type);
titleImage = uploadDir + "\\" + titleImage;
nb.setTitleImage(titleImage);
nb.setContent(content);
NewsService nse = new NewsService();
nse.addNews(nb);
LogDao logg = new LogDao();
String message = "";
message = "添加新闻成功！";
logg.greatlog(request, message);
response.sendRedirect("NewsServlet?action=all");
}

这样写有问题么？

如果对我提出的问题有疑惑的话，请指出。。。真切求教答案啊。

图片显示不出来主要是数据库里的图片路径和工程里面的查找路径不同！