小编Pri*_*aju的帖子

我需要在项目中上传图片.如何在SpringMVC中获取上传路径.路径是;

/home/cme/project/eclipse/workspace_12_11/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/fileUploadTester/upload

以下错误;

The method getServletContext() is undefined for the type HomePageController

我使用此代码时出现;

String uploadPath = getServletContext().getRealPath("") + File.separator + UPLOAD_DIRECTORY;

我的代码是

public ModelAndView UploadPhoto(@ModelAttribute User user, HttpServletRequest request, HttpServletResponse response) throws IOException {
 final String UPLOAD_DIRECTORY = "upload";
 final int THRESHOLD_SIZE = 1024 * 1024 * 3; // 3MB
 final int MAX_FILE_SIZE = 1024 * 1024 * 40; // 40MB
 final int MAX_REQUEST_SIZE = 1024 * 1024 * 50; // 50MB

 String value[] = new String[10];
 int i = …

我在MySQL中使用以下查询，效果很好：

explain SELECT COUNT(userid) FROM tableone where userid='abc'

我在Oracle中尝试了相同的操作，但出现以下错误：

SQL Error [905] [42000]: ORA-00905: missing keyword
 ORA-00905: missing keyword

当我在mysql中执行解释查询时，其结果类型，possible_keys，key，key_len，ref等。。。