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BAEL-1740

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Thoughtscript
2018-05-13 03:48:53 +01:00
parent 506962bc96
commit eceb73823b
7 changed files with 183 additions and 45 deletions
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12
javax-servlets/src/main/java/com/baeldung/servlets/Constants.java Normal file
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@@ -0,0 +1,12 @@
package com.baeldung.servlets;
public class Constants {
public static final String UPLOAD_DIRECTORY = "upload";
public static final String ENDPOINT = "/jspupload/uploadFile";
public static final int MEMORY_THRESHOLD = 1024 * 1024 * 3;
public static final int MAX_FILE_SIZE = 1024 * 1024 * 40;
public static final int MAX_REQUEST_SIZE = 1024 * 1024 * 50;
}

4
javax-servlets/src/main/java/com/baeldung/servlets/FormServlet.java
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@@ -24,10 +24,10 @@ public class FormServlet extends HttpServlet {
response.setHeader("Test", "Success");
response.setHeader("BMI", String.valueOf(bmi));
RequestDispatcher dispatcher = request.getRequestDispatcher("/WEB-INF/jsp/index.jsp");
RequestDispatcher dispatcher = request.getRequestDispatcher("/WEB-INF/jsp/upload.jsp");
dispatcher.forward(request, response);
} catch (Exception e) {
response.sendRedirect("index.jsp");
response.sendRedirect("upload.jsp");
}
}

61
javax-servlets/src/main/java/com/baeldung/servlets/UploadServlet.java Normal file
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@@ -0,0 +1,61 @@
package com.baeldung.servlets;
import static com.baeldung.servlets.Constants.MAX_FILE_SIZE;
import static com.baeldung.servlets.Constants.MAX_REQUEST_SIZE;
import static com.baeldung.servlets.Constants.MEMORY_THRESHOLD;
import static com.baeldung.servlets.Constants.UPLOAD_DIRECTORY;
import java.io.File;
import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
public class UploadServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
if (ServletFileUpload.isMultipartContent(request)) {
DiskFileItemFactory factory = new DiskFileItemFactory();
factory.setSizeThreshold(MEMORY_THRESHOLD);
factory.setRepository(new File(System.getProperty("java.io.tmpdir")));
ServletFileUpload upload = new ServletFileUpload(factory);
upload.setFileSizeMax(MAX_FILE_SIZE);
upload.setSizeMax(MAX_REQUEST_SIZE);
String uploadPath = getServletContext().getRealPath("") + File.separator + UPLOAD_DIRECTORY;
File uploadDir = new File(uploadPath);
if (!uploadDir.exists()) {
uploadDir.mkdir();
}
try {
List<FileItem> formItems = upload.parseRequest(request);
if (formItems != null && formItems.size() > 0) {
for (FileItem item : formItems) {
if (!item.isFormField()) {
String fileName = new File(item.getName()).getName();
String filePath = uploadPath + File.separator + fileName;
File storeFile = new File(filePath);
item.write(storeFile);
request.setAttribute("message", "File " + fileName + " has uploaded successfully!");
}
}
}
} catch (Exception ex) {
request.setAttribute("message","There was an error: " + ex.getMessage());
}
getServletContext().getRequestDispatcher("/result.jsp").forward(request, response);
}
}
}