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我想創建一個Servlet，它將接受一個簡單的POST請求。我按照here所描述的方法，並啓動了服務器，它用文字打出頁面你好朋友！如預期的那樣，。Java Servlet的post請求不能與ServletFileUpload一起使用
所以接下來，我將doGet方法替換爲doPost，如here所述。這是我的代碼（大部分代碼被註釋掉）：
package com.file.upload;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.util.Iterator;
import java.util.List;
import javax.activation.MimetypesFileTypeMap;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.FilenameUtils;
/**
* Servlet implementation class HelloServlet
*/
@WebServlet("/Test")
public class Test extends HttpServlet {
private static final long serialVersionUID = 1L;
private boolean isMultipart;
private String filePath;
private int maxFileSize = 50 * 1024;
private int maxMemSize = 4 * 1024;
private File file ;
public void init(){
// Get the file location where it would be stored.
filePath =
getServletContext().getInitParameter("file-upload");
}
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, java.io.IOException {
// Check that we have a file upload request
isMultipart = ServletFileUpload.isMultipartContent(request);
response.setContentType("text/html");
java.io.PrintWriter out = response.getWriter();
if(!isMultipart){
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet upload</title>");
out.println("</head>");
out.println("<body>");
out.println("<p>No file uploaded</p>");
out.println("</body>");
out.println("</html>");
return;
}
boolean isMultipart = ServletFileUpload.isMultipartContent(request);
if (isMultipart) {
FileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
// try {
// List items = upload.parseRequest(request);
// Iterator iterator = items.iterator();
// while (iterator.hasNext()) {
// FileItem item = (FileItem) iterator.next();
// if (!item.isFormField()) {
// String fileName = item.getName();
//
// String root = getServletContext().getRealPath("/");
// File path = new File(root + "/fileuploads");
// if (!path.exists()) {
// boolean status = path.mkdirs();
// }
//
// File uploadedFile = new File(path + "/" + fileName);
// item.write(uploadedFile);
// }
// }
// } catch(Exception ex) {
// System.out.println(ex);
// }
}
}
}
的代碼爲ServletFileUpload upload = new ServletFileUpload(factory);線失敗。這是錯誤堆棧我得到：
如何解決這個問題？
編輯：Eclipse中顯示錯誤日誌：
------
STATUS
------
pluginId org.eclipse.wst.server.core
pluginVersion 1.6.100.v201505132000
code 0
severity 4
message HIDDEN
fingerprint d680f315
Exception:org.eclipse.epp.internal.logging.aeri.ui.log.StandInStacktraceProvider$StandInException: HIDDEN
at org.eclipse.core.internal.jobs.JobManager.endJob(JobManager.java:701)
at org.eclipse.core.internal.jobs.WorkerPool.endJob(WorkerPool.java:105)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:72)
------
REPORT
------
anonymousId 5eca4a19-ce2d-4492-b01b-0011f98c45ff
name My Name
email
comment
eclipseBuildId 4.5.0.I20150603-2000
eclipseProduct org.eclipse.epp.package.jee.product
javaRuntimeVersion 1.8.0_51-b16
osgiWs cocoa
osgiOs MacOSX
osgiOsVersion 10.10.5
osgiArch x86_64
logMessage false
ignoreSimilar false
-------
BUNDLES
-------
name org.eclipse.core.jobs
version 3.7.0.v20150330-2103
檢查頁面，如果這個問題是對您有用：http://stackoverflow.com/questions/32471642/multiple-file-upload/32472421 ＃32472421 –
錯誤堆棧與到目前爲止發佈的代碼無關。 Tomcat剛啓動失敗（通常是由於嚴重的webapp配置錯誤）。它甚至沒有機會調用這個servlet。發佈完整的啓動日誌（請不要在截圖中，對searchbots不友好，只需將其發佈在代碼塊中）。 – BalusC
你能告訴我在哪裏可以得到完整的啓動日誌嗎？我張貼的截圖？在它出現後立即消失（我以極高的時間精度截圖）... – SexyBeast