java.io.FileNotFoundException:D:\Servers\apache-tomcat-7.0.27\webapps\acct\accesscarddata(访问被拒绝)
我将文件上载到服务器并从服务器读取文件,当我在服务器中打开文件夹时,我会看到上载的文件,但当我尝试访问文件进行处理时,会出现以下异常:java.io.FileNotFoundException:D:\Servers\apache-tomcat-7.0.27\webapps\acct\accesscarddata(访问被拒绝),java,exception,servlets,filenotfoundexception,Java,Exception,Servlets,Filenotfoundexception,我将文件上载到服务器并从服务器读取文件,当我在服务器中打开文件夹时,我会看到上载的文件,但当我尝试访问文件进行处理时,会出现以下异常: java.io.FileNotFoundException: D:\Servers\apache-tomcat-7.0.27\webapps\acct\accesscarddata (Access is denied) 更新: 上载文件的代码: protected void doGet(HttpServletRequest request,HttpServle
java.io.FileNotFoundException: D:\Servers\apache-tomcat-7.0.27\webapps\acct\accesscarddata (Access is denied)
更新:
上载文件的代码:
protected void doGet(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {
HttpSession session = request.getSession(true);
for (Part part : request.getParts()) {
InputStream is = request.getPart(part.getName()).getInputStream();
int i = is.available();
byte[] b = new byte[i];
is.read(b);
String fileName = getFileName(part);
if(session.getAttribute("accesscardDatafileNname")!=null)
session.setAttribute("accesscardDatafileNname", fileName);
String uploadDir = getServletContext().getRealPath("/accesscarddata/");
FileOutputStream os = new FileOutputStream(uploadDir + "/"+ fileName);
os.write(b);
is.close();
}
}
这就是我调用方法的方式:doGet(请求,响应)代码>
以下是我尝试读取文件的方式:
@SuppressWarnings({ "rawtypes", "unchecked" })
protected void readFile(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {
String fileName = "", employeeAttendanceFilePath = "";
String _uploadDir = getServletContext().getRealPath("/accesscarddata/");
HttpSession session = request.getSession(true);
if (session.getAttribute("accesscardDatafileNname") != null)
fileName = (String) session.getAttribute("accesscardDatafileNname");
employeeAttendanceFilePath = _uploadDir + "/" + fileName;
List sheetData = new ArrayList();
FileInputStream fis = null;
try {
fis = new FileInputStream(employeeAttendanceFilePath);
HSSFWorkbook workbook = new HSSFWorkbook(fis);
HSSFSheet sheet = workbook.getSheetAt(0);// gets the first sheet on workbook
Iterator rows = sheet.rowIterator();
while (rows.hasNext()) {
HSSFRow row = (HSSFRow) rows.next();
Iterator cells = row.cellIterator();
// count=count+1;
List data = new ArrayList();
while (cells.hasNext()) {
HSSFCell cell = (HSSFCell) cells.next();
data.add(cell);
}
sheetData.add(data);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (fis != null) {
fis.close();
}
}
session.setAttribute("sheetData", sheetData);
}
下面是堆栈跟踪:
java.io.FileNotFoundException: D:\Servers\apache-tomcat-7.0.27\webapps\acct\accesscarddata (Access i
s denied)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:120)
at java.io.FileInputStream.<init>(FileInputStream.java:79)
at com.slingmedia.notifier.servlet.LeaveReportServlet.readFile(LeaveReportServlet.java:236)
at com.slingmedia.notifier.servlet.LeaveReportServlet.doPost(LeaveReportServlet.java:159)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j
ava:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999
)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.jav
a:565)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1812)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
java.io.FileNotFoundException:D:\Servers\apache-tomcat-7.0.27\webapps\acct\accesscarddata(访问i
(拒绝)
在java.io.FileInputStream.open(本机方法)
位于java.io.FileInputStream。(FileInputStream.java:120)
位于java.io.FileInputStream。(FileInputStream.java:79)
位于com.slingmedia.notifier.servlet.LeaveReportServlet.readFile(LeaveReportServlet.java:236)
位于com.slingmedia.notifier.servlet.LeaveReportServlet.doPost(LeaveReportServlet.java:159)
位于javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
位于javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j
ava:305)
位于org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
位于org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
位于org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
位于org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
位于org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
位于org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
位于org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
位于org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
位于org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
位于org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999
)
位于org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.jav
a:565)
位于org.apache.tomcat.util.net.aprendop$SocketProcessor.run(aprendop.java:1812)
位于java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
位于java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
运行(Thread.java:662)
我想这是访问权限的问题,但不知道是相同的问题还是其他问题
请为我提供解决此问题所需的信息
谢谢和问候。您正在阅读的是文件夹accesscarddata
,而不是accesscardDatafileNname
if(session.getAttribute("accesscardDatafileNname")!=null)
session.setAttribute("accesscardDatafileNname", fileName);
这将永远不会用文件名设置属性。虽然Alexander给你的答案有点太短,但他是正确的。您试图读取的是目录,而不是文件名。原因是(我假设)用于存储文件名的会话变量为空。是的,完全相同,但我在会话中设置了文件名,但没有设置,方法id也被调用了三次,不知道为什么。上传文件请查看我的更新。