安道生練功房 - 分享經驗，累積智慧

lionsgogo

請問如果將檔案上傳後

如何查詢<將檔案名稱顯示出來>

還有怎麼寫一個網頁

將查詢到想要的檔案下載下來

謝謝你

幫這我很大

andowson

lionsgogo wrote:org.apache.jasper.JasperException: Exception in JSP: /fileupload.jsp:74

71: fileName= FilenameUtils.getName(fileName);
72: out.println("fileName saved="+fileName+"<br>");
73: File uploadedFile = new File(saveDirectory, fileName);
74: item.write(uploadedFile);
75: }
76: }
77: }

為什麼會有錯誤??

lionsgogo您好:
請您檢查一下在您網頁的根目錄下有沒有/upload這個目錄？
如果沒有的話跑出來的錯誤訊息應該會類似這樣子

HTTP Status 500 -

--------------------------------------------------------------------------------

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: An exception occurred processing JSP page /fileupload.jsp at line 74

71: fileName= FilenameUtils.getName(fileName);
72: out.println("fileName saved="+fileName+"<br>");
73: File uploadedFile = new File(saveDirectory, fileName);
74: item.write(uploadedFile);
75: }
76: }
77: }

Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:505)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:404)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

root cause

java.io.FileNotFoundException: D:\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\examples\upload\2009蓮藕粉訂單.txt (系統找不到指定的路徑。)
java.io.FileOutputStream.open(Native Method)
java.io.FileOutputStream.<init>(Unknown Source)
java.io.FileOutputStream.<init>(Unknown Source)
org.apache.commons.fileupload.disk.DiskFileItem.write(DiskFileItem.java:416)
org.apache.jsp.fileupload_jsp._jspService(fileupload_jsp.java:133)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.20 logs.

--------------------------------------------------------------------------------

Apache Tomcat/6.0.20

請手動建立它，如果是在Linux上請設定為可寫入的權限(chmod 777 upload)。

mylipton

您好
想請問一下,我用fileupload_control.jsp這個範例程式傳上去的檔案的檔名會變成亂碼
有人知道這是哪裡有問題嗎

andowson

mylipton您好:
請問您是在什麼系統環境下執行所產生的問題? 請您提供更多資訊以便大家可以較快得幫忙您。例如
OS版本：
Servlet Container版本：
JDK版本：
上傳前檔案名稱：
上傳後檔案名稱：
參考資料：附上錯誤畫面及有錯誤的程式原始碼。
另外也請您參考本篇文章先前的討論內容尋找解答。

mylipton

andowson謝謝
我解決了上傳檔名的問題
雖然也不清楚怎麼改好的
就是把big5 UTF-8 那些亂試
終於試到可以

shyk

andowsonsup您好:
我用了fileupload_streaming.html後，檔案並沒上傳，瀏覽器直接顯示成:
------------------------------
isMultipart=true
fieldName=file
fileName=1.jpg
contentType=image/jpeg
isInMemory=true
sizeInBytes=782266
fileName to be saved=1.jpg
filedesc=
----------------------------------
不知問題要如何解決??
但我在TOMCAT上是OK的.
OS版本：windows
Servlet Container版本： glassfish
JDK版本： jdk1.6.0_21
上傳前檔案名稱： 1.jpg
上傳後檔案名稱： 1.jpg

andowson

shyk您好：
我下載的是本主題的第二篇文章的附檔fileupload_streaming.html及fileupload_streaming.jsp，然後安裝GlassFish Server Open Source Edition 3.0.1(安裝在C:\glassfishv3)，經過實際測試顯示的畫面如下：
------------------------------
isMultipart=true
fieldName=file
fileName=1.jpg
contentType=image/jpeg
fileName saved=1.jpg
filedesc=
------------------------------
檔案有出現在upload資料夾下，實際的路徑是：
C:\glassfishv3\glassfish\domains\domain1\applications\example\upload
所以，在GlassFish應該也是沒問題的。（其實，過程中有遇到一個小狀況就是，我用Eclipse把所有的檔案包成一個example.war，原本的example.war裡面明明有放一個upload的空目錄，但是佈署後，該目錄卻消失了，造成上傳失敗，手動建立後，再上傳就成功了）

比對你的輸出畫面文字跟我的不太相同，不知道您下載的是哪一篇文章的附檔？您可以檢查一下GlassFish的logs目錄下面的server.log，看看錯誤訊息為何，應該就可以知道問題在哪邊了。

aauggogogo

請問版大我下載第二個程式，但在上傳時如果檔名是中文會產生??的亂碼，檔案除了檔名外皆正常上傳。
也試過用不同的檔名編碼來儲存，但是都無法成功儲存中文檔名。

OS: solaris10
Web Server: Sun GlassFish Enterprise Server v2.1.1

感謝

andowson

aauggogogo您好:
我想您是由Windows環境將中文檔名的檔案上傳到Solaris的檔案系統，然後看到上傳的檔名變成??的樣子吧？

由於我目前手邊沒有Solaris 10的環境，所以我改用Linux環境的經驗來說明，供您參考：

首先，參考這篇文章JVM and OS System Properties，將下列的程式碼編譯成SysProperties.class

SysProperties.java:


import java.util.Properties;



public class SysProperties {

   public static void main(String[] args) {

      Properties sysProps = System.getProperties();

      sysProps.list(System.out);

   }

}

然後執行

java SysProperties

可以得到類似下面的輸出
smilie

Windows:
-- listing properties --
java.runtime.name=Java(TM) SE Runtime Environment
sun.boot.library.path=C:\Program Files\Java\jdk1.6.0_23\jre...
java.vm.version=19.0-b09
java.vm.vendor=Sun Microsystems Inc.
java.vendor.url=http://java.sun.com/
path.separator=;
java.vm.name=Java HotSpot(TM) Client VM
file.encoding.pkg=sun.io
user.country=TW
sun.java.launcher=SUN_STANDARD
sun.os.patch.level=Service Pack 3
java.vm.specification.name=Java Virtual Machine Specification
user.dir=D:\workspace\test
java.runtime.version=1.6.0_23-b05
java.awt.graphicsenv=sun.awt.Win32GraphicsEnvironment
java.endorsed.dirs=C:\Program Files\Java\jdk1.6.0_23\jre...
os.arch=x86
java.io.tmpdir=C:\DOCUME~1\user\LOCALS~1\Temp\
line.separator=

java.vm.specification.vendor=Sun Microsystems Inc.
user.variant=
os.name=Windows XP
sun.jnu.encoding=MS950
java.library.path=C:\Program Files\Java\jdk1.6.0_23\bin...
java.specification.name=Java Platform API Specification
java.class.version=50.0
sun.management.compiler=HotSpot Client Compiler
os.version=5.1
user.home=C:\Documents and Settings\user
user.timezone=
java.awt.printerjob=sun.awt.windows.WPrinterJob
file.encoding=MS950
java.specification.version=1.6
user.name=andowson
java.class.path=D:\workspace\test\bin
java.vm.specification.version=1.0
sun.arch.data.model=32
java.home=C:\Program Files\Java\jdk1.6.0_23\jre
java.specification.vendor=Sun Microsystems Inc.
user.language=zh
awt.toolkit=sun.awt.windows.WToolkit
java.vm.info=mixed mode, sharing
java.version=1.6.0_23
java.ext.dirs=C:\Program Files\Java\jdk1.6.0_23\jre...
sun.boot.class.path=C:\Program Files\Java\jdk1.6.0_23\jre...
java.vendor=Sun Microsystems Inc.
file.separator=\
java.vendor.url.bug=http://java.sun.com/cgi-bin/bugreport...
sun.cpu.endian=little
sun.io.unicode.encoding=UnicodeLittle
sun.desktop=windows
sun.cpu.isalist=pentium_pro+mmx pentium_pro pentium+m...

smilie

Linux:
[andowson@scm ~]$ java SysProperties
-- listing properties --
java.runtime.name=Java(TM) SE Runtime Environment
sun.boot.library.path=/usr/java/jdk1.6.0_23/jre/lib/i386
java.vm.version=19.0-b09
java.vm.vendor=Sun Microsystems Inc.
java.vendor.url=http://java.sun.com/
path.separator=:
java.vm.name=Java HotSpot(TM) Server VM
file.encoding.pkg=sun.io
user.country=TW
sun.java.launcher=SUN_STANDARD
sun.os.patch.level=unknown
java.vm.specification.name=Java Virtual Machine Specification
user.dir=/home/andowson
java.runtime.version=1.6.0_23-b05
java.awt.graphicsenv=sun.awt.X11GraphicsEnvironment
java.endorsed.dirs=/usr/java/jdk1.6.0_23/jre/lib/endorsed
os.arch=i386
java.io.tmpdir=/tmp
line.separator=

java.vm.specification.vendor=Sun Microsystems Inc.
os.name=Linux
sun.jnu.encoding=UTF-8
java.library.path=/usr/java/jdk1.6.0_23/jre/lib/i386/se...
java.specification.name=Java Platform API Specification
java.class.version=50.0
sun.management.compiler=HotSpot Tiered Compilers
os.version=2.6.18-194.11.1.el5
user.home=/home/andowson
user.timezone=
java.awt.printerjob=sun.print.PSPrinterJob
file.encoding=UTF-8
java.specification.version=1.6
user.name=andowson
java.class.path=.
java.vm.specification.version=1.0
sun.arch.data.model=32
java.home=/usr/java/jdk1.6.0_23/jre
java.specification.vendor=Sun Microsystems Inc.
user.language=zh
java.vm.info=mixed mode
java.version=1.6.0_23
java.ext.dirs=/usr/java/jdk1.6.0_23/jre/lib/ext:/us...
sun.boot.class.path=/usr/java/jdk1.6.0_23/jre/lib/resourc...
java.vendor=Sun Microsystems Inc.
file.separator=/
java.vendor.url.bug=http://java.sun.com/cgi-bin/bugreport...
sun.cpu.endian=little
sun.io.unicode.en

然後觀察file.encoding這個系統屬性的值，可以發現在Windows上是MS950，在Linux上是UTF-8，也就是說JVM預設的編碼將會採用MS950和UTF-8來處理檔案的I/O。故通常都會出現一些錯誤訊息，例如File Not Found或寫檔時，檔名看到一堆??和亂碼。

解決的方法：
目前我是將Linux的預設編碼改為Big5，修改/etc/sysconfig/i18n（ smilie

需要重開機reboot OS）:

LANG="zh_TW.Big5"

另外一種方式（沒試過請自行確認）是啟動JVM時加上-Dfile.encoding=MS950或-Dfile.encoding=Big5

參考資料：
http://stackoverflow.com/questions/361975/setting-the-default-java-character-encoding

aauggogogo

目前server字集為ISO646-US，由於某些原因，無法允許改變字集。
因為沒轍了，所以目前想改其他方式(資料庫存中文檔名)解決。
感謝andowson大大的回覆。

kisskevin524

可以請問一下可以把上傳路徑不要設在tomcat底下嗎?
可以自己設定檔案路徑嗎?
例如c:\upload
謝謝!!

andowson

中文檔名上傳後變成亂碼或??的問題可以透過指定來源表單的編碼方式修正，另外上傳目錄也可以修改到Tomcat以外的目錄，例如C:\upload下（目錄不存在時也可以自動建立）
首先將來源表單的charset設為UTF-8
fileupload_streaming.html:

<html>

<head>

<title>File Upload</title>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

</head>

<body>

檔案上傳



<form name="upload" enctype="multipart/form-data" method="post" action="fileupload_streaming.jsp"> 

上傳檔案： <input type="file" name="file" size="20" maxlength="20"> 

檔案說明： <input type="text" name="filedesc" size="30" maxlength="50"> 

 <input type="submit"value="上傳"> <input type="reset" value="清除"> 

</form>



</body>

</html>

處理上傳的程式加上request.setCharacterEncoding(encoding);
fileupload_streaming.jsp:

<%@ page contentType="text/html; charset=UTF-8"%>

<%@ page import="java.io.*"%>

<%@ page import="org.apache.commons.fileupload.*"%>

<%@ page import="org.apache.commons.fileupload.servlet.ServletFileUpload"%>

<%@ page import="org.apache.commons.fileupload.util.Streams"%>

<%@ page import="org.apache.commons.io.FilenameUtils"%>

<%

    //String saveDirectory = application.getRealPath("/upload");

    // Change save direcoty to another place outside of Tomcat

    String saveDirectory = "C:/upload";

    File dir = new File(saveDirectory);

    if (!dir.exists()) {

    	boolean success = dir.mkdir();

        if (success) {

            System.out.println("Directory: " + saveDirectory + " created");

        } 

    }

    

    out.println("file.encoding=" + System.getProperty("file.encoding") + "<br>");

        

    // Solve Chinese filename problem: use original form encoding

    String encoding = "UTF-8";

    request.setCharacterEncoding(encoding);

    

    // Check that we have a file upload request

    boolean isMultipart = ServletFileUpload.isMultipartContent(request);

    out.println("isMultipart=" + isMultipart + "<br>");

    

    // Create a new file upload handler

    ServletFileUpload upload = new ServletFileUpload();



    //Create a progress listener

    ProgressListener progressListener = new ProgressListener(){

       private long megaBytes = -1;

       public void update(long pBytesRead, long pContentLength, int pItems) {

           long mBytes = pBytesRead / 1000000;

           if (megaBytes == mBytes) {

               return;

           }

           megaBytes = mBytes;

           System.out.println("We are currently reading item " + pItems);

           if (pContentLength == -1) {

               System.out.println("So far, " + pBytesRead + " bytes have been read.");

           } else {

               System.out.println("So far, " + pBytesRead + " of " + pContentLength

                                  + " bytes have been read.");

           }

       }

    };

    upload.setProgressListener(progressListener);



    // Parse the request

    FileItemIterator iter = upload.getItemIterator(request);

    while (iter.hasNext()) {

        FileItemStream item = iter.next();

        String name = item.getFieldName();

        InputStream stream = item.openStream();

        if (item.isFormField()) {

            String value = Streams.asString(stream, encoding);

            out.println(name + "=" + value + "<br>");

        } else {

            System.out.println("File field " + name + " with file name "

                + item.getName() + " detected.");

            // Process the input stream

            String fieldName = item.getFieldName();

            String fileName = item.getName();

            String contentType = item.getContentType();

            out.println("fieldName=" + fieldName + "<br>");

            out.println("fileName=" + fileName + "<br>");

            out.println("contentType=" + contentType + "<br>");

            if (fileName != null && !"".equals(fileName)) {

                fileName = FilenameUtils.getName(fileName);

                out.println("fileName saved=" + fileName + "<br>");

                File uploadedFile = new File(saveDirectory, fileName);

                FileOutputStream uploadedFileStream = 

                    new FileOutputStream(uploadedFile);

                Streams.copy(stream, uploadedFileStream, true);

            }

        }

    }              

%>

kisskevin524

請問一下
大大有做過上傳過上百mb的檔案嗎
上傳大檔似乎會timeout
謝謝!!

andowson

實際測試上傳一個1GB多的檔案，確實會出現Read timed out的結果:

So far, 1069001476 of 1073742116 bytes have been read.

We are currently reading item 1

So far, 1070000168 of 1073742116 bytes have been read.

We are currently reading item 1

So far, 1071002992 of 1073742116 bytes have been read.

We are currently reading item 1

So far, 1072001684 of 1073742116 bytes have been read.

We are currently reading item 1

So far, 1073000376 of 1073742116 bytes have been read.

一月 16, 2012 2:25:28 上午 org.apache.catalina.core.StandardWrapperValve invoke

嚴重: Servlet.service() for servlet [jsp] in context with path [] threw exception [An exception occurred processing JSP page /fileupload_streaming.jsp at line 65



62:                 File uploadedFile = new File(saveDirectory, fileName);

63:                 FileOutputStream uploadedFileStream =

64:                     new FileOutputStream(uploadedFile);

65:                 Streams.copy(stream, uploadedFileStream, true);

66:             }

67:         }

68:     }





Stacktrace:] with root cause

java.net.SocketTimeoutException: Read timed out

        at java.net.SocketInputStream.socketRead0(Native Method)

        at java.net.SocketInputStream.read(Unknown Source)

        at java.net.SocketInputStream.read(Unknown Source)

        at org.apache.coyote.ajp.AjpProcessor.read(AjpProcessor.java:309)

        at org.apache.coyote.ajp.AjpProcessor.readMessage(AjpProcessor.java:364)

        at org.apache.coyote.ajp.AjpProcessor.receive(AjpProcessor.java:331)

        at org.apache.coyote.ajp.AbstractAjpProcessor.refillReadBuffer(AbstractAjpProcessor.java:576)

        at org.apache.coyote.ajp.AbstractAjpProcessor$SocketInputBuffer.doRead(AbstractAjpProcessor.java:1027)

        at org.apache.coyote.Request.doRead(Request.java:422)

        at org.apache.catalina.connector.InputBuffer.realReadBytes(InputBuffer.java:290)

        at org.apache.tomcat.util.buf.ByteChunk.substract(ByteChunk.java:429)

        at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:315)

        at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:200)

        at org.apache.commons.fileupload.MultipartStream$ItemInputStream.makeAvailable(MultipartStream.java:976)

        at org.apache.commons.fileupload.MultipartStream$ItemInputStream.read(MultipartStream.java:886)

        at java.io.InputStream.read(Unknown Source)

        at org.apache.commons.fileupload.util.Streams.copy(Streams.java:96)

        at org.apache.commons.fileupload.util.Streams.copy(Streams.java:66)

        at org.apache.jsp.fileupload_005fstreaming_jsp._jspService(fileupload_005fstreaming_jsp.java:125)

        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)

        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)

        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)

        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)

        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:928)

        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)

        at org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:333)

        at org.apache.catalina.ha.session.JvmRouteBinderValve.invoke(JvmRouteBinderValve.java:219)

        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)

        at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:200)

        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:539)

        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:298)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

        at java.lang.Thread.run(Unknown Source)

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: An exception occurred processing JSP page /fileupload_streaming.jsp at line 65

62: File uploadedFile = new File(saveDirectory, fileName);
63: FileOutputStream uploadedFileStream =
64: new FileOutputStream(uploadedFile);
65: Streams.copy(stream, uploadedFileStream, true);
66: }
67: }
68: }

Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:568)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:460)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
root cause

java.net.SocketTimeoutException: Read timed out
java.net.SocketInputStream.socketRead0(Native Method)
java.net.SocketInputStream.read(Unknown Source)
java.net.SocketInputStream.read(Unknown Source)
org.apache.coyote.ajp.AjpProcessor.read(AjpProcessor.java:309)
org.apache.coyote.ajp.AjpProcessor.readMessage(AjpProcessor.java:364)
org.apache.coyote.ajp.AjpProcessor.receive(AjpProcessor.java:331)
org.apache.coyote.ajp.AbstractAjpProcessor.refillReadBuffer(AbstractAjpProcessor.java:576)
org.apache.coyote.ajp.AbstractAjpProcessor$SocketInputBuffer.doRead(AbstractAjpProcessor.java:1027)
org.apache.coyote.Request.doRead(Request.java:422)
org.apache.catalina.connector.InputBuffer.realReadBytes(InputBuffer.java:290)
org.apache.tomcat.util.buf.ByteChunk.substract(ByteChunk.java:429)
org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:315)
org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:200)
org.apache.commons.fileupload.MultipartStream$ItemInputStream.makeAvailable(MultipartStream.java:976)
org.apache.commons.fileupload.MultipartStream$ItemInputStream.read(MultipartStream.java:886)
java.io.InputStream.read(Unknown Source)
org.apache.commons.fileupload.util.Streams.copy(Streams.java:96)
org.apache.commons.fileupload.util.Streams.copy(Streams.java:66)
org.apache.jsp.fileupload_005fstreaming_jsp._jspService(fileupload_005fstreaming_jsp.java:125)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.23 logs.

Apache Tomcat/7.0.23

實際上傳的檔案大小如下:

-rw-r--r-- 1 tomcat tomcat 1073094361 2012-01-16 02:25 ppsds.pgf

目前我的web.xml中設定如下:

<session-config>

        <session-timeout>10</session-timeout>

    </session-config>

目前我不確定是否跟session-timeout這個值有關係(10分鐘)，不過整個1GB檔案上傳的時間大約有花半小時以上，您可以試試看調整這個參數再測試看看。

羽小橘

andowson wrote:中文檔名上傳後變成亂碼或??的問題可以透過指定來源表單的編碼方式修正，另外上傳目錄也可以修改到Tomcat以外的目錄，例如C:\upload下（目錄不存在時也可以自動建立）
首先將來源表單的charset設為UTF-8
fileupload_streaming.html:
%>
[/code]

大大我想請問一下現在上傳檔案的姓名根據檔案原本的名稱，也就是說相同的名稱，會覆蓋同一個名稱，可以變成自己輸入檔案名稱嗎?

檔案說明的部分有什麼作用嗎?

上傳之後的訊息 (是哪一段程式碼作用) 想再增加一個按鍵返回原頁面

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