java and dwr implement sysnchronized upload files

FileUpload\img\atta.gif
..........\index.jsp
..........\js\upload.js
..........\..p\FileUploadForm.jsp
..........\...\Success.jsp
..........\META-INF\MANIFEST.MF
..........\WEB-INF\classes\com\blue\beans\ProgressInfo.class
..........\.......\.......\...\....\.....\ProgressInfo.java
..........\.......\.......\...\....\.....\Test.class
..........\.......\.......\...\....\.....\Test.java
..........\.......\.......\...\....\servlet\FileUploadServlet.class
..........\.......\.......\...\....\.......\FileUploadServlet.java
..........\.......\.......\...\....\.......\NextServlet.class
..........\.......\.......\...\....\.......\NextServlet.java
..........\.......\.......\...\....\util\UploadListener.class
..........\.......\.......\...\....\....\UploadListener.java
..........\.......\.......\...\....\....\Util.class
..........\.......\.......\...\....\....\Util.java
..........\.......\dwr.xml
..........\.......\ibm-web-bnd.xmi
..........\.......\ibm-web-ext.xmi
..........\.......\lib\commons-beanutils.jar
..........\.......\...\commons-collections.jar
..........\.......\...\commons-digester.jar
..........\.......\...\commons-fileupload-1.2.1.jar
..........\.......\...\commons-io-1.4.jar
..........\.......\...\commons-lang.jar
..........\.......\...\commons-logging.jar
..........\.......\...\commons-validator.jar
..........\.......\...\dwr2.jar
..........\.......\...\jakarta-oro.jar
..........\.......\struts-config.xml
..........\.......\web.xml
..........\.......\classes\com\blue\beans
..........\.......\.......\...\....\servlet
..........\.......\.......\...\....\util
..........\.......\.......\...\blue
..........\.......\.......\com
..........\.......\classes
..........\.......\lib
..........\img
..........\js
..........\jsp
..........\META-INF
..........\WEB-INF
FileUpload

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