spring MVC + bootstrap实现文件上传示例（带进度条）

最近学习了bootstrap，有结合了spring MVC写了个文件上传的示例，留做笔记，废话不多说，直接上代码

监听器类FileUploadProgressListener.Java

package com.gpl.web.listener;

import javax.servlet.http.HttpSession;

import org.apache.commons.fileupload.ProgressListener;

import org.springframework.stereotype.Component;

import com.gpl.web.utils.Progress;

@Component

public class FileUploadProgressListener implements ProgressListener{

private HttpSession session;

public void setSession(HttpSession session){

this.session = session;

Progress status = new Progress();

session.setAttribute("status", status);

}

@Override

public void update(long bytesRead, long contentLength, int items) {

Progress status = (Progress) session.getAttribute("status");

status.setBytesRead(bytesRead);

status.setContentLength(contentLength);

status.setItems(items);

}

CustomerMyltipartResolver.java

package com.gpl.web.listener;

import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.fileupload.FileItem;

import org.apache.commons.fileupload.FileUpload;

import org.apache.commons.fileupload.FileUploadBase;

import org.apache.commons.fileupload.FileUploadException;

import org.apache.commons.fileupload.servlet.ServletFileUpload;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.web.multipart.MaxUploadSizeExceededException;

import org.springframework.web.multipart.MultipartException;

import org.springframework.web.multipart.commons.CommonsMultipartResolver;

public class CustomMultipartResolver extends CommonsMultipartResolver{

@Autowired

private FileUploadProgressListener progressListener;

public void setFileUploadProgressListener(FileUploadProgressListener progressListener){

this.progressListener = progressListener;

}

public MultipartParsingResult parsingResult(HttpServletRequest request){

String encoding = determineEncoding(request);

FileUpload fileUpload = prepareFileUpload(encoding);

progressListener.setSession(request.getSession());

fileUpload.setProgressListener(progressListener);

try{

List<FileItem> fileItems = ((ServletFileUpload) fileUpload).parseRequest(request);

return parseFileItems(fileItems, encoding);

}catch(FileUploadBase.SizeLimitExceededException ex){

throw new MaxUploadSizeExceededException(fileUpload.getSizeMax(), ex);

}catch (FileUploadException e) {

throw new MultipartException("异常",e);

}

进度实体类Progress.java

spring MVC + bootstrap实现文件上传示例（带进度条）

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