SpringMVC 上传文件<8>
2017-08-17 本文已影响10人
天空在微笑
1.在spring配置文件中添加
<!-- 不使用commons 上传包配置 -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding" value="UTF-8" />
<property name="maxUploadSize" value="5400000" />
<property name="uploadTempDir" value="image" />
</bean>
- Html5FileUploadController.java
package com.company.combine.controller;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import com.company.combine.model.Product;
import com.company.combine.model.UploadFile;
import org.apache.commons.logging.Log;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.multipart.MultipartFile;
@Controller
public class Html5FileUploadController {
private static final Log logger = org.apache.commons.logging.LogFactory.getLog(Html5FileUploadController.class);
@RequestMapping(value = "/html5")
public String inputProduct(Model model) {
System.out.println("----------inputProduct------------:");
model.addAttribute("product", new Product());
return "html5";
}
@RequestMapping(value = "/file_upload", method = RequestMethod.POST)
public void saveFile(HttpServletRequest httpServletRequest, @ModelAttribute UploadFile uploadFile,
BindingResult bindingResult, Model model) {
System.out.println("----------saveFile------------:");
MultipartFile multipartFile = uploadFile.getMultipartFile();
String fileName = multipartFile.getOriginalFilename();
// String fileNames =fileName.substring(fileName.lastIndexOf("\\"));
// File imageFile = new
// File(httpServletRequest.getContextPath()+"/image",fileName);
File imageFile = new File(httpServletRequest.getServletContext().getRealPath("/image"),fileName);
String path = httpServletRequest.getServletContext().getRealPath("/image");
if (!new File(path).exists()) {
new File(path).mkdir();
}
System.out.println("fileName:"+fileName);
System.out.println("multipartFile.getName():"+multipartFile.getName());
System.out.println("path:"+path);
System.out.println("imageFile.getAbsolutePath():"+imageFile.getAbsolutePath());
try {
multipartFile.transferTo(imageFile);
// model.addAttribute("image", imageFile.getAbsolutePath().toString());
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
3.UploadFile.java
package com.company.combine.model;
import org.springframework.web.multipart.MultipartFile;
public class UploadFile {
public MultipartFile getMultipartFile() {
return multipartFile;
}
public void setMultipartFile(MultipartFile multipartFile) {
this.multipartFile = multipartFile;
}
private MultipartFile multipartFile;
}
4.html5.jsp
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="GB2312"%>
<!DOCTYPE html >
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type="text/javascript">
var totalFileLength,totalUploaded,fileCount,filesUploaded;
function debug(s){
var debug = document.getElementById('debug');
if(debug){
debug.innerHTML = debug.innerHTML+'</br>'+s;
}
}
function onUploadComplete(e){
totalUploaded += document.getElementById('files').files[filesUploaded].size;
filesUploaded++;
debug('complete'+filesUploaded+'of'+fileCount);
debug('totalUploaded:'+totalUploaded);
debug('filesUploaded:'+filesUploaded);
if(filesUploaded < fileCount){
uploadNext();
}else{
var bar = document.getElementById('bar');
bar.style.width = '100%';
bar.innerHTML = '100% complete';
alert('Finished uploaded file(s))');
}
}
function onFileSelect(e){
var files = e.target.files;
var output = [];
fileCount = files.length;
debug('fileCount:'+fileCount);
totalFileLength = 0;
for(var i=0;i<fileCount;i++){
var file = files[i];
output.push(file.name,'(',file.size,'bytes,',file.lastModifiedDate.toLocaleDateString(),')');
output.push('<br/>');
debug('add'+file.size);
totalFileLength += file.size;
document.getElementById('selectedFiles').innerHTML = output.join('');
debug('totalFileLength:'+totalFileLength);
document.getElementById('selectedFiles').innerHTML = output.join('');
debug('totalFileLength:'+totalFileLength);
}
}
function onUploadProgress(s){
if(e.lengthComputable){
var percentComplete = parseInt((e.loaded + totalUploaded)*100/totalFileLength);
var bar = document.getElementById('bar');
bar.style.width = percentComplete + '%';
bar.innerHTML = percentComplete + '%complete';
}else{
debug('unable to complete');
}
}
function onUploadFailed(e){
alert("Error uploading file");
}
function uploadNext(){
var xhr = new XMLHttpRequest();
var fd = new FormData();
var file = document.getElementById('files').files[filesUploaded];
fd.append("multipartFile",file);
xhr.upload.addEventListener("progress",onUploadProgress,false);
xhr.addEventListener("load",onUploadComplete,false);
xhr.addEventListener("error",onUploadFailed,false);
xhr.open("post","file_upload");
debug('uploading'+file.name);
xhr.send(fd);
}
function startUpload(){
totalUploaded = filesUploaded = 0;
uploadNext();
}
window.onload = function(){
document.getElementById('files').addEventListener('change',onFileSelect,false);
document.getElementById('uploadedButton').addEventListener('click',startUpload,false);
}
</script>
<title>登录</title>
</head>
<body>
<h1>Multiple file uploads with progress bar</h1>
<div id='progressBar' style='height:20px;border:2px solid green'></div>
<div id='bar' style='height:100%;background:#33dd33;width:0%'>
</div>
<form >
<input id="files" type="file" multiple="multiple"/><br>
<output id='selectedFiles'></output>
<input id="uploadedButton" type="button" value="Upload"/><br>
</form>
<div id='debug' style='height:100px;border:2px solid green;overflow:auto'>
</div>
</body>
</html>
