uploadify3.2.1+struts 使用及问题总结

uploadify3.2.1下载地址：http://www.uploadify.com/download/ 点击打开链接

uploadify3.2.1英文文档说明：http://www.uploadify.com/documentation/ 点击打开链接

uploadify3.2.1中文文档说明：/article/10731138.html 点击打开链接

uploadify在线中文文档：http://slabs.sinaapp.com/uploadifydoc/ 点击打开链接

前端HTML代码：

<div id='uploadSoftwareDiv' class="upload_software hide">
<span style="color:#ff0000;"><input id='software' type='file' name='software' style="z-index: 101"></span>
<span style="color:#ff0000;"><div id="fileQueue" style="z-index: 101"></div></span>
<input id='uploadSoftware' class="uploadify-button" style="width: 120px; height: 32px; z-index: 101" type='button'
value='上传' /> <input id='cancleSoftware' class="uploadify-button" style="width: 120px; height: 32px; z-index: 101"
type='button' value='取消' />
</div>

JS代码：

$(function() {

//初始化控件

$('#software').uploadify({

'uploader' : 'softwareAction!uploadSoftware',// 上传文件到服务器的地址

'cancelImg' : getRootPath() + '/js/uploadify/cancel.png',

'fileDataName' : 'software',

'fileObjName' : 'software',

'queueID' : 'fileQueue',

'queueSizeLimit' : 1,

'displayData' : 'percentage',

'method' : 'post',

'folder' : '/data',

'auto' : false,

'buttonText' : '选择文件...',

'onUploadSuccess' : function(file, data, response) {// 单个文件上传成功触发

// data就是action中返回来的数据

},

'onQueueComplete' : function() {// 所有文件上传完成

$('#uploadSoftwareDiv').hide();

mask.hide();

alert("文件上传成功!");

},

'onUploadError' : function(file, errorCode, errorMsg, errorString) {

alert('The file ' + file.name + ' could not be uploaded: ' + errorString);

}

});

$("#uploadSoftware").on('click', function() {

$('#software').uploadify('settings', 'formData', {

'softwareId' : _this.id

});

$('#software').uploadify('upload', '*');//上传

});

function getRootPath() {

// 获取当前网址，如： http://localhost:8083/uimcardprj/share/meun.jsp
var curWwwPath = window.document.location.href;

// 获取主机地址之后的目录，如： uimcardprj/share/meun.jsp

var pathName = window.document.location.pathname;

var pos = curWwwPath.indexOf(pathName);

// 获取主机地址，如： http://localhost:8083
var localhostPaht = curWwwPath.substring(0, pos);

// 获取带"/"的项目名，如：/uimcardprj

var projectName = pathName.substring(0, pathName.substr(1).indexOf('/') + 1);

return (localhostPaht + projectName);

}

});

如果你要在上传的时候附加一些数据，就可以用$("#uploadSoftware").on('click', function() {

$('#software').uploadify('settings', 'formData', {

'softwareId' : _this.id

});

$('#software').uploadify('upload', '*');//上传</span>

});

之后使用$('#software').uploadify('upload', '*');这样才真正开始上传

后台java处理代码

import java.io.BufferedInputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.io.PrintWriter;

import java.util.Date;

import java.util.Map;

import java.util.UUID;

import javax.annotation.Resource;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import net.sf.json.JSONArray;

import net.sf.json.JSONObject;

import org.apache.struts2.ServletActionContext;

import org.apache.struts2.interceptor.ServletRequestAware;

import org.apache.struts2.interceptor.ServletResponseAware;

import org.apache.struts2.interceptor.SessionAware;

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

import org.springframework.context.annotation.Scope;

import org.springframework.stereotype.Controller;

import com.opensymphony.xwork2.ActionContext;

import com.opensymphony.xwork2.ActionSupport;

@Controller

@Scope("prototype")

public class SoftwareAction extends ActionSupport implements ServletResponseAware, ServletRequestAware, SessionAware {

private static final long serialVersionUID = -4887717911648338263L;

private HttpServletRequest request;// request

private HttpServletResponse response;// response

private Map<String, Object> session;

private File software;

private String softwareFileName;//注意这里是softwareFileName，由File software决定

private String filePath = "D:\\upload\\";

public void uploadSoftware() throws IOException {

JSONObject jsonObject = new JSONObject();

jsonObject.put("imp", "导入失败！");

PrintWriter pw = null;

// String path =

// ServletActionContext.getServletContext().getRealPath("/upload");

File file = new File(filePath);

if (!file.exists()) {

file.mkdir();

}

try {

if (this.software != null) {

File f = this.getSoftware();

String fileName = UUID.randomUUID().toString();

FileInputStream inputStream = new FileInputStream(f);

String name = fileName + softwareFileName.substring(softwareFileName.lastIndexOf("."));

FileOutputStream outputStream = new FileOutputStream(filePath + name);

byte[] buf = new byte[1024];

int length = 0;

while ((length = inputStream.read(buf)) != -1) {

outputStream.write(buf, 0, length);

}

inputStream.close();

outputStream.flush();

outputStream.close();

jsonObject.put("imp", "导入成功！");

}

} catch (Exception e) {

e.printStackTrace();

}

response.setContentType("text/html;charset=UTF-8");

pw = response.getWriter();

pw.print(jsonObject);

}

public void downloadSoftware() {

String softwareId = request.getParameter("softwareId");

SoftwareAddress softwareAddress = softwareAddressService.getLatestSoftwareAddress(new Integer(softwareId));

if (null != softwareAddress) {

// String path =

// ServletActionContext.getServletContext().getRealPath("/upload");

String filePath = this.filePath + softwareAddress.getAddress();

try {

File file = new File(filePath);

String ext = softwareAddress.getAddress().substring(softwareAddress.getAddress().lastIndexOf(".") + 1)

.toUpperCase();

Softwares softwares = softwareAddress.getSoftwares();

String fileName = softwares.getSoftwarename() + "_" + softwares.getSoftwaretype() + "_"

+ softwares.getVersion() + "." + ext;

InputStream fis = new BufferedInputStream(new FileInputStream(filePath));

byte[] buffer = new byte[fis.available()];

fis.read(buffer);

fis.close();

response.reset();

response.setContentType("text/plain");

response.setHeader("Content-disposition", "attachment;filename="

+ new String(fileName.getBytes(), "ISO8859-1"));

OutputStream outputStream = response.getOutputStream();

outputStream.write(buffer);

outputStream.close();

} catch (Exception e) {

e.printStackTrace();

}

}

}

@Resource

public void setSoftwareService(SoftwareService softwareService) {

this.softwareService = softwareService;

}

public void setServletResponse(HttpServletResponse response) {

this.response = response;

this.response.setContentType("text/html;charset=UTF-8");

}

public void setServletRequest(HttpServletRequest request) {

this.request = request;

}

public File getSoftware() {

return software;

}

public void setSoftware(File software) {

this.software = software;

}

public String getSoftwareFileName() {

return softwareFileName;

}

public void setSoftwareFileName(String softwareFileName) {

this.softwareFileName = softwareFileName;

}

public String getFilePath() {

return filePath;

}

public void setFilePath(String filePath) {

this.filePath = filePath;

}

public void setSession(Map<String, Object> arg0) {

this.session = arg0;

}

}

<input id='software' type='file' name='software' style="z-index: 101"> 和'fileDataName' : 'software', 'fileObjName' : 'software',与private File software;要保持input的id、fileData、fileObjName、File一致！！！

问题：上传小文件时没问题，但是上传稍大文件时uploadify报 IO Error。

原因：可能是tomcat限制了上传文件的大小。

解决方案：在struts.xml中配置 <constant name="struts.multipart.maxSize" value="2000000000" /> value可根据需要配置大小（单位：bit）