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本篇文章是对Jquery中的LigerUI实现文件上传的方法,进行了分析介绍,需要的朋友可以参考下
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一、在Head中加入
script src="../lib/js/ajaxfileupload.js" type="text/javascript"/script
script src="../lib/js/ligerui.expand.js" type="text/javascript"/script
二、Html中的Div代码
复制代码 代码如下:
div id="AppendBill_Div" style="display:none;" %-- 上传 - 单 --%
table style="height:100%;width:100%"
tr style="height:40px"
td style="width:20%"
图标:
/td
tdinput type="file" style="width:200px" id="fileupload" name="fileupload"/
/td
/tr
/table
/div
三、Js中-写的是关键部分,会LigerUI的朋友-你懂得
1、grid中添加项【存地址字段】
{ display: "扫描件", name: "AppendBillPath", width: 120, type: "text", align: "left" }
2、Form可添加项【存地址和弹出选择框】
{ name: "AppendBillPath1", type: "hidden" }, // --上传-【5】--
{ display: "扫描件", name: "AppendBillPath", comboboxName: "AppendBillPath2", newline: true, labelWidth: 100, width: 150, space: 30, type: "select", options: {}} // --上传-【6】--
$.ligerui.get("AppendBillPath2").set('onBeforeOpen', f_selectAppendBillPath_1) // 【扫描件】 // --上传-【7】--
3、事件
// #region ======================================= 【上传扫描件窗口】 // --上传-【8】--
复制代码 代码如下:
var AppendBillPathDetail = null;
function f_selectAppendBillPath_1() {
var imageurl = $("#AppendBill").val();
var AppendBill_Id = $("#AppendBill").val(); // 单号
if (imageurl.length == 0) {
LG.showError("您没有输入单号,请输入随单号!");
return;
}
if (AppendBillPathDetail) {
AppendBillPathDetail.show();
}
else {
AppendBillPathDetail = $.ligerDialog.open({
target: $("#AppendBill_Div"), title: '添加图标',
width: 360, height: 170, top: 170, left: 280, // 弹出窗口大小
buttons: [
{ text: '上传', onclick: function () { AppendBillPath_save(); } },
{ text: '取消', onclick: function () { AppendBillPathDetail.hide(); } }
]
});
}
}
function AppendBillPath_save()
{
var imgurl = $("#fileupload").val();
// var filehelpcode = $("#filehelpcode").val();
var extend = imgurl.substring(imgurl.lastIndexOf("."), imgurl.length);
extend = extend.toLowerCase();
if (extend == ".jpg" || extend == ".jpeg" || extend == ".png" || extend == ".gif" || extend == ".bmp")
{
}
else
{
LG.showError("请上传jpg,jpep,png,gif,bmp格式的图片文件");
return;
}
var imageurl = $("#AppendBill").val(); // extend
alert(imageurl);
$.ajaxFileUpload({
url: "../handle/ImageUpload.aspx?imageurl=" + imageurl, // --上传-【9】-- aspx文件
secureuri: false,
fileElementId: "fileupload", //Input file id
dataType: "text",
success: function (data, status)
{
// ----------------- // 保存路径
// $("#AppendBillPath2").val(Data);
LG.tip(data);
f_reload();
},
error: function (data, status, e) {
LG.showError(data);
}
});
}
// #endregion
四、后台cs,写一句关键的,可以返回参数,前台提示
string url = Server.MapPath("/Image/" + gfilename + filenameext); // 执行上传操作
/* jQuery实现文件上传,参考例子如下:
package com.kinth.hddpt.file.action;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONArray;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;
import org.hibernate.criterion.MatchMode;
import org.hibernate.criterion.Order;
import org.hibernate.criterion.Restrictions;
import com.gdcn.bpaf.common.base.search.MyCriteria;
import com.gdcn.bpaf.common.base.search.MyCriteriaFactory;
import com.gdcn.bpaf.common.base.service.BaseService;
import com.gdcn.bpaf.common.helper.PagerList;
import com.gdcn.bpaf.common.helper.WebHelper;
import com.gdcn.bpaf.common.taglib.SplitPage;
import com.gdcn.bpaf.security.model.LogonVO;
import com.gdcn.components.appauth.common.helper.DictionaryHelper;
import com.kinth.common.base.action.BaseAction;
import com.kinth.hddpt.file.action.form.FileCatalogForm;
import com.kinth.hddpt.file.model.FileCatalog;
import com.kinth.hddpt.file.service.FileCatalogService;
import com.kinth.hddpt.file.util.MyZTreeNode;
/**
* p
* description: “文件上传的Struts层请求处理类”
* /p
* @date : 2013-1-14
*/
public class FileCatalogAction extends BaseActionFileCatalog {
@SuppressWarnings("unused")
private static Log log = LogFactory.getLog(FileCatalogAction.class); // 日志记录
private FileCatalogService fileCatalogService;
// 删除记录的同时删除相应文件
public ActionForward fileDelete(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
String[] id = request.getParameterValues("resourceId");
if (id != null id[0].contains(",")) {
id = id[0].split(",");
}
String[] fileUrls = new String[id.length];
for (int j = 0; j id.length; j++) {
fileUrls[j] = fileCatalogService.findObject(id[j]).getFileUrl();
if (!isEmpty(fileUrls[j])) {
// 如果该文件夹不存在则创建一个uptext文件夹
File fileup = new File(fileUrls[j]);
if (fileup.exists() || fileup != null) {
fileup.delete();
}
}
fileCatalogService.deleteObject(id[j]);
}
setAllActionInfos(request);
return list(mapping, form, request, response);
}
@Override
public ActionForward save(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
String id = request.getParameter("resourceId");
Boolean fileFlag = Boolean.valueOf(request.getParameter("fileFlag"));
if(fileFlag != null fileFlag == true){
return super.save(mapping, form, request, response);
}else{
String fileUrl = this.fileUpload(form, request, id, fileFlag);
response.setContentType("text/html");
response.setCharacterEncoding("GBK");
response.setHeader("Charset", "GBK");
response.setHeader("Cache-Control", "no-cache");
response.getWriter().write(fileUrl);
response.getWriter().flush();
}
return null;
}
@SuppressWarnings("unchecked")
public String fileUpload(ActionForm form,HttpServletRequest request,String id,Boolean fileFlag) throws FileNotFoundException, IOException{
request.setCharacterEncoding("GBK");
String basePath = getServlet().getServletConfig().getServletContext().getRealPath("")+"/";
String filePath = "uploads/"; // 获取项目根路径 ;
/*注释部分对应jquery upload uploadify插件的后台代码,只是还存在编码问题,默认为utf-8
String savePath = getServlet().getServletConfig().getServletContext().getRealPath(""); // 获取项目根路径
savePath = savePath + "\\uploads\\";
//读取上传来的文件信息
HashtableString, FormFile fileHashtable = form.getMultipartRequestHandler().getFileElements();
EnumerationString enumeration = fileHashtable.keys();
enumeration.hasMoreElements();
String key = (String) enumeration.nextElement();
FormFile formFile = (FormFile)fileHashtable.get(key);
String filename = formFile.getFileName().trim(); //文件名
filename = new EncodeChange().changeCode(filename);
String filetype = filename.substring(filename.lastIndexOf(".") + 1);//文件类型
savePath = savePath+filetype+"\\";
System.out.println("path:"+savePath);
String realPath = savePath + filename; //真实文件路径
//如果该文件夹不存在则创建一个文件夹
File fileup = new File(savePath);
if(!fileup.exists()||fileup==null){
fileup.mkdirs();
}
if (!filename.equals("")) {
// 在这里上传文件
InputStream is = formFile.getInputStream();
OutputStream os = new FileOutputStream(realPath);
int bytesRead = 0;
byte[] buffer = new byte[8192];
while ((bytesRead = is.read(buffer, 0, 8192)) != -1) {
os.write(buffer, 0, bytesRead);
}
os.close();
is.close();
//如果是修改操作,则删除原来的文件
String id = request.getParameter("resourceId");
if (!isEmpty(id)) {
FileCatalog fileCatalog = fileCatalogService.findObject(id);
String fileUrl = fileCatalog.getFileUrl();
if (!isEmpty(fileUrl)) {
File filedel = new File(fileUrl);
if(filedel.exists()||filedel!=null){
filedel.delete();
}
}
request.setAttribute("entity", fileCatalog);
}
response.getWriter().print(realPath);// 向页面端返回结果信息
}*/
// 读取上传来的文件信息
HashtableString, FormFile fileHashtable = form.getMultipartRequestHandler().getFileElements();
EnumerationString enumeration = fileHashtable.keys();
enumeration.hasMoreElements();
String key = (String) enumeration.nextElement();
FormFile formFile = (FormFile) fileHashtable.get(key);
String filename = formFile.getFileName().trim(); // 文件名
String filetype = filename.substring(filename.lastIndexOf(".") + 1);// 文件类型
Integer fileSize = formFile.getFileSize();
filePath += Calendar.getInstance().get(Calendar.YEAR)+"/"+filetype+"/" ;
String realPath = basePath+filePath+filename; // 真实文件路径
if (!filename.equals("")) {
// 如果是修改操作,则删除原来的文件
if (!isEmpty(id)) {
FileCatalog fileCatalog = fileCatalogService.findObject(id);
String fileUrl = fileCatalog.getFileUrl();
if (!isEmpty(fileUrl)) {
fileUrl = basePath + fileUrl;
File filedel = new File(fileUrl);
if (filedel.exists() || filedel != null) {
filedel.delete();
}
}
request.setAttribute("entity", fileCatalog);
}
// 如果该文件夹不存在则创建一个文件夹
File fileup = new File(basePath+filePath);
if (!fileup.exists() || fileup == null) {
fileup.mkdirs();
}
// 在这里上传文件
InputStream is = formFile.getInputStream();
OutputStream os = new FileOutputStream(realPath);
int bytesRead = 0;
byte[] buffer = new byte[8192];
while ((bytesRead = is.read(buffer, 0, 8192)) != -1) {
os.write(buffer, 0, bytesRead);
}
os.close();
is.close();
}
filePath += filename;
String result = "{\"fileName\":\""+filename+"\",\"fileType\":\""+filetype+"\",\"fileSize\":"+fileSize+",\"fileUrl\":\""+filePath+"\"}";
return result;
}
public FileCatalogService getFileCatalogService() {
return fileCatalogService;
}
public void setFileCatalogService(FileCatalogService fileCatalogService) {
this.fileCatalogService = fileCatalogService;
}
}
ajax的表单提交只能提交data数据到后台,没法实现file文件的上传还有展示进度功能,这里用到form.js的插件来实现,搭配css样式简单易上手,而且高大上,推荐使用。
需要解释下我的结构, #upload-input-file 的input标签是真实的文件上传按钮,包裹form标签后可以实现上传功能, #upload-input-btn 的button标签是展示给用户的按钮,因为需要样式的美化。上传完成生成的文件名将会显示在 .upload-file-result 里面, .progress 是进度条的位置,先让他隐藏加上 hidden 的class, .progress-bar 是进度条的主体, .progress-bar-status 是进度条的文本提醒。
去掉hidden的class,看到的效果是这样的
[图片上传失败...(image-2c700a-1548557865446)]
将上传事件绑定在file的input里面,绑定方式就随意了。
var progress = $(".progress-bar"), status = $(".progress-bar-status"), percentVal = '0%'; //上传步骤 $("#myupload").ajaxSubmit({ url: uploadUrl, type: "POST", dataType: 'json', beforeSend: function () { $(".progress").removeClass("hidden"); progress.width(percentVal); status.html(percentVal); }, uploadProgress: function (event, position, total, percentComplete) { percentVal = percentComplete + '%'; progress.width(percentVal); status.html(percentVal); console.log(percentVal, position, total); }, success: function (result) { percentVal = '100%'; progress.width(percentVal); status.html(percentVal); //获取上传文件信息 uploadFileResult.push(result); // console.log(uploadFileResult); $(".upload-file-result").html(result.name); $("#upload-input-file").val(''); }, error: function (XMLHttpRequest, textStatus, errorThrown) { console.log(errorThrown); $(".upload-file-result").empty(); } });
[图片上传失败...(image-3d6ae0-1548557865446)]
[图片上传失败...(image-9f0adf-1548557865446)]
更多用法可以 参考官网