万能表单解析工具在xheditor上传文件中的应用
利用JadePool中的万能表单解析工具cn.jadepool.web.ProcessForm可以轻松解析表单提交的全部信息，甚至可以轻松获取一个未知结构的表单由那些字段组成。以下是在xheditor上传图片文件中的应用。
1、解析表单：
String allowFilter = "bmp|png|jpg|gif|swf|wma|mp3|avi|doc|psd|zip|jar|war|pdf|mpg|txt|sql";
ProcessForm form = ProcessForm.instance();//cn.jadepool.web.ProcessForm
form.setFilter(allowFilter);
form.setAllowFileSize(allowSize);
form.parse(request);
Map _m = form.getRecordFullInfo();
System.out.println(_m);// {filedata_filename=5830.jpg, filedata_ext=jpg, filedata_contenttype=image/pjpeg, filedata_size=154470, filedata_height=768, filedata_width=1366, filedata=[B@3eba9ff8, filedata_originfilename=5830.jpg}
通过System.out.println(_m);语句轻松地将xheditor上传文件的表单结构呈现了出来，Map对象_m中的键名就是原表单中的字段名。
2、保存上传的文件
String realPath = application.getRealPath("") + java.io.File.separator + "page" + java.io.File.separator + "upload";//
String webPath = request.getContextPath() + "/page/upload";//
String filename = (String) _m.get("filedata_filename");
//Integer fileSize = (Integer) _m.get("filedata_size");
File f = new File(realPath);
f.mkdirs();
f = new File(realPath + java.io.File.separator + filename);
byte[] filedata = (byte[]) _m.get("filedata");
form.writeFile(filedata, f);
3、将上传的信息保存到数据库中
//以下代码，将上传的文件信息保存到数据库picture表中
//Jade j = new Jade();
//_m.put("news_file", urlFile);
//j.save("picture", _m);
//j.commit();
附：在线编辑文件newsdoc.html和处理上传文件upload.jsp完整的源代码
1、newsdoc.html文件
<!DOCTYPE html>
<!--
万能表单解析工具cn.jadepool.web.ProcessForm在xheditor上传文件中的应用
胡开明
2015-03-27
xheditor在线编辑器，请到相关网站下载
-->
<html>
<head>
<title>万能表单解析工具cn.jadepool.web.ProcessForm在xheditor上传文件中的应用</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="Content-Type" content="text/html; charset=GBK" />
<!--请修改以下三个文件的路径-->
<script type="text/javascript" src="../resources/xheditor/1.2.1/jquery/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="../resources/xheditor/1.2.1/xheditor-1.2.1.min.js"></script>
<script type="text/javascript" charset="utf-8" src="../resources/xheditor/1.2.1/xheditor_lang/zh-cn.js"></script>
<script type="text/javascript">
$(pageInit);
function pageInit() {
$('#elm1').xheditor({upLinkUrl: "upload.jsp", upLinkExt: "zip,rar,txt", upImgUrl: "upload.jsp", upImgExt: "jpg,jpeg,gif,png", onUpload: insertUpload});
}
function insertUpload(arrMsg) {
//alert("上传成功！");
}
</script>
</head>
<body>
<textarea id="elm1" name="elm1" style="width: 800px;height:300px;">请上传文件进行测试...</textarea>
</body>
</html>
2、处理表单上传文件upload.jsp
<%--
万能表单解析工具ProcessForm类的应用，在工程中下载并添加jadepool-1.XX.jar包
Document : upload.jsp
Created on : 2015-3-26, 22:48:02
Author : 胡开明
Description: 专为xhEditor编写的上传处理文件，为了兼容xheditor,本JSP文件编码采用utf-8,如果用GBK很可能导致上传接口失败。
--%>
<%@page contentType="text/html" pageEncoding="utf-8"%>
<%@page import="java.io.File,java.util.*,cn.jadepool.sql.*,cn.jadepool.web.*,cn.jadepool.util.*" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charsetutf-8">
<title>JSP Page</title>
<%
String realPath = application.getRealPath("") + java.io.File.separator + "page" + java.io.File.separator + "upload";//
String webPath = request.getContextPath() + "/page/upload";//
boolean isTooBig = false;
int allowSize = 20000000;//20m
String returnMsg = "{err:'',msg:''}";//xhEditor规定的返回字符串JSON格式
try {
String allowFilter = "bmp|png|jpg|gif|swf|wma|mp3|avi|doc|psd|zip|jar|war|pdf|mpg|txt|sql";
ProcessForm form = ProcessForm.instance();//cn.jadepool.web.ProcessForm
form.setFilter(allowFilter);
form.setAllowFileSize(allowSize);
form.parse(request);
Map _m = form.getRecordFullInfo();
//System.out.println(_m);// {filedata_filename=5830.jpg, filedata_ext=jpg, filedata_contenttype=image/pjpeg, filedata_size=154470, filedata_height=768, filedata_width=1366, filedata=[B@3eba9ff8, filedata_originfilename=5830.jpg}
String filename = (String) _m.get("filedata_filename");
//Integer fileSize = (Integer) _m.get("filedata_size");
File f = new File(realPath);
f.mkdirs();
f = new File(realPath + java.io.File.separator + filename);
byte[] filedata = (byte[]) _m.get("filedata");
form.writeFile(filedata, f);
String urlFile = webPath + "/" + filename;
returnMsg = "{err:'',msg:'" + urlFile + "'}";//xhEditor规定的返回字符串JSON格式
//以下代码，将上传的文件信息保存到数据库picture表中
//Jade j = new Jade();
//_m.put("news_file", urlFile);
//j.save("picture", _m);
//j.commit();
} catch (Exception e) {
e.printStackTrace();
} finally {
out.println(returnMsg);
}
%>
</head>
<body>
</body>
</html>
以下是上传图片的效果
