📄 superupload.java
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package com.ntsky.common;
import java.util.Random;
public class SuperUpload {
public String websitePath; //网站在服务器上的相对路径，以"/"开头
public String savePath; //文件保存在服务器上的upfiles目录里的路径
public String saveFileName; //指定的文件保存名
public String fileNameMode; //文件名生成模式
public String saveTableName; //文件保存在数据库中的表名
public String saveFieldName; //文家保存在数据中的字段名
public String imgPath; //图片显示区显示图片的路径,服务器上upfiles里的路径，如果为空，例如ad/
public String imgFileName; //图片显示区 显示图片的文件名
public int imgWidth; //显示图片的宽度
public int imgMaxWidth; //显示的图片的最大宽度，用来控制版面（暂未生效）
public int imgHeight; //显示图片的高度
public int imgBorder; //显示的图片的边框
public String imgBorderColor; //显示的图片的边框的颜色
public String upFileInputName; //文件名显示框的Name
public String upFileInputTitle; //文件名显示框的Title，用于客户端数据验证错误提示
public String upFileName; //文件名显示框中显示的内容（一般是文件名）
public boolean showImgZone; //是否显示图片显示区
public boolean showUpFileInputZone; //是否显示文件名显示框
public int tableWidth; //整个上传表格的宽度
public int upFileInputWidth; //文件名显示框的宽度
public int fileInputWidth; //文件选取框的宽度
public String allowedFileExt; //允许上传文件的扩展名，逗号分隔
public String deniedFileExt; //限制上传文件的扩展名，逗号分隔
public long maxFileSize; //允许上传文件的最大长度
public boolean generateJavascript; //是否生成javascript函数部分
public static String MODE_CREATE = "0"; //生成新的
public static String MODE_SOURCE = "1"; //使用上传的文件名，但不能有中文
public SuperUpload() {
this.websitePath = "/";
this.savePath = "";
this.saveFileName = "";
this.fileNameMode = MODE_CREATE;
this.saveTableName = "";
this.saveFieldName = "";
this.imgPath = "";
this.imgFileName = "";
this.imgWidth = 0;
this.imgMaxWidth = 0;
this.imgHeight = 0;
this.imgBorder = 0;
this.imgBorderColor = "000000";
this.upFileInputName = "upfile";
this.upFileInputTitle = "上传文件";
this.upFileName = "";
this.showImgZone = true;
this.showUpFileInputZone = true;
this.tableWidth = 280;
this.upFileInputWidth = 233;
this.fileInputWidth = 200;
this.allowedFileExt = "";
this.deniedFileExt = "";
this.maxFileSize = 10240000L;
this.generateJavascript = true;
}
/*生成文件上传的显示界面*/
public String generateFileUploadInterface() {
String strFileUpload = "";
String strImgWidthText = (imgWidth == 0) ? "" : " width=" + imgWidth;
String strImgHeightText = (imgHeight == 0) ? "" : " height=" + imgHeight;
String strImg = strImgWidthText + strImgHeightText;
String strShowImgZone = showImgZone ? "Y" : "N";
String strShowUpFileInputZone = showUpFileInputZone ? "Y" : "N";
Random rnd = new Random();
int randomNumber = 1000 + rnd.nextInt(9000);
String upFileDivName = "upFileDiv_" + randomNumber;
if(generateJavascript) {
strFileUpload = strFileUpload + "\n\n<SCRIPT LANGUAGE=javascript>\n" +
"<!--\n" +
"//----------------以下函数用于文件上传中各种状态控制\n" +
"function setUpPic(upFileInput,upFileDivName,savePath,fn,iBorder,iBorderColor,strImg,imgMaxWidth){\n" +
" if((fn!=\"\")&&(savePath!=\"\")){\n" +
" if(document.all(upFileInput)!=null) document.all(upFileInput).value=fn;\n" +
" if(document.all(upFileDivName)!=null)\n" +
" document.all(upFileDivName).innerHTML=\"<img name='UpFilePic' id='UpFilePic' tagName='\"+imgMaxWidth+\"' \"+strImg+\" " +
"border='\"+iBorder+\"' src='\"+savePath+fn+\"' style='cursor:hand;border-color=#\"+iBorderColor+\"' " +
"onmousewheel='width+=(window.event.wheelDelta==120)?((width>20)?-20:-0):((width<1600)?+20:+0);return false;' " +
"onload='onloadPic(this);' onclick='window.open(\\\"\"+savePath+fn+\"\\\");' " +
">\";\n" +
" }\n" +
"}\n" +
"function upFileShowPic(savePath,upFileInput,upFileDivName,iBorder,iBorderColor,strImg,imgMaxWidth){\n" +
" var obj=document.all(upFileInput);\n" +
" if(obj!=null) {\n" +
" if(obj.value==\"\"){\n" +
" alert(obj.title+' 为空,不能显示!');\n" +
" return false;\n" +
" }\n" +
" else\n" +
" setUpPic(upFileInput,upFileDivName,savePath,obj.value,iBorder,iBorderColor,strImg,imgMaxWidth);\n" +
" }\n" +
" return true;\n" +
"}\n" +
"function onloadPic(obj){\n" +
" var maxw=0;\n" +
" try{\n" +
" maxw=parseInt(obj.tagName);\n" +
" }catch(e){maxw=0;}\n" +
" if(maxw>0 && obj.width>0){\n" +
" if(obj.width>maxw) obj.width=maxw;" +
" }\n" +
"}\n" +
"function preViewPic(upFileDivName,fn,iBorder,iBorderColor,strImg,imgMaxWidth){\n" +
" if(document.all(upFileDivName)!=null){\n" +
" document.all(upFileDivName).innerHTML=\"<img name='UpFilePic' id='UpFilePic' tagName='\"+imgMaxWidth+\"' alt='预览状态，" +
"请点击上传保存此图片！' \"+strImg+\" border='\"+iBorder+\"' src='\"+fn+\"' style='border-color=#\"+iBorderColor+\"' " +
"onmousewheel='width+=(window.event.wheelDelta==120)?((width>20)?-20:-0):((width<1600)?+20:+0);return false;' " +
"onload='onloadPic(this);' " +
">\";\n" +
" }\n" +
"}\n" +
"//-->\n" +
"</SCRIPT>\n";
}
strFileUpload = strFileUpload + " <table border=\"0\" cellspacing=\"1\" style=\"border-collapse: collapse\" " +
"width=\"" + tableWidth + "\" name=\"tableUpFile\" cellpadding=\"0\">\n";
if(showImgZone) {
strFileUpload = strFileUpload + " <tr>\n";
strFileUpload = strFileUpload + " <td width=\"100%\" nowrap id=\"" + upFileDivName + "\">";
if(!imgFileName.equals("")) {
strFileUpload = strFileUpload + "<img name=\"UpFilePic\" id=\"UpFilePic\" tagName=\"" + imgMaxWidth + "\" " +
strImg + " border=\"" + imgBorder + "\" src=\"" +
websitePath + imgPath + imgFileName + "\" style=\"cursor:hand;border-color=#" + imgBorderColor + "\" " +
"onmousewheel='width+=(window.event.wheelDelta==120)?((width>20)?-20:-0):((width<1600)?+20:+0);return false;' " +
"onload='onloadPic(this);' onclick='window.open(\"" + websitePath + imgPath + imgFileName + "\");' " +
">";
}
strFileUpload = strFileUpload + "</td>\n";
strFileUpload = strFileUpload + " </tr>\n";
}
if(showUpFileInputZone) {
strFileUpload = strFileUpload + " <tr>\n";
strFileUpload = strFileUpload + " <td width=\"100%\" nowrap><input type=\"text\" " +
"name=\"" + upFileInputName + "\" id=\"" + upFileInputName + "\" size=\"30\" value=\"" +
upFileName + "\" style=\"background-color: #E6E6E6;width=" +
upFileInputWidth + "\" readonly title=\"" +
upFileInputTitle + "\">\n";
if(showImgZone) {
strFileUpload = strFileUpload + "<input type=\"button\" value=\"显示\" name=\"btnShow\" " +
"onclick=\"javascript:return upFileShowPic('" +
websitePath + imgPath + "','" +
upFileInputName + "','" + upFileDivName + "','" +
imgBorder + "','" + imgBorderColor + "','" + strImg + "'," + imgMaxWidth + ")\">\n";
}
strFileUpload = strFileUpload + " </td>\n";
strFileUpload = strFileUpload + " </tr>\n";
} else {
strFileUpload = strFileUpload + "<input type=\"hidden\" name=\"" +
upFileInputName + "\" id=\"" + upFileInputName + "\" size=\"30\" value=\"" +
upFileName + "\" style=\"background-color: #E6E6E6;width=" +
upFileInputWidth + "\" title=\"" +
upFileInputTitle + "\">\n";
}
strFileUpload = strFileUpload + " <tr>\n";
strFileUpload = strFileUpload + " <td width=\"100%\" nowrap>\n";
strFileUpload = strFileUpload + " <IFRAME src=\"" +
websitePath + "commonupload.jsp?" +
"websitePath=" + websitePath +
"&savePath=" + savePath +
"&saveFileName=" + saveFileName +
"&fileNameMode=" + fileNameMode +
"&saveTableName=" + saveTableName +
"&saveFieldName=" + saveFieldName +
"&imgPath=" + imgPath +
"&imgBorder=" + imgBorder +
"&imgBorderColor=" + imgBorderColor +
"&strImg=" + strImg +
"&imgMaxWidth=" + imgMaxWidth +
"&upFileInputName=" + upFileInputName +
"&upFileDivName=" + upFileDivName +
"&showImgZone=" + strShowImgZone +
"&showUpFileInputZone=" + strShowUpFileInputZone +
"&fileInputWidth=" + fileInputWidth +
"&allowedFileExt=" + allowedFileExt +
"&deniedFileExt=" + deniedFileExt +
"&maxFileSize=" + maxFileSize +
"\" width=\"" + (fileInputWidth + 80) +
"\" height=\"23\" marginwidth=\"1\" marginheight=\"1\" hspace=\"0\" " +
"frameborder=\"0\" scrolling=\"no\" name=\"frameUpload\" align=\"middle\" " +
"border=\"1\"></IFRAME></td>\n";
strFileUpload = strFileUpload + " </tr>\n";
strFileUpload = strFileUpload + " </table>\n";
return strFileUpload;
}
}
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