用于解决在一个页面上传多个文件的问题．
<script type="text/javascript">
function showDialog(url){
//弹出一个showModalDialog,并以returnValue来获取返回值
var returnValue = window.showModalDialog(url);
//alert(returnValue);
if(returnValue!=null){
//for(var i=0;i<returnValue.length;i++){
//document.all.info.innerHTML = returnValue[i]+"<br>";
//}
//输出返回值
document.getElementById("IMAGENAME").value = document.getElementById("IMAGENAME").value + returnValue + "|";
//document.all.imgname.innerHTML=returnValue;
}
}
</script>
在示例图中的＂上传图片＂是一个button按钮,给它一个onclick事件，当点击时触发：
<td height="25">
<input name="IMAGENAME" type="text" id="IMAGENAME" />
<input type="button" name="Submit3" value="上传图片" onclick="showDialog('automobile/up.jsp')" />
</td>
弹出图片上传页：
图片上传页：
<base target="_self"/>
<body>
<form action="/qcbst/v_uploadautomobileimage" name="myform" method="post" enctype="multipart/form-data" >
<table width="100%" border="0" align="center">
<tr>
<td colspan="2">图片上传</td>
</tr>
<tr>
<td width="30%"><div align="right">汽车图片：</div></td>
<td width="70%"><input type="file" name="imgname" size="20"><input type="submit" value="上传"></td>
</tr>
<tr>
<td><div align="right">上传信息：</div></td>
<td> </td>
</tr>
</table>
</form>
</body>
当点击上传后．图片上传到服务器，然后，关闭当前页，返回图片的名称给调用页：
上传servlet:
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setCharacterEncoding("GBK");
response.setContentType("text/html");
UploadBean up = new UploadBean();//--------文件上传类
String path = request.getRealPath(request.getContextPath()).substring(0,request.getRealPath(request.getContextPath()).lastIndexOf("\\"));
try{
File file = new File(path+"/img/automobile");//
if(!file.exists()){
file.mkdir();
}
}catch(Exception e){
}
up.setObjectPath(path+"/img/automobile/");//
//设置上传文件大小
up.setSize(10000*1024);
//可上传文件后缀名
up.setSuffix(".JPG.JPGE.jpg.jpge.gif.GIF");
try{
up.setSourceFile(request);
}catch(Exception e){
response.getWriter().write("图片上传失败！！！");
}
String [] saSourceFile = up.getSourceFile();
String [] saObjectFile = up.getObjectFileName();
String [] saDescription = up.getDescription();
int iCount = up.getCount();
String sObjectPath = up.getObjectPath();
if(saDescription != null && saDescription[0].indexOf("ERR") == -1){
response.getWriter().write("<script language='javascript'>window.returnValue = '");
response.getWriter().write(saObjectFile[0]);
response.getWriter().write("';window.close();</script>");
}else{
response.getWriter().write("图片上传失败！！！");
}
}
上传完成后：
OK,完成了!!!