上传文件

三、接收文件

request.setCharacterEncoding("UTF-8");
// 文件保存路径
String path = request.getSession ().getServletContext ().getRealPath ("/")
            			+"tmp_jkhd_booking\aa.pdf";
            	//		+request.getParameter("filename");
            
InputStream is = request.getInputStream();
OutputStream os = new FileOutputStream(path);
int bytesRead = 0;
byte[] buffer = new byte[8192];
while ((bytesRead = is.read(buffer, 0, 8192)) != -1) {
    os.write(buffer, 0, bytesRead);
}

四、接收流

strust1

InputStreamReader isr = null;
BufferedReader bf = null;
StringBuffer protocolXML = new StringBuffer("");
try {
　　String s = "";
　　request.setCharacterEncoding("UTF-8");
　　isr = new InputStreamReader(request.getInputStream(), "UTF-8");
　　bf = new BufferedReader(isr);
　　while((s = bf.readLine())!=null){
　　　　protocolXML.append(s);
　　}
　　bf.close();
　　isr.close();
} catch (IOException e) {
　　e.printStackTrace();
} finally {
　　bf.close();
　　isr.close();
}

strust2

　

public String doUploadMapFile (@RequestParam (value = "uploadfile", required = false) MultipartFile uploadfile,   HttpServletRequest request)  {  
  
       Map <String, Object> data = new HashMap <String, Object> ();  
       boolean result = Boolean.TRUE;  
       // 定义容器接收文件名  
       String uploadFileName = null;  
       try  
       {  
  
           InputStreamReader read = new InputStreamReader (uploadfile.getInputStream (), "utf-8");// 考虑到编码格式  
           BufferedReader bufferedReader = new BufferedReader (read);  
           StringBuffer jsonContent = new StringBuffer ();  
  
           String content = "";  
           while ((content = bufferedReader.readLine ()) != null)  
           {  
               jsonContent.append (content);  
           }  
           String brProjectPath = request.getSession ().getServletContext ().getRealPath ("/");  
           uploadFileName = uploadfile.getOriginalFilename ();  
           // 文件保存路径  
           String filePath = brProjectPath + "map\" + uploadFileName;  
           File date = new File (filePath);  
           FileOutputStream fop = null;  
           fop = new FileOutputStream (date);  
  
           byte[] contentInBytes = jsonContent.toString ().getBytes ();  
           fop.write (contentInBytes);  
           fop.flush ();  
           fop.close ();  
           read.close ();  

　　　

一、预览图片（blob）

<div>
    <input class="easyui-filebox" 
 　　　　　　labelPosition="top" 
　　 　　　　data-options="buttonText:'选择文件', accept:'application/pdf',onChange:function(){view_file(this)} " 
　　 　　　　style="90%">
<div>
<div style="margin-top:20px">
　　<a href="#" class="easyui-linkbutton" style="30%" onclick="upload_file()">预约</a>
　　<img id="pdf_view"></img>
</div>

// 上传时，触发的事件
function view_file(_obj) {
　　// 获取当前上传的file的路径
　　var _filepath = $(_obj).filebox("getValue");
　　var _file = document.getElementById('filebox_file_id_1').files[0]; 
　　$('#pdf_view').attr("src", getObjectURL(_file))	
}
// 获取file的本地浏览器对应路径
function getObjectURL(_file) {
　　var url = null;
　　if (window.createObjectURL != undefined) {
　　　　url = window.createObjectURL(_file);
　　} else if (window.URL != undefined) {
　　　　url = window.URL.createObjectURL(_file);
　　} else if (window.webkitURL != undefined) {
　　　　url = window.webkitURL.createObjectURL(_file);
　　}
　　return url;
}          

二、pdf 预览（jquery.metadata.js）

http://jquery.malsup.com/media/

http://jquery.malsup.com/media/misc.html

<script type="text/javascript" src="http://github.com/malsup/media/raw/master/jquery.media.js?v0.92"></script>
<script type="text/javascript" src="jquery.metadata.js"></script>

...

<a class="media" href="guice.pdf">PDF File</a>
<a class="media {type: 'html'}" href="../">HTML File</a>