使用smartUpload进行文件的上传(两种情况:1.在另一个jsp页面取值上传,2.在servlet中取值上传)

1. sad导入smartupload的jar包
2. 提交到jsp页面上传
   1. 创建表单元素

      1. 
         
         	文件名:
                                      
         	文件1:
                                       
          	                          
          		                      
          		                      
         	                                         
                                                                                

          

   2. 提交到upload.jsp页面

      1. <%@page import="com.jspsmart.upload.*"%>          
         <%@page import="com.jspsmart.upload.SmartUpload"%>
         
         
         //获取SmartUpload对象  注意是import="com.jspsmart.upload.SmartUpload"
         SmartUpload smartUpload=new SmartUpload();                                                   
         //初始化页面的上下文对象                                                                                
         smartUpload.initialize(pageContext);                                                         
         //设置允许上传的文件格式                                                                                
         smartUpload.setAllowedFilesList("jpg,png,gif");                                              
         //设置不允许上传的文件格式                                                                               
         smartUpload.setDeniedFilesList("docx");                                                      
         //设置单个上传文件的最大大小（20M,默认为2M）                                                                   
         smartUpload.setMaxFileSize(1024*1024*20);                                                    
         //设置总共文件允许的大小                                                                                
         smartUpload.setTotalMaxFileSize(1024*1024*1024*2);                                           
         try{                                                                                         
         	smartUpload.upload();//上传                                                                
         }catch(Exception e){                                                                         
         	e.printStackTrace();                                                                     
         }                                                                                            
         Files files=smartUpload.getFiles();//获取所有的file文件                                             
         for(int i=0;i标签的表单元素name属性的名称                          
         	String fileName=file.getFileName();//文件本身的名称                                             
         	file.saveAs("img/"+fileName,smartUpload.SAVE_AUTO);//保存在tomcat服务器WebRoot下的img文件夹         
         	file.saveAs("d://"+fileName,smartUpload.SAVE_AUTO);//保存到电脑本地d盘下                          
         }         
                                                                                                                                        

          

3. 提交到Servlet中上传
   1.  创建表单

      1. 
         
         	文件名:
                                      
         	文件1:
                                       
          	                          
          		                      
          		                      
         	                                         
                      

          

   2. 提交到SmartUploadServlet.java
      1.  

         import javax.servlet.ServletException;        
         import javax.servlet.http.HttpServlet;        
         import javax.servlet.http.HttpServletRequest; 
         import javax.servlet.http.HttpServletResponse;
         import javax.servlet.jsp.JspFactory;          
         import javax.servlet.jsp.PageContext;         
         
         import com.jspsmart.upload.File;       
         import com.jspsmart.upload.Files;      
         import com.jspsmart.upload.SmartUpload;
         
         response.setContentType("text/html;charset=utf-8");                                            
         response.setCharacterEncoding("utf-8");                                                        
         request.setCharacterEncoding("utf-8");                                                         
         PrintWriter out = response.getWriter();                                                        
         //获取smartupload对象                                                                              
         SmartUpload smartUpload=new SmartUpload();                                                     
         //pageContext是jsp内置对象,需要处理一下                                                                   
         //方法一:                                                                                         
         JspFactory _jspxFactory = JspFactory.getDefaultFactory();                                      
         PageContext pageContext = _jspxFactory.getPageContext(this,request,response,"",true,8192,true);
         smartUpload.initialize(pageContext);//初始化                                                      
                                                                                                        
         //方法二:                                                                                         
         smartUpload.initialize(this, request, response);//初始化                                          
         try {                                                                                          
         	smartUpload.upload();//上传                                                                  
         } catch (Exception e) {                                                                        
         	e.printStackTrace();                                                                       
         }                                                                                              
         Files files = smartUpload.getFiles();//获取所有的file集                                              
         for (int i = 0; i < files.getCount(); i++) {                                                   
         	File file = files.getFile(i);//获取第i个file(单个)                                               
         	String fileName = file.getFileName();//获取的是文件的名称(带后缀名)                                     
         	String fieldName = file.getFieldName();//获取的是input控件的name="名称"                             
         	file.saveAs("img/"+fileName,smartUpload.SAVE_AUTO);//保存到服务器WebRoot下的img文件夹                 
         	file.saveAs("d:/"+fileName,smartUpload.SAVE_AUTO);//保存到本地磁盘d盘                              
         }