Jsp上传组件Smartupload介绍

  

   

    

     

    
    

     

      <form action="UploadServlet" enctype="multipart/form-data" method="post">
     
    
   

    

     

    
    

     

          		书籍名称：<input type="text"name="name"><br>
     
    
   

    

     

    
    

     

          		图片名称：上传文件：<input type="file" name="img"><br/>
     
    
   

    

     

    
    

     
    		<input type="submit"value="提交">
     
    
   

    

     

    
    

     
    		</form>
     
    
  
 

  

   

    

     

    
    

     

      package web;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      import java.io.IOException;
     
    
   

    

     

    
    

     

      import java.util.Date;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      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.Request;
     
    
   

    

     

    
    

     

      import com.jspsmart.upload.SmartUpload;
     
    
   

    

     

    
    

     

      import com.jspsmart.upload.SmartUploadException;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      public class UploadServlet extends HttpServlet {
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
	private static final long serialVersionUID = 1L;
     
    
   

    

     

    
    

     
	@Override
     
    
   

    

     

    
    

     
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
     
    
   

    

     

    
    

     
			throws ServletException, IOException {
     
    
   

    

     

    
    

     

      		resp.setContentType("text/html");
     
    
   

    

     

    
    

     
		//实例化SmartUpload上传组件
     
    
   

    

     

    
    

     
		SmartUpload smart = new SmartUpload();
     
    
   

    

     

    
    

     
		//PageContext pageContext=JspFactory.getDefaultFactory().getPageContext(this, req, resp, null, true, 8192, true);
     
    
   

    

     

    
    

     
		//初始化上传操作
     
    
   

    

     

    
    

     

      		smart.initialize(this.getServletConfig(),req,resp);
     
    
   

    

     

    
    

     

      		smart.setMaxFileSize(1024*1024*10);
     
    
   

    

     

    
    

     

      		smart.setAllowedFilesList("jpg,jpeg,bmp");
     
    
   

    

     

    
    

     
		//设置字符集
     
    
   

    

     

    
    

     

      		smart.setCharset("gbk");
     
    
   

    

     

    
    

     
		//准备上传
     
    
   

    

     

    
    

     
		try {
     
    
   

    

     

    
    

     

      			smart.setDeniedFilesList("exe,jsp,bat,html,,");
     
    
   

    

     

    
    

     

      			smart.upload();
     
    
   

    

     

    
    

     

      			Long time=new Date().getTime();
     
    
   

    

     

    
    

     

      			String ext=smart.getFiles().getFile(0).getFileExt();//获取文件后缀 
     
    
   

    

     

    
    

     

      			String filename=time+"."+ext;
     
    
   

    

     

    
    

     
			//smart.getFiles().getFile(0).saveAs( "/img/ "+filename);//保存在容器目录下
     
    
   

    

     

    
    

     

      			String pa=this.getServletContext().getRealPath("/")+"img"+java.io.File.separator+filename;
     
    
   

    

     

    
    

     

      			System.out.println(pa);
     
    
   

    

     

    
    

     
			
     
    
   

    

     

    
    

     

      			smart.getFiles().getFile(0).saveAs(pa);
     
    
   

    

     

    
    

     
			// smart.save("img");
     
    
   

    

     

    
    

     
			Request smartReq  =smart.getRequest();
     
    
   

    

     

    
    

     

      			String name=smartReq.getParameter("name");
     
    
   

    

     

    
    

     

      			resp.getWriter().println(name);
     
    
   

    

     

    
    

     

      		} catch (Exception e) {
     
    
   

    

     

    
    

     

      			e.printStackTrace();
     
    
   

    

     

    
    

     

      		}
     
    
   

    

     

    
    

     
		//将上传的文件保存到项目根路径下的uploadfile目录中
     
    
   

    

     

    
    

     

      	}
     
    
   

    

     

    
    

     
	@Override
     
    
   

    

     

    
    

     
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
     
    
   

    

     

    
    

     
			throws ServletException, IOException {
     
    
   

    

     

    
    

     
		this.doPost(req, resp);
     
    
   

    

     

    
    

     

      	}
     
    
   

    

     

    
    

     

      }
     
    
  
 

<Context path="/web" docBase="D:\updemo\WebRoot"/>

在tomcat的host目录下设置，Context子标签，让上传的时候，同步上传到项目目录下！！！

文章来源: aaaedu.blog.csdn.net，作者：tea_year，版权归原作者所有，如需转载，请联系作者。

原文链接：aaaedu.blog.csdn.net/article/details/53396683