servletupload.java

一个完整的代码管理系统的源代码

/*
 * Copyright (c) 2007-2010 Tanming1003 Inc.
 * All rights reserved.
 * 
 * tanming1003<[e-mail]>
 * 
 * 
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions 
 * are met:
 * 
 * Redistributions of source code must retain the above copyright 
 * notice, this list of conditions and the following disclaimer. 
 * Redistributions in binary form must reproduce the above copyright 
 * notice, this list of conditions and the following disclaimer in the 
 * documentation and/or other materials provided with the distribution. 
 * Neither the name of tanming1003 nor the names of its contributors 
 * may be used to endorse or promote products derived from this 
 * software without specific prior written permission. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
 * REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 */
package hunnu.edu.cn.product.common.upload;

import java.util.Hashtable;
import java.util.List;

import hunnu.edu.cn.product.log.LogFactory;
import hunnu.edu.cn.product.log.LogLog;

import javax.servlet.ServletRequest;
/**
 * @author [e-mail]
 * @date Oct 14, 2008
 * @time 9:06:39 PM
 * @project_name Product
 * @package_name hunnu.edu.cn.product.upload
 * @file_name    Context.java
 * @version      1.0
 */
public class ServletUpload implements Upload
{
    private ServletRequest request;
    private LogLog log=LogFactory.newInstance().getLog(this.getClass());
    private List<FileItem> fileItems;
    private Hashtable<String,Object> fields;
    
    public ServletUpload(ServletRequest request)
    {
    	this.request=request;
    }
    
    public ServletUpload()
    {
    	super();
    }
    
    public void setRequest(ServletRequest request)
    {
    	this.request=request;
    }
    
    
    
    public void doUpload()
    {
    	if(this.request==null)
			try
			{
				throw new Exception("request对象无效.......");
			}
			catch (Exception e)
			{
				e.printStackTrace();
			}
    	Context context=new ServletUploadContext();
    	context.setServletRequest(this.request);
    	RequestHandler handler=new MutiPartHandler(context);
    	handler.parseRequest();
    	FileUploadFactory ufactory=FileUploadFactory.newInstance();
    	FileUpload upload=ufactory.newFileUpload();
    	upload.setFileItems(handler.getFileItems());
    	this.fileItems=handler.getFileItems();
    	this.fields=handler.getFields();
    	if(upload.getFileItems()!=null)
    	{
    		log.info("开始上传文件.........");
    		boolean isSuccessfull=upload.upload(upload.getFileItems());
    		if(isSuccessfull)
    		     log.info("文件上传成功........");
    		else
    			log.info("文件上传失败.........");
    		return;
    	}
    }
    
    public void doUpload(ServletRequest request)
    {
    	setRequest(request);
    	doUpload();
    }

	public List<FileItem> getFileItems() {
		if(this.fileItems!=null)
			return fileItems;
		return null;
	}

	public Hashtable<String, Object> getFields() 
	{
		if(this.fields!=null)
		   return this.fields;
		return null;
	}
}