www.pudn.com > NewsAssurance.rar > UploadAndInsertSecondLevelTitleServlet.java

package com.newsassurace.controller; 
 
import java.io.IOException; 
import java.io.PrintWriter; 
import java.text.SimpleDateFormat; 
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.SmartRequest; 
import com.jspsmart.SmartUpload; 
import com.jspsmart.SmartUploadException; 
import com.newsassurace.biz.NewsBiz; 
import com.newsassurace.entity.SecondLevelTitleBean; 
 
public class UploadAndInsertSecondLevelTitleServlet extends HttpServlet { 
 
	public void doGet(HttpServletRequest request, HttpServletResponse response) 
			throws ServletException, IOException { 
 
		response.setContentType("text/html;charset=gb2312"); 
		request.setCharacterEncoding("gb2312"); 
		PrintWriter out = response.getWriter(); 
 
		String islanded = (String) request.getSession() 
				.getAttribute("islanded"); 
		if (islanded == null) { 
			out.print("
请先登陆！
"); 
		} else if (islanded.equals("false")) { 
			out.print("
请输入正确的用户名与密码登陆！
"); 
		} else { 
			// 使用了一个第三方的组件，存放在web-inf/lib下 
			response.setContentType("text/html;charset=GB2312"); 
			// 由于SmartUpload的初始化方法需要pageContext,所以我们在servlet中得到他 
			// 为了得到pageConext要首先得到JspFactory的实例 
			// 通过JspFactory的实例的getPageContext方法得到pageConext的实例 
			JspFactory jf = null; 
			// 得到JspFactory的实例 
			jf = JspFactory.getDefaultFactory(); 
			// 下面是getPageContext方法参数的说明 
 
			/* 
			 * getPageContext(Servlet servlet, ServletRequest request, 
			 * ServletResponse response, java.lang.String errorPageURL, boolean 
			 * needsSession, int buffer, boolean autoflush) obtains an instance 
			 * of an implementation dependent javax.servlet.jsp.PageContext 
			 * abstract class for the calling Servlet and currently pending 
			 * request and response 
			 */ 
 
			PageContext pageContext = jf.getPageContext(this, request, 
					response, null, true, 8192, true); 
 
			// 实例化SmartUpload 
			SmartUpload mySmartUpload = new SmartUpload(); 
 
			String fileparth = null;// 保存文件在服务器站点上的相对路径 
 
			try { 
				// 初始化SmartUpload的实例，需要PageContext的实例 
				mySmartUpload.initialize(pageContext); 
				// 设定最大上传的字节数，其实可以不进行设定，表示上传的文件没有大小限制 
				mySmartUpload.setTotalMaxFileSize(10000000); 
				mySmartUpload.upload(); 
 
				// 获取客户端文件上传到服务器 
				com.jspsmart.SmartFiles files = mySmartUpload.getFiles(); 
				com.jspsmart.SmartFile file = files.getFile(0); 
				String upLoadFileName = file.getFileName(); 
				// 如果有文件上传就保存 
				if (!upLoadFileName.equals("") && upLoadFileName != null) { 
					file.saveAs("/upload/" + file.getFileName()); 
				} 
 
				fileparth = "upload/" + file.getFileName();// 保存文件在服务器站点上的相对路径,不可以写"/upload/" 
 
				out.print("
文件上传成功！
"); 
			} catch (Exception e) { 
				System.out.println(e.getMessage()); 
				out.print("
文件上传失败！
返回"); 
				return; 
			} 
			 
			// 将二级标题存到数据库中 
			SmartRequest req = mySmartUpload.getRequest(); 
 
			Date nowtime = new Date(); 
			SimpleDateFormat formate = new SimpleDateFormat( 
					"yyyy-MM-dd HH:mm:ss"); 
			String time = formate.format(nowtime);// 获得当前时间 
			String createrid = (String) request.getSession().getAttribute( 
					"createrId");// 获得发布者id 
 
			String parentname = req.getParameter("menu1"); 
			String secondtitlename = req.getParameter("title"); 
 
			NewsBiz nb = new NewsBiz(); 
			String parentid = null; 
			parentid = nb.queryParentId(parentname); 
 
			SecondLevelTitleBean bean = new SecondLevelTitleBean(); 
			bean.setTitleName(secondtitlename); 
			bean.setFilePath(fileparth); 
			bean.setCreaterId(createrid); 
			bean.setCreateTime(time); 
			bean.setParentId(parentid); 
 
			NewsBiz biz = new NewsBiz(); 
			boolean isinserted = false; 
			isinserted = biz.saveSecondTitle(bean); 
 
			if (isinserted) { 
				out.print("
二级标题发布成功！
返回"); 
				 
			} else { 
				out.print("
二级标题发布失败！
返回"); 
			} 
		} 
 
	} 
 
	public void doPost(HttpServletRequest request, HttpServletResponse response) 
			throws ServletException, IOException { 
		doGet(request, response); 
 
	} 
 
}