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📄 uploadpictureservlet.java

📁 一般网页里面实现图片切换的这个电子相册的代码
💻 JAVA
字号:
import java.io.IOException;
import java.io.PrintWriter;
import java.io.*;

import com.jspsmart.upload.*;
import java.util.*;
import java.sql.*;


import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.*;

import userpicture.pictureBean;

public class UploadPictureServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public UploadPictureServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		out
				.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
		out.println("<HTML>");
		out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
		out.println("  <BODY>");
		out.print("    This is ");
		out.print(this.getClass());
		out.println(", using the GET method");
		out.println("  </BODY>");
		out.println("</HTML>");
		out.flush();
		out.close();
	}

	/**
	 * The doPost method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to
	 * post.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		/*out
				.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
		out.println("<HTML>");
		out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
		out.println("  <BODY>");
		out.print("    This is ");
		out.print(this.getClass());
		out.println(", using the POST method");
		out.println("  </BODY>");
		out.println("</HTML>");
		out.flush();
		out.close();*/
		
		//String file=request.getParameter("file");
		HttpSession session = request.getSession(true);
		String myid=(String)(session.getAttribute("id"));
		//System.out.println(myid);
		//System.out.println(file);
		
		String mydir=(String)session.getAttribute("dir");
		String mytype=(String)session.getAttribute("type");
		//String mydir = request.getParameter("dir");
		//String mytype = request.getParameter("type");
		System.out.println("insert into :"+mydir+" "+mytype);
		//System.out.println(mytype);
		
		mydir=myid;
		String path = request.getRealPath("");
		path ="C:\\test\\"+myid;
		java.io.File d = new java.io.File(path);// 建立代表Sub目录的File对象,并得到它的一个引用
		if (d.exists()) {// 检查Sub目录是否存在
			//d.delete();
			out.println("myid目录存在,已删除");
		} else {
			d.mkdir();// 建立myid目录
			out.println("myid目录不存在,已建立");
		} 
		mydir=(String)session.getAttribute("dir");
		path ="C:\\test\\"+myid+"\\"+mydir; // 将要建立的目录路径
		d = new java.io.File(path);// 建立代表Sub目录的File对象,并得到它的一个引用
		if (d.exists()) {// 检查Sub目录是否存在
			//d.delete();
			out.println("myid目录存在,已删除");
		} else {
			d.mkdir();// 建立myid目录
			out.println("myid目录不存在,已建立");
		} 
		
		SmartUpload su = new SmartUpload();
		try {
			
			JspFactory _jspxFactory = null;
			PageContext pageContext = null;
			_jspxFactory = JspFactory.getDefaultFactory();
			pageContext = _jspxFactory.getPageContext(this, request, response,
					"", true, 8192, true);

			su.initialize(pageContext);
			// 设定上传限制
			// 1.限制每个上传文件的最大长度。
			su.setMaxFileSize(400000);
			// 2.限制总上传数据的长度。
			su.setTotalMaxFileSize(1500000);
			// 3.设定允许上传的文件(通过扩展名限制),仅允许doc,txt文件。
			su.setAllowedFilesList("jpg,gif,JPG");
			// 4.设定禁止上传的文件(通过扩展名限制),禁止上传带有exe,bat,jsp,htm,html扩展名的文件和没有扩展名的文件。
			su.setDeniedFilesList("exe,bat,jsp,htm,html,,");

			su.initialize(pageContext);
			su.upload();
	        //su.save("/");
			//		su.save("G:/test/zhong/");
			com.jspsmart.upload.File f = su.getFiles().getFile(0);
			//f.saveAs("/"+f.getFieldName());
			//f.SAVEAS_PHYSICAL();
			f.saveAs("C:\\test\\"+myid+"\\"+mydir+"\\"+f.getFileName());
		//	f.saveAs("c:\\temp\\" + f.getFileName(), 
		//			su.SAVE_PHYSICAL);
			
			out.println("<SCRIPT language=javascript> alert('upload success!');</SCRIPT>");
				
			pageContext.forward("../Upload.jsp");
			
		
			mydir=(String)session.getAttribute("dir");
			pictureBean myp = new pictureBean();
			myp.setId(myid);
			myp.setFilename(f.getFileName());
			myp.setDir(mydir);
			myp.setType(mytype);
			myp.upload();
			//System.out.println(f.getFieldName());
			
			
		} catch (Exception e) {

		}	
		
	}

	/**
	 * The doPut method of the servlet. <br>
	 * 
	 * This method is called when a HTTP put request is received.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doPut(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		// Put your code here
	}

	/**
	 * Initialization of the servlet. <br>
	 * 
	 * @throws ServletException
	 *             if an error occure
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}

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