querydeleteclassservlet.java

固定资产管理系统包括一个基本的部分

package com.shenlong.assetmanage.control;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.List;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.shenlong.assetmanage.service.AssetClassService;
import com.shenlong.assetmanage.service.EmployeeService;

public class QueryDeleteClassServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public QueryDeleteClassServlet() {
		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 {

		doPost(request,response);
	}

	/**
	 * 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 {

		String name=(String)request.getParameter("class_name");
		String StrPage=(String)request.getParameter("Page");
		name=new String(name.getBytes("ISO-8859-1"),"gb2312");
		AssetClassService class1=new AssetClassService();
		int count=0;
		int  currPage=1;
		int pageSize=5;
		List list=null;
		
		try {
			 count=class1.getClassCountByName(name);
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		if(count==0){
			request.setAttribute("sure","error");
			
			RequestDispatcher pa=this.getServletContext().getRequestDispatcher("/queryDeleteClass.jsp");
			pa.forward(request, response);
		}else{
			if (StrPage == null || StrPage=="")
	    	{
	    		currPage = 1;
	    	}
	    	else
	    	{
	    		currPage = Integer.parseInt(StrPage);
	    	}
			int countPage = (count/pageSize);
			if (count%pageSize>0)
				countPage++;
			try {
			 list=(List)class1.queryClassByName(name, currPage, count);
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			request.setAttribute("count",new Integer(count));
			request.setAttribute("countPage",new Integer(countPage));
			request.setAttribute("currPage",new Integer(currPage));
			request.setAttribute("list",list);
			request.setAttribute("name",name);
			RequestDispatcher pa=this.getServletContext().getRequestDispatcher("/queryDeleteClass.jsp");
			pa.forward(request, response);
	}
	}

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

}