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LinkAction.java
资源名称：LibraryManage.rar　[点击查看]
上传用户：toby828
上传日期：2015-06-26
资源大小：8558k
文件大小：5k
源码类别：

Jsp/Servlet

开发平台：

Java

LinkAction.java：源码内容
  1. package com.webtier;
  3. import javax.servlet.http.*;
  4. import com.domain.LinkForm;
  5. import org.apache.struts.action.*;
  6. import com.dao.LinkDao;
  7. import java.util.*;
  8. import com.tool.Chinese;
  9. import javax.servlet.ServletConfig;
  10. import javax.servlet.ServletException;
  11. import com.jspsmart.upload.SmartUpload;
  12. import java.io.UnsupportedEncodingException;
  13. import java.io.*;
  15. //网站连接的Action
  16. public class LinkAction
  17.     extends Action {
  18.   private LinkDao dao = null;
  19.   private int action;
  22.   public ActionForward execute(ActionMapping mapping,
  23.                                ActionForm form,
  24.                                HttpServletRequest request,
  25.                                HttpServletResponse response) throws
  26.       UnsupportedEncodingException {
  27.     request.setCharacterEncoding("gb2312");
  28.     this.action = Integer.parseInt(request.getParameter("action"));
  29.     dao = new LinkDao();
  30.     switch (action) {
  31.       case 0: {
  32.         return linkSelect(mapping, form, request, response); //对连接网站地址信息的全部查询
  33.       }
  34.       case 1: {
  35.         return linkForward(mapping, form, request, response); //通过方法转向添加信息的网页
  36.       }
  37.       case 2: {
  38.         return linkInsertForwardOne(mapping, form, request, response); //查询数据库中是否有这个网站信息
  39.       }
  40.       case 3: {
  41.        return linkInsert(mapping, form, request, response); //添加网站信息
  42.      }
  43.      case 4: {
  44.            return linkDelete(mapping, form, request, response); //删除网站信息
  45.      }
  46.     }
  47.     //  LinkForm linkForm = (LinkForm) form;
  48.     throw new java.lang.UnsupportedOperationException(
  49.         "Method $execute() not yet implemented.");
  50.   }
  52.   //删除网站信息
  53.   public ActionForward linkDelete(ActionMapping mapping,
  54.                                             ActionForm form,
  55.                                             HttpServletRequest request,
  56.                                             HttpServletResponse response) {
  57.    String path=request.getParameter("path");
  60.   dao.deleteLink(Integer.valueOf(request.getParameter("id")));
  61.     request.setAttribute("success","删除连接网站信息成功");
  62.     return mapping.findForward("linkOperation");
  63. }
  65.     //添加网站信息
  66.     public ActionForward linkInsert(ActionMapping mapping,
  67.                                               ActionForm form,
  68.                                               HttpServletRequest request,
  69.                                               HttpServletResponse response) {
  70.       LinkForm linkForm = (LinkForm) form;
  71.       linkForm.setLinkAddress(Chinese.chinese(request.getParameter("address")));
  72.       linkForm.setLinkName(Chinese.chinese(request.getParameter("name")));
  73.       linkForm.setLinkPicture(Chinese.chinese(request.getParameter("path")));
  74.       dao.insertLink(linkForm);
  75.       request.setAttribute("success","添加连接网站信息成功");
  76.       return mapping.findForward("linkOperation");
  77.   }
  79. //查询数据库中是否有这个网站信息
  80.   public ActionForward linkInsertForwardOne(ActionMapping mapping,
  81.                                             ActionForm form,
  82.                                             HttpServletRequest request,
  83.                                             HttpServletResponse response) {
  84.     String name = Chinese.chinese(request.getParameter("name"));
  85.     String address = Chinese.chinese(request.getParameter("address"));
  86.     LinkForm linkName = dao.selectOneName(name);
  87.     LinkForm linkAddress = dao.selectOneAddress(address);
  88.     if (linkName!=null) {
  89.       request.setAttribute("result", "此网站的名称已经存在");
  90.     }
  91.     else if (linkAddress != null) {
  92.        request.setAttribute("result","此网站的地址已经存在");
  93.     }
  94.     else {}
  95.     return mapping.findForward("linkInsertForwardOne");
  96.   }
  98.   //对连接网站地址信息的全部查询
  99.   public ActionForward linkSelect(ActionMapping mapping, ActionForm form,
  100.                                   HttpServletRequest request,
  101.                                   HttpServletResponse response) {
  102.     List list = dao.selectLink();
  103.     int pageNumber = list.size(); //计算出有多少条记录
  104.     int maxPage = pageNumber; //计算有多少页数
  105.     String number = request.getParameter("i");
  106.     if (maxPage % 7 == 0) {
  107.       maxPage = maxPage / 7;
  108.     }
  109.     else {
  110.       maxPage = maxPage / 7 + 1;
  111.     }
  112.     if (number == null) {
  113.       number = "0";
  114.     }
  115.     request.setAttribute("number", String.valueOf(number));
  116.     request.setAttribute("maxPage", String.valueOf(maxPage));
  117.     request.setAttribute("pageNumber", String.valueOf(pageNumber));
  118.     request.setAttribute("list", list);
  119.     return mapping.findForward("linkSelect");
  120.   }
  122. //通过方法转向添加信息的网页
  123.   public ActionForward linkForward(ActionMapping mapping, ActionForm form,
  124.                                    HttpServletRequest request,
  125.                                    HttpServletResponse response) {
  126.     return mapping.findForward("linkForward");
  127.   }
  129. }