?? linkaction.java
字號:
package com.wy.webtier;
import javax.servlet.http.*;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import com.wy.domain.LinkForm;
import com.wy.dao.LinkDao;
import java.util.*;
import java.io.UnsupportedEncodingException;
//網站連接的Action
public class LinkAction
extends Action {
private LinkDao dao = null;
private int action;
public ActionForward execute(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) throws
UnsupportedEncodingException {
this.action = Integer.parseInt(request.getParameter("action"));
dao = new LinkDao();
switch (action) {
case 0: {
return linkSelect(mapping, form, request, response); //對連接網站地址信息的全部查詢
}
case 2: {
return linkInsert(mapping, form, request, response); //添加網站信息
}
case 4: {
return linkDelete(mapping, form, request, response); //刪除網站信息
}
}
// LinkForm linkForm = (LinkForm) form;
throw new java.lang.UnsupportedOperationException(
"Method $execute() not yet implemented.");
}
//刪除網站信息
public ActionForward linkDelete(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) {
dao.deleteLink(Integer.valueOf(request.getParameter("id")));
return linkSelect(mapping, form, request, response);
}
//添加網站信息
public ActionForward linkInsert(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) {
LinkForm linkForm = (LinkForm) form;
dao.insertLink(linkForm);
return linkSelect(mapping, form, request, response);
}
//對連接網站地址信息的全部查詢
public ActionForward linkSelect(ActionMapping mapping, ActionForm form,
HttpServletRequest request,
HttpServletResponse response) {
List list = dao.selectLink();
int pageNumber = list.size(); //計算出有多少條記錄
int maxPage = pageNumber; //計算有多少頁數
String number = request.getParameter("i");
if (maxPage % 7 == 0) {
maxPage = maxPage / 7;
}
else {
maxPage = maxPage / 7 + 1;
}
if (number == null) {
number = "0";
}
request.setAttribute("number", String.valueOf(number));
request.setAttribute("maxPage", String.valueOf(maxPage));
request.setAttribute("pageNumber", String.valueOf(pageNumber));
request.setAttribute("list", list);
return mapping.findForward("linkSelect");
}
}
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