src/com/wy/webtier/LinkAction.java

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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;


//网站连接的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); //对连接网站地址信息的全部查询
      }   
      case 2: {
       return linkInsert(mapping, form, request, response); //添加网站信息
     }
       case 4: {
           return linkDelete(mapping, form, request, response); //删除网站信息
     }
    }
    //  LinkForm linkForm = (LinkForm) form;
    throw new java.lang.UnsupportedOperationException(
        "Method $execute() not yet implemented.");
  }

  //删除网站信息
  public ActionForward linkDelete(ActionMapping mapping,
                                            ActionForm form,
                                            HttpServletRequest request,
                                            HttpServletResponse response) {
    dao.deleteLink(Integer.valueOf(request.getParameter("id")));
    return linkSelect(mapping, form, request, response);
}

    //添加网站信息
    public ActionForward linkInsert(ActionMapping mapping,
                                              ActionForm form,
                                              HttpServletRequest request,
                                              HttpServletResponse response) {