searchaction.java

图片管理功能：图片的上载及下载

package action;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForm;
import org.apache.struts.upload.FormFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.servlet.ServletException;
import javax.imageio.ImageIO;
import java.io.*;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.sql.ResultSet;

import com.sun.image.codec.jpeg.JPEGImageEncoder;
import com.sun.image.codec.jpeg.JPEGCodec;
import formbean.SearchForm;
import beans.DataBean;
import beans.PageBean;

/**
 * Created by IntelliJ IDEA.
 * User: Administrator
 * Date: 2006-6-22
 * Time: 15:51:56
 * To change this template use File | Settings | File Templates.
 */
public class SearchAction extends Action {
     public ActionForward perform(ActionMapping mapping,
                                  ActionForm form,
                                  HttpServletRequest request,
                                  HttpServletResponse response)
                 throws IOException, ServletException {

       request.setCharacterEncoding("GBK");

      response.setContentType("text/html;charset=gbk");

       SearchForm searchForm = (SearchForm)form;

       String searchtext =  new String(searchForm.getSearchtext().getBytes("ISO-8859-1") );

       String pictype =  new String(searchForm.getPictype().getBytes("ISO-8859-1") );

       PageBean pb = new PageBean();

       if(!searchForm.getSearchtext().equals("")  && !pictype.equals("all")){
            String sql = "select id,name,type,pos,detail from pictures where detail like '%"+searchtext+"%' and typecon like '"+pictype+"'" ;
            pb.getResult(sql);
       }
       if(searchForm.getSearchtext().equals("") && !pictype.equals("all")){
            String sql = "select id,name,type,pos,detail from pictures where typecon like '"+pictype+"'" ;
            pb.getResult(sql);
       }
       if(!searchForm.getSearchtext().equals("") && pictype.equals("all")){
            String sql = "select id,name,type,pos,detail from pictures where detail like '%"+searchtext+"%'" ;
            pb.getResult(sql);
       }
       if(searchForm.getSearchtext().equals("") && pictype.equals("all")){
            String sql = "select id,name,type,pos,detail from pictures" ;
            pb.getResult(sql);
       }
       HttpSession session =request.getSession();
       session.setAttribute("pagebean",pb);

       return mapping.findForward("success");

     }
}