researcheraction.java

这个是j2eejava web 编程精要十五讲的全部源码。对学习java web编程的人来说是很能得的资料

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package actions;

import java.io.PrintWriter;
import java.util.ArrayList;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

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 util.PageBean;
import dao.*;
import service.*;
import beans.*;
import util.*;


/** 
 * MyEclipse Struts
 * Creation date: 10-08-2007
 * 
 * XDoclet definition:
 * @struts.action path="/researcher" name="researcherForm" input="/researcher_insert.jsp" scope="request"
 */
public class ResearcherAction extends BaseAction {
	
	 private static final String CONTENT_TYPE = "text/html; charset=GB2312";
	
	
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) throws Exception {
		
		
		ResearcherForm researcherForm = (ResearcherForm) form;
		
         request.setCharacterEncoding("gb2312");
		
		HttpSession session = request.getSession();
		
		String mark = new String();
		
        String name = researcherForm.getName();
        if(name!=null ) name = new String(name.getBytes("iso8859_1"), "gb2312");
        if (name == null) {
            name = "";
        }
        String sex = researcherForm.getSex();
        if(sex!=null ) sex = new String(sex.getBytes("iso8859_1"), "gb2312");
        if (sex == null) {
            sex = "";
        }
        String title = researcherForm.getTitle();
        if(title!=null ) title = new String(title.getBytes("iso8859_1"), "gb2312");
        if (title == null) {
            title = "";
        }
        
        
        String career = researcherForm.getCareer();
        if(career!=null ) career = new String(career.getBytes("iso8859_1"), "gb2312");
        if (career == null) {
            career = "";
        }
        
       
        int rid = Integer.parseInt(researcherForm.getRid());
     
        
       String[] check = researcherForm.getCheck();

        response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();

        String command = researcherForm.getCommand();
   if(command!=null) {
	   command = command.trim();
       command = new String(command.getBytes("iso8859_1"), "gb2312");
   }
   
   System.out.println("要执行的操作是：" + command);

    boolean bool = false;

     
      Researcher researcher = new Researcher();
    
          researcher.setRid(rid);
          researcher.setName(name);
          researcher.setSex(sex);
          researcher.setTitle(title);
          researcher.setCareer(career);
       
       
       IResearcherDAO researcherDAO = getResearcherService().getResearcherDAO();
       
       String condition = new String();
       PageBean pageBean = new PageBean();

       //添加信息

  if (command.equals("insert")) {

      bool = researcherDAO.saveResearcher(researcher);

      if (bool) {
          out.println("<script language=javascript>alert('添加成功！')");
          out.println("location.href='researcher/query.jsp'</script>");
          out.close();

      } else {
          out.println("<script language=javascript>alert('错误！添加未成功！')");
          out.println("location.href='researcher/query.jsp'</script>");
          out.close();

      }
  }

   //查询
  if (command.equals("query")) {
	  
	  System.out.println("Here is ResearcherAction");

	  condition = researcherForm.getCondition();
	  //if(condition!=null) condition = new String(condition.getBytes("iso8859_1"),"gb2312");
	  System.out.println("The query condition is: "+condition);
	  if(condition==null) condition="";
	  
	  session.setAttribute("condition", condition);
	 
	  
	  int pageNum = 5;
	    int currPage=0;
	   
	      pageBean.setPageNum(pageNum);
	      pageBean.setCurrPage(currPage);
	      pageBean.setCondition(condition);

	       ArrayList ls = (ArrayList)researcherDAO.getResearcher(pageBean);

        session.setAttribute("queryResult", ls);
        
        mark = "queryPage";

      }
  
  
  

   //更新信息

  if (command.equals("update")) {

       bool = researcherDAO.updateResearcher(researcher);

      if (bool) {
              out.println("<script language=javascript>alert('修改成功！')");
                 //out.println("window.close()</script>");
                out.println("location.href='researcher/query.jsp'</script>");
                  out.close();

              } else {
                      out.println("<script language=javascript>alert('错误！修改未成功！')");
                          //out.println("window.close()</script>");
                          out.println("location.href='researcher/query.jsp'</script>");
                          out.close();

              }
  }


  

  
//删除信息

  if (command.equals("删除")) {
      if (check != null) {
          int num = check.length;
          for (int i = 0; i <= num - 1; i++) {
              System.out.println("check[i]=" + check[i]);
             bool = researcherDAO.delResearcher(check[i]);
              if (bool) {
                  out.println("<script language=javascript>alert('删除成功！')");
                  out.println("location.href='researcher/query.jsp'</script>");
                  out.close();
              }
              else {
                  out.println("<script language=javascript>alert('删除未成功！')");
                  out.println("location.href='researcher/query.jsp'</script>");
                  out.close();
              }

          }
      }
  }



		
		
		return mapping.findForward(mark);
	}
		
	
}