sam0010handler.java

哈工大CERP系统Java源码及开发说明.rar 内容十分详尽

package seed;

/**
 * Title:        数据库类型查询
 * Description:  数据库类型查询
 * Copyright:    Copyright  Reserved By BRITC
 * Company:      BRITC
 * @author 张爱军
 * @version 1.0
 */

import com.huiton.cerp.pub.util.*;
import com.huiton.cerp.pub.util.functions.*;
import com.huiton.mainframe.control.event.CERPEvent;
import com.huiton.mainframe.control.exceptions.DuplicateRecordException;
import com.huiton.mainframe.control.web.CustomerWebImpl;
import com.huiton.mainframe.control.web.ModelManager;
import com.huiton.mainframe.control.web.handlers.RequestHandlerSupport;
import com.huiton.mainframe.util.tracer.Debug;
import com.huiton.pub.dbx.*;
import java.sql.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class SAM0010Handler extends RequestHandlerSupport
{

    public SAM0010Handler()
    {
    }

    public CERPEvent processRequest(HttpServletRequest request)
        throws Exception, DuplicateRecordException, SQLException
    {
        Debug.println("----SAM0010Handler: processRequest()");
        HttpSession session = request.getSession();
        ModelManager mm = (ModelManager)session.getAttribute("mm");
        CustomerWebImpl customer = mm.getCustomerWebImpl();

        String companyCode = customer.getCompanyCode();
        String sessionCode = customer.getSessionCode();
        String userUniqueNo = customer.getUserUniqueNo();

        String opFlag = null; //operation flag
        String outFlag = "1"; // outcome flag, 1 means succeeds
        Vector vct = null; //保存记录
        String sql = null;
        int currentPage = 1; //当前页
        int pageCount = 1; //总页数
        int pageSize = 16;

        ResultSet rs = null;
        String strFields = null;
        String strTables = null;
        String strConditions = null;

        opFlag = request.getParameter("opFlag");
        opFlag = (opFlag==null ? "" : opFlag.trim());
        opFlag = (opFlag.length()<1 ? "query" : opFlag);

        // get currentPage and pageCount
        String m_currentPage = request.getParameter("currentPage");
        m_currentPage = (m_currentPage==null ? "1" : m_currentPage.trim());
        currentPage = Integer.parseInt(m_currentPage);
        currentPage = (currentPage < 1 ? 1 : currentPage);
        m_currentPage = request.getParameter("pageCount");
        m_currentPage = (m_currentPage==null ? "1" : m_currentPage.trim());
        pageCount = Integer.parseInt(m_currentPage);
        pageCount = (pageCount < 1 ? 1 : pageCount);

        //查询条件
        String condition = "";  // set query Condition to nothing
        strConditions = " 1=1 order by db_type_code ";

        strFields = "db_type_code,db_type_name" ;
        strTables = "scg_db_type";

        Debug.println("----opFlag=" + opFlag);

        try
        {
            PageQuery pageQuery = DBOperators.getPageQuery(request,
                sessionCode,SubsystemKeys.SAM, "SAM0010Handler");

            //query
            {
                //查询
                pageQuery.getData(strFields,strTables,strConditions,pageSize);
                pageCount = pageQuery.pageCount ;
                currentPage = (currentPage>pageCount ? pageCount : currentPage);
                vct = pageQuery.dividePage(currentPage,pageSize);
            }

        }
        catch (Exception e)
        {
          e.printStackTrace();
          outFlag = "0" ;
        }

        vct = (vct==null ? new Vector() : vct);
        request.setAttribute("vct",vct);
        request.setAttribute("outFlag",outFlag);
        request.setAttribute("opFlag",opFlag);
        request.setAttribute("currentPage",currentPage+"");
        request.setAttribute("pageCount",pageCount+"");

        Debug.println("process handler over,outFlag="+outFlag);
        return null;
    }
}