c110servlet.java

java 打印编程实例

package com.house.project.S1.M11.C110;

/**
 * <p>Title:             DisposeServlet.java
 * <p>Description:       菜单系统配置
 * <p>Copyright:         Copyright (c) 2006
 * <p>Company:           Yangxh
 * @author               Wufz
 * @version	             v1.0
 * @see		             com.yangxh.project.fundamental.wdxx.WangdianServlet
 *********************************************************************************************
 *   Date      *         Developers ID      *      Modlog        *         Description       *
 *********************************************************************************************
 03/07/2006	          Wufz	                             	             V1.0
 */
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.jasper.runtime.JspRuntimeLibrary;
//import com.house.project.S1.M11.C110.C110Dao;
import com.house.project.exception.SQLException;
import com.house.project.exception.UnAuthorizedException;
import com.house.project.servlet.BusinessServlet;
import com.house.util.DataTransfer;
import com.house.util.PageControl;
import com.house.project.S1.C1Bean;

public class C110Servlet extends BusinessServlet {
	private String path = "/jsp/S1/M11/C110/";
	/* 处理post请求 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws IOException, ServletException {
		response.setContentType("text/html;charset=GBK");

		try {
			String functionMthodName = checkPost(request, response); // 用户请求验证，若成功返回请求功能方法名

			if (functionMthodName.equalsIgnoreCase("SEARCH")) {
				search(request, response);
			} else if (functionMthodName.equalsIgnoreCase("ADD")) {
				add(request, response);
			} else if (functionMthodName.equalsIgnoreCase("MODIFY")) {
				modify(request, response);
			} else if (functionMthodName.equalsIgnoreCase("DELETE")) {
				delete(request, response);
			}
			else if (functionMthodName.equalsIgnoreCase("DETAIL")) {
				detail(request, response);
			}
//			else if (functionMthodName.equalsIgnoreCase("PRINT")) {
//				print(request, response);
//			}

		} catch (UnAuthorizedException ue) // 用户权限验证失败
		{
			handlerException(request, response, ue.getMessage());
		} catch (SQLException e) // 数据库操作失败
		{
			handlerException(request, response, e);
		}
	}

	/* 处理Get请求 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws IOException, ServletException {
		
		String functionID = request.getParameter("functionID");
		String selectedValue = request.getParameter("selectedValue");
		int id = -1;
		if (selectedValue != null && !selectedValue.trim().equals("")){
			id = Integer.parseInt(selectedValue);
		}
		
		try {
			if (functionID !=null && !functionID.trim().equals("") ){
				print(request, response,id);
			}
			else{
				search(request, response);
			}
		} 
		catch (SQLException e) // 数据库操作失败
		{
			handlerException(request, response, e);
		}
	}

	// 处理网点信息查询功能
	private void search(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, SQLException, IOException {

		  String parm1;
          String parm2;
          parm1 = request.getParameter("parm1");
          if(parm1 == null)
        	  request.setAttribute("parm1", "");
          else
        	  request.setAttribute("parm1", parm1);

          parm2 = request.getParameter("parm2");
          if(parm2 == null)
        	  request.setAttribute("parm2", "");
          else
        	  request.setAttribute("parm2", parm2);

        int curpage ;
          String reSearchFlag = request.getParameter("ReSearch");

          if(reSearchFlag != null)  //重新查询, jumpPage应该设为1
          {
                  curpage = 1;
          }
          else
          {
                  String jumpPage = request.getParameter("jumpPage") ;

              if(jumpPage == null)
              {
                      curpage = 1 ;
                  }
                  else
                  {
                      curpage = Integer.parseInt(jumpPage) ;
                  }
          }

          if(parm1==null || parm1.equals(""))
          {
        	  parm1 = null;
          }
          else
          {
        	  parm1 = DataTransfer.toDBString(parm1);
          }

          if(parm2==null || parm2.equals(""))
          {
        	  parm2 = null;
          }
          else
          {
        	  parm2 = DataTransfer.toDBString(parm2);
          }

          C110Dao dao = new C110Dao();
          PageControl pageCtl = dao.searchParaByName(parm1, parm2, curpage);
          request.setAttribute("pageCtl", pageCtl);

          this.getServletContext().getRequestDispatcher(path +"index.jsp").forward(request , response);
	      return;
      
	}
	private void add(HttpServletRequest request, HttpServletResponse response)
	throws ServletException, SQLException, IOException {

		String status = request.getParameter("status"); // 用该状态来标识是进入增加页面还是增加后保存动作
		if (status == null) // 进入增加初始页面
		{
			this.getServletContext().getRequestDispatcher(
					path + "add.jsp").forward(request, response);
			return;
		}
		else
		{
			C1Bean bean = new C1Bean();
		    JspRuntimeLibrary.introspect(bean, request);
		    C110Dao dao = new C110Dao();
		    dao.insertItem(bean);
			search(request, response);
		}
	}
		
		private void modify(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, SQLException, IOException {
		String status = request.getParameter("status");
		if (status == null)
		{
			int id = Integer.parseInt(request.getParameter("selectedValue"));
			C110Dao dao = new C110Dao();
			C1Bean bean = dao.getItem(id);
			request.setAttribute("bean", bean);
			this.getServletContext().getRequestDispatcher(path + "modify.jsp")
					.forward(request, response);
		}
		else
		{
		
			C1Bean bean = new C1Bean();
			JspRuntimeLibrary.introspect(bean, request);
			C110Dao dao = new C110Dao();
			try
			{
				dao.updateItem(bean);
			}
			catch (SQLException e)
			{
				handlerException(request, response, e.getMessage());
				return;
			}
			search(request, response);
		}
	}
		
		private void delete(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, SQLException, IOException {
		String[] allNo = request.getParameterValues("selectedValue");
		C110Dao dao = new C110Dao();
		dao.removeItems(allNo);
		search(request, response);
		return;
		}
		
		private void detail(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, SQLException, IOException {
		int id = Integer.parseInt(request.getParameter("selectedValue"));
		
		C110Dao dao = new C110Dao();
		C1Bean bean = dao.getItem(id);
		request.setAttribute("bean", bean);
		this.getServletContext().getRequestDispatcher(path + "detail.jsp")
				.forward(request, response);
		return;
		}
		
		private void print(HttpServletRequest request, HttpServletResponse response, int id)
		throws ServletException, SQLException, IOException {
		//int id = Integer.parseInt(request.getParameter("selectedValue"));
		
		C110Dao dao = new C110Dao();
		C1Bean bean = dao.getItem(id);
		request.setAttribute("bean", bean);
		this.getServletContext().getRequestDispatcher(path + "print.jsp")
				.forward(request, response);
		return;
		}
}