www.pudn.com > BeiJie.rar > DownerBackServlet.java

package EnterServlet; 
 
import java.io.IOException; 
import java.io.PrintWriter; 
import java.text.SimpleDateFormat; 
import java.util.Date; 
 
import javax.servlet.ServletException; 
import javax.servlet.http.HttpServlet; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
import javax.servlet.http.HttpSession; 
 
import operation.DownerBackOperation; 
 
 
public class DownerBackServlet extends HttpServlet 
{ 
	public final static String jdkDateFormat="yyyy-MM-dd"; 
	/** 
	 * Constructor of the object. 
	 */ 
	public DownerBackServlet() 
	{ 
		super(); 
	} 
 
	/** 
	 * Destruction of the servlet. 
 
	 */ 
	public void destroy() 
	{ 
		super.destroy(); // Just puts "destroy" string in log 
		// Put your code here 
	} 
 
	/** 
	 * The doGet method of the servlet. 
 
	 * 
	 * This method is called when a form has its tag value method equals to get. 
	 *  
	 * @param request the request send by the client to the server 
	 * @param response the response send by the server to the client 
	 * @throws ServletException if an error occurred 
	 * @throws IOException if an error occurred 
	 */ 
	public void doGet(HttpServletRequest request, HttpServletResponse response) 
			throws ServletException, IOException 
	{ 
 
		response.setContentType("text/html"); 
		PrintWriter out = response.getWriter(); 
		out.close(); 
	} 
 
	/** 
	 * The doPost method of the servlet. 
 
	 * 
	 * This method is called when a form has its tag value method equals to post. 
	 *  
	 * @param request the request send by the client to the server 
	 * @param response the response send by the server to the client 
	 * @throws ServletException if an error occurred 
	 * @throws IOException if an error occurred 
	 */ 
	public void doPost(HttpServletRequest request, HttpServletResponse response) 
			throws ServletException, IOException 
	{ 
 
		request.setCharacterEncoding("GB2312"); 
		response.setContentType("text/html;charset=gb2312"); 
		PrintWriter out=response.getWriter(); 
		DownerBackOperation dbo=new DownerBackOperation(); 
		 
		 
		//得到系统时间 
		Date date=new Date(); 
		java.sql.Date sqldate = null; 
		SimpleDateFormat dateFormat=new SimpleDateFormat(jdkDateFormat); 
		try 
		{ 
			 sqldate=new java.sql.Date(date.getTime()); 
		} 
		catch(Exception e) 
		{ 
			e.printStackTrace(); 
		} 
		 
		String DownerBackID=dbo.getDownerBackID();                                                     //得到退货编号 
		String SaleID=request.getParameter("SaleID");                                            //得到进货编号 
		int BackQuantity=Integer.parseInt(request.getParameter("BackQuantity"));                   //得到进货数量 
		String BackNotice=request.getParameter("BackNotice");                                      //得到进货备注 
		HttpSession session=request.getSession(); 
		String Chargeman=(String)session.getAttribute("userID");                          //得到经手人    
		java.sql.Date BackDate=sqldate;                                                            //得到退货日期 
		 
		 
		 
		float BackPrice=dbo.getPrice(SaleID);                                                     //得到退货价格 
		float BackSum=BackPrice*BackQuantity;                                                      //得到退货总金额 
		String ProductID=dbo.getProductID(SaleID);                                                //得到产品编号 
		 
		int b=dbo.checkSaleQuantity(SaleID, BackQuantity);   
		if(b==0) 
		{ 
			out.println(""); 
		} 
		else 
		{ 
		   int a=dbo.checkSum(SaleID, BackSum);   //判断金额 
		   if(a==-1) 
		   { 
			out.println(""); 
		   } 
		   else  
		   { 
		    dbo.DownerBackInsert(a, DownerBackID, SaleID, BackQuantity, BackSum, BackDate, Chargeman, BackNotice,ProductID); 
		    out.println(""); 
		   } 
		} 
		dbo.close(); 
		 
	} 
 
	/** 
	 * Initialization of the servlet. 
 
	 * 
	 * @throws ServletException if an error occure 
	 */ 
	public void init() throws ServletException 
	{ 
		// Put your code here 
	} 
 
}