payservlet.java

该源代码实现了系统的进货

package EnterServlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.*;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.Date;
import java.io.*;


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.PayOperation;


public class PayServlet extends HttpServlet {
	public final static String jdkDateFormat="yyyy-MM-dd";

	/**
	 * Constructor of the object.
	 */
	public PayServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * 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");
		
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * 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();
		PayOperation po=new PayOperation();
		
		
		String EnterID=request.getParameter("EnterID");                                            //得到进货编号
		String ShouldPayID="SP"+EnterID.substring(1,12);                                           //得到应付编号
		float PaySum=Float.parseFloat(request.getParameter("PaySum"));                             //得到付款金额     
		String PayNotice=request.getParameter("PayNotice");                                        //得到付款备注
		String PayID=po.getPayID();
		HttpSession session=request.getSession();
		String Chargeman=(String)session.getAttribute("userID");                          //得到经手人       
		
		
		//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();
		}
		
		java.sql.Date PayDate=sqldate;
		int a=po.CheckSum(ShouldPayID, PaySum);
		if(a==2)
		{
			out.println("<script> alert('付款金额大于应付金额，请核对后再输！');window.location.href='entercheck.jsp';</script>");
		}
		else
		{
			po.PayInsert(a, PayID, ShouldPayID, PaySum, Chargeman, PayDate, PayNotice);
			out.println("<script> alert('付款成功!');window.location.href='entercheck.jsp';</script>");
		}
		po.Close();
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}