providermodifyservlet.java

该源代码实现了系统的进货

package servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import operation.ProviderOperation;

public class ProviderModifyServlet extends HttpServlet
{

	/**
	 * Constructor of the object.
	 */
	public ProviderModifyServlet()
	{
		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");
		PrintWriter out = response.getWriter();
	}

	/**
	 * 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();
		
		boolean flag = true;
		try
		{
			String providerName = request.getParameter("providerName");
			if (providerName == "")
			{
				out.print("<script>alert('名字不能为空!');window.location.href='ProviderInsert.jsp';</script>"); 
				flag = false;
			}
			//得到页面内容
			int providerID=Integer.parseInt(request.getParameter("ProviderID"));
			String providerTax = request.getParameter("providerTax");	
			String providerTel = request.getParameter("providerTel");
			String providerConn = request.getParameter("providerConn");
			String providerAddress = request.getParameter("providerAddress");
			String providerBank = request.getParameter("providerBank");
			String providerAccount = request.getParameter("providerAccount");
			String providerNotice = request.getParameter("providerNotice");
			
			ProviderOperation operation = new ProviderOperation();
		
			operation.providerModify(flag, providerID, providerName, providerTax, providerTel, providerConn, providerAddress, providerBank , providerAccount, providerNotice);//给操作类传递参数，录入供货商信息
			operation.shut();
			
			out.print("<script>alert('修改成功!');window.location.href='ProviderCheckServlet';</script>"); 
		}   
		catch(Exception e) 
		{
			System.out.println("providerinsertservelet");
			e.printStackTrace();
		}
	}

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

}