changepublic.java

基于struts的网上商店源码

package com.mole.servlet;

import java.io.IOException;

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

import com.mole.struts.dao.DBConnector;

public class changePublic extends HttpServlet {
	private DBConnector dbc = new DBConnector();

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

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

	/**
	 * 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 {
		String type = request.getParameter("type");
		String cid = request.getParameter("cid");
		String column = "";
		if ("shopped".equals(type))
			column = "[ShowShopped]";
		else if ("record".equals(type))
			column = "[ShowRecord]";
		String sql = "UPDATE [Customer] SET " + column + "=1-" + column
				+ " WHERE [ID]=?";
		try {
			dbc.executeUpdate(sql, cid);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

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

}