updatechargeservlet.java

来自「开发的一个java web的任务管理系统。」· Java 代码 · 共 72 行

package unicom.action;

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 unicom.factory.ServiceFactory;
import unicom.service.IChargeService;

/**
 * @author xiaogang
 * 日期：Apr 18, 2008
 * 功能：修改页面表单信息，从客户端取出收费项目和金额，保存到数据库中
 * 优点：
 * 缺点：
 * 建议：
 */
public class UpdateChargeServlet extends HttpServlet {

	/**
	 * 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 {
		//防止中文乱码
		request.setCharacterEncoding("UTF-8");
		response.setContentType("text/html;charset=UTF-8");
        //从客户端取得code和charge值
		String code = request.getParameter("code");
		String charge = request.getParameter("charge");
		//得到客户端输出流
		PrintWriter out = response.getWriter();
		
       //用简单工厂生成IChargeService对象
		IChargeService chargeService = ServiceFactory.createChargeService();
		if(chargeService.updateCharge(code, Double.parseDouble(charge)))
				out.println("修改成功");
		else
			    out.println("修改失败");

	}

	/**
	 * 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 {

		doGet(request, response);
	}

}