deleteemployeeservlet.java

JAVA案例开发集锦源代码 袁然 郑自国编

package ninth;

import java.io.IOException;

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

/**
 * @author wangmj
 * @mail <a mailto="[e-mail]"> 2005-4-18 2005
 * 
 * DeleteEmployeeServlet.java
 */
public class DeleteEmployeeServlet extends HttpServlet {
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws IOException, ServletException {
		response.setContentType("text/html;charset=gb2312");
		String servletPath = request.getServletPath();
		System.out.println("ServletPath=" + servletPath);
		String pathInfo = (request.getPathInfo()).trim();
		HttpSession session = request.getSession();
		//取得servlet请求的路径信息
		if (pathInfo.equals("/DeleteEmployeeServlet")) {
			//Object o = request.getAttribute("employee");
			//在这里可以通过session来实现两个Servlet之间的通信
			Object o = session.getAttribute("employee");
			EmployeeDataBean edb = (EmployeeDataBean)o;
			if (o == null) {
				System.out.println("session.getAttribute(\"employee\")=null");
				request.getRequestDispatcher("/test/sjsp/deleteFailure.jsp")
				.forward(request, response);				
			} else {
				System.out.println("删除“employee”对象开始...");
				System.out.println(edb.getId());
				System.out.println(edb.getName());
				System.out.println(edb.getAddress());
				System.out.println(edb.getAge());
				session.removeAttribute("employee");
				System.out.println("“employee”对象已经被删除");
				request.getRequestDispatcher("/test/sjsp/deleteEmployee.jsp")
						.forward(request, response);
			}
		}
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws IOException, ServletException {
		doGet(request,response);
	}
}