基于JSP+JavaBean+Mysql+JDBC+Servlet实现javaWeb登录注册

package org.db.soft.server; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.db.soft.factory.MessageFactory; import org.db.soft.model.Person; /** * Message数据交互 * * @author admin * */ public class MessageServer extends HttpServlet { private String path = null; private String op = null; @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.doPost(request, response); } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { op = request.getParameter("op"); if (op == "regist" || "regist".equals(op)) { this.messageRegistServer(request, response); } else if (op == "login" || "login".equals(op)) { this.messageLoginServer(request, response); }else if(op == "update" || "update".equals(op)){ this.messageUpdateServer(request, response); }else if(op == "quit" || "quit".equals(op)){ this.messageQuitServer(request, response); } request.getRequestDispatcher(path).forward(request, response); } /** * 用户注册 Server * * @param request * @param response * @throws ServletException * @throws IOException */ private void messageRegistServer(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String personName = request.getParameter("personName"); String personPassword = request.getParameter("personPassword"); String personSex = request.getParameter("personSex"); String personAddr = request.getParameter("personAddr"); Person person = new Person(personName, personPassword, personSex, personAddr); boolean b = MessageFactory.instance().getMessageDao().registPerson(person); if (b) { path = "/view/login.jsp"; } } /** * 用户登录 Server * * @param request * @param response * @throws ServletException * @throws IOException */ private void messageLoginServer(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String personName = request.getParameter("personName"); String personPassword = request.getParameter("personPassword"); Person person = new Person(personName, personPassword); person = MessageFactory.instance().getMessageDao().loginPerson(person); if (person != null) { request.getSession().setAttribute("person", person); path = "/view/show.jsp"; } else { path = "/view/login.jsp"; } } /** * 修改用户信息 * @param request * @param response * @throws ServletException * @throws IOException */ private void messageUpdateServer(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int personId = Integer.parseInt(request.getParameter("personId")); String personName = request.getParameter("personName"); String personPassword = request.getParameter("personPassword"); String personAddr = request.getParameter("personAddr"); Person person = new Person(personId,personName, personPassword, personAddr); boolean b = MessageFactory.instance().getMessageDao().updatePerson(person); if (b) { path = "/view/login.jsp"; }else{ path = "/view/login.jsp"; } } /** * 退出系统 * @param request * @param response * @throws ServletException * @throws IOException */ private void messageQuitServer(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { Object object = request.getSession().getAttribute("person"); if(object != null){ request.getSession().removeAttribute("person"); } path = "/view/login.jsp"; } }