结合struts使用AJAX验证密码是否正确（三）

loginAction和loginForm代码：

package com.measinfo.struts.action;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;import javax.sql.*;import java.sql.*;import org.apache.struts.action.Action;import org.apache.struts.action.ActionForm;import org.apache.struts.action.ActionForward;import org.apache.struts.action.ActionMapping;import com.measinfo.struts.form.LoginForm;public class LoginValAction extends Action {public ActionForward execute(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response) {LoginForm loginForm = (LoginForm) form;// TODO Auto-generated method stub//String username =loginForm.getUsername();String username =request.getParameter("username");String password =loginForm.getPassword();System.out.println(username);System.out.println(password);try {Connection con =this.getDataSource(request,"keyOne").getConnection();Statement st =con.createStatement();String sql="select password from person where name='"+username+"'";ResultSet rs =st.executeQuery(sql);System.out.println(sql);if(rs.next()){if(rs.getString(1).equals(password)){response.getWriter().print("true");return null;}else{response.getWriter().print("false");return null;}}return null;} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();return mapping.findForward("no");}}}

loginForm代码：

/* * Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */package com.measinfo.struts.form;import javax.servlet.http.HttpServletRequest;import org.apache.struts.action.ActionErrors;import org.apache.struts.action.ActionForm;import org.apache.struts.action.ActionMapping;/** * MyEclipse Struts * Creation date: 07-28-2010 * * XDoclet definition: * @struts.form name="loginForm" */public class LoginForm extends ActionForm {/* * Generated fields *//** userName property */private String username;/** password property */private String password;/* * Generated Methods *//** * Method validate * @param mapping * @param request * @return ActionErrors */public ActionErrors validate(ActionMapping mapping,HttpServletRequest request) {// TODO Auto-generated method stubreturn null;}/** * Method reset * @param mapping * @param request */public void reset(ActionMapping mapping, HttpServletRequest request) {// TODO Auto-generated method stub}/** * Returns the userName. * @return String */public String getUsername() {return username;}/** * Set the userName. * @param userName The userName to set */public void setUsername(String userName) {System.out.println(userName+"..................");this.username = userName;}/** * Returns the password. * @return String */public String getPassword() {return password;}/** * Set the password. * @param password The password to set */public void setPassword(String password) {this.password = password;}}