JavaWeb 登陆操作和注册操作的实现

User1.java



package cn.csdn.web.domain;

import java.io.Serializable;

import java.sql.Blob;

import java.sql.Date;

import java.sql.Time;

import java.sql.Timestamp;

public class User1 implements Serializable {

private int id;

private String name;

private String pass;

private String sex;

private Date birthday;

private Timestamp nowday;

private Double salary;

private Blob photo;





public User1() {

super();

// TODO Auto-generated constructor stub

}





public User1(int id, String name, String pass, String sex, Date birthday,

Timestamp nowday, Blob photo) {

super();

this.id = id;

this.name = name;

this.pass = pass;

this.sex = sex;

this.birthday = birthday;

this.nowday = nowday;

this.photo = photo;

}

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getPass() {

return pass;

}

public void setPass(String pass) {

this.pass = pass;

}

public String getSex() {

return sex;

}

public void setSex(String sex) {

this.sex = sex;

}

public Date getBirthday() {

return birthday;

}

public void setBirthday(Date birthday) {

this.birthday = birthday;

}

public Timestamp getNowday() {

return nowday;

}

public void setNowday(Timestamp nowday) {

this.nowday = nowday;

}







public Double getSalary() {

return salary;

}

public void setSalary(Double salary) {

this.salary = salary;

}

public Blob getPhoto() {

return photo;

}

public void setPhoto(Blob photo) {

this.photo = photo;

}







}



Dao.java



package cn.csdn.web.dao;

import cn.csdn.web.domain.User1;

public interface Dao {



boolean login(String name,String pass);

boolean register(User1 user1);

}



DaoImpl.java



package cn.csdn.web.dao;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;

import cn.csdn.web.domain.User1;

public class DaoImpl implements Dao {

private static Connection conn=null;

private PreparedStatement pstmt= null;

private ResultSet rs=null;



private static String url="jdbc:mysql://localhost:3306/3g?user=root&password=1234&useUnicode=true&characterEncoding=UTF8";



static {



try {

Class.forName("com.mysql.jdbc.Driver");



try {

conn= DriverManager.getConnection(url);

} catch (SQLException e) {



e.printStackTrace();

}







} catch (ClassNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}





}





public boolean login(String name, String pass) {

// TODO Auto-generated method stub



boolean flag=false;



String sql="select id,name,pass from user1 where name=? and pass=?";



try {

pstmt= conn.prepareStatement(sql);



int index=1;

pstmt.setObject(index++, name);

pstmt.setObject(index++,pass);





rs= pstmt.executeQuery();



if(rs.next()){



flag=true;

}





} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}finally{





release(rs,pstmt);

}















return flag;



}

private void release(ResultSet rs, PreparedStatement pstmt) {

// TODO Auto-generated method stub



try {

rs.close();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

try {

pstmt.close();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}





}

public boolean register(User1 user1) {

// TODO Auto-generated method stub

boolean flag=false;

String sql="insert into user1 (id,name,pass,sex,birthday,nowday,salary,photo) values(?,?,?,?,?,?,?,?)";

try {

pstmt= conn.prepareStatement(sql);

int index=1;

pstmt.setObject(index++,user1.getId());

pstmt.setObject(index++,user1.getName());

pstmt.setObject(index++,user1.getPass());

pstmt.setObject(index++,user1.getSex());

pstmt.setObject(index++,user1.getBirthday());

pstmt.setObject(index++,user1.getNowday());

pstmt.setObject(index++,user1.getSalary());

pstmt.setObject(index++,user1.getPhoto());



int i= pstmt.executeUpdate();

if(i>0){



flag=true;

}















} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}finally{

if(pstmt!=null){

try {

pstmt.close();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}











return flag;

}

}

MyServlet.java



package cn.csdn.servlet;

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 cn.csdn.web.dao.Dao;

import cn.csdn.web.dao.DaoImpl;

public class MyServlet extends HttpServlet {



Dao dao= new DaoImpl();



public void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {



doPost(request, response);

}



public void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {



request.setCharacterEncoding("utf-8");







String uname=request.getParameter("uname");

String upass=request.getParameter("upass");



boolean flag= dao.login(uname, upass);



if(flag){



response.sendRedirect("success.jsp");

}else{

response.sendRedirect("error.jsp");

}





String username=request.getParameter("uname");

























}

}

RegisterServlet.java

package cn.csdn.servlet;

import java.io.IOException;

import java.io.PrintWriter;

import java.util.Date;

import java.sql.Timestamp;

import java.text.DateFormat;

import java.text.ParseException;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import cn.csdn.web.dao.Dao;

import cn.csdn.web.dao.DaoImpl;

import cn.csdn.web.domain.User1;

public class RegisterServlet extends HttpServlet {

Dao dao= new DaoImpl();



public void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

doPost(request, response);



}

public void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {



request.setCharacterEncoding("UTF-8");



String name= request.getParameter("uname");

String password= request.getParameter("upass");

String sex= request.getParameter("sex");

String birthday1=request.getParameter("birthday");

String nowday=request.getParameter("nowday");

String salary1 = request.getParameter("salary1");





Double salary = Double.valueOf(salary1);



DateFormat dateformat= DateFormat.getDateInstance();

Date birthday=null;

try {

birthday= dateformat.parse(birthday1);

} catch (ParseException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}



User1 user1= new User1();





user1.setName(name);

user1.setPass(password);

user1.setSex(sex);

user1.setBirthday(null);

user1.setNowday(new Timestamp(System.currentTimeMillis()));



user1.setSalary(salary);

user1.setPhoto(null);



boolean flag = dao.register(user1);



if(flag){



System.out.println("注册成功");

}else{



System.out.println("注册失败");

}



























}

}