基于struts2框架+sql server2012数据库 实现用户注册登录功能

项目的背景

1、数据库：sql server2012

2、框架：struts2，其他的都是原始的java代码

3、前端是bootstrap框架

 

项目截图如下

用户的信息类

User.java

package cn.com.bean;

public class User {
private int id;
private String username;
private String password;
public int getId() {
	return id;
}
public void setId(int id) {
	this.id = id;
}
public String getUsername() {
	return username;
}
public void setUsername(String username) {
	this.username = username;
}
public String getPassword() {
	return password;
}
public void setPassword(String password) {
	this.password = password;
}
public User(int id, String username, String password) {
	super();
	this.id = id;
	this.username = username;
	this.password = password;
}
@Override
public String toString() {
	return "User [id=" + id + ", username=" + username + ", password="
			+ password + "]";
}
public User() {
	super();
}

}

 

对数据库的增删改查的封装类

package cn.com.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import cn.com.bean.User;
public class ConnectJdbc {
	public static Connection ct = null;
	public static PreparedStatement ps = null;
	public static ResultSet rs = null;
	//连接数据库
	public static Connection getconn(){
		// 1.加载驱动
		try {
			Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
			ct = DriverManager.getConnection(
					"jdbc:sqlserver://192.168.1.152:1433;databaseName = lay",
					"sa", "123456");
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return ct;
	}
	// 增改删
	public static void update(String sql, String[] sz) {
		try {
			ct=getconn();
			// 3.发送sql语句
			ps = ct.prepareStatement(sql);
			for (int i = 0; i < sz.length; i++) {
				ps.setString(i + 1, sz[i]);
			}
			// 4.执行
			ps.executeUpdate();
		} catch (Exception e) {
			e.printStackTrace();
			// TODO: handle exception
		} finally {
			try {
				ps.close();
				ct.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
//查询
	public static List select(String sql, String[] sz) {
		List list=new ArrayList();
		try {
			ct=getconn();
			// 3.发送sql语句
			ps = ct.prepareStatement(sql);
			for (int i = 0; i < sz.length; i++) {
				ps.setString(i + 1, sz[i]);
			}
			// 4.执行
			rs=ps.executeQuery();
			while (rs.next()) {
				User u=new User(rs.getInt(1), rs.getString(2), rs.getString(3));
				list.add(u);
			}
		} catch (Exception e) {
			e.printStackTrace();
			// TODO: handle exception
		} finally {
			try {
				rs.close();
				ps.close();
				ct.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		return list;
	}
}

 

登录注册的业务层

package cn.com.serice;
import java.io.IOException;
import java.util.List;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ModelDriven;
import cn.com.bean.User;
import cn.com.jdbc.ConnectJdbc;
public class Login implements ModelDriven {
	private User user = new User();
	public String login() {
		ConnectJdbc conn = new ConnectJdbc();
		String sql = "select * from [user] where username=? and password=?";
		System.out.println(user.getUsername() + ":" + user.getPassword());
		String[] sz = { user.getUsername(), user.getPassword() };
		List list = conn.select(sql, sz);
		String tom = "";
		if (list.size() > 0) {
			tom = "success";
		} else {
			tom = "error";
		}
		// ajax实现从注册到登录
		HttpServletResponse response = ServletActionContext.getResponse();
		response.setCharacterEncoding("utf-8");
		try {
			response.getWriter().write(tom);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return null;
	}

	// 用户注册
	public String regedit() {
		ConnectJdbc conn = new ConnectJdbc();
		String sql = "insert into  [user](username,password) values(?,?)";
		System.out.println(user.getUsername() + ":" + user.getPassword());
		String[] sz = { user.getUsername(), user.getPassword() };
		conn.update(sql, sz);
		return null;
	}

	@Override
	public User getModel() {
		// TODO Auto-generated method stub
		return user;
	}
}

 struts.xml文件

	
	
	
		
		
		/index.jsp
		
		
		
		
		
		
		
		

完整的代码在我的资源下载页

地址：https://download.csdn.net/download/qq_37591637/11251677