图书馆管理系统的实体封装类

最近做的图书馆管理系统，其包装的封装类是BaseDao 

1.图书的封装类：添加、删除、修改、查找

package com.jerech.dao;

import java.security.interfaces.RSAKey;
import java.sql.Date;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import javax.persistence.Id;

import com.jerech.entity.Book;
import com.jerech.entity.Member;

public class BookInfoDao extends baseDAO {
    // 添加图书
    public void bookReg(Book book) {
        StringBuilder sql = new StringBuilder(
                "insert into bookInfo(bookId,bookName,author,price,bookDate,amount)");
        sql.append("values(?,?,?,?,?,?)");
        String execsql = sql.toString();
        // 将util包下的Date转成SQL下的Date
        java.sql.Date bornDate = new java.sql.Date(book.getBookDate().getTime());

        Object[] params = { book.getBookNum(), book.getBookName(),
                book.getAuthor(), book.getPrice(), bornDate, book.getAmount() };
        super.execUpdate(execsql, params);
    }

    // 获取图书
    public List<Book> getAllBook() {
        String sql = "select * from bookInfo";
        ResultSet rs = super.execQuery(sql, null);
        List<Book> booklist = new ArrayList<Book>();

        try {
            while (rs.next()) {
                Book book = new Book();
                book.setBookNum(rs.getString("bookId"));
                book.setBookName(rs.getString("bookName"));
                book.setAuthor(rs.getString("author"));
                book.setPrice(rs.getFloat("price"));
                book.setBookDate(rs.getDate("bookDate"));
                book.setAmount(rs.getInt("amount"));
                booklist.add(book);
            }
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            super.closeAll();
        }
        return booklist;
    }

    // 删除图书
    public void bookDel(String id) {
        String sql = "delete from bookInfo where bookid=?";
        Object[] params = { id };
        super.execUpdate(sql, params);
    }

    // 按名称查找
    public Book findBookByName(String name) {
        String sql = "select * from bookInfo where bookName=?";
        Object[] params = { name };
        ResultSet rs = super.execQuery(sql, params);
        try {
            while (rs.next()) {
                Book book = new Book();
                book.setBookNum(rs.getString("bookId"));
                book.setBookName(rs.getString("bookName"));
                book.setAuthor(rs.getString("author"));
                book.setPrice(rs.getFloat("price"));
                book.setBookDate(rs.getDate("bookDate"));
                book.setAmount(rs.getInt("amount"));
                return book;
            }
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            super.closeAll();
        }
        return null;
    }

    // 按编号查找
    public Book findBookById(int id) {
        String sql = "select * from bookInfo where bookId=?";
        Object[] params = { id };
        ResultSet rs = super.execQuery(sql, params);
        try {
            while (rs.next()) {
                Book book = new Book();
                book.setBookNum(rs.getString("bookId"));
                book.setBookName(rs.getString("bookName"));
                book.setAuthor(rs.getString("author"));
                book.setPrice(rs.getFloat("price"));
                book.setBookDate(rs.getDate("bookDate"));
                book.setAmount(rs.getInt("amount"));
                return book;
            }
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            super.closeAll();
        }
        return null;
    }

    // 修改图书
    public void bookUpdate(Book book) {
        String sql = "update bookInfo set bookName=?,author=?,price=?,bookDate=?,amount=? where bookId=? ";
        java.sql.Date bornDate = new java.sql.Date(book.getBookDate().getTime());

        Object[] params = { book.getBookName(), book.getAuthor(),
                book.getPrice(), bornDate, book.getAmount(), book.getBookNum() };
        super.execUpdate(sql, params);

    }
}

2.用户的登陆、注册、修改、删除

package com.jerech.dao;

import java.sql.Date;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import com.jerech.entity.Member;
import com.jerech.entity.MemberBase;

public class UserInfoDao extends baseDAO {
    // 用户登录
    public boolean userLogin(String userName, String pwd) {
        String sql = "select userName,pwd from userInfo where userName=? and pwd=?";
        ResultSet rs = super.execQuery(sql, new Object[] { userName, pwd });
        try {
            if (rs.next()) {
                return true;
            }
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            super.closeAll();
        }
        return false;
    }

    // 注册用户
    public void userReg(Member member) {
        StringBuilder sql = new StringBuilder(
                "insert into userInfo(userName,pwd,email,sex,birthday,phoneNumber)");
        sql.append("values(?,?,?,?,?,?)");
        String execsql = sql.toString();
        // 将util包下的Date转成SQL下的Date
        java.sql.Date bornDate = new java.sql.Date(member.getBirthday()
                .getTime());

        Object[] params = { member.getMemberName(), member.getPwd(),
                member.getEmail(), member.getSex(), bornDate,
                member.getPhoneNumber() };
        super.execUpdate(execsql, params);
    }

    // 获取用户
    public List<Member> getAllUser() {
        String sql = "select * from userInfo";
        ResultSet rs = super.execQuery(sql, null);
        List<Member> userlist = new ArrayList<Member>();

        try {
            while (rs.next()) {
                Member member = new Member();
                member.setMemberId(String.valueOf(rs.getInt("uid")));
                member.setMemberName(rs.getString("userName"));
                member.setPwd(rs.getString("pwd"));
                member.setBirthday(rs.getDate("birthday"));
                member.setEmail(rs.getString("email"));
                member.setSex(rs.getString("sex"));
                member.setPhoneNumber(rs.getString("phoneNumber"));

                userlist.add(member);
            }
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            super.closeAll();
        }
        return userlist;
    }

    // 删除用户
    public void userDel(String id) {
        String sql = "delete from userInfo where uid=?";
        Object[] params = { id };
        super.execUpdate(sql, params);
    }

    // 查找用户
    public Member findMemberById(String uid) {
        String sql = "select * from userinfo where uid=?";
        Object[] params = { uid };
        ResultSet rs = super.execQuery(sql, params);
        try {
            if (rs.next()) {
                float store = 1f;
                Member member = new Member(rs.getString("userName"),
                        rs.getString("uid"), rs.getString("pwd"),
                        rs.getDate("birthday"), rs.getString("sex"),
                        rs.getString("phoneNumber"), rs.getString("email"),
                        rs.getFloat("money"));

                return member;
            }
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return null;
    }

    // 更新用户
    public void userUpdate(Member member) {
        String sql = "update userInfo set userName=?,email=?,sex=?,birthday=?,phoneNumber=? where uid=? ";
        java.sql.Date addDate = new java.sql.Date(member.getBirthday()
                .getTime());
        int uid = Integer.parseInt(member.getMemberId());
        Object[] params = { member.getMemberName(), member.getEmail(),
                member.getSex(), addDate, member.getPhoneNumber(), uid };
        super.execUpdate(sql, params);
    }
}