JSP作业-----图书管理

bookmanage.java

package bean;



public class bookmanage {
    private int b_id;
    private String b_name;
    private String b_author;
    private String b_time;
    private int b_type;
    public bookmanage() {
        super();
    }
    public bookmanage(int b_id,String b_name, String b_author, String b_time,
            int b_type) {
        super();
        this.b_id=b_id;
        this.b_name = b_name;
        this.b_author = b_author;
        this.b_time = b_time;
        this.b_type = b_type;
    }
    public int getB_id() {
        return b_id;
    }
    public void setB_id(int b_id) {
        this.b_id = b_id;
    }
    public String getB_name() {
        return b_name;
    }
    public void setB_name(String b_name) {
        this.b_name = b_name;
    }
    public String getB_author() {
        return b_author;
    }
    public void setB_author(String b_author) {
        this.b_author = b_author;
    }
    public String getB_time() {
        return b_time;
    }
    public void setB_time(String b_time) {
        this.b_time = b_time;
    }
    public int getB_type() {
        return b_type;
    }
    public void setB_type(int b_type) {
        this.b_type = b_type;
    }
    
}

 baSeDao.java

package dao;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class BaseDao {    
    //获取连接
    protected Connection getConnection(){
        Connection conn=null;
            try {
                Class.forName("com.mysql.jdbc.Driver");
                // 2.建立连接
                conn = DriverManager.getConnection(
                        "jdbc:mysql://localhost:3306/mysql", "root", "root");
            } catch (Exception e) {
                e.printStackTrace();
            } 
            return conn;
    }     
    
    
    //关闭连接
    protected void closeAll(Connection con,PreparedStatement ps,ResultSet rs){        
    try {
        if(rs != null)
            rs.close();
        if(ps != null)
            ps.close();
        if(con != null)
            con.close();
        
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

}

bookmanageDao.java

package dao;

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

import bean.bookmanage;

public class bookmanageDao extends BaseDao{

    public  List<bookmanage> selectall() {
        ArrayList<bookmanage> list  = new ArrayList<bookmanage>();
        Connection conn = null;
        PreparedStatement ps =null;
        ResultSet rs = null;
        try {
             conn = getConnection();
            String sql = "select * from  bookmanage";
             ps = conn.prepareStatement(sql);
             rs = ps.executeQuery();
            while(rs.next()){
                bookmanage b = new bookmanage();
                b.setB_id(rs.getInt(1));
                b.setB_name(rs.getString(2));
                b.setB_author(rs.getString(3));
                b.setB_time(rs.getString(4));
                b.setB_type(rs.getInt(5));
                
                list.add(b);
            }
        
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally{
            closeAll(conn, ps, rs);
        }
        return list;
    }
    
    public int insert(bookmanage b){
        Connection conn=getConnection();
        String sql="insert into bookmanage (b_id,b_name,b_author,b_time,b_type)values(?,?,?,?)";
        PreparedStatement ps=null;
        int i=0;
        try {
             ps=conn.prepareStatement(sql);
             ps.setInt(1,b.getB_id());
            ps.setString(2,b.getB_name());
            ps.setString(3, b.getB_author());
            ps.setString(4, b.getB_time());
            ps.setInt(5, b.getB_type());
            i=ps.executeUpdate();
            
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }    finally{
            closeAll(conn, ps, null);
        }
        return i;
    }
    
    public int delete(int b_id){
        Connection conn=getConnection();
        String sql="delete from bookmanage where b_id = ?";
        PreparedStatement ps=null;
        int i=0;
        try {
             ps=conn.prepareStatement(sql);    
            ps.setInt(1, b_id);
            i=ps.executeUpdate();
            
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }    finally{
            closeAll(conn, ps, null);
        }
        return i;
    }
}

index.jsp

<%@page import="bean.bookmanage"%>
<%@page import="dao.bookmanageDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<html>

  
  <body>

  <table cellspacing="0" border="1px" width="549" height="66" style="margin: 0pt auto;">
      <tr>
        <th>id</th>
          <th>图书名称</th>
          <th>图书作者</th>    
          <th>购买时间</th>    
          <th>图书分类</th>    
          <th>操作</th>        
      </tr>



       <%
           bookmanageDao bd = new bookmanageDao();
          List<bookmanage> list = bd.selectall(); 
          %>
    <%for(bookmanage b:list){ %>
    <tr>
    <td><%b.getB_id(); %></td>
    <td><%b.getB_name(); %></td>
    <td><%b.getB_author() ;%></td>
    <td><%b.getB_time() ;%></td>
    <td><%b.getB_type(); %></td>
    <td><a href="delete.jsp?b_id=<%=b.getB_id()%>">删除</a></td>
    </tr>
      <%} %>
  </table>
   <h2><a href="insert.jsp">添加书籍</a></h2>
  </body>
</html>

insert.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<html>

  
  <body>
  <form action="doinsert.jsp">
   <h2>新增书籍信息</h2>
   图书名称：<input type="text" name = "b_name">
   </br>
   图书作者：<input type="text" name = "b_author">
   </br>
   购买日期<input type="text" name = "b_time">yyyy-Mm-dd格式
      </br>
     图书类别：<select name="b_type">
         
          <option value="0">请选择所属分类</option>
          <option value="1">小说/散文</option>
          <option value="2">诗歌/文摘</option>
          <option value="3">名著</option>
     </select>
     </br>
     <input type="submit" value="增加书籍">
     </form>
  </body>
</html>

doinsert.jsp

<%@page import="dao.bookmanageDao"%>
<%@page import="bean.bookmanage"%>
<%@page import="java.text.SimpleDateFormat"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<html>

  
  <body>
<%
    
    int b_type = Integer.parseInt(request.getParameter("b_type"));
    String b_name = request.getParameter("b_name");
    String b_author= request.getParameter("b_author");
    String b_time = request.getParameter("b_time");
    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
    Date time = sdf.parse(b_time);
    bookmanage b = new bookmanage();
    b.setB_type(b_type);
    b.setB_author(b_author);
    b.setB_name(b_name);
    b.setB_time(b_time);
    bookmanageDao bd = new bookmanageDao();
    bd.insert(b); 
          response.sendRedirect("index.jsp");
    
 %>
  </body>
</html>

delete.jsp

<%@page import="dao.bookmanageDao"%>
<%@page import="bean.bookmanage"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'delete.jsp' starting page</title>
    
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>
  
  <body>
  <div align="center"><%
      
      int b_id = Integer.parseInt(request.getParameter("b_id"));
      bookmanageDao bd = new bookmanageDao();
      bd.delete(b_id); 
      response.sendRedirect("index.jsp");
      
   %> <br> 
  </div></body>
</html>