diff --git "a/03 \345\276\220\351\233\250\346\231\264/20230529   JSP\345\205\245\351\227\250\342\200\224\342\200\224\351\241\265\351\235\242\347\232\204\345\242\236\345\210\240\346\224\271\346\237\245.md" "b/03 \345\276\220\351\233\250\346\231\264/20230529   JSP\345\205\245\351\227\250\342\200\224\342\200\224\351\241\265\351\235\242\347\232\204\345\242\236\345\210\240\346\224\271\346\237\245.md"
new file mode 100644
index 0000000000000000000000000000000000000000..6cdf499957a38cc8dab0c1a99246b4f5c371c081
--- /dev/null
+++ "b/03 \345\276\220\351\233\250\346\231\264/20230529   JSP\345\205\245\351\227\250\342\200\224\342\200\224\351\241\265\351\235\242\347\232\204\345\242\236\345\210\240\346\224\271\346\237\245.md"	
@@ -0,0 +1,96 @@
+```java
+create database DB_brand charset utf8;
+use db_brand;
+create table brands(
+	id int,
+	name varchar(15),
+	company varchar(30),
+	description varchar(100),
+	status int not null default 1 comment '状态：0禁用1启用'
+);
+insert into brands values 
+(1,'三只松鼠','北京二只松鼠科技有限公司','二只松鼠是中国领先的休闲零食品牌',1),
+(2,'百草味','上海百草味零食有限公司','百草味是一家致力于绿色、天然、健康、美味的特产零食品牌',1),
+(3,'米伊价','湖南米伊价食品股份有限公司','米伊价是中国知名粮食制品加工商之一',1);
+```
+
+```java
+package dao;
+
+import bean.Brand;
+import utils.DBUtil;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+
+public class BrandDao {
+    //查询所有品牌
+    public List<Brand> getAllBrand() throws SQLException {
+            ArrayList<Brand> list = new ArrayList<>();
+            String sql="selec t* from brands";
+            ResultSet rst = DBUtil.query(sql);
+            try {
+                while (rst.next()) {
+                    int id = rst.getInt("id");
+                    String name = rst.getString("name");
+                    String company = rst.getString("company");
+                    String description = rst.getString("description");
+                    int status = rst.getInt("status");
+
+                    Brand brand = new Brand(id, name, company, description, status);
+                    list.add(brand);
+                }
+            } catch (SQLException e) {
+                e.printStackTrace();
+            } finally {
+                try {
+                    DBUtil.close(null,null,rst);
+                } catch (SQLException e) {
+                    e.printStackTrace();
+                }
+            }
+            return list;
+        }
+    //按ID查询品牌
+    public Brand getABrandById(int id) throws SQLException {
+        Brand brand=null;
+        String sql = "select * from brands where id=?";
+        ResultSet rst = DBUtil.query(sql,id);
+        try {
+            while (rst.next()) {
+                String name = rst.getString("name");
+                String company = rst.getString("company");
+                String description = rst.getString("description");
+                int status = rst.getInt("status");
+                brand=new Brand(id, name, company, description, status);
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                DBUtil.close(null,null,rst);
+            } catch (SQLException e) {
+                e.printStackTrace();
+            }
+        }
+        return brand;
+    }
+    //添加新品牌
+    public int addBrand(Brand brand){
+        String sql = "insert into brands  (name,company,description) values (?,?,?)";
+        int i=0;
+        try {
+            i = DBUtil.update(sql, brand.getName(), brand.getCompany(), brand.getDescription());
+        } catch (SQLException e) {
+            e.printStackTrace();        }
+        return i;
+    }
+    //修改某品牌
+
+    //按ID删除
+}
+
+```
+
diff --git "a/03 \345\276\220\351\233\250\346\231\264/20230603   JSP\346\265\213\350\257\225\342\200\224\342\200\224\350\275\246\350\276\206\344\277\241\346\201\257\347\256\241\347\220\206.md" "b/03 \345\276\220\351\233\250\346\231\264/20230603   JSP\346\265\213\350\257\225\342\200\224\342\200\224\350\275\246\350\276\206\344\277\241\346\201\257\347\256\241\347\220\206.md"
new file mode 100644
index 0000000000000000000000000000000000000000..906cb43f10a7360a6c4d8bd6bdd9556038d56f86
--- /dev/null
+++ "b/03 \345\276\220\351\233\250\346\231\264/20230603   JSP\346\265\213\350\257\225\342\200\224\342\200\224\350\275\246\350\276\206\344\277\241\346\201\257\347\256\241\347\220\206.md"	
@@ -0,0 +1,515 @@
+MySQL建库建表
+
+```mysql
+create database CarInfo charset utf8;
+
+use CarInfo;
+
+create table Brand(
+BrandID int primary key auto_increment,
+BrandName varchar(50)
+);
+
+create table CarDetail(
+CID int primary key auto_increment,
+Cname varchar(20),
+Content varchar(200) not null,
+ltime timestamp default now() not null,
+price int,
+BrandID int,
+foreign key (BrandID) references Brand(BrandID)
+);
+
+insert into Brand values (0,'奔驰C200'),(0,'奥迪A4L'),(0,'劳斯莱斯888');
+
+insert into CarDetail values (0,'奔驰','豪车','2023.06.04',300000,1),(0,'奥迪','适合年轻人的一款车','2023.06.04',410000,2),(0,'劳斯莱斯','裕铭银行时宴的专属座驾','2023.06.04',5000000,3);
+```
+
+JSP网页设计
+
+```java
+package bean;
+
+public class Brand {
+    private int brandId;
+    private String brandName;
+
+public int getBrandId() {
+    return brandId;
+}
+
+public void setBrandId(int brandId) {
+    this.brandId = brandId;
+}
+
+public String getBrandName() {
+    return brandName;
+}
+
+public void setBrandName(String brandName) {
+    this.brandName = brandName;
+}
+
+public Brand() {
+}
+
+public Brand(int brandId, String brandName) {
+    this.brandId = brandId;
+    this.brandName = brandName;
+}
+}
+```
+
+```java
+package bean;
+
+import javax.xml.crypto.Data;
+import java.util.Date;
+
+public class Car {
+    private int cid;
+    private String cname;
+    private String content;
+    private Date ltime;
+    private int price;
+    private int brandId;
+    private String brandName;
+    
+public int getCid() {
+    return cid;
+}
+
+public void setCid(int cid) {
+    this.cid = cid;
+}
+
+public String getCname() {
+    return cname;
+}
+
+public void setCname(String cname) {
+    this.cname = cname;
+}
+
+public String getContent() {
+    return content;
+}
+
+public void setContent(String content) {
+    this.content = content;
+}
+
+public Date getLtime() {
+    return ltime;
+}
+
+public void setLtime(Date ltime) {
+    this.ltime = ltime;
+}
+
+public int getPrice() {
+    return price;
+}
+
+public void setPrice(int price) {
+    this.price = price;
+}
+
+public int getBrandId() {
+    return brandId;
+}
+
+public void setBrandId(int brandId) {
+    this.brandId = brandId;
+}
+
+public String getBrandName() {
+    return brandName;
+}
+
+public void setBrandName(String brandName) {
+    this.brandName = brandName;
+}
+
+public Car() {
+}
+
+public Car(int cid, String cname, String content, Date ltime, int price, int brandId, String brandName) {
+    this.cid = cid;
+    this.cname = cname;
+    this.content = content;
+    this.ltime = ltime;
+    this.price = price;
+    this.brandId = brandId;
+    this.brandName = brandName;
+}
+}
+```
+
+```java
+            package servlet;
+
+import bean.Brand;
+import bean.Car;
+import utils.DBUtil;
+
+import javax.servlet.*;
+import javax.servlet.http.*;
+import javax.servlet.annotation.*;
+import java.io.IOException;
+import java.sql.*;
+import java.util.ArrayList;
+
+@WebServlet("/add")
+public class Add extends HttpServlet {
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        String sql = "select * from Brand";
+        ArrayList<Brand> list = new ArrayList<>();
+        Connection conn=null;
+        PreparedStatement pst = null;
+        ResultSet rst = null;
+        try {
+            conn = DBUtil.getConn();
+            pst = conn.prepareStatement(sql);
+            rst = pst.executeQuery();
+            while (rst.next()) {
+                int id = rst.getInt("brandId");
+                String name = rst.getString("brandName");
+            Brand brand = new Brand(id, name);
+            list.add(brand);
+        }
+    } catch (SQLException e) {
+        throw new RuntimeException(e);
+    } finally {
+        DBUtil.close(conn,pst,rst);
+    }
+    request.setAttribute("list",list);
+    request.getRequestDispatcher("/WEB-INF/form.jsp").forward(request,response);
+}
+
+@Override
+protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+}
+}
+```
+
+```java
+           package servlet;
+
+import bean.Car;
+import utils.DBUtil;
+
+import javax.servlet.*;
+import javax.servlet.http.*;
+import javax.servlet.annotation.*;
+import java.io.IOException;
+import java.sql.*;
+import java.util.ArrayList;
+import java.util.Collection;
+
+@WebServlet("/list")
+public class List extends HttpServlet {
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        String sql = "select * from cardetail c,brand b where b.BrandID=c.BrandID";
+        ArrayList<Car> list = new ArrayList<>();
+        Connection conn=null;
+        PreparedStatement pst = null;
+        ResultSet rst = null;
+        try {
+            conn = DBUtil.getConn();
+            pst = conn.prepareStatement(sql);
+            rst = pst.executeQuery();
+            while (rst.next()) {
+                int id = rst.getInt("cid");
+                String name = rst.getString("cname");
+                String content = rst.getString("content");
+                Date date = rst.getDate("ltime");
+                int price = rst.getInt("price");
+                String brandName = rst.getString("brandName"); package servlet;
+
+import bean.Car;
+import utils.DBUtil;
+
+import javax.servlet.*;
+import javax.servlet.http.*;
+import javax.servlet.annotation.*;
+import java.io.IOException;
+import java.sql.*;
+import java.util.ArrayList;
+import java.util.Collection;
+
+@WebServlet("/list")
+public class List extends HttpServlet {
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        String sql = "select * from cardetail c,brand b where b.BrandID=c.BrandID";
+        ArrayList<Car> list = new ArrayList<>();
+        Connection conn=null;
+        PreparedStatement pst = null;
+        ResultSet rst = null;
+        try {
+            conn = DBUtil.getConn();
+            pst = conn.prepareStatement(sql);
+            rst = pst.executeQuery();
+            while (rst.next()) {
+                int id = rst.getInt("cid");
+                String name = rst.getString("cname");
+                String content = rst.getString("content");
+                Date date = rst.getDate("ltime");
+                int price = rst.getInt("price");
+                String brandName = rst.getString("brandName");
+            Car car = new Car(id, name, content, date, price, 0, brandName);
+            list.add(car);
+        }
+    } catch (SQLException e) {
+        throw new RuntimeException(e);
+    } finally {
+        DBUtil.close(conn,pst,rst);
+    }
+    request.setAttribute("list",list);
+    request.getRequestDispatcher("/WEB-INF/list.jsp").forward(request,response);
+}
+
+@Override
+protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+}
+}
+```
+
+```java
+package servlet;
+
+import utils.DBUtil;
+
+import javax.servlet.*;
+import javax.servlet.http.*;
+import javax.servlet.annotation.*;
+import java.io.IOException;
+import java.sql.Connection;
+import java.sql.Date;
+import java.sql.PreparedStatement;
+import java.sql.SQLException;
+
+@WebServlet("/save")
+public class Save extends HttpServlet {
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+}
+
+@Override
+protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+    request.setCharacterEncoding("utf-8");
+    String name = request.getParameter("name");
+    int brandId = Integer.parseInt(request.getParameter("brandId"));
+    String content = request.getParameter("content");
+    int price = Integer.parseInt(request.getParameter("price"));
+    String date = request.getParameter("ltime");
+    System.out.println(date);
+
+    String sql = "insert into cardetail values (?,?,?,?,?,?)";
+    int i = 0;
+    Connection conn = null;
+    PreparedStatement pst = null;
+    try {
+        conn = DBUtil.getConn();
+        pst = conn.prepareStatement(sql);
+        pst.setInt(1, 0);
+        pst.setString(2, name);
+        pst.setString(3, content);
+        pst.setDate(4, Date.valueOf(date));
+        pst.setInt(5, price);
+        pst.setInt(6, brandId);
+        i = pst.executeUpdate();
+    } catch (SQLException e) {
+        throw new RuntimeException(e);
+    } finally {
+        DBUtil.close(conn, pst, null);
+    }
+    if (i > 0) {
+        response.sendRedirect("/list");
+    }else{
+        request.setAttribute("msg","添加失败！");
+        request.getRequestDispatcher("/WEB-INF/msg.jsp").forward(request,response);
+    }
+}
+}
+```
+
+```java
+package utils;
+
+import java.sql.*;
+
+public class DBUtil {
+    private static final String url="jdbc:mysql:///carInfo?characterEncoding=utf8";
+    private static  final String user="root";
+    private static  final String pwd="root";
+static {
+    try {
+        Class.forName("com.mysql.jdbc.Driver");
+    } catch (ClassNotFoundException e) {
+        throw new RuntimeException(e);
+    }
+}
+
+public static Connection getConn() throws SQLException {
+    Connection conn = DriverManager.getConnection(url,user,pwd);
+    return conn;
+}
+
+//    public static ResultSet query(String sql,Object ...keys) throws SQLException {
+//        Connection conn = getConn();
+//        PreparedStatement pst = conn.prepareStatement(sql);
+//        for (int i = 0; i < keys.length; i++) {
+//            pst.setObject((i+1),keys[i]);
+//        }
+//        ResultSet rst = pst.executeQuery();
+//        return rst;
+//    }
+//    public static int update(String sql, Object ...keys) throws SQLException {
+//        Connection conn = getConn();
+//        PreparedStatement pst = conn.prepareStatement(sql);
+//        for (int i = 0; i < keys.length; i++) {
+//            pst.setObject((i+1),keys[i]);
+//        }
+//        int i = pst.executeUpdate();
+//        return i;
+//    }
+
+public static void close(Connection conn,PreparedStatement pst,ResultSet rst){
+    try {
+        if (rst != null){
+            rst.close();
+        }
+        if (pst != null) {
+            pst.close();
+        }
+        if (conn != null) {
+            conn.close();
+        }
+    } catch (SQLException e) {
+        throw new RuntimeException(e);
+    }
+}
+}
+```
+
+```jsp
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<%--
+  Created by IntelliJ IDEA.
+  User: Administrator
+  Date: 2023-06-04
+  Time: 20:18
+  To change this template use File | Settings | File Templates.
+--%>
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<html>
+<head>
+    <title>Title</title>
+</head>
+<body>
+  <form action="/save" method="post">
+    <table>
+      <tr>
+        <th>车辆名称</th>
+        <td><input type="text" name="name"></td>
+      </tr>
+      <tr>
+        <th>所属品牌</th>
+          <td>
+            <select name="brandId">
+              <option value="">请选择</option>
+                <c:forEach items="${list}" var="b">
+                  <option value="${b.brandId}">${b.brandName}</option>
+                </c:forEach>
+            </select>
+          </td>
+      </tr>
+      <tr>
+        <th>车辆简介</th>
+        <td><input type="text" name="content"></td>
+      </tr>
+      <tr>
+        <th>价格</th>
+        <td><input type="text" name="price"></td>
+      </tr>
+      <tr>
+        <th>录入时间</th>
+        <td><input type="date" name="ltime"></td>
+      </tr>
+      <tr>
+        <td><input type="submit"></td>
+      </tr>
+    </table>
+  </form>
+</body>
+</html>
+```
+
+```jsp
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<%--
+  Created by IntelliJ IDEA.
+  User: Administrator
+  Date: 2023-06-04
+  Time: 19:48
+  To change this template use File | Settings | File Templates.
+--%>
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<html>
+<head>
+    <title>Title</title>
+</head>
+<body>
+<a href="/add"><button>添加</button></a>
+<table border="1">
+    <tr>
+        <th>序号</th>
+        <th>车辆名称</th>
+        <th>车辆品牌</th>
+        <th>车辆简介</th>
+        <th>价格</th>
+        <th>录入时间</th>
+    </tr>
+    <c:forEach items="${list}" var="car">
+        <tr>
+            <td>${car.cid}</td>
+            <td>${car.cname}</td>
+            <td>${car.brandName}</td>
+            <td>${car.content}</td>
+            <td>${car.price}</td>
+            <td>${car.ltime}</td>
+        </tr>
+    </c:forEach>
+</table>
+</body>
+</html>
+```
+
+```jsp
+<%--
+  Created by IntelliJ IDEA.
+  User: Administrator
+  Date: 2023-06-04
+  Time: 20:58
+  To change this template use File | Settings | File Templates.
+--%>
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<html>
+<head>
+    <title>友情提示</title>
+</head>
+<body>
+  ${msg}
+<hr>
+<a href="/list">返回列表</a>
+</body>
+</html>
+```
+