以下是一个简单的jsp应用servlet实现购物车的例子：

1. 创建一个名为`Product`的Java类，用来表示商品信息：

jsp应用servlet实现购物车实例，jsp应用servlet实现购物车实例 第1张

```java

public class Product {

private String id;

private String name;

private double price;

// 构造方法

public Product(String id, String name, double price) {

this.id = id;

this.name = name;

this.price = price;

}

// getter和setter方法

public String getId() {

return id;

}

public void setId(String id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public double getPrice() {

return price;

}

public void setPrice(double price) {

this.price = price;

}

}

```

2. 创建一个名为`CartServlet`的Servlet类，用来处理购物车相关的请求：

```java

import javax.servlet.*;

import javax.servlet.http.*;

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

public class CartServlet extends HttpServlet {

private List products = new ArrayList<>();

@Override

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

String action = request.getParameter("