3、springboot起步练习

1. Springboot简单上手视频

链接：https://pan.baidu.com/s/1Wl0_7VECqeq5oO5Ems20Og
提取码：gjdc

起步练习

Book类

package com.springboot.quickstrat.entity;

public class Book {
    private Integer id;
    private String name;
    private Double price;

    public Book(Integer id, String name, Double price) {
        this.id = id;
        this.name = name;
        this.price = price;
    }

    public Integer getId() {
        return id;
    }

    public String getName() {
        return name;
    }

    public Double getPrice() {
        return price;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public void setName(String name) {
        this.name = name;
    }

    public void setPrice(Double price) {
        this.price = price;
    }

    @Override
    public String toString() {
        return "Book{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", price=" + price +
                '}';
    }
}

BookDAO类

package com.springboot.quickstrat.dao;

import com.springboot.quickstrat.entity.Book;
import org.springframework.stereotype.Component;
import sun.swing.BakedArrayList;

import java.util.ArrayList;
import java.util.List;

/**
 * 图书的DAO类
 */
@Component
public class BookDAO {
    public ListgetBooks() {
        List books = new ArrayList<>();
        books.add(new Book(1, "spring boot", 88.8));
        books.add(new Book(2, "spring ", 88.8));
        books.add(new Book(3, "spring boot", 88.8));
        return books;
    }
}

BookController类

package com.springboot.quickstrat.controller;

import com.springboot.quickstrat.dao.BookDAO;
import com.springboot.quickstrat.entity.Book;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import java.util.List;

@RestController
public class BookController {
    @Resource
    private BookDAO bookDAO;
    @RequestMapping(value="/books" ,method= RequestMethod.GET)
    public List getBooks(){
        return bookDAO.getBooks();
    }
}

运行结果：

image.png