基于RESTful页面数据交互（后台接口开发）

@RestController
@RequestMapping("/books")
public class BookController {


    @PostMapping
    public String save(@RequestBody Book book){
        System.out.println("book save ==> " + book);
        return "{'module':'book save success'}"
        return null;
    }

    @GetMapping
    public List<Book> getAll(){
        List<Book> bookList = new ArrayList<Book>();

        Book book1 = new Book();
        book1.setType("计算机");
        book1.setName("SpringMVc入门教程");
        book1.setDescription("小试牛刀");
        bookList.add(book1);

        Book book2 = new Book();
        book2.setType("计算机");
        book2.setName("SpringMvc实战教程");
        book2.setDescription("一代宗师");
        bookList.add(book2);

        return bookList;
    }
}