# ssm整合：查詢書籍功能
###### tags: `ssm整合`

### 1.寫一個BookController

@Controller
@RequestMapping("/book")
public class BookController {
    //controller調 service層
    @Autowired
    @Qualifier("BookServiceImpl")
    private BookService bookService;
}

使用@Qualifier注入成功後，就能點選旁邊的綠點，跳到對應的bean

### 完整的BookController

@Controller
@RequestMapping("/book")
public class BookController {
    //controller調 service層
    @Autowired
    @Qualifier("BookServiceImpl")
    private BookService bookService;

    //查詢全部的書籍，並返回到一個書籍展示頁面
    @RequestMapping("/allBook")
    public String list(Model model){
        List<Books> list = bookService.queryAllBook();
        model.addAttribute("list",list);
        return "allBook";
    }
}