ssmbiuld整合-查询书籍功能

关于@Autowired @Qualifier的用法：

BookController:

package com.kakafa.controller;

import com.kakafa.pojo.Books;
import com.kakafa.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import java.util.List;

@Controller
@RequestMapping("/book")
public class BookController {

    @Autowired  //在属性中使用 @Autowired 注解来除去 setter 方法
    @Qualifier("bookServiceImpl")
    private BookService bookService;

    //查询所有书籍
    @RequestMapping("/allbook")
    public String list(Model model){
        List<Books> books=bookService.queryAllBook();
        model.addAttribute("list",books);
        return "allBook";
    }



}

index.jsp:

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
  <head>
    <title>首页</title>
  </head>
  <body>
 <h3>
   <a href="${pageContext.request.contextPath}/book/allbook">进入书籍展示页面</a>
 </h3>
  </body>
</html>

allBook.jsp:

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>书籍展示</title>
</head>
<body>
<h1>书籍展示</h1>

<table>
    <tr>
        <th>书籍编号</th>
        <th>书籍数量</th>
        <th>书籍名称</th>
        <th>书籍详情</th>
    </tr>

       <c:forEach var="book" items="${list}">
            <tr>
                <td>${book.bookID}</td>
                <td>${book.bookCounts}</td>
                <td>${book.bookName}</td>
                <td>${book.detail}</td>
            </tr>
       </c:forEach>

</table>
</body>
</html>

报错：
Could not open ServletContext resource [/database.properties]

spring-mapper.xml修改如下：

 <!--1.关联数据库文件-->
    <context:property-placeholder location="classpath:database.properties"/>

posted @ 2022-01-18 09:26 卡卡发阅读(34) 评论(0) 收藏举报

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ssmbiuld整合-查询书籍功能

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