SSM框架整合项目实战-业务实现

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SSM框架整合项目实战-业务实现

本文延续上篇: SSM框架整合项目实战-框架搭建

1. 查询书籍

1. Controller

新增一个接口用于查询数据

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package zone.yiqing.controller;

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 zone.yiqing.pojo.Books;
import zone.yiqing.service.BookService;

import java.util.List;

/**
 * @Author Yiqing Zhang
 * @Date 2020-11-12 1:28 p.m.
 * @Version 1.0
 */
@Controller
@RequestMapping("/book")
public class BookController {
    // controller调service层
    @Autowired
    @Qualifier("BookServiceImpl")
    private BookService bookService;

    // 查询全部的书籍, 并且返回到一个书籍展示页面
    @RequestMapping("/allBook")
    public String list(Model model){
        List<Books> list = bookService.queryAllBook();
        model.addAttribute("list",list);
        return "allBook";
    }
}

2. 创建查询页面

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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>书籍展示</title>
    <%--bootstrap--%>
    <!-- 最新版本的 Bootstrap 核心 CSS 文件 -->
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css"
          integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">

</head>
<body>
<div class="container">
    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>书籍列表 ------ 显示所有书籍</small>
                </h1>
            </div>
        </div>
    </div>

    <div class="row clearfix">
        <div class="col-md-12 column">
            <table class="table table-hover table-striped">
                <thead>
                <tr>
                    <th>书籍编号</th>
                    <th>书籍名称</th>
                    <th>书籍数量</th>
                    <th>书籍详情</th>
                </tr>
                </thead>
                <%--书籍从数据库中取出,遍历--%>
                <tbody>
                    <c:forEach var="book" items="${list}">
                        <tr>
                            <td>${book.bookID}</td>
                            <td>${book.bookName}</td>
                            <td>${book.bookCounts}</td>
                            <td>${book.detail}</td>
                        </tr>
                    </c:forEach>
                </tbody>
            </table>
        </div>
    </div>
</div>
</body>
</html>

3. 首页

首页新增调转

为了项目发布之后也能稳定运行:取绝对地址

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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
  <head>
    <title>首页</title>
    <style>
      a{
        text-decoration: none;
        color:black;
        font-size: 18px;
      }
      h3{
        width:180px;
        height: 38px;
        margin: 100px auto;
        text-align: center;
        line-height: 38px;
        background: deepskyblue;
        border-radius: 5px;
      }
    </style>
  </head>
  <body>
  <h3>
    <a href="${pageContext.request.contextPath}/book/allBook">进入书籍页面 </a>
  </h3>
  </body>
</html>

页面效果

image-20201113105530777

2. 添加书籍

1. Controller

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// 跳转到增加书籍页面
@RequestMapping("/toAddBook")
public String toAddPage() {
  return "addBook";
}

// 添加书籍的请求
@RequestMapping("/addBook")
public String addBook(Books books) {
  System.out.println("add book" + books);
  bookService.addBook(books);
  return "redirect:/book/allBook"; //重定向到@RequestMapping("/allBook")
}

2. 修改书籍展示页面

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<div class="row">
  <div class="col-md-4 column">
    <%--toAddBook--%>
    <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook">新增书籍</a>
  </div>
</div>

3. 新建添加书籍页面 addBook.jsp

  • 注意表单的name要和实体类的字段名一致
  • 如果字段为空上传会报错,所以在表单中添加required属性
  • 表单label的for是为了点击label跳转到input框的
  • 表单的action地址注意写绝对地址
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<%--
  Created by IntelliJ IDEA.
  User: Yiqing
  Date: 2020-11-13
  Time: 11:01 a.m.
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>新增书籍</title>
    <%--bootstrap--%>
    <!-- 最新版本的 Bootstrap 核心 CSS 文件 -->
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css"
          integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">

</head>
<body>
    <div class="container">
        <div class="row clearfix">
            <div class="col-md-12 column">
                <div class="page-header">
                    <h1>
                        <small>新增书籍</small>
                    </h1>
                </div>
            </div>
        </div>

        <form action="${pageContext.request.contextPath}/book/addBook" method="post">
            <div class="form-group">
                <label for="bkname">书籍名称:</label>
                <input type="text" name="bookName" class="form-control" id="bkname" required>
            </div>
            <div class="form-group">
                <label for="bknumber">书籍数量:</label>
                <input type="text" name="bookCounts" class="form-control" id="bknumber" required>
            </div>
            <div class="form-group">
                <label for="bkdesc">书籍描述:</label>
                <input type="text" name="detail" class="form-control" id="bkdesc" required>
            </div>
            <div class="form-group">
                <input type="submit" class="form-control" value="添加">
            </div>
        </form>
    </div>
</body>
</html>

3. 修改书籍

1. Controller

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// 跳转到修改页面
@RequestMapping("/toUpdateBook")
public String toUpdatePage(int id, Model model) {
  Books books = bookService.queryBookById(id);
  model.addAttribute("QBook",books);
  return "updatePage";
}

// 修改书籍
@RequestMapping("/updateBook")
public String updateBook(Books books){
  System.out.println("updateBook=>"+books);
  bookService.updateBook(books);
  return  "redirect:/book/allBook";
}

2. 修改书籍展示页面

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<table class="table table-hover table-striped">
                    <thead>
                    <tr>
                        <th>书籍编号</th>
                        <th>书籍名称</th>
                        <th>书籍数量</th>
                        <th>书籍详情</th>
                        <th>操作</th>
                    </tr>
                    </thead>
                    <%--书籍从数据库中取出,遍历--%>
                    <tbody>
                    <c:forEach var="book" items="${list}">
                        <tr>
                            <td>${book.bookID}</td>
                            <td>${book.bookName}</td>
                            <td>${book.bookCounts}</td>
                            <td>${book.detail}</td>
                            <td>
                                <a href="${pageContext.request.contextPath}/book/toUpdateBook?id=${book.bookID}">修改</a> &nbsp;
                                <a href="">删除</a>
                            </td>
                        </tr>
                    </c:forEach>
                    </tbody>
                </table>

3. 新建修改书籍页面

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<%--
  Created by IntelliJ IDEA.
  User: Yiqing
  Date: 2020-11-13
  Time: 11:37 a.m.
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>修改书籍</title>
    <%--bootstrap--%>
    <!-- 最新版本的 Bootstrap 核心 CSS 文件 -->
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css"
          integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">

</head>
<body>
<div class="container">
    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>修改书籍</small>
                </h1>
            </div>
        </div>
    </div>

    <form action="${pageContext.request.contextPath}/book/updateBook" method="post">
        <%--提交要上传id,否则无法查找修改,前端传递隐藏域--%>
        <input type="hidden" name="bookID" value="${QBook.bookID}">
        <div class="form-group">
            <label for="bkname">书籍名称:</label>
            <input type="text" name="bookName" class="form-control" id="bkname" value="${QBook.bookName}" required>
        </div>
        <div class="form-group">
            <label for="bknumber">书籍数量:</label>
            <input type="text" name="bookCounts" class="form-control" id="bknumber" value="${QBook.bookCounts}"
                   required>
        </div>
        <div class="form-group">
            <label for="bkdesc">书籍描述:</label>
            <input type="text" name="detail" class="form-control" id="bkdesc" value="${QBook.detail}" required>
        </div>
        <div class="form-group">
            <input type="submit" class="form-control" value="添加">
        </div>
    </form>
</div>
</body>
</html>

4. 删除书籍

1. Controller

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// 删除书籍
@RequestMapping("/deleteBook/{bookID}")
public String deleteBook(@PathVariable("bookID") int id) {
  bookService.deleteBookById(id);
  return "redirect:/book/allBook";
}

2. 修改书籍展示页面

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<a href="${pageContext.request.contextPath}/book/deleteBook/${book.bookID}">删除</a>

5. 配置日志和事务

1. 开启日志

在mybatis的配置中添加setting

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<settings>
     <setting name="logImpl" value="STDOUT_LOGGING"/>
 </settings>

2. 配置事务切面织入

spring-service.xml

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<!--结合AOP实现事务的织入-->
<!--配置事务通知-->
<tx:advice id="txADVICE" transaction-manager="transactionManager">
    <!--给哪些方法配置事务-->
    <!--配置事务的传播特性-->
    <tx:attributes>
        <tx:method name="add" propagation="REQUIRED"/>
        <tx:method name="delete" propagation="REQUIRED"/>
        <tx:method name="update" propagation="REQUIRED"/>
        <tx:method name="query" read-only="true"/>
        <!--<tx:method name="*" propagation="REQUIRED"/>-->
    </tx:attributes>
</tx:advice>
<!--配置事务切入-->
<aop:config>
    <!--切入点-->
    <aop:pointcut id="txPointCut" expression="execution(* zone.yiqing.dao.*.*(..))"/>
    <!--切入方法-->
    <aop:advisor advice-ref="txADVICE" pointcut-ref="txPointCut"/>
</aop:config>

6. 搜索功能

1. Controller

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// 查询书籍
@RequestMapping("/queryBook")
public String queryBook(String queryBookName, Model model){
  Books books = bookService.queryBookByName(queryBookName);

  List<Books> list = new ArrayList<>();
  if(books == null){
    list = bookService.queryAllBook();
    model.addAttribute("error","未查到");
  }else{
    list.add(books);
  }
  model.addAttribute("list",list);
  return "allBook";
}

2. 页面新增查询表单

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<div class="col-md-8 column">
  <%--查询书籍--%>
  <form action="${pageContext.request.contextPath}/book/queryBook" method="post" style="float: right"
        class="form-inline">
    <span style="color: #ff0000; font-weight: bold">${error}</span>
    <input type="text" placeholder="请输入要查询的书籍名称" class="form-control" name="queryBookName">
    <input type="submit" value="查询" class="btn btn-primary">
  </form>
</div>

3. dao层

3.1 interface

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// 搜索
Books queryBookByName(@Param("bookName") String bookName);

3.2 mapper.xml

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<select id="queryBookByName" resultType="Books">
  select * from books where bookName=#{bookName};
</select>

4. service层

4.1 interface

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// 搜索
Books queryBookByName(String bookName);

4.2 实现类impl

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@Override
public Books queryBookByName(String bookName) {
  return bookMapper.queryBookByName(bookName);
}

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