SSM框架整合——書籍管理系統

CherriesOvO發表於2024-03-16

1、準備工作：

1.1、環境要求

IDEA
MySQL 5.7.19
Tomcat 9
Maven 3.6

1.2、資料庫設計

建立一個存放書籍資料的資料庫表：

CREATE DATABASE `ssmbuild`;

USE `ssmbuild`;

DROP TABLE IF EXISTS `books`;

CREATE TABLE `books` (
`bookID` INT(10) NOT NULL AUTO_INCREMENT COMMENT '書id',
`bookName` VARCHAR(100) NOT NULL COMMENT '書名',
`bookCounts` INT(11) NOT NULL COMMENT '數量',
`detail` VARCHAR(200) NOT NULL COMMENT '描述',
KEY `bookID` (`bookID`)
) ENGINE=INNODB DEFAULT CHARSET=utf8

INSERT  INTO `books`(`bookID`,`bookName`,`bookCounts`,`detail`)VALUES
(1,'Java',1,'從入門到放棄'),
(2,'MySQL',10,'從刪庫到跑路'),
(3,'Linux',5,'從進門到進牢');

1.3、基本專案環境搭建

1、新建一Maven專案！ssmbuild ，新增web的支援

2、匯入相關的pom依賴！

<dependencies>
   <!--Junit-->
   <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
       <version>4.12</version>
   </dependency>
   <!--資料庫驅動-->
   <dependency>
       <groupId>mysql</groupId>
       <artifactId>mysql-connector-java</artifactId>
       <version>5.1.47</version>
   </dependency>
   <!-- 資料庫連線池 -->
   <dependency>
       <groupId>com.mchange</groupId>
       <artifactId>c3p0</artifactId>
       <version>0.9.5.2</version>
   </dependency>

   <!--Servlet - JSP -->
   <dependency>
       <groupId>javax.servlet</groupId>
       <artifactId>servlet-api</artifactId>
       <version>2.5</version>
   </dependency>
   <dependency>
       <groupId>javax.servlet.jsp</groupId>
       <artifactId>jsp-api</artifactId>
       <version>2.2</version>
   </dependency>
   <dependency>
       <groupId>javax.servlet</groupId>
       <artifactId>jstl</artifactId>
       <version>1.2</version>
   </dependency>

   <!--Mybatis-->
   <dependency>
       <groupId>org.mybatis</groupId>
       <artifactId>mybatis</artifactId>
       <version>3.5.2</version>
   </dependency>
   <dependency>
       <groupId>org.mybatis</groupId>
       <artifactId>mybatis-spring</artifactId>
       <version>2.0.2</version>
   </dependency>

   <!--Spring-->
   <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-webmvc</artifactId>
       <version>5.1.9.RELEASE</version>
   </dependency>
   <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-jdbc</artifactId>
       <version>5.1.9.RELEASE</version>
   </dependency>
</dependencies>

3、Maven資源過濾設定

<build>
   <resources>
       <resource>
           <directory>src/main/java</directory>
           <includes>
               <include>**/*.properties</include>
               <include>**/*.xml</include>
           </includes>
           <filtering>false</filtering>
       </resource>
       <resource>
           <directory>src/main/resources</directory>
           <includes>
               <include>**/*.properties</include>
               <include>**/*.xml</include>
           </includes>
           <filtering>false</filtering>
       </resource>
   </resources>
</build>

4、建立基本結構和配置框架！

com.cherriesovo.pojo
com.cherriesovo.dao
com.cherriesovo.service
com.cherriesovo.controller
mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
       PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
       "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>

</configuration>

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd">

</beans>

2、SSM整合

2.1、Mybatis層

1、資料庫配置檔案 database.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=123456

2、IDEA關聯資料庫

3、編寫MyBatis的核心配置檔案

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<!--配置資料來源——spring去做-->
    <typeAliases>
        <package name="com.cherriesovo.pojo"/>
    </typeAliases>

    <mappers>
        <mapper resource="com/cherriesovo/dao/BookMapper.xml"/>
    </mappers>
</configuration>

4、編寫資料庫對應的實體類 com.cherriesovo.pojo.Books

package com.cherriesovo.pojo;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Books {
    private int bookID;
    private String bookName;
    private int bookCounts;
    private String detail;

}

5、編寫Dao層的 Mapper介面！

package com.cherriesovo.dao;

import com.cherriesovo.pojo.Books;
import org.apache.ibatis.annotations.Param;

import java.util.List;

public interface BookMapper {
    //增加一個Book
    int addBook(Books book);

    //根據id刪除一個Book
    int deleteBookById(@Param("bookID") int id);

    //更新Book
    int updateBook(Books books);

    //根據id查詢,返回一個Book
    Books queryBookById(@Param("bookID") int id);

    //查詢全部Book,返回list集合
    List<Books> queryAllBook();

    //按名字查詢Book
    Books queryBookByName(@Param("bookName") String bookName);
}

6、編寫介面對應的 BookMapper.xml 檔案。需要匯入MyBatis的包；

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.cherriesovo.dao.BookMapper">

    <!--增加一個Book-->
    <insert id="addBook" parameterType="Books">
      insert into ssmbuild.books(bookName,bookCounts,detail)
      values (#{bookName}, #{bookCounts}, #{detail})
   </insert>

    <!--根據id刪除一個Book-->
    <delete id="deleteBookById" parameterType="int">
      delete from ssmbuild.books where bookID=#{bookID}
   </delete>

    <!--更新Book-->
    <update id="updateBook" parameterType="Books">
      update ssmbuild.books
      set bookName = #{bookName},bookCounts = #{bookCounts},detail = #{detail}
      where bookID = #{bookID}
   </update>

    <!--根據id查詢,返回一個Book-->
    <select id="queryBookById" resultType="Books">
      select * from ssmbuild.books
      where bookID = #{bookID}
   </select>

    <!--查詢全部Book-->
    <select id="queryAllBook" resultType="Books">
      SELECT * from ssmbuild.books
   </select>

    <!--根據名字查詢,返回一個Book-->
    <select id="queryBookByName" resultType="Books">
      select * from ssmbuild.books
      where bookName = #{bookName}
   </select>

</mapper>

7、編寫Service層的介面和實現類

介面：

package com.cherriesovo.service;

import com.cherriesovo.pojo.Books;

import java.util.List;

//BookService:底下需要去實現,呼叫dao層
public interface BookService {
    //增加一個Book
    int addBook(Books book);
    //根據id刪除一個Book
    int deleteBookById(int id);
    //更新Book
    int updateBook(Books books);
    //根據id查詢,返回一個Book
    Books queryBookById(int id);
    //查詢全部Book,返回list集合
    List<Books> queryAllBook();
    //根據name查詢,返回一個Book
    Books queryBookByName(String bookName);
}

實現類：

package com.cherriesovo.service;

import com.cherriesovo.dao.BookMapper;
import com.cherriesovo.pojo.Books;
import java.util.List;

public class BookServiceImpl implements BookService {

    //service是呼叫dao層的操作，設定一個set介面，方便Spring管理
    private BookMapper bookMapper;

    public void setBookMapper(BookMapper bookMapper) {
        this.bookMapper = bookMapper;
    }

    public int addBook(Books book) {
        return bookMapper.addBook(book);
    }

    public int deleteBookById(int id) {
        return bookMapper.deleteBookById(id);
    }

    public int updateBook(Books books) {
        return bookMapper.updateBook(books);
    }

    public Books queryBookById(int id) {
        return bookMapper.queryBookById(id);
    }

    public List<Books> queryAllBook() {
        return bookMapper.queryAllBook();
    }

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

2.2、Spring層

1、配置Spring整合MyBatis，我們這裡資料來源使用c3p0連線池；

2、我們去編寫Spring整合Mybatis的相關的配置檔案；spring-dao.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       https://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 配置整合mybatis -->
    <!-- 1.關聯資料庫檔案 -->
    <context:property-placeholder location="classpath:database.properties"/>

    <!-- 2.資料庫連線池 -->
    <!--資料庫連線池
        dbcp 半自動化操作 不能自動連線
        c3p0 自動化操作（自動的載入配置檔案 並且設定到物件裡面）
    -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <!-- 配置連線池屬性 -->
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>

        <!-- c3p0連線池的私有屬性 -->
        <property name="maxPoolSize" value="30"/>
        <property name="minPoolSize" value="10"/>
        <!-- 關閉連線後不自動commit -->
        <property name="autoCommitOnClose" value="false"/>
        <!-- 獲取連線超時時間 -->
        <property name="checkoutTimeout" value="10000"/>
        <!-- 當獲取連線失敗重試次數 -->
        <property name="acquireRetryAttempts" value="2"/>
    </bean>

    <!-- 3.配置SqlSessionFactory物件 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入資料庫連線池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 配置MyBaties全域性配置檔案:mybatis-config.xml -->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    </bean>

    <!-- 4.配置掃描Dao介面包，動態實現Dao介面注入到spring容器中 -->
    <!--解釋 ：https://www.cnblogs.com/jpfss/p/7799806.html-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 注入sqlSessionFactory -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!-- 給出需要掃描Dao介面包 -->
        <property name="basePackage" value="com.cherriesovo.dao"/>
    </bean>

</beans>

3、Spring整合service層——spring-service.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans.xsd
   http://www.springframework.org/schema/context
   http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 掃描service相關的bean -->
    <context:component-scan base-package="com.cherriesovo.service" />

    <!--BookServiceImpl注入到IOC容器中-->
    <bean id="BookServiceImpl" class="com.cherriesovo.service.BookServiceImpl">
        <property name="bookMapper" ref="bookMapper"/>
    </bean>

    <!-- 配置事務管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 注入資料庫連線池 -->
        <property name="dataSource" ref="dataSource" />
    </bean>

</beans>

2.3、SpringMVC層

1、web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">

    <!--DispatcherServlet-->
    <servlet>
        <servlet-name>DispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <!--一定要注意:我們這裡載入的是總的配置檔案，之前被這裡坑了！-->
            <param-value>classpath:applicationContext.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>DispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!--encodingFilter-->
    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>
            org.springframework.web.filter.CharacterEncodingFilter
        </filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>utf-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!--Session過期時間-->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>

</web-app>

2、spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans.xsd
   http://www.springframework.org/schema/context
   http://www.springframework.org/schema/context/spring-context.xsd
   http://www.springframework.org/schema/mvc
   https://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!-- 配置SpringMVC -->
    <!-- 1.開啟SpringMVC註解驅動 -->
    <mvc:annotation-driven />
    <!-- 2.靜態資源預設servlet配置-->
    <mvc:default-servlet-handler/>

    <!-- 3.配置jsp 顯示ViewResolver檢視解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>

    <!-- 4.掃描web相關的bean -->
    <context:component-scan base-package="com.cherriesovo.controller" />

</beans>

3、Spring配置整合檔案，applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd">

    <import resource="spring-dao.xml"/>
    <import resource="spring-service.xml"/>
    <import resource="spring-mvc.xml"/>

</beans>

3、Controller 和檢視層

3.1、BookController 類編寫，方法一：查詢全部書籍

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

   @Autowired
   @Qualifier("BookServiceImpl")
   private BookService bookService;

   //查詢所有書籍並返回書籍展示頁
    @RequestMapping("/allBook")
    public String list(Model model) {
        List<Books> list = bookService.queryAllBook();  //呼叫查詢書籍方法
        model.addAttribute("list", list);
        return "allBook";
    }
}

3.2、編寫首頁 index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE HTML>
<html>
<head>
  <title>首頁</title>
  <style type="text/css">
    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: 4px;
    }
  </style>
</head>
<body>

<h3>
  <a href="${pageContext.request.contextPath}/book/allBook">點選進入列表頁</a>
</h3>
</body>
</html>

3.3、書籍列表頁面 allbook.jsp

<%--
  Created by IntelliJ IDEA.
  User: CherriesOvO
  Date: 2024/3/14
  Time: 10:06
  To change this template use File | Settings | File Templates.
--%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>書籍列表</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>

<%--使用Bootstrap樣式--%>
<div class="container">

    <div class="row clearfix">
        <div class="col-md-12 column">      <!--將螢幕分為12份-->
            <div class="page-header">
                <h1>
                    <small>書籍列表 —— 顯示所有書籍</small>
                </h1>
            </div>
        </div>
    </div>

    <div class="row">
        <div class="col-md-4 column">
            <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook">新增</a>
            <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook">顯示全部</a>
        </div>
        <div class="col-md-4 column">
        <div class="col-md-4 column">
            <form class="form-inline" action="${pageContext.request.contextPath}/book/queryBook" method="post" style="float: right;width: 300px;">
                <span style="color: red;font-weight: bold">${error}</span>
                <input type="text" name="queryBookName" class="form-control" placeholder="請輸入要查詢的名稱">
                <input type="submit" value="提交" class="btn btn-primary">
            </form>
        </div>
    </div>

<%--書籍展示--%>
    <div class="row clearfix">
        <div class="col-md-12 column">
            <table class="table table-hover table-striped">
                <thead>
                <tr>
                    <th>書籍編號</th>
                    <th>書籍名字</th>
                    <th>書籍數量</th>
                    <th>書籍詳情</th>
                    <th>操作</th>
                </tr>
                </thead>
<%--書籍需要從資料庫裡面查詢出來,從queryAllBook()方法返回的list中遍歷出來:froeach--%>
                <tbody>
                <%--從item中遍歷,每一項稱為book,用${requestScope.get()取出資料--%>
                <c:forEach var="book" items="${requestScope.get('list')}">
                    <tr>
                        <td>${book.getBookID()}</td>
                        <td>${book.getBookName()}</td>
                        <td>${book.getBookCounts()}</td>
                        <td>${book.getDetail()}</td>
                        <td>
                            <a href="${pageContext.request.contextPath}/book/toUpdateBook?id=${book.getBookID()}">更改</a> |
                            <a href="${pageContext.request.contextPath}/book/del/${book.getBookID()}">刪除</a>
                        </td>
                    </tr>
                </c:forEach>
                </tbody>
            </table>
        </div>
    </div>
</div>

3.4、BookController 類編寫，方法二：新增書籍

//跳轉新增書籍頁面
    @RequestMapping("/toAddBook")
    public String toAddPaper() {
        return "addBook";
    }

    // 新增書籍頁面
    @RequestMapping("/addBook")
    public String addPaper(Books books) {
        System.out.println(books);
        bookService.addBook(books);
        return "redirect:/book/allBook";
    }

3.5、新增書籍頁面：addBook.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>
<head>
    <title>新增書籍</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">

    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>新增書籍</small>
                </h1>
            </div>
        </div>
    </div>
    <form action="${pageContext.request.contextPath}/book/addBook" method="post">
        書籍名稱：<input type="text" name="bookName"><br><br><br>
        書籍數量：<input type="text" name="bookCounts"><br><br><br>
        書籍詳情：<input type="text" name="detail"><br><br><br>
        <input type="submit" value="新增">
    </form>

</div>

3.6、BookController 類編寫，方法三：修改書籍

//修改書籍
    @RequestMapping("/toUpdateBook")
    public String toUpdateBook(Model model, int id) {
        Books books = bookService.queryBookById(id);
        System.out.println(books);
        model.addAttribute("book",books );  //將查到的書籍的資料帶到前端
        return "updateBook";
    }

    @RequestMapping("/updateBook")
    public String updateBook(Model model, Books book) {     //Books用於接收前端的book
        System.out.println(book);
        bookService.updateBook(book);
        Books books = bookService.queryBookById(book.getBookID());  //調業務層去修改
        model.addAttribute("books", books); //將修改後的書籍資料帶到前端
        return "redirect:/book/allBook";
    }

3.7、修改書籍頁面 updateBook.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>修改資訊</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">

    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>修改資訊</small>
                </h1>
            </div>
        </div>
    </div>

    <form action="${pageContext.request.contextPath}/book/updateBook" method="post">
        <!--book的資料已經被帶到了前端,使用value設定預設值展示要修改書籍的資料-->
        <%--配置隱藏域,呼叫book物件的getBookID()方法來獲取書籍的 ID，並將其作為隱藏欄位的值,提交表單時傳遞--%>
        <input type="hidden" name="bookID" value="${book.getBookID()}"/>
        書籍名稱：<input type="text" name="bookName" value="${book.getBookName()}"/>
        書籍數量：<input type="text" name="bookCounts" value="${book.getBookCounts()}"/>
        書籍詳情：<input type="text" name="detail" value="${book.getDetail() }"/>
        <input type="submit" value="提交"/>
    </form>

</div>

3.8、BookController 類編寫，方法四：刪除書籍

@RequestMapping("/del/{bookId}")
public String deleteBook(@PathVariable("bookId") int id) {
   bookService.deleteBookById(id);
   return "redirect:/book/allBook";
}

<a href="${pageContext.request.contextPath}/book/del/${book.getBookID()}">刪除</a>

3.9、BookController 類編寫，方法五：查詢書籍

//查詢書籍
    @RequestMapping("/queryBook")    
    public String queryBook(String queryBookName,Model model) {
        Books books = bookService.queryBookByName(queryBookName);
        //建立一個新的列表，將查詢出來的資料放到該列表
        List<Books> list = new ArrayList<Books>();
        list.add(books);
        if(books==null){
            list = bookService.queryAllBook();
            model.addAttribute("error","未查到");
        }

        model.addAttribute("list", list);
        return "allBook";
    }

4.0、查詢書籍前端

<div class="col-md-4 column">
            <form class="form-inline" action="${pageContext.request.contextPath}/book/queryBook" method="post" style="float: right;width: 300px;">
                <span style="color: red;font-weight: bold">${error}</span>
                <input type="text" name="queryBookName" class="form-control" placeholder="請輸入要查詢的名稱">
                <input type="submit" value="提交" class="btn btn-primary">
            </form>
</div>

最後配置Tomcat，進行執行！

到目前為止，這個SSM專案整合完畢，可以直接執行進行測試！專案結構圖如下：

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2020-12-19
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2021-11-28
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