项目工具

  • IDEA 2021.1
  • Mybatis 3.5.2
  • maven 3.6.1
  • Tomcat 8.0
  • spring-webmvc 5.1.9
  • 更多请见下方核心配置

项目数据库设计

表 主键
admin admin_id
class_info class_id
book_info book_id
lend_list ser_num
reader_card reader_id
reader_info reader_id

admin表

名字 数据类型
admin_id bigint
password varchar(15)
username varchar(15)

class_info 表

名字 数据类型
class_id int
class_name varchar(15)

book_info表

名字 数据类型
book_id bigint(auto increment)
name varchar(20)
author varchar(15)
publish varchar(20)
ISBN varchar(15)
introduction text
language varchar(4)
price decimal(10,2)
pub_date date
class_id int
number int

lend_list表

名字 数据类型
ser_num bigint
book_id bigint
reader_id bigint
lend_date date
back_date date

reader_card表

名字 数据类型
reader_id bigint
username varchar(15)
password varchar(15)

reader_info表

名字 数据类型
reader_id bigint(auto increment)
name varchar(10)
sex varchar(2)
birth date
address varchar(50)
phone varchar(15)

项目结构

  • Java
    • controller
    • Mapper
    • pojo
    • service
  • resources
    • applicationContext.xml
    • database.properties
    • mybatis-config.xml
    • spring-dao.xml
    • spring-mvc.xml
    • spring-service.xml
  • web
    • css
    • fonts
    • js
    • images
    • WEB-INF

注解：web中的css、fonts、js文件为BootStrap文件，用于前端。

项目结构原理

一张图说清楚：

图片源自狂神说微信公众号

核心配置

一些题外话

在学Spring的时候，有人说这是配置地狱，起初我还不以为意，直到亲手做项目，才感受到什么叫不听老人言，吃亏在眼前。

为了让自己以后不再吃配置的苦，我将把配置源文件的代码放在这里。

发车了

pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
<!--Your project-->
    <groupId>com.hu</groupId>
    <artifactId>ssm_build_book</artifactId>
    <version>1.0-SNAPSHOT</version>
    <dependencies>
        <!--Junit-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <!--数据库驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>
        <!-- 数据库连接池 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.3</version>
        </dependency>

        <!--Servlet - JSP -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
        </dependency>
        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.10</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>
    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>
    <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>
</project>

spring-service.xml

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<?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">

    <!--scan service-->
    <context:component-scan base-package="com.hu.service"/>

    <!--service class added into Spring-->
    <bean id="BooksServicelmpl" class="com.hu.service.BooksServicelmpl">
        <property name="bookMapper" ref="bookMapper"/>
    </bean>

    <bean id="adminServicelmpl" class="com.hu.service.adminServicelmpl">
        <property name="adminMapper" ref="adminMapper"/>
    </bean>

    <!--Declare thing configuration-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!--add data source-->
        <property name="dataSource" ref="dataSource"/>
    </bean>

<!--aop-->

</beans>

spring-mvc.xml

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<?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">
<!--1.note driver-->
    <mvc:annotation-driven/>
    <!--2.static resource filter-->
    <mvc:default-servlet-handler/>
    <!--3.scan controller-->
    <context:component-scan base-package="com.hu.controller"/>
    <!--view-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

</beans>

spring-dao.xml

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<?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">
<!--1.connect database file-->
<context:property-placeholder location="classpath:database.properties"/>

<!--2.datasource-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
    <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 private property -->
    <property name="maxPoolSize" value="30"/>
    <property name="minPoolSize" value="10"/>
    <!-- close connection not auto commit -->
    <property name="autoCommitOnClose" value="false"/>
    <!-- get connection over time -->
    <property name="checkoutTimeout" value="10000"/>
    <!-- when connection failure restart counts -->
    <property name="acquireRetryAttempts" value="2"/>

</bean>
    <!--3.sqlSessionFactory-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource"/>
    <!--bind mybatis equipment file-->
    <property name="configLocation" value="classpath:mybatis-config.xml"/>
</bean>

    <!--equip dao interface scan-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--add sqlSessionFactory-->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!--scan-->
        <property name="basePackage" value="com.hu.Mapper"/>
    </bean>
</beans>

mybatis-config.xml

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<?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>

<typeAliases>
    <package name="com.hu.pojo"/>
</typeAliases>

<mappers>
    <mapper class="com.hu.Mapper.bookMapper"/>
    <mapper class="com.hu.Mapper.adminMapper"/>
</mappers>

</configuration>

database.properties

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jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=false&useUnicode=true&characterEncoding=utf8&serverTimezone=Asia/Shanghai
jdbc.username=root
jdbc.password=100122200

applicationContext.xml

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<?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>

web.xml

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<?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">
    <!--DisapatchServlet-->
    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:applicationContext.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!--complexcode filter-->
    <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-->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>
</web-app>

index.jsp

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<%--
  Created by IntelliJ IDEA.
  User: 10251
  Date: 2021/6/11
  Time: 10:30
  To change this template use File | Settings | File Templates.
--%>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>邂逅海棠</title>
    <meta name="viewport" content="width=device-width,initial-scale=1">
    <title>自由而无用</title>
    <link rel="stylesheet" href="css/bootstrap.min.css">
    <style>
        body{
            padding-top: 50px;
        }
        .start{
            padding:40px 15px;
            text-align: center;
        }
        .xh{
            padding-left: 415px;
            margin-top: 80px;
        }
    </style>
</head>
<body>
<nav class="navbar navbar-default navbar-fixed-top" role="navigation">
    <div class="container">
        <div class="navbar-header">
            <a href="#" class="navbar-brand">自由而无用</a>
        </div>
        <div id="navbar" class="collapse navbar-collapse">
            <ul class="nav navbar-nav">
                <li class="active"><a href="#">首页</a></li>
                <li><a href="${pageContext.request.contextPath}/book/login">图书管理系统</a></li>
                <li><a href="${pageContext.request.contextPath}/book/about">关于我</a></li>
            </ul>
        </div>
    </div>
</nav>
<div class=" container xh">
    <img src="images/计算机学院院徽.png" alt="..." class="img-circle">
</div>
<div class="container ">
    <div class="start">
        <h1 id="note1" class="text-primary">唯实惟新 至诚致志</h1>
        <p class="lead">欢迎来到自由而无用</p>
    </div>
</div>
</body>
</html>

一套示例代码(实现用户登录功能)

controller层：

  • adminController.class
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package com.hu.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping("/book")
public class Book_manage {
    @RequestMapping("/book_manage")
    public String get_Book_manage(){

        return "book_manage";
    }
}
  • loginController.class
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package com.hu.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping("/book")
public class loginController {
    @RequestMapping("/login")
    public String getAbout(){

        return "login";
    }
}

Mapper层：

  • adminMapper.class
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package com.hu.Mapper;

import com.hu.pojo.admin;
import com.hu.pojo.books;
import java.util.List;
public interface adminMapper {

    int addadmin(admin admin);
    int deleteadminById(int id);
    int updateadmin(admin admin);
    admin queryadminById(int id);
    List<admin> queryAlladmin();
}
  • adminMapper.xml
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<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.hu.Mapper.adminMapper">
<insert id="addadmin" parameterType="admin">
    insert into library.admin(admin_id,password,username) values(#{admin_id},#{password},#{username})
</insert>

    <delete id="deleteadminById" parameterType="int">
        delete
        from library.admin
        where admin_id = #{admin_id};
    </delete>

    <update id="updateadmin" parameterType="admin">
        update library.admin
        set admin_id = #{admin_id},password=#{password},username=#{username}
        where admin_id=#{admin_id}
    </update>

    <select id="queryadminById" parameterType="int" resultType="admin">
        select * from library.admin where admin_id = #{admin_id}
    </select>

    <select id="queryAlladmin" resultType="admin">
        select * from library.admin
    </select>
</mapper>

Service层：

  • adminService.class
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package com.hu.service;

import com.hu.pojo.admin;

import java.util.List;

public interface adminService {
    int addadmin(admin admin);
    int deleteadminById(int id);
    int updateadmin(admin admin);
    admin queryadminById(int id);
    List<admin> queryAlladmin();
    admin checkLogin(int admin_id,String password);

}
  • adminServicelmpl.class
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package com.hu.service;

import com.hu.Mapper.adminMapper;
import com.hu.Mapper.bookMapper;
import com.hu.pojo.admin;

import java.util.List;

public class adminServicelmpl implements adminService{

    private adminMapper adminMapper;
    public void setAdminMapper(adminMapper adminMapper){
        this.adminMapper = adminMapper;
    }
    @Override
    public int addadmin(admin admin) {
        return adminMapper.addadmin(admin);
    }

    @Override
    public int deleteadminById(int id) {
        return adminMapper.deleteadminById(id);
    }

    @Override
    public int updateadmin(admin admin) {
        return adminMapper.updateadmin(admin);
    }

    @Override
    public admin queryadminById(int id) {
        return adminMapper.queryadminById(id);
    }

    @Override
    public List<admin> queryAlladmin() {
        return adminMapper.queryAlladmin();
    }

    @Override
    public admin checkLogin(int admin_id, String password) {
        admin admin = adminMapper.queryadminById(admin_id);
        if(admin!=null&&admin.getPassword().equals(password)){
            return admin;
        }else{
            return null;
        }
    }
}

web层：

login.jsp

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<%--
  Created by IntelliJ IDEA.
  User: 10251
  Date: 2021/6/9
  Time: 22:43
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>图书管理系统</title>
    <link rel="stylesheet" href="../css/bootstrap.min.css">
    <script src="../js/JQuery.js"></script>
    <style>
        .form-control{
            width: 443px;
        }
        .btn-success{
            width: 150px;
        }
        .btn-warning{
            width: 150px;
        }
        .form-group{
            margin: 5px;
            padding: 10px;
            padding-left: 375px;
        }
        .form-horizontal{
            padding-top: 180px;
        }

    </style>
</head>
<body>
<nav class="navbar navbar-default navbar-fixed-top" role="navigation">
    <div class="container">
        <div class="navbar-header">
            <a href="#" class="navbar-brand">自由而无用</a>
        </div>
        <div id="navbar" class="collapse navbar-collapse">
            <ul class="nav navbar-nav">
                <li><a href="${pageContext.request.contextPath}">首页</a></li>
                <li class="active"><a href="#">图书管理系统</a></li>
                <li><a href="${pageContext.request.contextPath}/book/about">关于我</a></li>
            </ul>
        </div>
    </div>
</nav>

<form action="${pageContext.request.contextPath}/book/book_manage_2" method="post" class="form-horizontal " role="form">
    <div class="form-group">
        <label class="col-sm-2 control-label">账号：</label>
        <div class="col-sm-10">
            <input id="zh" type="text" class="form-control" placeholder="账号" name="admin_id">
        </div>
    </div>
    <div class="form-group">
        <label id="pwd" class="col-sm-2 control-label">密码：</label>
        <div class="col-sm-10">
            <input id="pwd_real" type="password" class="form-control" placeholder="密码" name="password">
        </div>
    </div>
    <div class="form-group">
        <div class="col-sm-offset-2 col-sm-10">
            <div class="checkbox">
                <label>
                    <input type="checkbox">记住密码
                </label>
            </div>
        </div>
    </div>
    <div class="form-group">
        <div  class="col-sm-offset-2 col-sm-2">
            <button id="login" type="submit" class="btn btn-success"> 登录 </button>
        </div>
        <div class=" col-sm-offset-5">
            <button id="forget" type="submit" class="btn btn-warning">忘记密码</button>
        </div>
    </div>
</form>
<script type="text/javascript">
    $("#login").click(function checkpwdAndzh(){
        var name = $("#zh").val();
        var pass = $("#pwd_real").val();
        if (name == "") {
            alert("用户名不能为空");
            return false;
        } else if (pass == "") {
            alert("密码不能为空");
            return false;
        } else {
            return true;
        }
    });
    var v =0;
    if((${v})=="-1")
        alert("密码或账号错误");

</script>
</body>
</html>