ssm整合实现图书管理系统【1】

最近把ssm框架基本上学习了一遍，这里以ssm框架为基础实现一些简单的图书管理系统，加深对ssm的理解。
一、环境要求：

• IDEA版本不限，本人用的2019.3.5 x64
• MySQL 8.0.22 winx64 （5.7版本以上的都可以）
• Tomcat 9
• Maven 3.6

如果想对系统有个比较好的理解，最好对MySQL数据库，spring，JavaWeb和Mybatis有一定的了解，以及简单的前端知识。
二：准备数据库
创建一个存放书籍的数据库表

CREATE DATABASE ssmbuild;

CREATE TABLE books(
bookID INT(10) NOT NULL AUTO_INCREMENT COMMENT '书id',
bookName VARCHAR(100) NOT NULL COMMENT '书名',
bookCount INT(11) NOT NULL COMMENT '数量',
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,'从入门到放弃'),
(2,'MySQL',10,'从删库到跑路'),
(3,'Linux',5,'从进门到坐牢');

数据表创建好了之后如下图所示

三：Maven和Web环境搭建
在idea里面新建一个Maven项目

名字叫做ssmbuild，当然这个名字直随便
完成上述操作后可以看到ssmbuild这个文件夹右下角有个蓝色的部分。
接下来添加一下web的支持，鼠标放在ssmbuild这个文件夹上面，鼠标右键选择如下图所示选项

进去后选择Web Application

可以看到项目文件夹下面有个web文件夹，中间有个蓝色圆点。
配置pom.xml

<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>4.0.0modelVersion>
    <groupId>org.examplegroupId>
    <artifactId>wb_ssmbuildartifactId>
    <version>1.0-SNAPSHOTversion>

    <dependencies>
        <dependency>
            <groupId>junitgroupId>
            <artifactId>junitartifactId>
            <version>4.12version>
            <scope>testscope>
        dependency>
        <dependency>
            <groupId>mysqlgroupId>
            <artifactId>mysql-connector-javaartifactId>
            <version>8.0.22version>
        dependency>
        <dependency>
            <groupId>com.mchangegroupId>
            <artifactId>c3p0artifactId>
            <version>0.9.5.2version>
        dependency>
        <dependency>
            <groupId>javax.servletgroupId>
            <artifactId>servlet-apiartifactId>
            <version>2.5version>
        dependency>
        <dependency>
            <groupId>javax.servlet.jspgroupId>
            <artifactId>jsp-apiartifactId>
            <version>2.2version>
        dependency>
        <dependency>
            <groupId>javax.servletgroupId>
            <artifactId>jstlartifactId>
            <version>1.2version>
        dependency>
        <dependency>
            <groupId>org.mybatisgroupId>
            <artifactId>mybatisartifactId>
            <version>3.5.5version>
        dependency>
        <dependency>
            <groupId>org.mybatisgroupId>
            <artifactId>mybatis-springartifactId>
            <version>2.0.2version>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-webmvcartifactId>
            <version>5.1.9.RELEASEversion>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-jdbcartifactId>
            <version>5.1.9.RELEASEversion>
        dependency>
        <dependency>
            <groupId>org.aspectjgroupId>
            <artifactId>aspectjweaverartifactId>
            <version>1.8.13version>
        dependency>
        <dependency>
            <groupId>org.projectlombokgroupId>
            <artifactId>lombokartifactId>
            <version>1.18.10version>
        dependency>
    dependencies>
    <build>
        <resources>
            <resource>
                <directory>src/main/javadirectory>
                <includes>
                    <include>**/*.propertiesinclude>
                    <include>**/*.xmlinclude>
                includes>
                <filtering>falsefiltering>
            resource>
            <resource>
                <directory>src/main/resourcesdirectory>
                <includes>
                    <include>**/*.propertiesinclude>
                    <include>**/*.xmlinclude>
                includes>
                <filtering>falsefiltering>
            resource>
        resources>
    build>
project>

接下来建立基本结构和配置框架，文件夹结构如下图所示：

在resources这个文件夹下面新建mybatis-config.xml，配置如下：

<configuration>
    <settings>
        <setting name="logImpl" value="STDOUT_LOGGING"/>
    settings>
    <typeAliases>
        <package name="com.wb.pojo"/>
    typeAliases>
    <mappers>
        <mapper class="com.wb.dao.BookMapper"/>
    mappers>
configuration>

在resources这个文件夹下面新建applicationContext.xml，配置如下：

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

Mybatis层编写:
在resources这个文件夹下面新建数据库配置文件database.properties，配置如下：

jdbc.driver = com.mysql.jdbc.Driver
jdbc.url = jdbc:mysql://localhost:3306/ssmbuild?serverTimezone=Asia/Shanghai&characterEncoding=utf8&autoReconnect=true&zeroDateTimeBehavior=convertToNull
jdbc.username = root
jdbc.password = root

上面分别是你自己的数据库基本设置，mysql8.0以上的按这个配置就可以，5.7和5.8的可以不加时区设置。

Idea关联数据库：

从这里进去设置选择mysql，步骤如下

关联好了之后可以看到刚才创建的数据库
编写数据库对应的实体类 com.wb.pojo.Books

package com.wb.pojo;
/**
 * 实体类
 */
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;
}

编写Dao层的 Mapper接口！com.wb.dao.BookMapper

package com.wb.dao;
import com.wb.pojo.Books;
import org.apache.ibatis.annotations.Param;
import java.util.List;
/**
 * 增删改查
 */
public interface BookMapper {
     
    int addBook(Books books);
    int deleteBookById(@Param("bookId") int id);
    int updateBook(Books books);
    Books queryBookById(@Param("bookId")int id);
    List<Books> queryAllBook();
    Books queryBookByName(@Param("bookName")String bookName);


}

编写接口对应的 Mapper.xml 文件。需要导入MyBatis的包；com.wb.dao.Mapper.xml

<mapper namespace="com.wb.dao.BookMapper">
    <insert id="addBook">
        insert into ssmbuild.books (bookName,bookCounts,detail)
        values (#{bookName},#{bookCounts},#{detail});
    insert>
    <delete id="deleteBookById" parameterType="int">
        delete from ssmbuild.books where bookID = #{bookId};
    delete>
    <update id="updateBook" parameterType="Books">
        update ssmbuild.books set bookName = #{bookName},bookCounts = #{bookCounts},detail = #{detail}
        where bookID = #{bookID};
    update>
    <select id="queryBookById" resultType="Books">
        select * from ssmbuild.books
        where bookID = #{bookId}
    select>
    <select id="queryAllBook" resultType="Books">
        select * from ssmbuild.books
    select>
    <select id="queryBookByName" resultType="Books">
        select * from ssmbuild.books where bookName = #{bookName}
    select>
mapper>

编写Service层的接口com.wb.servive.BookService

package com.wb.service;

import com.wb.pojo.Books;
import org.apache.ibatis.annotations.Param;
import java.util.List;
public interface BookService {
     
    int addBook(Books books);
    int deleteBookById(int id);
    int updateBook(Books books);
    Books queryBookById(int id);
    List<Books> queryAllBook();
    Books queryBookByName(String bookName);
}

编写Service层的实现类com.wb.servive.BookServiceImpl

package com.wb.service;
import com.wb.dao.BookMapper;
import com.wb.pojo.Books;
import java.util.List;

public class BookServiceImpl implements BookService {
     
    private BookMapper bookMapper;
    public void setBookMapper(BookMapper bookMapper){
     
        this.bookMapper = bookMapper;
    }
    public int addBook(Books books) {
     
        return bookMapper.addBook(books);
    }
    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);
    }
}

接下来配置spring层，刚才在ApplicationContext.xml里面已经引入了下面的文件。
我们去编写Spring整合Mybatis的相关的配置文件；resources文件夹下面spring-dao.xml

<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">

    <context:property-placeholder location="classpath:database.properties"/>
    <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}"/>
        <property name="maxPoolSize" value="30"/>
        <property name="minPoolSize" value="10"/>
        <property name="autoCommitOnClose" value="false"/>
        <property name="checkoutTimeout" value="10000"/>
        <property name="acquireRetryAttempts" value="2"/>
    bean>
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    bean>
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <property name="basePackage" value="com.wb.dao"/>
    bean>
beans>

Spring整合service层，在resources下新建spring-service.xml

<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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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
       http://www.springframework.org/schema/aop
       https://www.springframework.org/schema/aop/spring-aop.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd">

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

    <bean id="BookServiceImpl" class="com.wb.service.BookServiceImpl">
        <property name="bookMapper" ref="bookMapper"/>
    bean>
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    bean>
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="*" propagation="REQUIRED"/>
        tx:attributes>
    tx:advice>
    <aop:config>
        <aop:pointcut id="txPointCut" expression="execution(* com.wb.dao.*.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/>
    aop:config>
beans>

配置springMVC层的web.xml，在web->WEN-INF目录下有web.xml

<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">

    <servlet>
        <servlet-name>springmvcservlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
        <init-param>
            <param-name>contextConfigLocationparam-name>
            <param-value>classpath:ApplicationContext.xmlparam-value>
        init-param>
        <load-on-startup>1load-on-startup>
    servlet>
    <servlet-mapping>
        <servlet-name>springmvcservlet-name>
        <url-pattern>/url-pattern>
    servlet-mapping>
    <filter>
        <filter-name>encodingFilterfilter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
        <init-param>
            <param-name>encodingparam-name>
            <param-value>utf-8param-value>
        init-param>
    filter>
    <filter-mapping>
        <filter-name>encodingFilterfilter-name>
        <url-pattern>/*url-pattern>
    filter-mapping>
    <session-config>
        <session-timeout>15session-timeout>
    session-config>
web-app>

在resources下新建spring-mvc.xml

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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/mvc
       http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
    <mvc:annotation-driven/>
    <mvc:default-servlet-handler/>
    <context:component-scan base-package="com.wb.controller"/>
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    bean>
beans>

Controller 和 视图层编写
com.wb.controller

package com.wb.controller;


import com.wb.pojo.Books;
import com.wb.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.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;

import java.util.ArrayList;
import java.util.List;

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

    //跳转到增加书籍界面
    @RequestMapping("/toAddBook")
    public String toAddPaper(){
     
        return "addBook";
    }


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


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

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

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


    //查询书籍
    @RequestMapping("/queryBook")
    public String queryBook(String queryBookName,Model model){
     
        Books books = bookService.queryBookByName(queryBookName);
        List<Books> list = new ArrayList<>();
        list.add(books);
        if(books==null){
     
            list=bookService.queryAllBook();
            model.addAttribute("error","未查到");
        }
        model.addAttribute("list",list);
        return "allBook";
    }


}

编写首页 index.jsp,在web目录下

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
  <head>
    <title>首页title>
    <style>
      h3{
      
        width: 120px;
        height: 38px;
        margin: 100px auto;
        text-align: center;
        line-height: 38px;
        background: deepskyblue;
        border-radius: 5px;
      }
      a{
      
        text-decoration: none;
        color: black;
        font-size: 18px;
      }
    style>
  head>
  <body>
  <h3>
    <a href="${pageContext.request.contextPath}/book/allBook">书籍展示界面a>
  h3>
  body>
html>

书籍列表页面 allBook.jsp,放在web-->WEB-INF目录下面

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>书籍展示界面title>
    <link href="https://cdn.staticfile.org/twitter-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>书籍列表-----显示所有书籍列表small>
                h1>
            div>
        div>

        <div class="row">
            <div class="col-md-4 column">
                <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook">新增书籍a>
                <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook">显示全部书籍a>
            div>
            <div class="col-md-4 column">div>
          
            <div class="col-md-4 column">
                <form class="form-inline" method="post" action="${pageContext.request.contextPath}/book/queryBook" style="float:right">
                    <span style="color:red;font-weight: bold">${error}span>
                    <input type="text" name="queryBookName" class="form-control" placeholder="请输入要查询的书籍名称">
                    <input type="submit" value="查询" class="btn btn-primary">
                form>
            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>
                    <th>操作th>
                tr>
                thead>
                <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/toUpdate?id=${book.bookID}">修改a>
                              |  
                            <a href="${pageContext.request.contextPath}/book/deleteBook/${book.bookID}">删除a>
                        td>
                    tr>
                c:forEach>
                tbody>
            table>
        div>
    div>
div>
body>
html>

添加书籍页面 addBook.jsp,放在web-->WEB-INF目录下面

<%--
  Created by IntelliJ IDEA.
  User: dd
  Date: 2021/5/7
  Time: 15:23
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Titletitle>
    <link href="https://cdn.staticfile.org/twitter-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>新增书籍small>
                h1>
            div>
        div>
    div>
    <form action="${pageContext.request.contextPath}/book/addBook" method="post">
        <div class="form-group">
            <label>书籍名称label>
            <input type="text" name="bookName" class="form-control" required>
        div>
        <div class="form-group">
            <label>书籍数量label>
            <input type="text" name="bookCounts" class="form-control" required>
        div>
        <div class="form-group">
            <label>书籍详情label>
            <input type="text" name="detail" class="form-control" required>
        div>
        <div class="form-group">
            <input type="submit" class="form-control" value="添加">
        div>
    form>
div>
body>
html>

更新书籍页面 updateBook.jsp,放在web-->WEB-INF目录下面

<%--
  Created by IntelliJ IDEA.
  User: dd
  Date: 2021/5/7
  Time: 17:22
  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>
    <link href="https://cdn.staticfile.org/twitter-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>修改书籍small>
                h1>
            div>
        div>
    div>
    <form action="${pageContext.request.contextPath}/book/updateBook" method="post">

        <%--        需要id，前端传递隐藏域--%>
        <input type="hidden" name="bookID" value="${QBook.bookID}">
        <div class="form-group">
            <label>书籍名称label>
            <input type="text" name="bookName" value="${QBook.bookName}" class="form-control" required>
        div>
        <div class="form-group">
            <label>书籍数量label>
            <input type="text" name="bookCounts" value="${QBook.bookCounts}" class="form-control" required>
        div>
        <div class="form-group">
            <label>书籍详情label>
            <input type="text" name="detail" value="${QBook.detail}" class="form-control" required>
        div>
        <div class="form-group">
            <input type="submit" class="form-control" value="修改">
        div>
    form>
div>
body>
html>

看一下完整目录结构：

配置Tomcat，进行运行！（后面有配置tomcat的链接）
看一下效果：
首页
书籍展示界面

其他功能就不一 一展示了。

如果配置有问题，可以参考以下链接
项目配置以及tomcat配置