实例！使用Idea创建SSM框架的Maven项目

逃离我推掉我的手 2022-10-31 15:58 156阅读 0赞

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大家好，我是雄雄，欢迎关注微信公众号【雄雄的小课堂】。

前言

书接前文，昨天带着大家下载且配置了maven，以及在idea中创建maven项目，今天，我们就结合ssm框架，在idea中实现一个增删改查案例。

昨天的文章：[手把手教你搭建Maven项目][Maven]

# 01 #

配置pom文件

通常，我们需要使用ssm框架的时候，需要加载一系列的jar包，在未使用maven的时候，我们则采用的是将所需jar包统统复制到项目的lib目录中，现在我们不必那样做了，只需要简单的在pom文件中配置即可。

**那么，怎么配置呢？**

我们以mysql的驱动jar为例（其他jar包配置方式一样，可执行按此配置），mysql的驱动jar包我采用的是：mysql-connector-java-8.0.23，配置方式如下：

1）maven官网为我们提供了jar包在pom文件中的配置方式，打开官网：https://search.maven.org/，我们在输入框中输入需要配置的jar包名，如下：

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![format_png 2][]

![format_png 3][]

可以在左边框中的下拉列表里选择版本，在右边的Apache Maven下面，复制所有代码。

复制到项目中pom文件的这里：

![format_png 4][]

![format_png 5][]

如果你不知道ssm需要哪些jar包，可以去百度搜索，pom中配置方式是一样的，在这就不一一列举了，下面是整个pom.xml文件的代码：

<?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>
    
      <groupId>com.xiongxiong</groupId>
      <artifactId>BookManageSys</artifactId>
      <version>1.0-SNAPSHOT</version>
      <packaging>war</packaging>
    
      <name>BookManageSys Maven Webapp</name>
      
      <url>http://www.example.com</url>
    
      <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.7</maven.compiler.source>
        <maven.compiler.target>1.7</maven.compiler.target>
      </properties>
    
      <dependencies>
        
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>4.11</version>
          <scope>test</scope>
        </dependency>
    
        <dependency>
          <groupId>mysql</groupId>
          <artifactId>mysql-connector-java</artifactId>
          <version>8.0.23</version>
        </dependency>
        
        
        <dependency>
          <groupId>javaee</groupId>
          <artifactId>javaee-api</artifactId>
          <version>5</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-core</artifactId>
          <version>4.2.5.RELEASE</version>
        </dependency>
    
    
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-beans</artifactId>
          <version>4.2.2.RELEASE</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-context</artifactId>
          <version>4.2.2.RELEASE</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-tx</artifactId>
          <version>4.1.9.RELEASE</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-aspects</artifactId>
          <version>4.2.1.RELEASE</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-context-support</artifactId>
          <version>4.1.9.RELEASE</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-jdbc</artifactId>
          <version>4.2.3.release</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-test</artifactId>
          <version>4.1.9.RELEASE</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-web</artifactId>
          <version>4.2.3.RELEASE</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-webmvc</artifactId>
          <version>4.1.9.RELEASE</version>
        </dependency>
    
        <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis</artifactId>
          <version>3.2.2</version>
        </dependency>
    
        <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis-spring</artifactId>
          <version>1.3.0</version>
        </dependency>
    
        <dependency>
          <groupId>org.javassist</groupId>
          <artifactId>javassist</artifactId>
          <version>3.17.1-GA</version>
        </dependency>
    
        <dependency>
          <groupId>cglib</groupId>
          <artifactId>cglib</artifactId>
          <version>2.2.2</version>
        </dependency>
    
        <dependency>
          <groupId>c3p0</groupId>
          <artifactId>c3p0</artifactId>
          <version>0.9.1.2</version>
        </dependency>
    
        
        <dependency>
          <groupId>jstl</groupId>
          <artifactId>jstl</artifactId>
          <version>1.2</version>
        </dependency>
      </dependencies>
    
    
      <build>
        <finalName>BookManageSys</finalName>
        <pluginManagement>
          <plugins>
            <plugin>
              <artifactId>maven-clean-plugin</artifactId>
              <version>3.1.0</version>
            </plugin>
            
            <plugin>
              <artifactId>maven-resources-plugin</artifactId>
              <version>3.0.2</version>
            </plugin>
            <plugin>
              <artifactId>maven-compiler-plugin</artifactId>
              <version>3.8.0</version>
            </plugin>
            <plugin>
              <artifactId>maven-surefire-plugin</artifactId>
              <version>2.22.1</version>
            </plugin>
            <plugin>
              <artifactId>maven-war-plugin</artifactId>
              <version>3.2.2</version>
            </plugin>
            <plugin>
              <artifactId>maven-install-plugin</artifactId>
              <version>2.5.2</version>
            </plugin>
            <plugin>
              <artifactId>maven-deploy-plugin</artifactId>
              <version>2.8.2</version>
            </plugin>
          </plugins>
        </pluginManagement>
      </build>
    </project>

这是最后导入的jar包：

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# 02 #

在main目录中创建resources资源文件夹

该资源文件夹用来存放ssm的配置文件，**applicationContext.xml**,**springmvc-servlet.xml**,**mybatis-config.xml**。

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各配置文件代码如下：

**applicationContext.xml文件**：

<?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: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-3.1.xsd
      http://www.springframework.org/schema/mvc 
      http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
      http://www.springframework.org/schema/context 
      http://www.springframework.org/schema/context/spring-context-3.1.xsd
      ">
    
        
        <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
            <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
            <property name="url" value="jdbc:mysql://localhost:3306/schooldb"></property>
            <property name="username" value="root"></property>
            <property name="password" value="root"></property>
        </bean>
    
        
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <property name="dataSource" ref="dataSource"></property>
            <property name="configLocation" value="classpath:mybatis-config.xml"></property>
            <property name="mapperLocations">
                <list>
                    <value>classpath:com/dao/*.xml</value>
                </list>
            </property>
        </bean>
    
        
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="basePackage" value="com.dao"></property>
        </bean>
    
        
        <context:component-scan base-package="com.dao,com.service,com.web"/>
        <mvc:annotation-driven/>
    
    </beans>

**springmvc-servlet.xml文件**：

<?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:p="http://www.springframework.org/schema/p"
            xmlns:aop="http://www.springframework.org/schema/aop"
            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-3.1.xsd
      http://www.springframework.org/schema/p 
      http://www.springframework.org/schema/p/spring-p-3.1.xsd
      http://www.springframework.org/schema/aop 
      http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
      http://www.springframework.org/schema/mvc 
      http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
      http://www.springframework.org/schema/context 
      http://www.springframework.org/schema/context/spring-context-3.1.xsd
      ">
    
        
        <context:component-scan base-package="com.web,com.dao,com.service"/>
        <mvc:annotation-driven/>
        
        <mvc:default-servlet-handler/>
    
        
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/"></property>
            <property name="suffix" value=".jsp"></property>
        </bean>
    
    </beans>

**mybatis-config.xml文件**：

<?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>
    
        <settings>
            
            <setting name="logImpl" value="STDOUT_LOGGING"/>
        </settings>
        
        <typeAliases>
            <package name="com.entity"/>
        </typeAliases>
    
    </configuration>

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# 03 #

配置web.xml文件

web.xml文件所在的路径：src/main/webapp/WEB/INF/wen.xml

代码如下：

<!DOCTYPE web-app PUBLIC
     "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
     "http://java.sun.com/dtd/web-app_2_3.dtd" >
    
    
    <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">
      <display-name>Archetype Created Web Application</display-name>
      <welcome-file-list>
        <welcome-file>/</welcome-file>
      </welcome-file-list>
    
      
      <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:springmvc-servlet.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>
    
      
      <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
      </context-param>
      
      <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
      </listener>
    
      
      <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>
        <init-param>
          <param-name>forceEncoding</param-name>
          <param-value>true</param-value>
        </init-param>
      </filter>
      <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
      </filter-mapping>
    </web-app>

# 04 #

创建src资源资源文件夹

在main文件夹中创建资源文件夹src,且在里面创建实体层、Dao层、Service层和web层。

![format_png 9][]

下面我们来在src中创建包com（包名随便起）,在com中分别创建entity、dao、service以及web包（Package）,分别在各个包中创建对应的类，其目录结构如下：

![format_png 10][]

下面是各个类的代码：

BookManage.java：

package com.entity;
    
    import org.springframework.format.annotation.DateTimeFormat;
    
    import java.util.Date;
    
    public class BookManage {
    
        private int bid;
        private String bname;
        private String bauthor;
    
        @DateTimeFormat(pattern = "yyyy-MM-dd")
        private Date btime;
        private int btype;
    
        public int getBid() {
            return bid;
        }
    
        public void setBid(int bid) {
            this.bid = bid;
        }
    
        public String getBname() {
            return bname;
        }
    
        public void setBname(String bname) {
            this.bname = bname;
        }
    
        public String getBauthor() {
            return bauthor;
        }
    
        public void setBauthor(String bauthor) {
            this.bauthor = bauthor;
        }
    
        public Date getBtime() {
            return btime;
        }
    
        public void setBtime(Date btime) {
            this.btime = btime;
        }
    
        public int getBtype() {
            return btype;
        }
    
        public void setBtype(int btype) {
            this.btype = btype;
        }
    }

BookManageMapper.java

package com.dao;
    
    import com.entity.BookManage;
    
    import java.util.List;
    
    public interface BookManageMapper {
    
        //查询全部
        List<BookManage> findBookAll();
    
        //添加
        int addBook(BookManage bookManage);
    
        //删除
        int delBook(int bid);
    }

BookManageMapper.xml

<?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.dao.BookManageMapper">
    
        
        <select id="findBookAll" resultType="BookManage">
            select * from BookManage;
        </select>
        
        <insert id="addBook" parameterType="BookManage">
            insert into bookmanage (bname,bauthor,btime,btype)
            value(#{bname},#{bauthor},#{btime},#{btype});
        </insert>
    
        
        <delete id="delBook" parameterType="int">
            delete from BookManage where bid = #{bid};
        </delete>
    
    </mapper>

IBookManageService.java

package com.service;
    
    import com.entity.BookManage;
    
    import java.util.List;
    
    public interface IBookManageService {
    
    
        //查询全部
        List<BookManage> findBookAll();
    
        //添加
        int addBook(BookManage bookManage);
    
        //删除
        int delBook(int bid);
    }

BookManageServiceImpl.java

package com.service.impl;
    
    
    import com.dao.BookManageMapper;
    import com.entity.BookManage;
    import com.service.IBookManageService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    
    
    
    import java.util.List;
    
    @Service("bookManageService")
    public class BookManageServiceImpl implements IBookManageService {
    
        @Autowired
        private BookManageMapper bookManageMapper;
    
        @Override
        public List<BookManage> findBookAll() {
            return bookManageMapper.findBookAll();
        }
    
        @Override
        public int addBook(BookManage bookManage) {
            return bookManageMapper.addBook(bookManage);
        }
    
        @Override
        public int delBook(int bid) {
            return bookManageMapper.delBook(bid);
        }
    
        public BookManageMapper getBookManageMapper() {
            return bookManageMapper;
        }
    
        public void setBookManageMapper(BookManageMapper bookManageMapper) {
            this.bookManageMapper = bookManageMapper;
        }
    }

IndexController.java

package com.web;
    
    import com.entity.BookManage;
    import com.service.IBookManageService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import java.util.List;
    
    @Controller
    @RequestMapping("/")
    public class IndexController {
    
        //创建Service的对象
        @Autowired
        private IBookManageService bookManageService;
    
        //默认进入首页
        @RequestMapping("/")
        public String index(Model model){
    
            List<BookManage> bookManageList =
                    bookManageService.findBookAll();
            model.addAttribute("bookManageList",bookManageList);
            return "index";
        }
    
        //删除
        @RequestMapping("delBook")
        public String delBook(Model model,int bid){
            bookManageService.delBook(bid);
            index(model);
            return "index";
        }
        //添加
        @RequestMapping("addBook")
        public String addBook(BookManage bookManage,Model model){
            bookManageService.addBook(bookManage);
            index(model);
            return "index";
        }
    
    
        public IBookManageService getBookManageService() {
            return bookManageService;
        }
    
        public void setBookManageService(IBookManageService bookManageService) {
            this.bookManageService = bookManageService;
        }
    }

# 05 #

引入jQuery环境

将jquery的环境拷贝到项目中的webapp下：

![format_png 11][]

# 06 #

首页

修改index.jsp,使其实现进入页面即查询数据库中所有数据功能，代码如下：

<%--
      Created by IntelliJ IDEA.
      User: 24519
      Date: 2021/1/20
      Time: 10:38
      To change this template use File | Settings | File Templates.
    --%>  
    <%@ page isELIgnored="false"%>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
    <%@taglib prefix="f" uri="http://java.sun.com/jsp/jstl/fmt" %>
    <html>
      <head>
        <title>首页</title>
      </head>
      <body>
        <h1>图书信息</h1>
      <table border="1">
        <tr>
          <td>图书名称</td>
          <td>图书作者</td>
          <td>购买时间</td>
          <td>图书分类</td>
          <td>操作</td>
        </tr>
        <c:forEach items="${bookManageList}" var="book">
          <tr>
            <td>${book.bname}</td>
            <td>${book.bauthor}</td>
            <td>
                <f:formatDate value="${book.btime}" pattern="yyyy-MM-dd"></f:formatDate>
                </td>
            <td>
                <c:if test="${book.btype==1}">
                  计算机/软件
                </c:if>
              <c:if test="${book.btype==2}">
                小说/文摘
              </c:if>
              <c:if test="${book.btype==3}">
                杂项
              </c:if>
            </td>
            <td><a href="delBook?bid=${book.bid}">删除</a></td>
          </tr>
        </c:forEach>
    
      </table>
      <a href="addBook.jsp" style="color:red">新增图书信息</a>
      <script src="js/jquery-1.12.4.js" type="text/javascript"></script>
      <script type="text/javascript">
        $(function(){
            $("tr:even").css("background","green");
            $("tr:first").css("background","blue");
        });
      </script>
      </body>
    </html>

# 07 #

添加图书的页面

创建添加数据的页面addBook.jsp,代码如下：

注意，addBook.jsp和index.jsp都需要放在webapp目录下。

# 08 #

配置tomcat

![format_png 12][]

![format_png 13][]

![format_png 14][]

![format_png 15][]

![format_png 16][]

测试发现，正常运行。

最后附数据库脚本代码：

/*
    SQLyog Professional v12.08 (32 bit)
    MySQL - 5.5.27 : Database - schooldb
    *********************************************************************
    */
    
    
    /*!40101 SET NAMES utf8 */;
    
    /*!40101 SET SQL_MODE=''*/;
    
    /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
    /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
    /*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
    /*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
    CREATE DATABASE /*!32312 IF NOT EXISTS*/`schooldb` /*!40100 DEFAULT CHARACTER SET utf8 */;
    
    USE `schooldb`;
    
    /*Table structure for table `bookmanage` */
    
    DROP TABLE IF EXISTS `bookmanage`;
    
    CREATE TABLE `bookmanage` (
      `bid` int(11) NOT NULL AUTO_INCREMENT,
      `bname` varchar(40) NOT NULL,
      `bauthor` varchar(40) NOT NULL,
      `btime` datetime NOT NULL,
      `btype` int(11) NOT NULL,
      PRIMARY KEY (`bid`)
    ) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;
    
    /*Data for the table `bookmanage` */
    
    insert  into `bookmanage`(`bid`,`bname`,`bauthor`,`btime`,`btype`) values (1,'三国演义','罗贯中','2021-09-08 00:00:00',2),(2,'水浒传','施耐庵','2021-09-08 00:00:00',2),(3,'狂人日记','魯迅','2021-09-08 00:00:00',3),(4,'改善java的151个建议','秦少波','2021-09-08 00:00:00',1);
    
    /*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
    /*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
    /*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
    /*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;

今天的分享就到这里了，明天见！

**往期精彩**

[手把手教你搭建Maven项目][Maven]

[2021-02-22][Maven]

[![format_png 17][] ][Maven]

[java中采用异常链传递异常，既友好又方便！][java]

[2021-02-20][java]

[![format_png 18][] ][java]

[新春视频剪辑][Link 1]

[2021-02-21][Link 1]

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[提倡异常封装][Link 2]

[2021-02-19][Link 2]

[![format_png 20][] ][Link 2]

[想着看你手头宽裕的话帮我周转一下……][Link 3]

[2021-02-17][Link 3]

[![format_png 21][] ][Link 3]

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点分享

![format_png 24][]

点点赞

![format_png 25][]

点在看

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[Maven]: http://mp.weixin.qq.com/s?__biz=MzIxNjE1ODA5NA%3D%3D&chksm=978fdb65a0f85273142fb932b9da29d959ce155a606ccdfa9dc18f51920ff3b2235a3f53ce7f&idx=1&mid=2247500164&scene=21&sn=35c3dffb0a16e25e8d5af399ef924a99#wechat_redirect
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[format_png 18]: /images/20221024/23cdb1138059437e84b3caf6bee88212.png
[Link 1]: http://mp.weixin.qq.com/s?__biz=MzIxNjE1ODA5NA%3D%3D&chksm=978fdbb5a0f852a36b265dd4aeb84c054aa62049ecac094ee4515a4ffde1bc68430fb5fd7906&idx=1&mid=2247500116&scene=21&sn=eaaddce91e19e90fa580078a38bae71d#wechat_redirect
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