SSM框架快速整合，案例演示

作者: 虹猫日志 | 来源:发表于2019-12-16 11:24 被阅读0次

观看本文前，请至少保证对 Spring+Spring MVC+MyBatis 有一定的了解，并熟悉使用Maven进行项目构建。

新建一个 Maven WEB 项目

这里我只列出大致的目录结构，具体请根据自己的需求进行更改。

演示结构

进行框架整合

编写 pom.xml 添加框架所需依赖

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.yileaf</groupId>
    <artifactId>SSM</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>

    <name>SSM Maven Web</name>

    <!-- 统一设置设置版本号 -->
    <properties>
        <junit-version>4.12</junit-version>
        <log4j-version>2.6.2</log4j-version>
        <lombok-version>1.18.8</lombok-version>
        <jackson.version>2.10.0</jackson.version>
        <druid-version>1.1.20</druid-version>
        <mybatis-version>3.5.3</mybatis-version>
        <mybatis-spring-version>2.0.3</mybatis-spring-version>
        <spring-version>5.2.1.RELEASE</spring-version>
        <mysql-connector-java-version>5.1.47</mysql-connector-java-version>
    </properties>

    <dependencies>

        <!-- spring依赖 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring-version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring-version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring-version}</version>
        </dependency>
        <!--aspectj切面编程支持-->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.9.2</version>
        </dependency>

        <!--Jackson依赖-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>${jackson.version}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>${jackson.version}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>${jackson.version}</version>
        </dependency>

        <!-- mybatis依赖 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${mybatis-version}</version>
        </dependency>
        <!--mybatis-spring整合包 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>${mybatis-spring-version}</version>
        </dependency>

        <!--数据库连接驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>${mysql-connector-java-version}</version>
        </dependency>
        <!-- druid连接池-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>${druid-version}</version>
        </dependency>

        <!-- lombok支持 -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>${lombok-version}</version>
            <scope>provided</scope>
        </dependency>

        <!--servlet支持-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>4.0.1</version>
            <scope>provided</scope>
        </dependency>

        <!-- 单元测试 -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>${junit-version}</version>
            <scope>test</scope>
        </dependency>

        <!-- log4j2日志文件依赖 -->
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-slf4j-impl</artifactId>
            <version>${log4j-version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>${log4j-version}</version>
        </dependency>

        <!--分页插件-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>5.1.10</version>
        </dependency>
        <dependency>
            <groupId>com.github.jsqlparser</groupId>
            <artifactId>jsqlparser</artifactId>
            <version>2.0</version>
        </dependency>

    </dependencies>

    <build>
        <finalName>SSM</finalName>
        <!--解决maven项目下，资源文件的读取问题-->
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
        </resources>
    </build>
</project>

编写数据库连接配置(我这里的名字是jdbc.properties)

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/demo?useSSL=false
jdbc.username=root
jdbc.password=AngelBeats

编写 MyBatis 核心配置文件(我这里的名字是sqlMapConfig.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>
    <!--配置别名-->
    <typeAliases>
        <!--指定包名，别名就是类名-->
        <package name="com.ssm.study.entity"/>
    </typeAliases>
    <!--配置分页-->
    <plugins>
        <plugin interceptor="com.github.pagehelper.PageInterceptor">
            <property name="reasonable" value="true"/>
        </plugin>
    </plugins>
</configuration>

编写 Spring 核心配置文件(我这里的名字是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"
       xmlns:context="http://www.springframework.org/schema/context"
       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 http://www.springframework.org/schema/context/spring-context.xsd
                           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!--开启注解扫描,我这里直接扫描整个项目-->
    <context:component-scan base-package="com.ssm.study">
        <!--排除Controller的注解扫描，让Springmvc负责-->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <!-- 加载properties文件 -->
    <context:property-placeholder location="classpath:jdbc.properties"/>

    <!-- 配置数据源 -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${jdbc.driver}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>

    <!-- 配置sessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--注入数据源-->
        <property name="dataSource" ref="dataSource"/>
        <!--加载mybatis核心配置-->
        <property name="configLocation" value="classpath:sqlMapConfig.xml"/>
    </bean>

    <!--配置Mapper扫描,让Spring容器产生Mapper实现类-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.ssm.study.mapper"/>
    </bean>

    <!--配置事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!--开启事务注解驱动-->
    <tx:annotation-driven/>
</beans>

编写 Spring MVC 配置文件(我这里的名字是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 http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!--Controller的组件扫描-->
    <context:component-scan base-package="com.ssm.study.web.controller"/>

    <!--mvc注解驱动-->
    <mvc:annotation-driven/>

    <!--开放静态资源访问-->
    <mvc:default-servlet-handler/>
</beans>

编写 web.xml 加载我们的配置

<?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">
    <!--配置监听器-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!--全局初始化参数-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>

    <!--解决乱码的过滤器-->
    <filter>
        <filter-name>CharacterEncodingFilter</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>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!--配置SpringMVC的核心控制器-->
    <servlet>
        <servlet-name>DispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--初始化加载属于spring-mvc的xml-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-mvc.xml</param-value>
        </init-param>
        <!--设置启动创建对象-->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <!--配置拦截路径-->
    <servlet-mapping>
        <servlet-name>DispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

到此所有配置就结束了

案例编码

编写实体类，对应数据库的字段

数据库设计

用户实体类

编写数据返回封装类

Code

Msg

编写数据接口

UserMapper

UserMapper.xml

编写 Service 层

UserService

UserServiceImpl

编写 controller 层

BaseController

UserController

编写前端数据展示界面(我这里使用Layui提供的动态表格进行数据展示)

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>table模块快速使用</title>
    <meta name="renderer" content="webkit">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <link rel="stylesheet" href="/layui/css/layui.css" media="all">
</head>
<body>

<div class="demoTable" style="margin: 30px 300px;">
    搜索用户名：
    <div class="layui-inline">
        <input class="layui-input" name="name" id="demoReload" autocomplete="off">
    </div>
    <button class="layui-btn" data-type="reload">搜索</button>
</div>

<table class="layui-hide" id="demo"></table>

<script src="/layui/layui.js"></script>
<script>
    layui.use(['table','layer'], function () {
        const table = layui.table;
        const layer = layui.layer;
        const index = layer.load(1);//添加laoding,0-2两种方式
        //获取参数
        table.render({
            elem: '#demo'
            , height: 460
            , url: '/user/findAll' //数据接口
            , title: '用户表'
            , page: true //开启分页
            , limits: [8, 10, 20] //每页条数的选择项
            , limit: 8 //每页默认显示的数量
            , cols: [[ //表头
                {type: 'checkbox', fixed: 'left'}
                , {field: 'id', title: 'ID', width: 60, sort: true}
                , {field: 'name', title: '用户名', width: 180}
                , {field: 'age', title: '年龄', width: 80, sort: true}
                , {field: 'birthday', title: '生日', width: 180}
                , {field: 'phone', title: '联系电话', width: 160}
                , {field: 'bwh', title: '三围', width: 160}
                , {field: 'address', title: '联系地址', width: 200}
            ]]
            , id: 'testReload'
            , request: {
                pageName: 'pageNum',//页码的参数名称，默认：page
                limitName: 'pageSize' //每页数据量的参数名，默认：limit
            }
            , response: {
                statusCode: 200,//重新规定成功的状态码为 200，table 组件默认为 0
                msgName: 'message', //规定状态信息的字段名称，默认：msg
            },
            done: function (res) {   //返回数据执行回调函数
                layer.close(index);    //返回数据关闭loading
            }

        });
        let $ = layui.$, active = {
            reload: function () {
                const demoReload = $('#demoReload');
                //执行重载
                table.reload('testReload', {
                    page: {
                        curr: 1 //重新从第 1 页开始
                    }
                    , where: {
                        username: demoReload.val()
                    }
                }, 'data');
            }
        };

        $('.demoTable .layui-btn').on('click', function () {
            const type = $(this).data('type');
            active[type] ? active[type].call(this) : '';
        });
    });
</script>
</body>
</html>

案例运行效果

案例效果.gif

案例源码存放在Frame-Study库SSM分支。地址：https://github.com/CodeHaotian/Frame-Study.git

SSM框架快速整合，案例演示

新建一个 Maven WEB 项目

进行框架整合

案例编码

案例运行效果

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