0基础教你搭建SSM框架

已于 2025-03-13 17:45:32 修改
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文章标签： spring mvc mybatis
于 2025-03-13 15:53:47 首次发布
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本文链接：https://blog.youkuaiyun.com/javaProgrammerr/article/details/146232830
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项目结构目录:

1. 导入ssm框架所需坐标 比如spring,springmvc,mybatis

<dependencies>
    <!--spring相关-->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>5.0.5.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjweaver</artifactId>
        <version>1.8.4</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>5.0.5.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>5.0.5.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>5.0.5.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>5.0.5.RELEASE</version>
    </dependency>

    <!--servlet和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>

    <!--mybatis相关-->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.4.6</version>
    </dependency>
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>2.0.7</version>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.29</version>
    </dependency>
    <dependency>
        <groupId>com.mchange</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.5.5</version>
    </dependency>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
    </dependency>
    <dependency>
        <groupId>jstl</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>
</dependencies>

2. 来配置一下spring和springmvc的配置文件

spring的配置文件: 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: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
       http://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd
">
<!--        配置组件扫描-->
    <context:component-scan base-package="com.zking">
<!--        排除controller的扫描-->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

<!--    加载properties-->
    <context:property-placeholder location="classpath:jdbc.properties"/>
<!--    配置数据源-->
    <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}"/>
    </bean>
<!--    配置mybatis的sqlSessionFactory-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
<!--        加载mybatis核心文件-->
        <property name="configLocation" value="classpath:sqlMapConfig.xml"/>
    </bean>

<!--    配置扫描mapper所在的包  为mapper创建实现类 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.zking.mapper"></property>
    </bean>
<!--    声明式事务控制-->
<!--    配置平台事务管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

<!--    配置事务增强-->
    <tx:advice id="txAdvice">
        <tx:attributes>
            <tx:method name="*"/>
        </tx:attributes>
    </tx:advice>

<!--    事务aop的织入-->
    <aop:config>
        <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.zking.service.impl.*.*(..))"></aop:advisor>
    </aop:config>
</beans>

springmvc的配置文件:

<?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.xsd
              http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc.xsd
              http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd
">
<!--    配置组件扫描-->
    <context:component-scan base-package="com.zking.controller"/>
<!--    配置mvc注解驱动-->
    <mvc:annotation-driven/>

<!--    配置内部资源视图扫描器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="suffix" value=".jsp"/>
        <property name="prefix" value="/"/>
    </bean>

<!--    配置静态资源访问器-->
    <mvc:default-servlet-handler/>


</beans>

3.下面就是mybatis的配置文件了

这是核心配置文件:我这里用spring整合了mybatis所以配置文件中不用写什么代码

<?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>
    <!--加载properties文件-->
<!--    <properties resource="jdbc.properties"></properties>-->
<!--    定义别名-->
    <typeAliases>
        <typeAlias type="com.zking.domain.Account" alias="account"></typeAlias>
<!--        <package name="com.zking.domain"/>-->
    </typeAliases>
<!--    <environments default="jdbc">-->
<!--        <environment id="jdbc">-->
<!--            <transactionManager type="JDBC"></transactionManager>-->
<!--            <dataSource type="POOLED">-->
<!--                <property name="driver" value="${jdbc.driver}"/>-->
<!--                <property name="url" value="${jdbc.url}"/>-->
<!--                <property name="username" value="${jdbc.username}"/>-->
<!--                <property name="password" value="${jdbc.password}"/>-->
<!--            </dataSource>-->
<!--        </environment>-->
<!--    </environments>-->

<!--    <mappers>-->
<!--        <mapper resource="com/zking/mapper/AccountMapper.xml"></mapper>-->
<!--    </mappers>-->
</configuration>

这是mybatis的映射文件它也可以省略,它可以使用注解代替

<?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.zking.mapper.AccountMapper">
    <select id="findAll" resultType="account">
        select * from account
    </select>
    <insert id="save" parameterType="account">
        insert into account values(#{id},#{name},#{money})
    </insert>
</mapper>

4.下面就是实体类了:

public class Account implements Serializable {
    private Integer id;
    private String name;
    private String money;
    //由于set和get代码太多而且大家都知道所以我就不写了

5.业务层代码:

public interface AccountService {
    /**
     * 保存账户数据
     * @param account
     */
    void save(Account account) throws IOException;

    /**
     * 查询账户数据
     * @return
     */
    List<Account> findAll() throws IOException;
}

业务层实现:

@Service("accountService")
public class AccountServiceImpl implements AccountService {
    @Autowired
    private AccountMapper accountMapper;
    @Override
    public void save(Account account) {
        accountMapper.save(account);
    }

    @Override
    public List<Account> findAll() {
        return accountMapper.findAll();
    }
}

6.mapper层代码:

public interface AccountMapper {

    void save(Account account);

    List<Account> findAll();
}

7. controller层代码:

@Controller
@RequestMapping("/account")
public class AccountController {
    @Autowired
    private AccountService accountService;
//    保存
    @RequestMapping(value = "/save",produces = "text/html;charset=UTF-8")
    @ResponseBody
    public String save(Account account) {
       accountService.save(account);
        return "保存成功";
    }
    //查询功能
    @RequestMapping("/findAll")
    public ModelAndView findAll(){
        List<Account> accounts=null;
        ModelAndView modelAndView=new ModelAndView();
        accounts = accountService.findAll();
        modelAndView.addObject("accounts",accounts);
        modelAndView.setViewName("accountList");
        return modelAndView;
    }
}

8.最后两个前端页面代码:

绑定数据的:我这里写的就是一个简单的表格,因为时间的原因就没用js了直接使用的c标签

<html>
<head>
    <title>Title</title>
</head>
<body style="text-align:center;">
<h1>展示账户数据</h1>
<table border="1" content="auto" align="center">
    <thead>
    <tr>
        <td>编号</td>
        <td>姓名</td>
        <td>金额</td>
    </tr>
    </thead>
    <tbody>
    <c:forEach items="${accounts}" var="a">
    <tr>
        <td>${a.id}</td>
        <td>${a.name}</td>
        <td>${a.money}</td>
    </tr>
    </c:forEach>
    </tbody>
</table>
</body>
</html>

下面就是一个简单的增加页面

<html>
<head>
    <title>Title</title>
</head>
<body>
    <h1>添加账户信息表单</h1>
<form name="accountForm" action="${pageContext.request.contextPath}/account/save" method="post">
    账户名称:<input type="text" name="name"><br/>
    账户金额:<input type="text" name="money"><br/>
    <input type="submit" value="保存"><br/>
</form>
</body>
</html>

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