项目结构目录:
第一步:
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>
首先来配置一下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>
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>
<!-- 定义别名-->
<typeAliases>
<typeAlias type="com.zking.domain.Account" alias="account"></typeAlias>
</typeAliases>
</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>
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
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();
}
}
mapper层代码:
public interface AccountMapper {
void save(Account account);
List<Account> findAll();
}
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;
}
}
还有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>
差点忘记了最后一个文件
web.xml
<?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_3_1.xsd"
version="3.1">
<!--spring 监听器-->
<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>
<!-- 配置spring的前端控制器-->
<servlet>
<servlet-name>DispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>DispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 防止乱码过滤器-->
<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>
</web-app>