2023-02-10
一 、配置SSM环境
1 、添加日志文件
在“shf-parent/web-admin/src/main/resources ”下创建“logback.xml ”
2 、在“shf-parent/web-admin/src/main/resources ”下创建“mybatis-config.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>
<!--开启驼峰命名自动映射-->
<settings>
<setting name="mapUnderscoreToCamelCase" value="true"/>
</settings>
</configuration>
3 、在“shf-parent/web-admin/src/main/resources ”下创建spring文件夹 ，创建“db.properties ”
（1）db.properties
jdbc.username=数据库用户名
jdbc.password=数据库密码
jdbc.url=jdbc:mysql://localhost:3306/数据库名称?serverTimezone=Asia/Shanghai
jdbc.driverClassName=com.mysql.cj.jdbc.Driver
（2）在spring文件夹下
①创建“spring-dao.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:mybatis-spring="http://mybatis.org/schema/mybatis-spring"
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://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd">
<!-- 引入外部文件-->
<context:property-placeholder location="classpath:db.properties"></context:property-placeholder>
<!-- 配置数据源-->
<bean class="com.alibaba.druid.pool.DruidDataSource" id="dataSource" destroy-method="close">
<!-- 配置连接数据库的相关属性-->
<property name="username" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
<property name="url" value="${jdbc.url}"></property>
<property name="driverClassName" value="${jdbc.driverClassName}"></property>
</bean>
<!-- 整合mybatis-->
<!-- 1 、配置sqlsessionFactoryBean-->
<bean class="org.mybatis.spring.SqlSessionFactoryBean" id="sqlSessionFactoryBean">
<!-- 配置数据源属性-->
<property name="dataSource" ref="dataSource"></property>
<!-- 配置mybatis的全局配置文件的路径-->
<property name="configLocation" value="classpath:mybatis-config.xml"></property>
<!-- 配置给实体类包下所有的类起别名-->
<property name="typeAliasesPackage" value="com.hh.entity"></property>
<!-- 配置mapper映射文件的路径-->
<property name="mapperLocations" value="classpath:mapper/*.xml"></property>
</bean>
<!-- 2 、扫描mapper工具-->
<mybatis-spring:scan base-package="com.hh.dao"></mybatis-spring:scan>
</beans>
②创建“spring-service.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 https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 配置扫描的包-->
<context:component-scan base-package="com.hh.service"></context:component-scan>
<!-- 配置事务管理器-->
<bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager" id="transactionManager">
<!-- 配置数据源属性-->
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 开启事务注解支持-->
<tx:annotation-driven></tx:annotation-driven>
</beans>
③创建“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:aop="http://www.springframework.org/schema/aop"
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/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!--包扫描-->
<context:component-scan base-package="com.hh.controller" />
<!-- 没有匹配上的url全部按默认方式（就是直接访问）访问 ，避免拦截静态资源 -->
<mvc:default-servlet-handler/>
<!-- 开启mvc注解-->
<mvc:annotation-driven>
<mvc:message-converters register-defaults="true">
<!-- 配置Fastjson支持 -->
<bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
<value>application/json</value>
</list>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
<!--视图解析器-->
<bean id="templateResolver" class="org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver">
<!--配置前缀-->
<property name="prefix" value="/WEB-INF/templates/"></property>
<!--配置后缀-->
<property name="suffix" value=".html"></property>
<!--配置编码格式-->
<property name="characterEncoding" value="UTF-8"></property>
<!--设置缓存为null-->
<property name="cacheable" value="false"></property>
<!--配置模板模式,
HTML5:表示严格模式
LEGACYHTML5：表示宽松模式-->
<property name="templateMode" value="LEGACYHTML5"></property>
</bean>
<!--配置spring的视图解析器-->
<bean id="viewResolver" class="org.thymeleaf.spring5.view.ThymeleafViewResolver">
<!--设置编码格式-->
<property name="characterEncoding" value="UTF-8"></property>
<!--设置模板引擎-->
<property name="templateEngine" ref="templateEngine"/>
</bean>
<!--配置模板引擎-->
<bean id="templateEngine" class="org.thymeleaf.spring5.SpringTemplateEngine">
<!--引用视图解析器-->
<property name="templateResolver" ref="templateResolver"></property>
</bean>
</beans>
（3）在“shf-parent/web-admin/src/main/resources ”下创建mapper文件夹
（4）在“shf-parent/web-admin/src/main/java ”下创建包“com.hh.controller ” 、“com.hh.dao ” 、“com.hh.service ”
4 、配置“shf-parent/web-admin/src/main/webapp/WEB-INF/web.xml ”文件
<?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">
<display-name>web</display-name>
<!-- 配置POST请求请求乱码问题的过滤器-->
<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>
<init-param>
<param-name>forceRequestEncoding</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>forceResponseEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置前端控制器DispatcherServlet-->
<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/spring-mvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 配置当前WEB应用的初始化参数-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:/spring/spring-*.xml</param-value>
</context-param>
<!-- 配置监听器-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
二 、测试SSM环境
1 、添加表
2 、添加实体
3 、添加RoleDao
在“shf-parent/web-admin/src/main/java/com.hh.dao ”下创建RoleDao接口
public interface RoleDao {
List<Role> findAll();
}
4 、添加RoleDao.xml映射文件
<?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.hh.dao.RoleDao">
<!-- 用于select查询公用抽取的列 -->
<sql id="columns">
select id,role_name,role_code,description,create_time,update_time,is_deleted
</sql>
<!-- 查询所有-->
<select id="findAll" resultType="role">
<include refid="columns"></include>
from acl_role
where is_deleted = 0
</select>
</mapper>
5 、添加service
①在“shf-parent/web-admin/src/main/java/com.hh.service ”中创建“RoleService"
public interface RoleService {
List<Role> findAll();
}
②在“shf-parent/web-admin/src/main/java/com.hh.service ”中创建“impl.RoleServiceImpl"
@Service
public class RoleServiceImpl implements RoleService {
@Autowired
private RoleDao roleDao;
@Override
public List<Role> findAll() {
return roleDao.findAll();
}
}
6 、添加controller
在“shf-parent/web-admin/src/main/java/com.hh.controller ”中创建“RoleController"
@Controller
@RequestMapping("/role")
public class RoleController {
@Autowired
private RoleService roleService;
@RequestMapping
public String index(Map map){
//调用RoleService中获取所有的角色的方法
List<Role> roleList = roleService.findAll();
//将所有的角色放到request域中
map.put("list",roleList);
//渲染数据的页面
return "role/index";
}
}
7 、添加页面
在“shf-parent/web-admin/src/main/webapp/WEN-INF ”下创建“templates/role/index.html"
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<table>
<tr th:each="item,it : ${list}">
<td class="text-center" th:text="${it.count}">11</td>
<td th:text="${item.roleName}">22</td>
<td th:text="${item.roleCode}">33</td>
<td th:text="${item.description}">33</td>
<td th:text="${#dates.format(item.createTime,yyyy-MM-dd HH:mm:ss)}" >33</td>
</tr>
</table>
</body>
</html>
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