SSM框架
我是用maven敲的
首先引用pom.xml里面的依赖
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.fhx</groupId>
<artifactId>SSM_1.17</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<dependencies>
<!-- springMvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.6.RELEASE</version>
</dependency>
<!-- servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
<!-- mysql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.39</version>
</dependency>
<!-- mybats -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.8</version>
</dependency>
<!-- mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<!-- jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.3.6.RELEASE</version>
</dependency>
<!-- jstl-->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
</dependencies>
<!--tomcat 插件-->
<build>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<!-- 指定端口 -->
<port>8081</port>
<!-- 请求路径 -->
<path>/</path>
</configuration>
</plugin>
</plugins>
</build>
</project>
这个是结构
在WEB-INF里面写web.xml
在里面分别写 监听 servlet 上下文
web.xml里面的上下文
指定resources里面config里面的配置文件
<?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_3_1.xsd"
version="3.1">
<!-- 监听 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- servlet -->
<servlet>
<servlet-name>SSM_117</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>SSM_117</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--上下文-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath*:config/spring-*.xml
classpath*:config/applicationContext.xml
</param-value>
</context-param>
</web-app>
项目进去之后
首先会访问web.xml
根据servlet里面的 的名字
创建
SSM_117-servlet.xml
这个里面还有视图解析器 直接指向路径jsp
<?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"
xmlns:p="http://www.springframework.org/schema/p"
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">
<!-- 开启注解 -->
<mvc:annotation-driven/>
<!-- 指定controller指定路径 扫描其注解 -->
<context:component-scan base-package="com.fhx.controller"/>
<!-- 视图解析 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:viewClass="org.springframework.web.servlet.view.JstlView"
p:prefix="/jsp/"
p:suffix=".jsp"/>
</beans>
WEB-INF里面的2个写完了
现在开始写resources里面的文件
web.xml上下文直接指定applicationContext.xml
resources里面有
com/fhx/mapper-----DemoMapper.xml
config ------- applicationContext.xml (可以加载资源文件 指定service)
-------spring-mybatis.xml(指定mapper 实体类sesstion工厂)
-------spring-mysql.xml
mapper
------mybatis.cfg.xml
properties
-------mysql.properties(mysql 连接数据库的一些资源文件)
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"
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">
<!-- 扫描service -->
<context:component-scan base-package="com.fhx.service"/>
<context:annotation-config/>
<!-- 加载资源文件 properties -->
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>
classpath*:properties/mysql.properties
</value>
</list>
</property>
<property name="fileEncoding" value="UTF-8"/>
</bean>
</beans>
mysql.properties
mysql 连接数据库的资源文件
mysql.url=jdbc:mysql://localhost:3306/linux
mysql.driverClassName=com.mysql.jdbc.Driver
mysql.user=root
mysql.password=root
spring-mybatis.xml 创建session工厂
对象实体类 mapper
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- 配置Session工厂 -->
<bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!--configLocation属性指定mybatis的核心配置文件 -->
<property name="configLocation" value="classpath:mapper/mybatis.cfg.xml"/>
<property name="mapperLocations" value="classpath:com/fhx/mapper/*Mapper.xml"/>
<!-- 自动扫描需要定义类别名的包,将包内的JAVA类的类名作为类别名 -->
<property name="typeAliasesPackage" value="com.fhx.entity"/>
</bean>
<!-- 自动扫描所有的Mapper接口与文件 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.fhx.mapper"/>
</bean>
</beans>
spring-mysql.xml 用来连接数据库的
根据资源文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="url" value="${mysql.url}"/>
<property name="username" value="${mysql.user}"/>
<property name="password" value="${mysql.password}"/>
<property name="driverClassName" value="${mysql.driverClassName}"/>
</bean>
</beans>
mapper里面的这个 mybatis.cfg.xml
打印mybatis里面的一些配置
<?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>
</configuration>
DemoMapper.xml
写sql语句的
<?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.fhx.mapper.DemoMapper">
<select id="list" resultType="com.fhx.entity.Clazz">
select
*
from clazz
</select>
</mapper>
最后这些配置应该完了
可以敲层了
controller------service-----servicelmpl-----mapper----mapper.xml