关于开发springmvc和mybatis的环境搭建

当今在web开发过程 中并不是只有三大框架，还有springmvc和mybatis，今天就来和大家分享一下springmvc和mybatis在项目开发的过程中环境的搭建

第一步，新建一个工程，导入所需要的jar包，这个在这不多说，网上有很多整理好的jar包，去网上下载就行

第二步，配置环境：先配置mybatis的环境，为啥更好的实现数据库的迁移，我们需要先建一个db.properties，用来储存自己数据库的内容，我的数据库是mysql，所以代码如下：

jdbc.driver=com.mysql.jdbc.Driver

jdbc.url=jdbc:mysql://localhost:3306/login

jdbc.username=root

jdbc.password=root

再见一个log4j.properties用来设置控制台输出的日志，这样可以让我们更好的最终程序运行，代码如下：

# Global logging configuration

#\u5728\u5f00\u53d1\u73af\u5883\u4e0b\u65e5\u5fd7\u7ea7\u522b\u8981\u8bbe\u7f6e\u6210DEBUG\uff0c\u751f\u4ea7\u73af\u5883\u8bbe\u7f6e\u6210info\u6216error

log4j.rootLogger=DEBUG, stdout

# Console output...

log4j.appender.stdout=org.apache.log4j.ConsoleAppender

log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

下面开始配置mybatis的配置文件，因为mybatis交给springmvc代理，所以配置文件比较简单创建sqlMapconfig.xml，代码如下：<?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>

<typeAliases>

<package name ="loginEmail" />

<package name ="po" />

</typeAliases>

<environments default="development">

<environment id="development">

<transactionManager type="JDBC"/>

<dataSource type="POOLED">

<property name="driver" value="com.mysql.jdbc.Driver"/>

<property name="url" value="jdbc:mysql://localhost:3306/login?"/>

<property name="username" value="root"/>

<property name="password" value="312527"/>

</dataSource>

</environment>

</environments>

<mappers>

<mapper resource="config/UserMapper.xml"/>

</mappers>

</configuration

配置springmvc的配置文件

（1）创建sprinmvc.xml文件，指定要扫描的包，注解器，引射器和视图解析器，主要代码如下：看时根据自己的工程修改：

<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: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-3.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd " >

<!-- 可以扫描controller、service、...

这里让扫描controller，指定controller的包

-->

<context:component-scan base-package="controller"></context:component-scan>

<!-- 使用 mvc:annotation-driven代替上边注解映射器和注解适配器配置

mvc:annotation-driven默认加载很多的参数绑定方法，

比如json转换解析器就默认加载了，如果使用mvc:annotation-driven不用配置上边的RequestMappingHandlerMapping和RequestMappingHandlerAdapter

实际开发时使用mvc:annotation-driven

-->

<!-- <mvc:annotation-driven conversion-service="conversionService"></mvc:annotation-driven> -->

<!--注解映射器 -->

<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>

<!--注解适配器 -->

<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/>

<!-- 视图解析器

解析jsp解析，默认使用jstl标签，classpath下的得有jstl的包

-->

<bean

class="org.springframework.web.servlet.view.InternalResourceViewResolver">

<!-- 配置jsp路径的前缀 -->

<property name="prefix" value="/jsp/"/>

<!-- 配置jsp路径的后缀 -->

<property name="suffix" value=".jsp"/>

</bean>

</beans>

（2）配置springmvc的事务控制的配置文件，先建一个applicationContext-transaction.xml配置事务，主要代码如下：

<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: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-3.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">

<!-- 事务管理器 -->

<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

<!-- 数据源 -->

<property name="dataSource" ref="dataSource"/>

</bean>

<!-- 通知 -->

<tx:advice id="txAdvice" transaction-manager="transactionManager">

<tx:attributes>

<!-- 传播行为 -->

<tx:method name="save*" propagation="REQUIRED"/>

<tx:method name="insert*" propagation="REQUIRED"/>

<tx:method name="delete*" propagation="REQUIRED"/>

<tx:method name="update*" propagation="REQUIRED"/>

<tx:method name="find*" propagation="SUPPORTS" read-only="true"/>

<tx:method name="get*" propagation="SUPPORTS" read-only="true"/>

</tx:attributes>

</tx:advice>

<!-- 切面 -->

<aop:config>

<aop:advisor advice-ref="txAdvice"

pointcut="execution(* service.*.*(..)) "/>//根据自己的service类自主修改

</aop:config>

</beans>

配置applicationContext-dao.xml文件，创建数据库的连接池，代码：

<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: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-3.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">

<!-- 加载配置文件 -->

<context:property-placeholder location="classpath:config/db.properties"/>

<!-- 数据库连接池 -->

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">

<property name="driverClassName" value="${jdbc.driver}"/>

<property name="url" value="${jdbc.url}"/>

<property name="username" value="${jdbc.username}"/>

<property name="password" value="${jdbc.password}"/>

<property name="maxActive" value="30"/>

<property name="maxIdle" value="5"/>

</bean>

<!-- 让spring管理sqlsessionfactory 使用mybatis和spring整合包中的 -->

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

<!-- 数据库连接池 -->

<property name="dataSource" ref="dataSource" />

<!-- 加载mybatis的全局配置文件 -->

<property name="configLocation" value="classpath:config/SqlMapConfig.xml" />

</bean>

<!-- mapper扫描器 -->

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

<property name="basePackage" value="mapper,mybatis"></property>

<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>

</bean>

</beans>

最后创建一个applicationContext-service.xml文件加载业务逻辑类，控制业务逻辑，主要代码如下：

<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: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-3.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">

<bean id="Userservice" class="service.UserserviceImpl"/>

</beans>

上面配置完之后，基本就差不多了，不过左后最重要的一步，就是要在web.xml文件里加载这些配置文件，主要代码如下：

<servlet>

<servlet-name>springmvc</servlet-name>

<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<init-param>

<param-name>contextConfigLocation</param-name>

<param-value>classpath:springmvc/springmvc.xml</param-value>

</init-param>

<load-on-startup>1</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>springmvc</servlet-name>

<url-pattern>*.action</url-pattern>

</servlet-mapping>

<context-param>

<param-name>contextConfigLocation</param-name>

<param-value>/WEB-INF/classes/mybatis/applicationContext-*.xml</param-value>

</context-param>

<listener>

<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

</listener>

<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>

上面就是mybatis和springmvc的配置步骤了，希望大家都好好练习，都是大神。