SpringMVC与MyBatis整合简介

1.新建web项目,并新建各个包,引入spring框架
编写实体类以及mapper接口及mapper.xml配置文件
实例StudentMapper接口:

	public interface StudentMapper {
			public int save(Student st);
			public int update(Student st);
			public int delById(Integer sid);
			public Student findById(Integer sid);
			public List<Student> findPageAll(PageBean pb);
			public int findMaxPage();
	 }		

StudentMappe.xml配置文件:
id对应StudentMappe接口中的方法名 ,
parameterTyp是此方法的传参类型
在查找方法中resultType是返回类型

<?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.mapper.StudentMapper">
	<insert id="save" parameterType="com.po.Student">
		insert into student(sname,sex,address,birthday,classid)
		values(#{sname},#{sex},#{address},#{birthday},#{classid})
	</insert>
	<update id="update" parameterType="com.po.Student">
		update student set sname=#{sname},
		sex=#{sex},
		address=#{address},
		birthday=#{birthday},
		classid=#{classid} where sid=#{sid}
	</update>
	<delete id="delById" parameterType="java.lang.Integer">
		delete from student where sid=#{sid}
	</delete>
	<select id="findById" parameterType="java.lang.Integer" resultType="com.po.Student">
		select * from student where sid=#{sid}
	</select>
	<select id="findPageAll" parameterType="com.bean.PageBean" resultType="com.po.Student">
		select s.*,c.cname from student s,clazz c where 1=1 
		and s.classid=c.cid 
		order by sid limit ${(page-1)*rows},${rows}
	</select>	
	<select id="findMaxPage" resultType="int">
		select count(*) from student where 1=1
	</select>
</mapper>

2.在src目录下新建一个mybatis-config.xml的xml文件内容如下:

<?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>
	<mappers>
		<mapper resource="com/mapper/StudentMapper.xml" />
		<mapper resource="com/mapper/ClazzMapper.xml" />
	</mappers>
</configuration>

3.编写你的业务逻辑以及每个action类并在每个mapper接口注释为@Service如图,StudentMapper

4.在编写好的业务类前加上注释@Service@Transactional,并在声明的mapper前加上@Autowired

5.在action类前加上@Controller注解,并在所声明的biz类前加上@Autowired,
注意:声明的biz必须为借口式声明如:private IStudentBiz studentBiz;
在每个方法前加上@RequestMapping(value="save_Student.do")相当于form表单中的action,return默认使用请求转发方式,若需要重定向,则在路径前加上redirect:,示例:return "redirect:fail.jsp"

6.applicationContext.xml配置文件的书写:

<?xml version="1.0" encoding="UTF-8"?>
<beans
	xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="
		http://www.springframework.org/schema/beans 
		http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
		http://www.springframework.org/schema/context 
		http://www.springframework.org/schema/context/spring-context-3.0.xsd
		http://www.springframework.org/schema/aop
		http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
		http://www.springframework.org/schema/tx
		http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
		"
		default-autowire="byName"
		>
	<!-- 配置注解注入的支持 -->
	<context:annotation-config></context:annotation-config>
	<!-- <context:component-scan base-package="com.dao"></context:component-scan> -->
	<context:component-scan base-package="com.biz"></context:component-scan>
	<context:component-scan base-package="com.action"></context:component-scan>
	<bean id="dataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName"
			value="com.mysql.jdbc.Driver">
		</property>
		<property name="url" value="jdbc:mysql://localhost:3306/mydb"></property>
		<property name="username" value="root"></property>
		<property name="password" value="java"></property>
	</bean>
	<!-- 创建SqlSessionFactory，同时指定数据源 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="configLocation" value="classpath:mybatis-config.xml"></property>
        <property name="dataSource" ref="dataSource" />
    </bean>
	<!-- 在mapper包扫描所有的sql映射文档xxxMapper.xml文件 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.mapper" />
    </bean>
	<!-- JDBC事务管理 -->
	<bean id="txmanager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource"></property>
	</bean>
	<tx:annotation-driven transaction-manager="txmanager"/>		
</beans>

7.然后将applicationContext.xml复制一份并改名为spring-servlet.xml放在WEB-INF文件夹下,配置内容如下

<?xml version="1.0" encoding="UTF-8"?>
<beans
	xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="
		http://www.springframework.org/schema/beans 
		http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
		http://www.springframework.org/schema/context 
		http://www.springframework.org/schema/context/spring-context-3.0.xsd
		http://www.springframework.org/schema/aop
		http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
		http://www.springframework.org/schema/tx
		http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
		"
		default-autowire="byName"
		>
	<!-- 配置注解注入的支持 -->
	<context:annotation-config></context:annotation-config>
	<context:component-scan base-package="com.action"></context:component-scan>
</beans>:

8.接着是web.xml的配置:

 <?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee   http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
 <!-- ******************spring容器的启动配置，替代ApplicationContext对象的创建************* -->
 <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>
 <!-- springMVC中文转码过滤器配置********************************* -->
 <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>
 <!-- ************************************************ 
 springmvc转发的servlet配置*********************** -->
 <servlet>
  <servlet-name>springmvc</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <init-param>
   <param-name>springmvc</param-name>
   <param-value>/WEB-INF/springmvc-servlet.xml</param-value>
  </init-param>
 </servlet>
 <servlet-mapping>
  <servlet-name>springmvc</servlet-name>
  <url-pattern>*.do</url-pattern>
 </servlet-mapping>
 <!-- ************************************************** -->
 <welcome-file-list>
  <welcome-file>index.jsp</welcome-file>
 </welcome-file-list>
 <login-config>
  <auth-method>BASIC</auth-method>
 </login-config>
</web-app>

9.最后新建一个名为log4j.properties的日志文件

 #All level less than INFO will be logged
log4j.rootLogger=info, stdout

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss}  %m%n

ok!.配置完成!