Spring《Spring+SpringMVC+Mybatis搭建二》

在实现了controller之后，现在需要想的是怎么把在容器中加载的Service注入到controller中，这样就可以实现一系列的操作了。

首先要在在spring-mybatis.xml配置Service实现类的实体bean（注：这里的bean要用service的实现类）

再这么写就可以找到了（注：这里用的是service接口）

如果你这样配置完成后仍然不好使，那很可能就是你的MVC配置文件出了问题，注意，我之前加载controller的时候用的是扫描器扫进去的，这样他就会连同注释一起识别。但是如果你的controller用的是bean标签加载的话，那么这样配置是不好用的，但是还是有解决方法，只不过很麻烦，就不推荐了。

在MVC配置文件还可以进行一个优化，那就是在我们加载适配器和映射器的时候用的是注释方法加载，其实完全可以用一句话代替，这句话不仅包含适配器和映射器的加载，还包含一些其他东西。

<mvc:annotation-driven />

最后发一下代码：

spring-mybatis.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:util="http://www.springframework.org/schema/util" xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:cache="http://www.springframework.org/schema/cache" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	   http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
	   http://www.springframework.org/schema/aop
	   http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
	   http://www.springframework.org/schema/context
	   http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.3.xsd
	   http://www.springframework.org/schema/tx  
       http://www.springframework.org/schema/tx/spring-tx.xsd  
       http://www.springframework.org/schema/cache  
       http://www.springframework.org/schema/cache/spring-cache.xsd
	   ">
	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
		  destroy-method="close">
		<property name="driverClass" value="com.mysql.jdbc.Driver" />
		<property name="jdbcUrl" value="jdbc:mysql://127.0.0.1:3306/myblogdb" />
		<property name="user" value="root" />
		<property name="password" value="a635226968" />
	</bean>
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource"></property>
		<property name="configLocation" value="classpath:MyBatisConfig.xml"></property>
		<property name="mapperLocations">
			<array value-type="java.lang.String">
				<value>classpath:com/web/blog/map/*.xml</value>
			</array>
		</property>
	</bean>
	<!-- <bean id="sqlSession" factory-bean="sqlSessionFactory" factory-method="openSession"></bean> -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="com/web/blog/map"></property>
		<property name="SqlSessionFactory" ref="sqlSessionFactory"></property>
	</bean>
	<!--Service-->
	<bean id="messageService" class="com.web.blog.service.realize.MessageServiceReal"></bean>

	
</beans>

applicationContext-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-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.xsd
    http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
	<!-- 将所有的controller都扫描进去 前提是用的注释配置-->
	<context:component-scan base-package="com.web.blog.controller"></context:component-scan>
	<mvc:annotation-driven />
	 <!-- <bean class="com.web.blog.controller.TestController"></bean> -->
	<!-- 映射器
	<bean
		class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping" /> -->
	<!-- 适配器 
	<bean
		class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter" />-->
	<!-- 视图解析器 jsp -->
	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver" />
	
	<!-- 拦截器 
	<mvc:interceptors>
		<mvc:interceptor>
			<mvc:mapping path="/**" />
			<bean class="com.web.student.w.TestHandlerInterceptor"></bean>
		</mvc:interceptor>
	</mvc:interceptors>-->
</beans>

MyBatisConfig.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>
<!--  lazyloading
	<settings>
		<setting name="lazyLoadingEnabled" value="true" />
		<setting name="aggressiveLazyLoading" value="true" />
		<setting name="cacheEnabled" value="false" />
	</settings>
-->
<!-- 缩写  -->
	<typeAliases>
		<package name="com/web/blog/po" />
	</typeAliases>

</configuration>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://java.sun.com/xml/ns/javaee"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
	version="3.0">
	<display-name>dreamblog</display-name>
	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
		<welcome-file>index.htm</welcome-file>
		<welcome-file>index.jsp</welcome-file>
		<welcome-file>default.html</welcome-file>
		<welcome-file>default.htm</welcome-file>
		<welcome-file>default.jsp</welcome-file>
	</welcome-file-list>

	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:spring-mybatis.xml</param-value>
	</context-param>
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	
	<servlet>
		<servlet-name>mvc_servlet</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:applicationContext-mvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>mvc_servlet</servlet-name>
		<url-pattern>*.action</url-pattern>
	</servlet-mapping>
</web-app>

Spring《Spring+SpringMVC+Mybatis搭建二》

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