項目結構:
1. applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p"
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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
<!-- 開啓掃包 -->
<context:component-scan base-package="com.spring.mvc" />
<!-- 讀取properties文件 -->
<context:property-placeholder location="classpath:db.properties" />
<!-- 配置數據源 -->
<bean name="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${jdbc.driver}"></property>
<property name="url" value="${jdbc.url}"></property>
<property name="username" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
<property name="maxActive" value="10" />
<property name="maxIdle" value="5" />
</bean>
<bean name="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 配置mybatis配置文件位置 -->
<property name="configLocation" value="classpath:sqlMapConfig.xml"></property>
<!-- 數據源 -->
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- mapper代理(掃包方式配置代理)
該配置可以實現在service層使用mapper接口對象
-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.spring.mvc.mapper"></property>
</bean>
<!-- 事務管理器 -->
<bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 事務註解 -->
<tx:annotation-driven transaction-manager="transactionManager"/>
</beans>
2. springmvc.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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<!-- 註解掃描 -->
<context:component-scan base-package="com.spring.mvc" />
<!-- <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean>
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean> -->
<!-- 配置mvc:
包含RequestMappingHandlerMapping和RequestMappingHandlerAdapter
-->
<mvc:annotation-driven />
<!-- 配置前綴、後綴 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/view/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
3. sqlMapConfig.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">
<!-- 該文件可只要文件頭,內容爲空 -->
<configuration>
<!-- 配置簡名 -->
<typeAliases>
<package name="com.spring.mvc.entity"/>
</typeAliases>
</configuration>
4. db.properties
jdbc.driver=oracle.jdbc.driver.OracleDriver
jdbc.url=jdbc:oracle:thin:@127.0.0.1:1521:orcl
jdbc.username=scott
jdbc.password=302030
5. Controller.java
@Controller
public class HelloWorldController {
private EmpService empService;
@Autowired
public void setEmpService(EmpService empService) {
this.empService = empService;
}
}
6. Mapper
package com.spring.mvc.mapper;
import java.util.List;
import org.apache.ibatis.annotations.Select;
import com.spring.mvc.entity.Emp;
public interface EmpMapper {
@Select("SELECT * FROM EMP")
List<Emp> findAll();
}
7. ServiceImpl
@Service
public class EmpServiceImpl implements EmpService {
@Autowired
private EmpMapper empMapper;
@Override
public List<Emp> findAll() {
return empMapper.findAll();
}
}