标签：value http c3p0 imp snapshot perl lse aspect expr
在搭建项目之前，创建数据库，以及数据库表，我用的数据库是mysql 5.6.11
创建数据库语句为：
CREATE TABLE `orders` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `company_id` varchar(255) DEFAULT NULL, `charge` decimal(18,4) NOT NULL DEFAULT ‘0.0000‘, `state` int(11) DEFAULT ‘0‘, `remark` varchar(500) DEFAULT NULL, PRIMARY KEY (`id`) );
搭建项目需要以下的包，
mybatis-3.2.3-SNAPSHOT.jar
mybatis-spring-1.2.0.jar
mysql-connector-java-5.1.24-bin.jar
c3p0-0.9.1.2.jar
commons-logging-1.1.1.jar
spring-aop-3.2.2.RELEASE.jar
spring-aspects-3.2.2.RELEASE.jar
spring-beans-3.2.2.RELEASE.jar
spring-context-3.2.2.RELEASE.jar
spring-context-support-3.2.2.RELEASE.jar
spring-core-3.2.2.RELEASE.jar
spring-expression-3.2.2.RELEASE.jar
spring-jdbc-3.2.2.RELEASE.jar
spring-tx-3.2.2.RELEASE.jar
好了，简单的准备工作已经准备就绪，现在来创建一个java项目或者java web项目
首先，创建dao接口类。
package com.yunix.dao; public interface IOrderDao { public int getOrderCount(); }
然后在com.yunix.dao.impl包下创建OrderDaoMapper.xml
内容为：
<?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.yunix.dao.IOrderDao"> <select id="getOrderCount" resultType="int"> <![CDATA[ select count(1) from orders ]]> </select> </mapper>
其中namespace为dao接口，id为dao接口中的方法。
创建service接口：
package com.yunix.service; public interface IOrderService { public int getOrderCount(); }
创建service实现类：
package com.yunix.service.impl; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.yunix.dao.IOrderDao; import com.yunix.service.IOrderService; @Service public class OrderService implements IOrderService { @Autowired private IOrderDao orderDao; @Override public int getOrderCount() { return orderDao.getOrderCount(); } }
在src文件夹下创建applicationCntext.xml文件
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" default-autowire="byName" 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-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.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://192.168.1.5:3306/test" /> <property name="user" value="yunix" /> <property name="password" value="123456" /> <property name="initialPoolSize" value="1" /> <property name="minPoolSize" value="0" /> <property name="maxPoolSize" value="10" /> <property name="acquireIncrement" value="5" /> <property name="maxIdleTime" value="10" /> <property name="maxStatements" value="0" /> </bean> <bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate"> <constructor-arg index="0" ref="sqlSessionFactory" /> </bean> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="mapperLocations" value="classpath*:com/yunix/dao/impl/*Mapper.xml" /> </bean> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.yunix.dao" /> </bean> <context:component-scan base-package="com.yunix.service" /> </beans>
以及log4j.properties
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] -%m%n
log4j.logger.com.ibatis=debug
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=debug
log4j.logger.com.ibatis.common.jdbc.ScriptRunner=debug
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=debug
log4j.logger.java.sql.Connection=debug
log4j.logger.java.sql.Statement=debug
log4j.logger.java.sql.PreparedStatement=debug,stdout
至此，项目搭建完成。
到底搭建成不成功，写一个测试类进行简单测试一下。我写的比较简单，写了个main方法进行了测试，测试代码如下：
package test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import com.yunix.service.IOrderService; public class MyBatisTest { public static void main(String[] args) { @SuppressWarnings("resource") ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml"); IOrderService orderService = (IOrderService)context.getBean("orderService"); int count = orderService.getOrderCount(); System.out.println("count:" + count); } }
运行结果为：
spring3.2.2+mybatis3.2.3+c3p0项目整合
标签：value http c3p0 imp snapshot perl lse aspect expr
原文地址：https://www.cnblogs.com/wsy0202/p/11337249.html
