努力弥补不足中,一直在关注spring mvc mybatis 一直没动手整合过,参考如下链接http://blog.csdn.net/zhshulin/article/details/37956105#整合一遍,遇到了些问题,特此记录下。
1 spring: 轻量级的java开发框架,spring是一个轻量级控制反转(IOC)和面向切面编程(AOP)的容器.
2 spring mvc: 分离了控制器,模型对象,分派器及处理程序对象的角色。
3 mybatis:持久层框架,包括SQL MAPS ,DATA ACCESS OBJECTS。mybatis使用简单的xml或注解完成配置和原始映射,将接口和java对象映射成数据库中记录。
三者整合大致如下:
涉及到的相关jar:
Spring 4.1.2 RELEASE
Spring MVC 4.1.2 RELEASE
MyBatis 3.2.7
配置文件:
spring_mybatis配置文件
spring_mvc配置文件
资源文件:
db.propertis 数据库资源文件
log4j.properties 日志资源文件
整合步骤:
1)idea中创建maven-web项目
2)POM中增加依赖jar文件
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.lwj</groupId> <artifactId>ssm</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <name>ssm Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <!-- SPRING版本号 --> <spring.version>4.1.2.RELEASE</spring.version> <!-- mybatis版本号 --> <mybatis.version>3.2.7</mybatis.version> <!-- log4j日志版本 --> <slf4j.version>1.7.7</slf4j.version> <log4j.version>1.2.17</log4j.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.10</version> <scope>test</scope> </dependency> <!-- spring核心包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-oxm</artifactId> <version>3.2.4.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <!-- mybatis核心包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <!-- mybatis/spring包--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.2</version> </dependency> <!-- Java ee jar包--> <dependency> <groupId>javax</groupId> <artifactId>javaee-api</artifactId> <version>7.0</version> </dependency> <!-- 数据库链接jar包 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.34</version> </dependency> <!-- 导入dbcp包,用来在appliactionContext.xml中配置数据库--> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.4</version> </dependency> <!-- jstl标签类 --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- 日志文件管理包 --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j.version}</version> </dependency> <!-- 格式化日志输出 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.1.46</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> </dependency> <!-- log end --> <!-- 映入json--> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>1.9.13</version> </dependency> <!-- 上传文件依赖包--> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version>1.10</version> </dependency> </dependencies> <build> <finalName>ssm</finalName> </build> </project>3) 整合spring与mybatis--junit进行测试
创建数据库属性文件
创建spring-mybatis.xml配置文件:主要涉及到自动扫描,自动注入,配置数据源等信息具体内容如下:
<?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-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 自动扫描 --> <context:component-scan base-package="com.lwj"/> <!-- 引入资源文件 --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:db.properties"/> </bean> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${driver}"/> <property name="url" value="${url}"/> <property name="username" value="${username}"/> <property name="password" value="${password}"/> <!-- 初始化连接池大小 --> <property name="initialSize" value="${initialSize}"/> <!-- 最大连接数 --> <property name="maxActive" value="${maxActive}"/> <!-- 连接池最大空闲 --> <property name="maxIdle" value="${maxIdle}"/> <!-- 最小空闲 --> <property name="minIdle" value="${minIdle}"/> <!-- 最大等待时间 --> <property name="maxWait" value="${maxWait}"/> </bean> <!-- spring与mybatis整合,不需要配置mybatis的映射文件,自动扫描即可 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <!-- 自动扫描mapping文件--> <property name="mapperLocations" value="classpath:com/lwj/mapping/*.xml"/> </bean> <!-- 配置dao路径 spring会自动查找其下的类--> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.lwj.dao"/> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> </bean> <!-- 事务管理transaction manager--> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> </beans>
4)编写实体类/mapping.xml/dao---可以利用MyBatis Generator自动生成
若省略mapper接口,dao直接映射mapping.xml文件,则dao的文件名字要与mapping.xml文件名字相同否则映射报错no statment
5)编写service、serviceImpl
6) 编写测试类(junit4版本大于4.9否则junit报错)
@RunWith(SpringJUnit4ClassRunner.class)//表示继承了SpringJunit4ClassRunner类
@ContextConfiguration(locations = {"classpath:spring-mybatis.xml"})
public class TestCase {
private static Logger logger = Logger.getLogger(TestCase.class);
@Resource
private UserService userService = null;
@Test
public void testMybatis(){
Integer id =01;
UserEntity userEntity = userService.selectByPrimaryKey(id);
logger.info(JSON.toJSONString(userEntity));
}
}
运行测试用例,看到查询结果则证明spring+mybatis配置成功。