spring-springmvc-mybaties三大框架整合
1、目录结构
2、pom文件
<dependency> <!--3.0的junit是使用编程的方式来进行测试，而junit4是使用注解的方式来运行junit--> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <!--补全项目依赖--> <!--1.日志 java日志有:slf4j,log4j,logback,common-logging slf4j:是规范/接口 日志实现:log4j,logback,common-logging 使用:slf4j+logback --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.12</version> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-core</artifactId> <version>1.1.1</version> </dependency> <!--实现slf4j接口并整合--> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>1.1.1</version> </dependency> <!--数据库--> <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.1</version> </dependency> <!-- 添加oracle驱动依赖 --> <dependency> <groupId>com.oracle</groupId> <artifactId>ojdbc14</artifactId> <version>10.2.0.4.0</version> </dependency> <!--2.dao框架:MyBatis依赖--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.3.0</version> </dependency> <!--mybatis自身实现的spring整合依赖--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.3</version> </dependency> <!--3.Servlet web相关依赖--> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> <version>1.1.2</version> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.5.4</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> </dependency> <!--4:spring依赖--> <!--1)spring核心依赖--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.1.7.RELEASE</version> </dependency> <!--2)spring dao层依赖--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>4.1.7.RELEASE</version> </dependency> <!--3)springweb相关依赖--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.1.7.RELEASE</version> </dependency> <!--4)spring test相关依赖--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency>
3、spring-dao.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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!--配置整合mybatis过程 1.配置数据库相关参数--> <context:property-placeholder location="classpath:jdbc.properties"/> <!--2.数据库连接池--> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <!--配置连接池属性--> <property name="driverClass" value="${jdbc.driver}" /> <!-- 基本属性 url、user、password --> <property name="jdbcUrl" value="${jdbc.url}" /> <property name="user" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <!--c3p0私有属性--> <property name="maxPoolSize" value="30"/> <property name="minPoolSize" value="10"/> <!--关闭连接后不自动commit--> <property name="autoCommitOnClose" value="false"/> <!--获取连接超时时间--> <property name="checkoutTimeout" value="10000"/> <!--当获取连接失败重试次数--> <property name="acquireRetryAttempts" value="2"/> </bean> <!--约定大于配置--> <!--３.配置SqlSessionFactory对象--> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!--往下才是mybatis和spring真正整合的配置--> <!--注入数据库连接池--> <property name="dataSource" ref="dataSource"/> <!--配置mybatis全局配置文件:mybatis-config.xml--> <property name="configLocation" value="classpath:mybaties-config.xml"/> <!--扫描entity包,使用别名,多个用;隔开--> <property name="typeAliasesPackage" value="com.test.pojo"/> <!--扫描sql配置文件:mapper需要的xml文件--> <property name="mapperLocations" value="classpath:mapper/*.xml"/> </bean> <!--４:配置扫描Dao接口包,动态实现DAO接口,注入到spring容器--> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <!--注入SqlSessionFactory--> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> <!-- 给出需要扫描的Dao接口--> <property name="basePackage" value="com.test.dao"/> </bean> </beans>
4、spring-service.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:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!--扫描service包下所有使用注解的类型--> <context:component-scan base-package="com.test.service"/> <!--配置事务管理器--> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <!--注入数据库连接池--> <property name="dataSource" ref="dataSource"/> </bean> <bean id="date" class="java.util.Date"></bean> <!--配置基于注解的声明式事务 默认使用注解来管理事务行为--> <tx:annotation-driven transaction-manager="transactionManager"/> </beans>
5、spring-web.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:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!--配置spring mvc--> <!--1,开启springmvc注解模式 a.自动注册DefaultAnnotationHandlerMapping,AnnotationMethodHandlerAdapter b.默认提供一系列的功能:数据绑定，数字和日期的[email protected],@DateTimeFormat c:xml,json的默认读写支持--> <mvc:annotation-driven/> <!--2.静态资源默认servlet配置--> <!-- 1).加入对静态资源处理：js,gif,png 2).允许使用 "/" 做整体映射 --> <mvc:default-servlet-handler/> <!--3：配置JSP 显示ViewResolver--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/> <property name="prefix" value="/WEB-INF/view/"/> <property name="suffix" value=".jsp"/> </bean> <!--4:扫描web相关的bean--> <context:component-scan base-package="com.test.controller"/> <mvc:resources mapping="/**/*.html" location="/"/> <mvc:resources mapping="/**/*.js" location="/"/> <mvc:resources mapping="/**/*.css" location="/"/> <mvc:resources mapping="/**/*.png" location="/"/> <mvc:resources mapping="/**/*.gif" location="/"/> </beans>
6、mybaties-config.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> <!--配置全局属性--> <settings> <!--使用jdbc的getGeneratekeys获取自增主键值--> <!-- <setting name="useGeneratedKeys" value="true"/>--> <!--使用列别名替换列名 默认值为true select name as title(实体中的属性名是title) form table; 开启后mybatis会自动帮我们把表中name的值赋到对应实体的title属性中 --> <setting name="useColumnLabel" value="true"/> <!--开启驼峰命名转换Table:create_time到 Entity(createTime)--> <setting name="mapUnderscoreToCamelCase" value="true"/> </settings> </configuration>
7、UserMapper.xml
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.test.dao.UserMapper"> <!--目的:为dao接口方法提供sql语句配置 即针对dao接口中的方法编写我们的sql语句--> <select id="getAll" resultType="com.test.pojo.User"> select * from t_users </select> <select id="getUserById" resultType="com.test.pojo.User" parameterType="String"> select * from t_users where id=#{id} </select> <insert id="saveUsers" parameterType="com.test.pojo.User"> insert into t_users(id,name,age,password) values(#{id},#{name},#{age},#{password}) </insert> <delete id="deleteUser" parameterType="String"> delete from t_users where id=#{id} </delete> <update id="updateUser" parameterType="com.test.pojo.User"> update t_users set name=#{name},age=#{age},password=#{password} where id=#{id} </update> </mapper>
8、jdbc.properties
jdbc.driver=oracle.jdbc.driver.OracleDriver jdbc.url=jdbc:oracle:thin:@127.0.0.1:1521:test jdbc.username=test jdbc.password=root
9、java代码
dao层接口
public interface UserMapper { List<User> getAll(); void saveUsers(User user); void updateUser(User user); void deleteUser(String id); User getUserById(String id); }
service层实现类
@Service("userService") public class UserServiceImpl implements UserService{ @Autowired UserMapper userMapper; public List<User> getAll() { return userMapper.getAll(); } public void save(User user) { userMapper.saveUsers(user); } public void delete(String id) { userMapper.deleteUser(id); } public void update(User user) { userMapper.updateUser(user); } public User getUserById(String id) { return userMapper.getUserById(id); } }
service层接口
*/ @Transactional public interface UserService { List<User> getAll(); void save(User user); void delete(String id); void update(User user); User getUserById(String id); }
测试方法
@RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations="classpath:spring/spring-*.xml") public class TestService { @Resource Date date; @Resource UserService userService; @Test public void testDate(){ System.out.println(date); } @Test public void testGetAll(){ List<User> list=userService.getAll(); for(User user:list){ System.out.println(user.getName()); } } @Test public void testGetUserById(){ System.out.println(userService.getUserById("1").getName()); } @Test public void testSave(){ User user=new User(); user.setId("1"); user.setName("test"); user.setAge(11); user.setPassword("pass"); userService.save(user); } @Test public void testDelete(){ userService.delete("1"); } @Test public void testUpdate(){ User user=userService.getUserById("2"); user.setName("hello"); userService.update(user); } }
10、遇到问题
java/lang/UnsupportedClassVersionError: java/lang/Object : Unsupported major.minor version 52.0
junit4.12支持jdk1.7及以上的版本，出现这个错误的主要原因就是jdk编译版本和运行版本不一致造成的