1、maven项目
src
main
java java源文件
resources 配置文件
beans.xml spring配置文件
<?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:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd"> <context:component-scan base-package="com.entity"/> <!-- 引入配置文件 --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:db.properties"/> </bean> <!-- 使用spring jdbc中的类建立数据源 --> <bean id="ds" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="${db.driver}"/> <property name="url" value="${db.url}"/> <property name="username" value="${db.user}"/> <property name="password" value="${db.password}"/> </bean> <!-- SqlSessionFactory --> <bean id="sf" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="ds"/> <!-- com.entity.Student 可以写 sutdent --> <property name="typeAliasesPackage" value="com.entity"/> <property name="mapperLocations" value="classpath:com/entity/mapper/*Mapper.xml"/> </bean> <!-- SqlSession --> <bean id="session" class="org.mybatis.spring.SqlSessionTemplate"> <constructor-arg index="0" ref="sf" /> </bean> <!--创建数据映射器,数据映射器必须为接口 --> <!-- <bean id="ssm" class="org.mybatis.spring.mapper.MapperFactoryBean"> <property name="mapperInterface" value="com.entity.mapper.StudentMapper" /> <property name="sqlSessionFactory" ref="sf" /> </bean> --> <!-- 扫描mapper包 自动在spring中生成 xxxxMapper bean --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.entity.mapper"/> <property name="sqlSessionFactoryBeanName" value="sf"/> </bean> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="ds"/> </bean> <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"> <property name = "dataSource" ref="ds"/> </bean> <tx:annotation-driven transaction-manager="transactionManager" /> </beans>
db.properties 文件
db.driver=com.mysql.jdbc.Driver db.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8&useSSL=true db.user=root db.password=root(输入自己的mysql密码)
test
java 测试源文件
pom.xml
<?xml version="1.0" encoding="UTF-8"?> <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/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.fz</groupId> <artifactId>springmybatis</artifactId> <version>1.0</version> <packaging>jar</packaging> <properties> <java-version>1.7</java-version> <aspectj.version>1.6.11</aspectj.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <maven.compiler.encoding>UTF-8</maven.compiler.encoding> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.16.14</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.3.6.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.3.6.RELEASE</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.2</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.40</version> </dependency> </dependencies> <build> <finalName>${project.artifactId}</finalName> <sourceDirectory>src/main/java</sourceDirectory> <testSourceDirectory>src/test/java</testSourceDirectory> <resources> <resource> <directory>src/main/java</directory> <includes> <include>**/*.xml</include> </includes> </resource> <resource> <directory>src/main/resources</directory> <includes> <include>**/*.xml</include> <include>**/*.properties</include> </includes> </resource> </resources> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.3</version> <configuration> <source>${java-version}</source> <target>${java-version}</target> <encoding>${project.build.sourceEncoding}</encoding> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-surefire-plugin</artifactId> <version>2.12.4</version> <configuration> <skipTests>true</skipTests> </configuration> </plugin> </plugins> </build> </project>
2、com.entity.Student 实体类
package com.entity; import lombok.Data; /** * Created by webrx on 2017/2/15 0015 11:40. */ @Data public class Student { private int id; private String name; private String address; }
3、mybatis mapper接口 及mapper配置文件 路径:/src/main/java/com/entity/mapper/StudentMapper.java
package com.entity.mapper; import com.entity.Student; import org.apache.ibatis.annotations.Param; import org.apache.ibatis.annotations.Select; import java.util.List; /** * Created by webrx on 2017/2/15 0015 11:52. */ public interface StudentMapper { @Select("select * from student where id = #{id}") public Student findById(int id); @Select("select * from student where 1=1 order by id desc") public List<Student> queryAll(); public int insert(Student student); public int save(@Param("name") String name, @Param("address") String address); public int add(String name,String address); public List<Student> shows(); }
mapper文件配置 文件路径:src/main/java/com/entity/mapper/StudentMapper.xml
<?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.entity.mapper.StudentMapper"> <insert id="insert" parameterType="student"> insert into student values(null,#{name},#{address}) </insert> <insert id="save" parameterType="string"> insert into student values(null,#{name},#{address}) </insert> <select id="shows" resultType="student"> select * from student </select> <insert id="add" parameterType="string"> insert into student values(null,#{0},#{1}) </insert> </mapper>
4、测试主程序
import com.entity.Student; import com.entity.StudentDAO; import com.entity.mapper.StudentMapper; import com.entity.mapper.UserMapper; import org.junit.Test; import org.springframework.context.support.ClassPathXmlApplicationContext; import java.sql.SQLException; import java.util.List; import java.util.Map; /** * Created by webrx on 2017/2/15 0015 11:41. */ public class Demo { @Test public void xx(){ ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml"); StudentMapper sm = ctx.getBean("studentMapper",StudentMapper.class); //sm.save("赵七","北京"); sm.add("dd","zz111"); //Student st = new Student(); //st.setName("李四六"); //st.setAddress("郑州文化路"); //sm.insert(st); //System.out.println(sm.queryAll().size()); System.out.println(sm.shows().size()); ctx.close(); } @Test public void cc(){ ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml"); for(String s : ctx.getBeanDefinitionNames()){ System.out.println(s); } System.out.println("----------------------------------------------------"); StudentMapper sm = ctx.getBean("studentMapper",StudentMapper.class); for(Student st : sm.queryAll()){ System.out.println(st.getName()); } System.out.println("----------------------------------------------------"); StudentDAO sdao = ctx.getBean("studentdao",StudentDAO.class); for(Student st : sdao.query()){ System.out.println(st.getName()); } System.out.println("----------------------------------------------------"); System.out.println(sm==sdao.getSm()); UserMapper um = ctx.getBean("userMapper",UserMapper.class); for(Map<String,Object> ss : um.query()){ System.out.println(ss.get("name")); } ctx.close(); } @Test public void aa(){ ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml"); StudentMapper sm = ctx.getBean("sm",StudentMapper.class); List<Student> sts = sm.queryAll(); System.out.println(sts.size()); for(Student s : sts){ System.out.println(s.getAddress()); } ctx.close(); } @Test public void tt() throws SQLException { ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml"); //SqlSessionFactory sf = ctx.getBean("sf",SqlSessionFactory.class); StudentDAO sd = ctx.getBean("studentdao",StudentDAO.class); Student myst = sd.queryById(8); System.out.println(myst.getName()); System.out.println(myst.getAddress()); System.out.println("------------------------"); List<Student> sts = sd.query(); for(Student s : sts){ System.out.println(s.getName()); } ctx.close(); } }