Spring与MyBatis框架整合依赖的jar包
- junit-4.9.jar
- mybatis-3.4.1.jar
- mysql-connector-java-5.1.42.jar
- asm-4.2.jar
- cglib-3.1.jar
- commons-logging-1.2.jar
- log4j-1.2.17.jar
- log4j-api-2.7.jar
- log4j-core-2.7.jar
- slf4j-api-1.7.21.jar
- slf4j-log4j12-1.7.21.jar
- mybatis-ehcache-1.1.0.jar
- ehcache-core-2.6.6.jar
- spring-core-4.2.1.RELEASE.jar
- spring-context-4.2.1.RELEASE.jar
- spring-beans-4.2.1.RELEASE.jar
- spring-aop-4.2.1.RELEASE.jar
- aopalliance-1.0.jar
- spring-aspects-4.2.5.RELEASE.jar
- aspectjweaver-1.8.9.jar
- spring-expression-4.2.1.RELEASE.jar
- spring-tx-4.2.1.RELEASE.jar
- c3p0-0.9.5.2.jar
- spring-jdbc-4.2.1.RELEASE.jar
- spring-orm-4.2.1.RELEASE.jar
- spring-web-4.2.1.RELEASE.jar
- mybatis-spring-1.3.0.jar
- commons-dbcp2-2.0.1.jar
Maven配置文件pom.xml如下
<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>cn.hurrican</groupId>
<artifactId>springmybatis</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>springmybatis Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.9</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.42</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.ow2.asm/asm -->
<dependency>
<groupId>org.ow2.asm</groupId>
<artifactId>asm</artifactId>
<version>4.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/cglib/cglib -->
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>3.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-logging/commons-logging -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/log4j/log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-api -->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.7</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.7</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.21</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-log4j12 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.21</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis.caches/mybatis-ehcache -->
<dependency>
<groupId>org.mybatis.caches</groupId>
<artifactId>mybatis-ehcache</artifactId>
<version>1.1.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/net.sf.ehcache/ehcache-core -->
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache-core</artifactId>
<version>2.6.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.2.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.2.1.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-beans -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.2.1.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-aop -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>4.2.1.Release</version>
</dependency>
<!-- https://mvnrepository.com/artifact/aopalliance/aopalliance -->
<dependency>
<groupId>aopalliance</groupId>
<artifactId>aopalliance</artifactId>
<version>1.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-aspects -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>4.2.5.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.9</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-expression -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>4.2.1.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-tx -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>4.2.1.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.2.1.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-orm -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>4.2.1.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.2.1.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<!-- MyBatis 和 Spring 框架整合依赖的jar包 -->
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<!-- 导入dbcp的jar包,用来在spring-mybatis.xml中配置数据库 -->
<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-dbcp2 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-dbcp2</artifactId>
<version>2.0.1</version>
</dependency>
</dependencies>
<build>
<finalName>conference</finalName>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
创建实体类及接口及其mapper.xml映射文件
UserinfoDao.java
package modeldao;
import beans.UserInfo;
import org.apache.ibatis.annotations.Result;
import org.apache.ibatis.annotations.Results;
import org.apache.ibatis.annotations.Select;
public interface UserinfoDao {
void addUser(UserInfo user);
@Select("select id,username,pwd,email from account where id = #{id}")
@Results(id = "user", value = {
@Result(property = "id", column = "id", id = true),
@Result(property = "username", column = "username"),
@Result(property = "pwd", column = "pwd"),
@Result(property = "email", column = "email")
})
UserInfo queryUserInfoById(Integer id);
}
UserinfoDao.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="modeldao.UserinfoDao">
<insert id="addUser" parameterType="UserInfo"
useGeneratedKeys="true" keyProperty="id">
insert into account(username, pwd, email)
values(#{username},#{pwd},#{email})
</insert>
</mapper>
SecurityGuaranteeDao.java
package modeldao;
import beans.SecurityGuarantee;
import org.apache.ibatis.annotations.Result;
import org.apache.ibatis.annotations.Results;
import org.apache.ibatis.annotations.Select;
import java.util.Set;
public interface SecurityGuaranteeDao {
@Select("select secturityid,question,answer from security_guarantee where user_id = #{user.id}")
@Results(id = "entry", value = {
@Result(property = "securityid", column = "secturityid"),
@Result(property = "question", column = "question"),
@Result(property = "answer", column = "answer")
})
Set<SecurityGuarantee> querySecurityGuaranteeByUserId(Integer id);
}
UserInfo.java
package beans;
import java.io.Serializable;
import java.util.Set;
public class UserInfo implements Serializable{
private Integer id;
private String username;
private String email;
private String pwd;
private Set<WorkInfo> workexperience;
public UserInfo(String username, String email, String pwd) {
this.username = username;
this.email = email;
this.pwd = pwd;
}
public UserInfo()
{
this.id = 0;
}
//此处省略getter方法和setter方法
@Override
public String toString() {
return new StringBuffer().append("id:\t").append(this.id)
.append("\nusername:\t").append(this.username).append("\n").toString();
}
}
SecurityGuarantee.java
package beans;
/**
* Created by NewObject on 2017/8/15.
*/
public class SecurityGuarantee {
private Integer securityid;
private String question;
private String answer;
private UserInfo user;
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
builder.append("securityGuaranteeId:\t").append(this.securityid)
.append("\nquestion:\t").append(this.question)
.append("\nanswer:\t").append(this.answer)
.append("\n");
return builder.toString();
}
public SecurityGuarantee(String question, String answer) {
this.question = question;
this.answer = answer;
}
public SecurityGuarantee() {
this.securityid = 0;
}
//此处省略setter方法和getter方法
}
实体类关系如下
创建MyBatis配置文件
<?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>
<settings>
<!--当返回行的所有列都是空时,MyBatis默认返回null-->
<setting name="jdbcTypeForNull" value="NULL"/>
<!--cacheEnabled - 使全局的映射器启用或禁用缓存-->
<setting name="cacheEnabled" value="true"/>
</settings>
<!--类别名设置,在此配置了可以的mapper.xml中使用简单类名代替全限定类名-->
<typeAliases>
<package name="beans" />
</typeAliases>
<mappers>
<!--<mapper resource="Mapper.xml"/>-->
<package name="modeldao" />
</mappers>
</configuration>
创建Spring配置文件applicationContext.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">
<!-- c3p0数据源(properties文件配置)-->
<context:property-placeholder location="jdbc.properties"/>
<bean id="c3p0Datasource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driver}"/>
<property name="jdbcUrl" value="${jdbc.url}"/>
<property name="user" value="${jdbc.user}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<!-- c3p0数据源(直接配置)-->
<!--
<bean id="c3p0Datasource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="com.mysql.jdbc.Driver"/>
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/conference"/>
<property name="user" value="root"/>
<property name="password" value="qwer123456"/>
</bean>
-->
<!-- spring框架内置数据源-->
<!--<bean id="innerDataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">-->
<!--<property name="driverClassName" value="com.mysql.jdbc.Driver"/>-->
<!--<property name="url" value="jdbc:mysql://localhost:3306/conference"/>-->
<!--<property name="username" value="root"/>-->
<!--<property name="password" value="qwer123456"/>-->
<!--</bean>-->
<!-- BasicDataSource -->
<bean id="basicDataSource" class="org.apache.commons.dbcp2.BasicDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/conference"/>
<property name="username" value="root"/>
<property name="password" value="qwer123456"/>
</bean>
<!-- 创建-SqlSessionFactory对象 -->
<bean id="mysqlSqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:mybatis.xml" />
<property name="dataSource" ref="c3p0Datasource" />
</bean>
<!-- 生成Dao代理对象-->
<bean id="userinfoDao" class="org.mybatis.spring.mapper.MapperFactoryBean">
<property name="sqlSessionFactory" ref="mysqlSqlSessionFactory"/>
<property name="mapperInterface" value="modeldao.UserinfoDao"/>
</bean>
<!-- 扫描式动态代理-->
<!-- 配置为指定包中的所有接口生成代理对象-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="sqlSessionFactoryBeanName" value="mysqlSqlSessionFactory"/>
<property name="basePackage" value="modeldao"/>
</bean>
<bean id="scurityGuaranteeService" class="service.ScurityGuaranteeService">
<property name="dao" ref="securityGuaranteeDao"/>
</bean>
</beans>
测试Demo
数据源配置
1 spring框架内置数据源
<bean id="innerDataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/conference"/>
<property name="username" value="root"/>
<property name="password" value="qwer123456"/>
</bean>
2 c3p0数据源
<!-- c3p0数据源(properties文件配置)-->
<!--注册properties属性文件-->
<context:property-placeholder location="jdbc.properties"/>
<bean id="c3p0Datasource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driver}"/>
<property name="jdbcUrl" value="${jdbc.url}"/>
<property name="user" value="${jdbc.user}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<!-- c3p0数据源(直接配置)-->
<!--
<bean id="c3p0Datasource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="com.mysql.jdbc.Driver"/>
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/conference"/>
<property name="user" value="root"/>
<property name="password" value="qwer123456"/>
</bean>
-->
3 dpcp数据源
<?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">
<!-- BasicDataSource -->
<bean id="basicDataSource" class="org.apache.commons.dbcp2.BasicDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/conference"/>
<property name="username" value="root"/>
<property name="password" value="qwer123456"/>
</bean>
</beans>
创建SqlSessionFactory对象
- 注入MyBatis主配置文件位置
- 注入数据源
<!-- 创建-SqlSessionFactory对象 -->
<bean id="mysqlSqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:mybatis.xml"/>
<property name="dataSource" ref="c3p0Datasource"/>
</bean>
configLocation配置MyBatis
主配置文件位置时一定要加上classpath:,如果不加在启动Tomcat
时会遇到各种错误。
1. Mapper动态代理生成Dao代理对象
- 注入
sqlSessionFactory
属性 - 注入
mapperInterface
属性
<bean id="userinfoDao" class="org.mybatis.spring.mapper.MapperFactoryBean">
<property name="sqlSessionFactory" ref="mysqlSqlSessionFactory"/>
<property name="mapperInterface" value="modeldao.UserinfoDao"/>
</bean>
创建测试类测试UserinfoDao接口
public class UserinfoService {
@Test
public void addUserinfoTest() {
String resources = "applicationContext.xml";
ApplicationContext app = new ClassPathXmlApplicationContext(resources);
UserinfoDao dao = (UserinfoDao) app.getBean("userinfoDao");
UserInfo user = new UserInfo("UserNoExist", "abcd124666@163.com", "xxxxxx6");
dao.addUser(user);
}
@Test
public void queryUserInfoByIdTest() {
String resources = "applicationContext.xml";
ApplicationContext app = new ClassPathXmlApplicationContext(resources);
UserinfoDao dao = (UserinfoDao) app.getBean("userinfoDao");
UserInfo user = dao.queryUserInfoById(5);
System.out.println(user.toString());
}
}
2. 扫描式动态代理生成Dao代理对象
配置为指定包中的所有接口生成代理对象
- 创建
MapperScannerConfigurer
对象 - 配置
sqlSessionFactory
- 配置要生成代理对象所在的全限定包名
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="sqlSessionFactoryBeanName" value="mysqlSqlSessionFactory"/>
<property name="basePackage" value="modeldao"/>
</bean>
配置扫描式生成Mapper动态代理对象
<bean id="scurityGuaranteeService" class="service.ScurityGuaranteeService">
<property name="dao" ref="securityGuaranteeDao"/>
</bean>
测试类
public class SecurityGuaranteeServiceTest {
@Test
public void queryByUserIdTest() {
String resources = "applicationContext.xml";
ApplicationContext app = new ClassPathXmlApplicationContext(resources);
ScurityGuaranteeService service = (ScurityGuaranteeService) app.getBean("scurityGuaranteeService");
Set<SecurityGuarantee> set = service.queryByUserId(3);
for (SecurityGuarantee element : set) {
System.out.println(element.toString());
}
}
}