mybatis 和 mybatis-spring
一、
1. 实体bean
package com.mybatisBean;
public class User {
private Integer id;
private String name;
private String age;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}
}
2.dao类
package com.mybatisDao;
import java.util.List;
import com.mybatisBean.User;
public interface UserDao {
public List<User> selectAll();
}
3.dao 映射文件
<?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.mybatisDao.UserDao">
<select id="selectAll" resultType="com.mybatisBean.User">
select * from user
</select>
</mapper>
4.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>
<!-- <environments default="development">
<environment id="development">
<transactionManager type="JDBC"></transactionManager>
<dataSource type="POOLED">
<property name="driver" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/test_mysql?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull"/>
<property name="username" value="root"/>
<property name="password" value="123456"/>
</dataSource>
</environment>
</environments> -->
<mappers>
<mapper resource="mybatisMapper/UserMapper.xml"/>
</mappers>
</configuration>
5. 测试
package com.mybatisTest; import java.io.Reader;
import java.util.List; import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder; import com.mybatisBean.User;
import com.mybatisDao.UserDao; /*
* mybatis 第一种方式
* 1. 创建实体，2. 创建dao ,声明接口 3. 创建dao 对应的映射文件
* 4. 创建mybatis 配置文件，声明数据库连接，配置映射文件 5.通过mybatis配置文件和sessionfactoryBuilder引用
* 第一种方式在 mybatis 配置文件中配置数据库链接
*/
public class TestUser {
public static void main(String[] args) throws Exception{
String resource="mybatis-configuration.xml";
Reader reader=Resources.getResourceAsReader(resource);
SqlSessionFactoryBuilder bulider=new SqlSessionFactoryBuilder();
SqlSessionFactory factory=bulider.build(reader);
SqlSession session=factory.openSession();
UserDao userdao=session.getMapper(UserDao.class);
List<User> list=userdao.selectAll();
for(User user:list){
System.out.println(user.getName()+":"+user.getAge());
}
session.commit();
session.close();
}
}
jar 包 ，主要有 mybatis-3.1.1.jar 和 mysql-connector-java-5.1.jar
二、
多出的部分。
1. service 接口和实现
package com.mybatisService.User;
import java.util.List;
import com.mybatisBean.User;
public interface UserService {
public List<User> selectAll();
}
package com.mybatisService.User;
import java.util.List;
import com.mybatisBean.User;
import com.mybatisDao.UserDao;
public class UserImpl implements UserService{
private UserDao userdao;
public UserDao getUserdao() {
return userdao;
}
public void setUserdao(UserDao userdao) {
this.userdao = userdao;
}
@Override
public List<User> selectAll() {
return this.userdao.selectAll();
}
}
2. 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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/test_mysql?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull"/>
<property name="username" value="root"/>
<property name="password" value="123456"/>
</bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:mybatis-configuration.xml"></property>
<property name="dataSource" ref="dataSource"></property>
</bean>
<bean id="userDao" class="org.mybatis.spring.mapper.MapperFactoryBean">
<property name="mapperInterface" value="com.mybatisDao.UserDao"></property>
<property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
</bean>
<bean id="userservice" class="com.mybatisService.User.UserImpl">
<property name="userdao" ref="userDao"></property>
</bean>
</beans>
mybatis 配置文件中的 数据库链接不需要了 。
基于以上 添加 mybatis
添加jar 包 mybats-3.1.jar mysql-connector-java-5.1 mybatis-spring.jar ,commons-dbcp,commons-pool,spring-jdbc 等
UserDao.java
package com.mybatisdao;
import java.util.List;
import com.bean.User;
public interface UserDao {
public List<User> selectAll();
}
UserDaoMapper.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.mybatisdao.UserDao">
<select id="selectAll" resultType="com.bean.User">
select * from user
</select>
</mapper>
mybatis-configuration.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>
<!-- <environments default="development">
<environment id="development">
<transactionManager type="JDBC"></transactionManager>
<dataSource type="POOLED">
<property name="driver" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/test_mysql?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull"/>
<property name="username" value="root"/>
<property name="password" value="***"/>
</dataSource>
</environment>
</environments> --> <!--结合spring 时要在Spring 配置文件中配置 数据库链接-->
<mappers>
<mapper resource="com/mybatisMapper/UserDaoMapper.xml"/>
</mappers>
</configuration>
更改HappyNewYearIml.java
package com.service; import java.util.List; import javax.jws.WebService; import com.bean.Person;
import com.bean.User;
import com.mybatisdao.UserDao; @WebService(endpointInterface = "com.service.HappyNewYear")
public class HappyNewYearImpl implements HappyNewYear
{
private UserDao userdao; //主要改动的地方 public UserDao getUserdao() {
return userdao;
} public void setUserdao(UserDao userdao) {
this.userdao = userdao;
} public String sayHello(Person person)
{
List<User> list=userdao.selectAll();
String ss="";
for(User u:list){
if(u.getId()+""==person.getFirstName()){
ss=u.getName()+"年龄"+u.getAge();
}
} return ss==""?"没有":ss;
} }
applicationContext.xml更改
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jaxws="http://cxf.apache.org/jaxws"
xmlns:jaxrs="http://cxf.apache.org/jaxrs"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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
http://cxf.apache.org/jaxws
http://cxf.apache.org/schemas/jaxws.xsd
http://cxf.apache.org/jaxrs
http://cxf.apache.org/schemas/jaxrs.xsd"> <import resource="classpath:META-INF/cxf/cxf.xml" />
<import resource="classpath:META-INF/cxf/cxf-extension-soap.xml" />
<import resource="classpath:META-INF/cxf/cxf-servlet.xml" />
<bean id="person" class="com.bean.Person"></bean>
<bean id="restSample" class="com.rest.HelloLove"></bean>
<context:component-scan base-package="com.*">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!--主要更改部分begin-->
<!-- 下面3个bean 的 class 需要导入 mybatis-spring.jar ,commons-dbcp,commons-pool,spring-jdbc -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/test_mysql?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull"/>
<property name="username" value="root"/>
<property name="password" value="123456"/>
</bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:com/resoureces/mybatis-configuration.xml"></property>
<property name="dataSource" ref="dataSource"></property>
</bean>
<bean id="userDao" class="org.mybatis.spring.mapper.MapperFactoryBean">
<property name="mapperInterface" value="com.mybatisdao.UserDao"></property>
<property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
</bean>
<bean id="happyNewYearImpl" class="com.service.HappyNewYearImpl">
<property name="userdao" ref="userDao"></property>
</bean>
<!-- 当jaxws:endpoint的 implementor需要引入Spring bean 时 要加 # ，这是第一种方式 -->
<jaxws:endpoint id="greetServicce" implementor="#happyNewYearImpl" address="/greetServicce" />
<!-- 第二种方式 -->
<!-- <jaxws:endpoint id="greetServicce" implementorClass="com.service.HappyNewYearImpl" address="/greetServicce">
<jaxws:implementor>
<bean ref="userDao"></bean> 找不到ref 属性 ，应该是版本问题
</jaxws:implementor>
</jaxws:endpoint> -->
<!--主要更改部分end-->
<jaxrs:server id="restServiceContainer" address="/rest">
<jaxrs:serviceBeans>
<ref bean="restSample"/>
</jaxrs:serviceBeans>
<jaxrs:extensionMappings>
<entry key="json" value="application/json" />
<entry key="xml" value="application/xml" />
</jaxrs:extensionMappings>
<jaxrs:languageMappings>
<entry key="en" value="en-gb"/>
</jaxrs:languageMappings>
</jaxrs:server>
</beans>
测试
package com.test; import java.io.IOException;
import java.io.Reader;
import java.util.List; import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder; import com.bean.User;
import com.mybatisdao.UserDao; public class testmybatis {
public static void main(String[] args) throws IOException{
String resource="com/resoureces/mybatis-configuration.xml";
Reader reader=Resources.getResourceAsReader(resource);
SqlSessionFactoryBuilder bulider=new SqlSessionFactoryBuilder();
SqlSessionFactory factory=bulider.build(reader);
SqlSession session=factory.openSession();
UserDao userdao=session.getMapper(UserDao.class);
List<User> list=userdao.selectAll();
for(User u:list){
System.out.println(u.getName()+"年龄"+u.getAge());
}
session.commit();
session.close();
}
}
请结合 http://www.cnblogs.com/zhangchenglzhao/p/3505176.html
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