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&amp;characterEncoding=UTF-8&amp;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&amp;characterEncoding=UTF-8&amp;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&amp;characterEncoding=UTF-8&amp;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&amp;characterEncoding=UTF-8&amp;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