Mybatis+struts2+spring整合

把student项目改造成ssm  struts2 +mybatis+spring

1，先添加spring支持：类库三个，applicationContext.xml写在webinf下四个命名空间，监听器

2，添加struts2支持  struts2与spring整合的jar包

3，添加mybatis2支持，把jar包导入，mybatis与spring整合的jar包，把原来在mybatis.cfg.xml中的大部分配置都写在applicationContext.xml，跟hibernate一样，只不过像日志输出方式与分页插件还是需要写在mybatis.cfg.xml中

<?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:aop="http://www.springframework.org/schema/aop"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:p="http://www.springframework.org/schema/p"
	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/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd">
	<context:component-scan base-package="cn.bdqn.student"/>

	<!-- 配置数据源 -->
	<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"
	p:driverClassName="oracle.jdbc.OracleDriver"
		p:url="jdbc:oracle:thin:@localhost:1521:ORCL"
		p:username="stuinfo"
		p:password="ok"
	/>
	<!-- 配置SQLSessionFactory "dataSource"注入数据源 typeAliasesPackage把这个实体类下的所有都自动设置别名-->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"
		p:dataSource-ref="dataSource"
		p:mapperLocations="classpath:cn/bdqn/student/mapper/*.xml"
		p:typeAliasesPackage="cn.bdqn.student.entity"
		p:configLocation="classpath:mybatis.cfg.xml"
	/>

	<!-- 配置事务管理器 -->
	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
		p:dataSource-ref="dataSource"
	/>

	<!-- 事务增强 -->
	<tx:advice id="txAdvice">
		<tx:attributes>
			<tx:method name="*"/>
		</tx:attributes>
	</tx:advice>

	<!-- 事务切面 -->
	<aop:config>
		<aop:pointcut expression="execution(* cn.bdqn.student.service..*.*(..))" id="txMethods"/>
		<aop:advisor advice-ref="txAdvice" pointcut-ref="txMethods"/>
	</aop:config>

	<!-- 配置动态创建Mapper实现类对象 -->
	<!--
	<bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean"
		p:mapperInterface="cn.bdqn.student.mapper.UserMapper"
		p:sqlSessionFactory-ref="sqlSessionFactory"
	/>  

   	<bean id="courseMapper" class="org.mybatis.spring.mapper.MapperFactoryBean"
		p:mapperInterface="cn.bdqn.student.mapper.CourseMapper"
		p:sqlSessionFactory-ref="sqlSessionFactory"
	/>  

	<bean id="educationMapper" class="org.mybatis.spring.mapper.MapperFactoryBean"
		p:mapperInterface="cn.bdqn.student.mapper.EducationMapper"
		p:sqlSessionFactory-ref="sqlSessionFactory"
	/>

	<bean id="studentMapper" class="org.mybatis.spring.mapper.MapperFactoryBean"
		p:mapperInterface="cn.bdqn.student.mapper.StudentMapper"
		p:sqlSessionFactory-ref="sqlSessionFactory"
	/>
	-->

	<!-- 扫描指定的包，根据映射自动生成Mapper实现类对象 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"
		p:basePackage="cn.bdqn.student.mapper"
	/>  

</beans>

<?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="cn.bdqn.student.mapper.StudentMapper">
	<insert id="saveStudent" parameterType="Student">
		INSERT INTO Student(id,name,sex,birthday,cid,eid,contact,time,state,addTime,pic) VALUES(
		SEQ_STUDENT.nextval,
		#{name},
		#{sex},
		#{birthday},
		#{course.id},
		#{education.id},
		#{contact},
		#{time},
		#{state},
		#{addtime},
		#{pic}
		)
	</insert>

	<select id="getStudent" resultMap="studentMap">
		SELECT
      	  s.id,
		  s.name,
		  s.sex,
		  s.birthday,
		  s.cid,
		  s.eid,
		  s.contact,
		  s.time,
		  s.state,
		  s.addTime,
		  c.name AS cname,
		  e.name AS ename,
      	  s.pic
		FROM Student s INNER JOIN Course c ON s.cid=c.id
		               INNER JOIN Education e ON s.eid=e.id
		WHERE s.id=#{id}

	</select>

	<select id="findStudent" resultMap="studentMap">
		SELECT
      	  s.id,
		  s.name,
		  s.sex,
		  s.birthday,
		  s.cid,
		  s.eid,
		  s.contact,
		  s.time,
		  s.state,
		  s.addTime,
		  c.name AS cname,
		  e.name AS ename,
      	  s.pic
		FROM Student s INNER JOIN Course c ON s.cid=c.id
		               INNER JOIN Education e ON s.eid=e.id
		<where>
			<if test="name!=null">s.name LIKE #{name}</if>
			<if test="courseId">AND s.cid=#{courseId}</if>
			<if test="time!=null">AND time=#{time}</if>
			<if test="educationId!=null">AND s.eid=#{educationId}</if>
			<if test="state!=null">AND state=#{state}</if>
		</where>
		ORDER  BY s.id DESC
	</select>

	<resultMap id="studentMap" type="Student">
		<id column="id" property="id"/>
		<result column="name" property="name"/>
		<result column="sex" property="sex"/>
		<result column="birthday" property="birthday"/>
		<result column="contact" property="contact"/>
		<result column="time" property="time"/>
		<result column="state" property="state"/>
		<result column="addTime" property="addtime"/>
		<result column="birthday" property="birthday"/>

		<association property="course" javaType="Course">
			<id column="cid" property="id"/>
			<result column="cname" property="name"/>
		</association>

		<association property="education" javaType="Education">
			<id column="eid" property="id"/>
			<result column="ename" property="name"/>
		</association>

	</resultMap>

	<update id="updateStudent" parameterType="Studnet">
		UPDATE Student SET
			name=#{name},
			sex=#{sex},
			birthday=#{birthday},
			cid=#{course.id},
			eid=#{education.id},
			contact=#{contact},
			time=#{time},
			state=#{state},
			pic=#{pic}
		WHERE
			id=#{id}

	</update>

	<delete id="deleteStudent">
		DELETE FROM Student WHERE id=#{id} 

	</delete>

</mapper>

package cn.bdqn.student.mapper;

import java.util.List;

import org.apache.ibatis.annotations.Param;

import cn.bdqn.mybatis.plugin.PageParam;
import cn.bdqn.student.entity.Course;
import cn.bdqn.student.entity.Student;

public interface StudentMapper {
	public List<Student> findStudent(
			@Param("pageParam") PageParam param,
			@Param("name") String name,
			@Param("courseId") Integer courseId,
			@Param("time") Integer time,
			@Param("educationId") Integer educationId,
			@Param("state") Integer state
			);

	public void saveStudent(Student student); 

	public Student getStudent(Integer id);

	//更新学生
	public void updateStudent(Student student);

	//删除学生
	public void deleteStudent(Integer id);
}

package cn.bdqn.student.dao.student;

import java.util.List;

import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

import cn.bdqn.mybatis.plugin.PageParam;
import cn.bdqn.student.entity.Student;
import cn.bdqn.student.mapper.StudentMapper;
import cn.bdqn.student.util.PageBean;
@Repository("studentDAO")
public class StudentDAOImpl implements IStudentDAO{

	private StudentMapper studentMapper;
	@Autowired
	public void setStudentMapper(StudentMapper studentMapper) {
		this.studentMapper = studentMapper;
	}

	@Override
	public void saveStudent(Student student) {
		studentMapper.saveStudent(student);
	}

	@Override
	public PageBean findStudent(int pageIndex, int pageSize, String name,
			Integer courseId, Integer time, Integer educationId, Integer state) {
		PageBean p=new PageBean();
		PageParam param=new PageParam();

		if(StringUtils.isEmpty(name) ){
			name=null;
		}//由于name是“”空字符串，但我在判断的时候却是以空来进行判断的，所以需要进行处理

		List<Student> results=studentMapper.findStudent(param, name, courseId, time, educationId, state);
		p.setPageIndex(pageIndex);
		p.setPageSize(pageSize);
		p.setPageCount(param.getPageCount());
		p.setResults(results);
		p.setRowCount(param.getRowCount());

		return p;
	}

	@Override
	public Student getStudent(Integer id) {
		// TODO Auto-generated method stub
		return studentMapper.getStudent(id);
	}

	@Override
	public void updateStudent(Student student) {
		// TODO Auto-generated method stub

	}

	@Override
	public void deleteStudent(Integer id) {
		// TODO Auto-generated method stub

	}

}