介绍
@Autowire注解怎么在春天中使用?针对这个问题,这篇文章详细介绍了相对应的分析和解答,希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。
<强>一配置
& lt; ? xml version=?.0“,编码=癎BK" ?比;
http://www.springframework.org/schema/beans" & lt; beans xmlns=?;
,,xmlns: xsi=癶ttp://www.w3.org/2001/XMLSchema-instance"
,,xmlns:上下文=癶ttp://www.springframework.org/schema/context"
,,xsi: schemaLocation=? http://www.springframework.org/schema/beans
,,http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
,,http://www.springframework.org/schema/context
,,,http://www.springframework.org/schema/context/spring-context-4.0.xsd"的在
,,& lt;环境:component-scan
,,,,,基本包=皁rg.crazyit.app.service, org.crazyit.app.dao"/祝辞,,,
& lt;/beans> <强>二刀接口扩展
BaseDao
package org.crazyit.app.dao;
public interface BaseDao
{
,,void 拯救(T e);
} ItemDao
package org.crazyit.app.dao;
import org.crazyit.app.domain。*;
public interface ItemDao extends BaseDao< Item>
{
} UserDao
package org.crazyit.app.dao;
import org.crazyit.app.domain。*;
public interface UserDao extends BaseDao< User>
{
} <强>三刀实现类
BaseDaoImpl
package org.crazyit.app.dao.impl;
import org.crazyit.app.dao。*;
public class BaseDaoImpl
{
,,public void 保存(T e)
,,{
,,,,,System.out.println(“程序保存对象:“,+,e);
,,}
} ItemDaoImpl
package org.crazyit.app.dao.impl;
import org.springframework.stereotype。*;
import org.crazyit.app.dao。*;
import org.crazyit.app.domain。*;
@ component (“itemDao")
public class ItemDaoImpl extends BaseDaoImpl< Item>
implements ItemDao才能
{
} UserDaoImpl
package org.crazyit.app.dao.impl;
import org.springframework.stereotype。*;
import org.crazyit.app.dao。*;
import org.crazyit.app.domain。*;
@ component (“userDao")
public class UserDaoImpl extends BaseDaoImpl< User>
implements UserDao才能
{
} <强>四豆
项目 package org.crazyit.app.domain;
public class 项目
{
用户}
package org.crazyit.app.domain;
public class 用户
{
} <强>五服务接口
BaseService
package org.crazyit.app.service;
import org.springframework.stereotype。*;
import org.springframework.beans.factory.annotation。*;
import org.crazyit.app.service。*;
public interface BaseService
{
void 才能addEntity (T 实体);
} ItemService
package org.crazyit.app.service;
import org.springframework.stereotype。*;
import org.springframework.beans.factory.annotation。*;
import org.crazyit.app.service。*;
import org.crazyit.app.domain。*;
@ component
public interface ItemService extends BaseService< Item>
{
} UserService
package org.crazyit.app.service;
import org.springframework.stereotype。*;
import org.springframework.beans.factory.annotation。*;
import org.crazyit.app.service。*;
import org.crazyit.app.domain。*;
@ component
public interface UserService extends BaseService< User>
{
} <>强六服务实现类
BaseServiceImpl
package org.crazyit.app.service.impl;
import org.springframework.stereotype。*;
import org.springframework.beans.factory.annotation。*;
import org.crazyit.app.dao。*;
import org.crazyit.app.service。*;
public class BaseServiceImpl
{
@ autowired才能
private 才能;BaseDao< T>,刀;
public 才能;void addEntity (T 实体)
{才能
,,,System.out.println(“调用“,+,刀
,,,,,+,“保存实体:“,+,实体);
,,}
}
