Spring 使用javaconfig配置

时间：2018-01-27 13:47:27 阅读：308 评论：0 收藏：0 [点我收藏+]

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除了使用xml，spring提供javaconfig配置，下面是简单的例子：

1.声明接口

/**
 * 
 */
package com.junge.demo.spring.service;

/**
 * 表演
 * @author Administrator
 *
 */
public interface IPerface {

    void play();
}

2.添加实现类

/**
 * 
 */
package com.junge.demo.spring.service.impl;

import org.springframework.stereotype.Service;

import com.junge.demo.spring.service.IPerface;

/**
 * 武术表演
 * @author Administrator
 *
 */
@Service
public class WushuPerface implements IPerface {

    /* (non-Javadoc)
     * @see com.junge.demo.spring.service.IPerface#play()
     */
    @Override
    public void play() {
        System.out.println("武术表演");

    }

}

3.添加javaconfig配置类，和服务接口在同一级

/**
 * 
 */
package com.junge.demo.spring.service;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;

/**
 * 自动装配配置类
 * @author Administrator
 *
 */
@Configuration
@ComponentScan
public class ServiceConfig {

}

4.运行测试：

/**
 * 
 */
package com.junge.demo.spring;

import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;

import com.junge.demo.spring.service.IPerface;
import com.junge.demo.spring.service.ServiceConfig;

/**
 * @author Administrator
 *
 */
public class ServiceConfigApp {

    private static ApplicationContext applicationContext;

    /**
     * @param args
     */
    public static void main(String[] args) {
        applicationContext = new AnnotationConfigApplicationContext(ServiceConfig.class);
        System.out.println(applicationContext.getBeansOfType(IPerface.class));

    }

}