JavaNoobPig

<?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:context="http://www.springframework.org/schema/context"
       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.xsd">
           
           <context:component-scan base-package="com.pig.spring.basics" />

JavaNoobPig

package com.pig.spring.basics.springin5steps.Scope;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
public class PersonDAO {
	
	@Autowired
	JdbcConnection jdbcConnection;

JavaNoobPig

package com.pig.spring.basics.springin5steps.Scope;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

@Repository  //<--改這裡
public class PersonDAO {
	
	@Autowired
	JdbcConnection jdbcConnection;

JavaNoobPig

package com.pig.spring.basics.componentscan;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

@Repository   //<--改這裡
public class ComponentDAO {
	
	@Autowired
	ComponentJdbcConnection jdbcConnection;

JavaNoobPig

package com.pig.spring.basics.springin5steps.Basic;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Service;

JavaNoobPig

package com.pig.spring.basics.springin5steps.Basic;

import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Service;

@Service  //<-改這裡
@Qualifier("bubble")
public class BubbleSortAlgorithm implements SortAlgorithm{
	public int[] sort(int[] numbers) {
		// Logic for Bubble Sort

JavaNoobPig

package com.pig.spring.basics.springin5steps.Basic;

import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Service;


@Service   //<-改這裡
@Qualifier("quick")
public class QuickSortAlgorithm implements SortAlgorithm{
	public int[] sort(int[] numbers) {

JavaNoobPig

package com.pig.spring.basics.springin5steps.properties;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

@Component  //<-要讓Spring找到所以要有宣告是Component
public class SomeExternalService {

	@Value("${erternal.service.url}")    //<-預計在設定檔內的key值
	private String url;

JavaNoobPig

erternal.service.url=http://someserver.dev.com/service

JavaNoobPig

package com.pig.spring.basics.springin5steps;

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

import com.pig.spring.basics.springin5steps.properties.SomeExternalService;

@Configuration