Spring对字段和集合的注入---依赖注入

Spring容器中，对于Bean的属性，或者说是集合，可以使用Spring容器进行值的注入和加载。包括基本类型的值的注入和容器类的注入。首先需要写一个Bean.

package com.bird.service.impl;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;
import java.util.Set;

import com.bird.dao.PersonDao;

public class PersonServerBean {

private PersonDao personDao;
private String name;
private Set<String> set = new HashSet<String>();
private List<String> list = new ArrayList<String>();
private Properties properties = new Properties();
private Map<String,String> map = new HashMap<String,String>();

public Map<String, String> getMap() {
return map;
}

public void setMap(Map<String, String> map) {
this.map = map;
}

public Properties getProperties() {
return properties;
}

public void setProperties(Properties properties) {
this.properties = properties;
}

public List<String> getList() {
return list;
}

public void setList(List<String> list) {
this.list = list;
}

public Set<String> getSet() {
return set;
}

public void setSet(Set<String> set) {
this.set = set;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public PersonDao getPersonDao() {
return personDao;
}

public void setPersonDao(PersonDao personDao) {
this.personDao = personDao;
}

public void init() {
personDao.add();
System.out.println(name);

for(String value : set){
System.out.println(value);
}

for(String temp:list){
System.out.println(temp);
}

for(int i = 1; i <= properties.size(); i++){
System.out.println(properties.getProperty(String.valueOf(i)));
}

for(Entry<String, String> entry :map.entrySet()){
System.out.println(entry.getKey()+"=="+entry.getValue());
}
}
}

在Bean.xml文件中进行属性值的配置

<?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-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd" >
<context:annotation-config/>

<!--

<bean id="personDao" class="com.bird.dao.impl.PersonDaoBean"></bean>

<bean id="personService" class="com.bird.service.impl.PersonServerImpl"
init-method="init" destroy-method="destory" scope="prototype"></bean>

<bean id="personServerBean" class="com.bird.service.impl.PersonServerBean">
<property name="personDao" ref="personDao"></property>
</bean>
-->

<bean id="personServerBean" class="com.bird.service.impl.PersonServerBean">
<property name="personDao">
<bean class="com.bird.dao.impl.PersonDaoBean"></bean>
</property>
<property name="name" value="bird"></property>

<property name="set">
<set>
<value>第一个</value>
<value>第二个</value>
<value>第三个</value>
</set>
</property>

<property name="list">
<list>
<value>one</value>
<value>two</value>
<value>three</value>
</list>
</property>

<property name="properties">
<props>
<prop key="1">Properties1</prop>
<prop key="2">Properties2</prop>
<prop key="3">Properties3</prop>
</props>
</property>

<property name="map">
<map>
<entry key="key-1" value="value-1"></entry>
<entry key="key-2" value="value-2"></entry>
<entry key="key-3" value="value-3"></entry>
</map>
</property>
</bean>
</beans>

这样就可以完成对容器类的属性注入了