Bean作用域的配置以及 Spring各种注入方式实例 list set map props
class="com.lihui.MyDate" scope="prototype"></bean>
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2.各种注入方式
所有的注入方式在Spring.xml 文件中配置如下：
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans 3 xmlns="http://www.springframework.org/schema/beans" 4 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 5 xmlns:p="http://www.springframework.org/schema/p" 6 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> 7 8 <!-- 注入基本类型 --> 9 <bean id="person" class="com.lihui.Person">10 <property name="name" value="张三"></property>11 <property name="password" value="hello"></property>12 <property name="chock" value="true"></property>13 </bean>14 15 <!-- 注入list类型和数组类型-->16 <bean id="beansDemoClass" class="com.lihui.BeansDemoClass">17 <property name="fruit">18 <list>19 <value>荔枝</value>20 <value>桔子</value>21 <value>樱桃</value>22 </list>23 </property>24 <property name="num">25 <list>26 <value>20</value>27 <value>45</value>28 <value>12</value>29 </list>30 </property>31 </bean>32 33 <!-- 注入引用类型 -->34 <bean id="mydate" class="com.lihui.MyDate" scope="prototype">35 <property name="date" ref="refdate"></property>36 </bean>37 <bean id="refdate" class="java.util.Date" scope="prototype"></bean>38 39 <!-- 注入 set map props 类型 -->40 <bean id="gatherDemp" class="com.lihui.SetMapProps">41 <property name="scoreMap">42 <map>43 <!-- map 必须是 key-value 对应的 -->44 <entry key="Maths">45 <value>98</value>46 </entry>47 <entry key="English">48 <value>95</value>49 </entry>50 </map>51 </property>52 <property name="properties">53 <!-- 定义 properties 属性 -->54 <props>55 <!-- props 必须是 key-value 对应的 -->56 <prop key="path">C:/MyDocument/MyMusic</prop>57 <prop key="filename">lihui.txt</prop>58 </props>59 </property>60 <property name="settest">61 <set>62 <!-- set元素，使用value、bean、ref 等指定系列值 -->63 <value>set值</value>64 </set>65 </property>66 </bean>67 </beans>
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（1）基本注入方式
person.java
1 public class Person { 2 public String name; 3 public String password; 4 public boolean islogin; 5 6 public void setName(String name){ 7 this.name = name; 8 } 9 public void setPassword(String password){10 this.password = password;11 }12 public void setChock(boolean islogin){13 this.islogin = islogin;14 }15 }调用方法：
1 public static void main(String[] args) {2 XmlBeanFactory bFactory = new XmlBeanFactory(new ClassPathResource(3 "Spring.xml"));4 Person person = (Person) bFactory.getBean("person");5 System.out.println("姓名：" + person.name + " 密码：" + person.password6 + " 状态：" + person.islogin); 7 }（2）注入引用类型
MyDate.java
1 public class MyDate {2 private Date date;3 public void setDate(Date date){4 this.date = date;5 }6 public void getDate(){7 System.out.println(date);8 }9 }应用举例：
1 public static void main(String[] args) { 2 XmlBeanFactory bFactory = new XmlBeanFactory(new ClassPathResource("Spring.xml")); 3 MyDate myDate = (MyDate)bFactory.getBean("mydate"); 4 myDate.getDate(); 5 try { 6 Thread.sleep(1000); 7 } catch (InterruptedException e) { 8 // TODO Auto-generated catch block 9 e.printStackTrace();10 }11 ((MyDate)bFactory.getBean("mydate")).getDate(); 12 }（3）注入list类型和数组类型
BeansDemoClass.java
1 public class BeansDemoClass { 2 public List<String> fruit; 3 public int[] num; 4 public void setFruit(List<String> fruit){ 5 this.fruit = fruit; 6 for(String f : fruit){ 7 System.out.println(f); 8 } 9 }10 public void setNum(int[] num){11 this.num = num;12 for(int n : num){13 System.out.println(n);14 }15 }16 }应用举例：
bDemoClass.num); 5 }（4）注入set、map 及 props 类型
SetMapProps.java
1 public class SetMapProps { 2 public Map scoreMap = new HashMap<String, String>(); 3 public Properties properties = new Properties(); 4 public Set settest = new HashSet<String>(); 5 public void setScoreMap(Map scoreMap){ 6 this.scoreMap = scoreMap; 7 System.out.println(this.scoreMap.get("English")); 8 } 9 public void setProperties(Properties properties){10 this.properties = properties;11 System.out.println(this.properties.get("path"));12 System.out.println(this.properties.get("filename"));13 }14 public void setSettest(Set settest){15 this.settest = settest;16 System.out.println(settest.toString());17 }18 }应用：
1 public static void main(String[] args) {2 XmlBeanFactory bFactory = new XmlBeanFactory(new ClassPathResource("Spring.xml"));3 SetMapProps beans = (SetMapProps) bFactory.getBean("gatherDemp");4 5 }