Spring笔记4—复杂属性的注入

阅读完需：约 2 分钟

基本常见的属性都在这了——普通数组，list，Map，Set，Properties，还有他们的xml配置。

public class AllColletionType {
	private List<String> list1;
	private Map<String, String> map2;
	private Set<String> set3;
	private Properties pro4;
	private String [] shuzu5;
	public List<String> getList1() {
		return list1;
	}
	public void setList1(List<String> list1) {
		this.list1 = list1;
	}
	public Map<String, String> getMap2() {
		return map2;
	}
	public void setMap2(Map<String, String> map2) {
		this.map2 = map2;
	}
	public Set<String> getSet3() {
		return set3;
	}
	public void setSet3(Set<String> set3) {
		this.set3 = set3;
	}
	public Properties getPro4() {
		return pro4;
	}
	public void setPro4(Properties pro4) {
		this.pro4 = pro4;
	}
	public String[] getShuzu5() {
		return shuzu5;
	}
	public void setShuzu5(String[] shuzu5) {
		this.shuzu5 = shuzu5;
	}
	
	@Override
	public String toString() {
		String zimu="";
		for(String arry:shuzu5) {
			zimu+=arry;
		}
		return "list:"+this.list1+"\nmap:"+this.map2+"\nset:"+this.set3+"\npro4:"+this.pro4+"\nshuzu5:"+zimu;
	}
}

集合的注入方法
<bean id="all" class="org.lanqiao.entity.AllColletionType">
	<property name="list1">--------list数组
		<list>
			<value>java<![CDATA[<]]></value>
			<value>sql</value>
			<value>python</value>
		</list>
	</property>
	
	<property name="map2">---------map数组
[简便方法：]
<map>
<entry key=”key1” value=”asd”/>
<entry key=”key2” value=”qwe”/>
</map>
		<map>
			<entry>
				<key>
					<value>j</value>
				</key>
					<value>java1</value>
			</entry>
			<entry>
				<key>
					<value>s</value>
				</key>
					<value>sql1</value>
			</entry>
			<entry>
				<key>
					<value>p</value>
				</key>
					<value>python1</value>
			</entry>
		</map>
	</property>
	
	<property name="pro4">----Properties数组
		<props>
			<prop key="j2">java2</prop>
			<prop key="s2">sql2</prop>
			<prop key="p2">python2</prop>
		</props>
	</property>
	
	<property name="set3">--------set数组
		<set>
			<value>java3</value>
			<value>sql3</value>
			<value>python3</value>
		</set>
	</property>
	
	<property name="shuzu5">---------普通数组
		<array>
			<value>java4</value>
			<value>sql4</value>
			<value>python4</value>
		</array>
	</property>
	</bean>
	
</beans>

Null注入

 <property name="wife"><null/></property>

Properties注入

 <property name="info">
     <props>
         <prop key="学号">20190604</prop>
         <prop key="性别">男</prop>
         <prop key="姓名">小明</prop>
     </props>
 </property>

特殊值的注入

特殊符号：1.用XML语法注入 2. <![CDATA[<]]>来注入

空值的注入：1. <value> </value>2.<！null>