Spring IoC – 属性注入 – set方法和构造方法
一、建立项目
二、添加Spring的配置文件
三、建立Bean类
a) User
代码：
public class User {
private int intValue;
private char charValue;
private String strValue;
private double doubleValue;
private boolean booleanValue;
private Set<String> setValue;
private List<String> listValue;
private Properties props;
private Map<String, String> mapValue;
private Date dateValue;
private Student student;
private String[] strArr;
public User() {
super();
// TODO Auto-generated constructor stub
}
public User(String strValue) {
super();
this.strValue = strValue;
}
public int getIntValue() {
return intValue;
}
public void setIntValue(int intValue) {
this.intValue = intValue;
}
public char getCharValue() {
return charValue;
}
public void setCharValue(char charValue) {
this.charValue = charValue;
}
public String getStrValue() {
return strValue;
}
public void setStrValue(String strValue) {
this.strValue = strValue;
}
public double getDoubleValue() {
return doubleValue;
}
public void setDoubleValue(double doubleValue) {
this.doubleValue = doubleValue;
}
public boolean isBooleanValue() {
return booleanValue;
}
public void setBooleanValue(boolean booleanValue) {
this.booleanValue = booleanValue;
}
public Set<String> getSetValue() {
return setValue;
}
public void setSetValue(Set<String> setValue) {
this.setValue = setValue;
}
public List<String> getListValue() {
return listValue;
}
public void setListValue(List<String> listValue) {
this.listValue = listValue;
}
public Properties getProps() {
return props;
}
public void setProps(Properties props) {
this.props = props;
}
public Map<String, String> getMapValue() {
return mapValue;
}
public void setMapValue(Map<String, String> mapValue) {
this.mapValue = mapValue;
}
public Date getDateValue() {
return dateValue;
}
public void setDateValue(Date dateValue) {
this.dateValue = dateValue;
}
public Student getStudent() {
return student;
}
public void setStudent(Student student) {
this.student = student;
}
public String[] getStrArr() {
return strArr;
}
public void setStrArr(String[] strArr) {
this.strArr = strArr;
}
}
四、配置到Spring的配置文件applicationContext.xml
代码：
<?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:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
<bean id="date" class="java.util.Date"></bean>
<bean id="student" class="com.www.ioc.Student">
<!-- 构造方法的注入 -->
<constructor-arg index="0" value="userName"></constructor-arg>
<constructor-arg index="1" value="123"></constructor-arg>
</bean>
<bean id="user" class="com.www.ioc.User">
<!-- 构造方法注入 -->
<constructor-arg type="java.lang.String">
<value>strValue</value>
</constructor-arg>
<!-- int类型的注入 -->
<property name="intValue" value="123"></property>
<!-- boolean类型的注入 -->
<property name="booleanValue" value="true"></property>
<!-- char类型的注入 -->
<property name="charValue" value="中"></property>
<!-- double类型的注入 -->
<property name="doubleValue" value="1.2"></property>
<!-- date类型的注入 -->
<property name="dateValue" ref="date"></property>
<!-- list集合的注入 -->
<property name="listValue">
<list>
<value>list1</value>
<value>list2</value>
<value>list3</value>
</list>
</property>
<!-- properties属性文件的注入 -->
<property name="props">
<props>
<prop key="key">propsValue</prop>
</props>
</property>
<!-- map的注入 -->
<property name="mapValue">
<map>
<entry key="key1" value="key1Value"></entry>
<entry key="key2" value="ley2Value"></entry>
</map>
</property>
<!-- set集合的注入 -->
<property name="setValue">
<set>
<value>set1</value>
<value>set2</value>
</set>
</property>
<!-- Bean的注入 -->
<property name="student">
<ref bean="student" />
</property>
<!-- 数组注入 -->
<property name="strArr">
<list>
<value>strArr1</value>
<value>strArr2</value>
<value>strArr3</value>
</list>
</property>
</bean>
</beans>
五、编写测试类：
代码：
public class UserTest {
public static void main(String[] args) {
BeanFactory factory = new ClassPathXmlApplicationContext(
"applicationContext.xml");
User user = (User) factory.getBean("user");
System.out.println("user.getCharValue():" + user.getCharValue());
System.out.println("user.getDoubleValue():" + user.getDoubleValue());
System.out.println("user.getIntValue():" + user.getIntValue());
System.out.println("user.getStrValue():" + user.getStrValue());
System.out.println("user.getDateValue():" + user.getDateValue());
System.out.println("user.getListValue().get(1):"
+ user.getListValue().get(1));
System.out.println("user.getMapValue().get('key1'):"
+ user.getMapValue().get("key1"));
System.out.println("user.getProps():" + user.getProps());
System.out.println("user.getSetValue():" + user.getSetValue());
System.out.println("user.getStudent():" + user.getStudent());
System.out.println("user.getStrArr():" + user.getStrArr()[1]);
}
}