第一种：通过构造name和value属性（不常用）
<!-- userAction -->
<bean id="userAction" class="com.xx.action.UserAction">
<constructor-arg name="add" value="山东"></constructor-arg>
<constructor-arg name="age" value="29"></constructor-arg>
</bean>
第二种：构造通过index/value 配合type使用（常用）
<!-- userAction -->
<bean id="userAction" class="com.xx.action.UserAction">
<constructor-arg index="0" value="孔府" type="String"></constructor-arg>
<constructor-arg index="1" value="29" type="Integer"></constructor-arg>
</bean>
bean类
public class UserAction {
private String name;
private Integer age;
private String add;
public UserAction(String name, Integer age) {
this.name = name;
this.age = age;
}
public UserAction(Integer age, String add) {
this.age = age;
this.add = add;
}
}