package examples;public class ExampleBean {// Number of years to calculate the Ultimate Answerprivate int years;// The Answer to Life, the Universe, and Everythingprivate String ultimateAnswer;

　　　　//如果不能在debug模式下进行编译，必须要加下面一行。针对下面的方式3，通过参数名字。　　@ConstructorProperties({"years", "ultimateAnswer"})

public ExampleBean(int years, String ultimateAnswer) {this.years = years;this.ultimateAnswer = ultimateAnswer;}}

<bean id="exampleBean" class="examples.ExampleBean">

　　//方式1，通过类型，如果存在两个参数同类型的话，不行。<constructor-arg type="int" value="7500000"/><constructor-arg type="java.lang.String" value="42"/>

　　//方式2，通过参数位置。

    <constructor-arg index="0" value="7500000"/> <constructor-arg index="1" value="42"/>

　　//方式3，通过参数名字。

    <constructor-arg name="years" value="7500000"/> <constructor-arg name="ultimateAnswer" value="42"/>

</bean>

package x.y;public class Foo {public Foo(Bar bar, Baz baz) {// ...
    }}

<beans><bean id="foo" class="x.y.Foo"><constructor-arg ref="bar"/>

        <constructor-arg ref="baz"/></bean><bean id="bar" class="x.y.Bar"/><bean id="baz" class="x.y.Baz"/>
</beans>

    <constructor-arg><ref bean="bar"/></constructor-arg>

<bean id="exampleBean" class="examples.ExampleBean" factory-method="createInstance"><constructor-arg ref="anotherExampleBean"/><constructor-arg ref="yetAnotherBean"/><constructor-arg value="1"/>
</bean><bean id="anotherExampleBean" class="examples.AnotherBean"/>
<bean id="yetAnotherBean" class="examples.YetAnotherBean"/>

public class ExampleBean {// a private constructorprivate ExampleBean(...) {...}// a static factory method; the arguments to this method can be// considered the dependencies of the bean that is returned,// regardless of how those arguments are actually used.public static ExampleBean createInstance (AnotherBean anotherBean, YetAnotherBean yetAnotherBean, int i) {ExampleBean eb = new ExampleBean (...);// some other operations...return eb;}}

<bean id="exampleBean" class="examples.ExampleBean"><!-- setter injection using the nested ref element --><property name="beanOne"><ref bean="anotherExampleBean"/></property><!-- setter injection using the neater ref attribute --><property name="beanTwo" ref="yetAnotherBean"/><property name="integerProperty" value="1"/>
</bean><bean id="anotherExampleBean" class="examples.AnotherBean"/>
<bean id="yetAnotherBean" class="examples.YetAnotherBean"/>

public class ExampleBean {private AnotherBean beanOne;private YetAnotherBean beanTwo;private int i;public void setBeanOne(AnotherBean beanOne) {this.beanOne = beanOne;}public void setBeanTwo(YetAnotherBean beanTwo) {this.beanTwo = beanTwo;}public void setIntegerProperty(int i) {this.i = i;}}