一，Spring注入引數-bean 1，在com.cruise.entity包下新建Dao類，屬性name，package com.cruise.entity;public class Dog {     private String name;     public String getName() {        return name;     }     public void setName(String name) {        this.name = name;     } }2，修改People屬性，增加Dog屬性，重新生成get 和set 方法，修改toString()方法，

  @Override     public String toString() {        return "People [id=" + id + ", name=" + name + ", age=" + age + ", dog=" + dog.getName() + "]";     }3，在beans.xml中定義id為dog1，注入屬性值。定義id為people2，注入屬性值， <bean id="dog1" class="com.cruise.entity.Dog">     <property name="name" value="Jack">property> bean> <bean id="people2" class="com.cruise.entity.People">     <property name="id" value="1">property>     <property name="name" value="張三">property>     <property name="age" value="11">property>     <property name="dog" ref="dog1">property> bean>4，Test類中新增測試方法test2()，執行-測試 @Test     public void test2() {        People people2 = (People)CPXAC.getBean("people2");        System.out.println(people2);     }二，Spring注入引數-內部bean1，在beans.xml中新增程式碼，定義people3，注入屬性值，新增內部bean， <bean id="people3" class="com.cruise.entity.People">     <property name="id" value="1">property>     <property name="name" value="張三">property>     <property name="age" value="11">property>     <property name="dog" >        <bean class="com.cruise.entity.Dog">            <property name="name" value="Tom">property>        bean>     property> bean>2，在Test中新增測試方法test3()，執行-測試 @Test     public void test3() {        People people3 = (People)CPXAC.getBean("people3");        System.out.println(people3);     }三，Spring注入引數-null標籤bean1，在beans.xml中新增程式碼，定義people4，注入屬性值null標籤，新增內部bean， <bean id="people4" class="com.cruise.entity.People">     <property name="id" value="1">property>     <property name="name" value="張三">property>     <property name="age" value="11">property>     <property name="dog" >        <null>null>     property> bean>3，修改People類中的toString()方法，否則會報空指標異常 @Override     public String toString() {        return "People [id=" + id + ", name=" + name + ", age=" + age + ", dog=" + dog + "]";     }2，在Test中新增測試方法test4()，執行-測試 @Test     public void test4() {        People people3 = (People)CPXAC.getBean("people4");        System.out.println(people3);     }四，Spring注入引數-級聯屬性引數1，在beans.xml中新增程式碼，定義people5，注入屬性值，新增內部bean， <bean id="people5" class="com.cruise.entity.People">     <property name="id" value="1">property>     <property name="name" value="張三">property>     <property name="age" value="11">property>     <property name="dog.name" value="Jack2">property> bean>2，修改People類中的Dog屬性，修改toString，private Dog dog=new Dog(); @Override     public String toString() {        return "People [id=" + id + ", name=" + name + ", age=" + age + ", dog=" + dog.getName() + "]";     }3，在Test中新增測試方法test5()，執行-測試，測試之後還原People類dog屬性寫法，註釋掉beans.xml中的people5.以防干擾。 @Test     public void test5() {        People people5 = (People)CPXAC.getBean("people5");        System.out.println(people5);     }五，Spring注入引數-集合List屬性引數1，修改People類中屬性，增加一個集合屬性。重新生成toString()方法，get set 方法，private List<String> hobbies = new ArrayList<String>(); @Override     public String toString() {        return "People [id=" + id + ", name=" + name + ", age=" + age + ", dog=" + dog.getName() + ", hobbies=" + hobbies + "]";     }2，在beans.xml中新增程式碼，定義people6，注入屬性值，新增內部bean，將id為people5的bean註釋掉， <bean id="dog1" class="com.cruise.entity.Dog">     <property name="name" value="Jack"></property> </bean>  …… <bean id="people6" class="com.cruise.entity.People">     <property name="id" value="1"></property>     <property name="name" value="張三"></property>     <property name="age" value="11"></property>     <property name="dog" ref="dog1"></property>     <property name="hoggies">        <list>            <value>唱歌</value>            <value>跳舞</value>        </list>     </property> </bean>3，在Test中新增測試方法test6()，執行-測試， @Test     public void test6() {        People people5 = (People)CPXAC.getBean("people6");        System.out.println(people5);     }六，Spring注入引數-集合Set屬性引數1，修改People類中屬性，增加一個Set集合屬性。重新生成toString()方法，get set 方法，private Set<String> loves = new HashSet<String>(); @Override     public String toString() {        return "People [id=" + id + ", name=" + name + ", age=" + age + ", dog=" + dog.getName() + ", hobbies=" + hobbies               + ", loves=" + loves + "]";     }2，在beans.xml中新增程式碼，定義people7，注入屬性值，新增內部bean， <bean id="dog1" class="com.cruise.entity.Dog">     <property name="name" value="Jack"></property> </bean>  …… <bean id="people7" class="com.cruise.entity.People">     <property name="id" value="1"></property>     <property name="name" value="張三"></property>     <property name="age" value="11"></property>     <property name="dog" ref="dog1"></property>     <property name="hoggies">        <list>            <value>唱歌</value>            <value>跳舞</value>        </list>     </property>   <property name="loves">        <set>            <value>唱歌2</value>            <value>跳舞2</value>        </set>     </property> </bean>3，在Test中新增測試方法test7()，執行-測試， @Test     public void test7() {        People people7 = (People)CPXAC.getBean("people7");        System.out.println(people7);     }七，Spring注入引數-集合Map屬性引數1，修改People類中屬性，增加一個Map集合屬性。重新生成toString()方法，get set 方法，private Map<String,String> works = new HashMap<String,String>(); @Override     public String toString() {        return "People [id=" + id + ", name=" + name + ", age=" + age + ", dog=" + dog.getName() + ", hobbies=" + hobbies               + ", loves=" + loves + ", works=" + works + "]";     }2，在beans.xml中新增程式碼，定義people8，注入屬性值，新增內部bean， <bean id="dog1" class="com.cruise.entity.Dog">     <property name="name" value="Jack"></property> </bean>  …… <bean id="people8" class="com.cruise.entity.People">     <property name="id" value="1"></property>     <property name="name" value="張三"></property>     <property name="age" value="11"></property>     <property name="dog" ref="dog1"></property>     <property name="hobbies">        <list>            <value>唱歌</value>            <value>跳舞</value>        </list>     </property>     <property name="loves">        <set>            <value>唱歌2</value>            <value>跳舞2</value>        </set>     </property>     <property name="works">        <map>            <entry>               <key><value>上午</value></key>                <value>寫作業</value>            </entry>            <entry>               <key><value>下午</value></key>                <value>出去玩</value>            </entry>        </map>     </property> </bean>3，在Test中新增測試方法test8()，執行-測試， @Test     public void test8() {        People people7 = (People)CPXAC.getBean("people8");        System.out.println(people7);     }八，Spring注入引數-集合Properties屬性引數1，修改People類中屬性，增加一個集合屬性。重新生成toString()方法，get set 方法，private Properties addresses = new Properties(); @Override     public String toString() {        return "People [id=" + id + ", name=" + name + ", age=" + age + ", dog=" + dog.getName() + ", hobbies=" + hobbies               + ", loves=" + loves + ", works=" + works + ", addresses=" + addresses + "]";     }2，在beans.xml中新增程式碼，定義people9，注入屬性值，新增內部bean， <bean id="dog1" class="com.cruise.entity.Dog">     <property name="name" value="Jack"></property> </bean>  …… <bean id="people9" class="com.cruise.entity.People">     <property name="id" value="1"></property>     <property name="name" value="張三"></property>     <property name="age" value="11"></property>     <property name="dog" ref="dog1"></property>     <property name="hobbies">        <list>            <value>唱歌</value>            <value>跳舞</value>        </list>     </property>     <property name="loves">        <set>            <value>唱歌2</value>            <value>跳舞2</value>        </set>     </property>     <property name="works">        <map>            <entry>               <key><value>上午</value></key>                <value>寫作業</value>            </entry>            <entry>               <key><value>下午</value></key>                <value>出去玩</value>            </entry>        </map>     </property>     <property name="addresses">        <props>            <prop key="地址1">北京</prop>            <prop key="地址2">江蘇</prop>        </props>     </property> </bean>3，在Test中新增測試方法test9()，執行-測試，  @Test     public void test9() {        People people7 = (People)CPXAC.getBean("people9");        System.out.println(people7);     }