property和constructor-arg的使用

一：依赖注入的方式 
  constructor-arg：通过构造函数注入。 
  property：通过setxx方法注入。 

二：constructor-arg的简单使用 
  java代码 
 

    public class Man {

 private String name ;
 private int age;
 private List hobby;
 private Map  friends;
 private Set  set;
 private boolean ifMarried;

 public Man() {

 }

    public Man(String name, int age,List hobby,Map friends,Set    set,boolean ifMarried){
     this.name = name;
     this.age = age;
     this.hobby = hobby;
     this.friends = friends;
     this.set = set;
     this.ifMarried = ifMarried;
    }

    public String getInfo(){

     String info = "姓名："+this.name+"\n年龄:"+this.age+"\n爱好:"+this.hobby+"\n朋友:"+this.friends+"\n婚否:"+this.ifMarried+"\n其他的："+this.set;
        return info;
    }

  xml配置文件 

 <bean id="man" class="com.spring.test.man.Man">
    <constructor-arg value="zzy" index="0" >
    </constructor-arg>

    <constructor-arg value="10" index="1">
    </constructor-arg>

    <constructor-arg>
      <list>
         <value>movie</value>
         <value>music</value>
      </list>
    </constructor-arg>

    <constructor-arg>
       <set>
          <value>Lady is GaGa</value>
          <value>GaGa is Lady</value>
       </set>
    </constructor-arg>

    <constructor-arg>
        <map>
           <entry key="liuhua" value="man"></entry>
           <entry key="xujinglei" value="female"></entry>
        </map>
    </constructor-arg>

    <constructor-arg index="5" value="0">
    </constructor-arg>
 </bean>

最后一个参数ifMarried是一个boolean类型的参数，在配置的时候可以是true/false或者0/1； 

二：property的简单使用 
  java代码： 

  

 public class Doctor {

     private String name;
     private String sex;


     public String getName() {
         return name;
     }


     public void setName(String name) {
         this.name = name;
     }



     public String getSex() {
         return sex;
     }


     public void setSex(String sex) {
         this.sex = sex;
     }


     public void init(){
         System.out.println("88888888888");
     }
     public void init(String name,String sex){
         this.name = name;
         this.sex = sex;
     }
 }

xml配置文件: 

 <bean id="doctor" class="com.spring.test.man.Doctor" init-method="init">
  <property name="name" value="doctor"></property>
  <property name="sex" value="i don't know"></property>
 lt;/bean>

    

在这里我配置了一个init-method="init"表示在容易实例化这个doctor的时候，调用一个Doctor类的init方法，本来还以为可以通过这个init方法来注入要注入的信息，但是尝试过后才知道这个init方法是不能带参数的。property和constructor-arg的使用