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Spring中constructor-arg 跟 property

发布时间: 2012-06-29 15:48:46 作者: rapoo

Spring中constructor-arg 和 property 属性

1、constructor-arg 和 property是两种不同的依赖注入的方式:

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constructor-arg:通过构造函数注入。


?property:通过setxx方法注入。?

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2、举例:

(1)、constructor-arg

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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;    }}   

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(2)、property:

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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;}}

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XML配置文件:

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<bean id="appkindImgService" ref="appkindImgDao" /><property name="appkindImgDao" ref="appkindImgDao" /></bean>

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