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>