Subject.java
复制代码代码如下:
package _20140416_;
import java.util.List;
public interface Subject {
public String say(String name,int age);
public List<Person> getAllList(String name);
}
RealSubject.java
复制代码代码如下:
package _20140416_;
import java.util.ArrayList;
import java.util.List;
public class RealSubject implements Subject {
private String name;
public RealSubject(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public String say(String name, int age) {
return "名字:" + name + "_年龄:" + age;
}
@Override
public List<Person> getAllList(String name) {
List<Person> list = new ArrayList<Person>();
list.add(new Person("A", 20));
list.add(new Person("B", 20));
list.add(new Person("C", 20));
list.add(new Person("D", 20));
System.out.println(name);
return list;
}
@Override
public int hashCode() {
return 10010;
}
@Override
public boolean equals(Object obj) {
if(obj instanceof RealSubject){
RealSubject real = (RealSubject)obj;
System.out.println("getName():"+real.getName());
System.out.println("this.name:"+this.name);
if(real.getName()==this.name){
System.out.println("相同");
}else{
System.out.println("不相同");
}
}
return true;
}
}
MyInvercationHander.java
复制代码代码如下:
package _20140416_;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
public class MyInvercationHander implements InvocationHandler{
private Object obj;
public Object bind(Object obj){
this.obj=obj;
return Proxy.newProxyInstance(obj.getClass().getClassLoader(),obj.getClass().getInterfaces(),this);
}
@Override
public Object invoke(Object proxy, Method method, Object[] args)
throws Throwable {
Object temp = method.invoke(this.obj, args);
//这里做切面操作 比如我要加功能
System.out.println("方法之前！");
return temp;
}
}
Person.java
复制代码代码如下:
package _20140416_;
public class Person {
private String name;
private int age;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public Person(String name, int age) {
super();
this.name = name;
this.age = age;
}
}
MainTest.java
复制代码代码如下:
package _20140416_;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
public class MainTest {
public static void main(String[] args) {
Subject subject = (Subject) new MyInvercationHander().bind(new RealSubject("中国"));
System.out.println(subject.say("莫建锋",22));
System.out.println(subject.getAllList("张三"));
Map<String,Integer> myMap = new HashMap<String, Integer>();
myMap.put("A",1);
myMap.put("B",2);
myMap.put("C",3);
myMap.put("D",4);
myMap.put("E",5);
Set<Map.Entry<String,Integer>> myEntrySet = myMap.entrySet();
Iterator<Map.Entry<String,Integer>> it = myEntrySet.iterator();
while(it.hasNext()){
Map.Entry<String,Integer> entry = it.next();
System.out.print(entry.getKey()+":");
System.out.println(entry.getValue());
}
System.out.println(new RealSubject("中国").hashCode());
System.out.println(new RealSubject("中国").equals(new RealSubject("中dd国")));
String info = new String("1");
String info1 = new String("1");
System.out.println(new Integer('1'));
System.out.println(info.hashCode());
System.out.println(info1.hashCode());
System.out.println(info==info1);
System.out.println(info.equals(info1));
short i = 1;
System.out.println(i);
}
}