Java开发中遍历Java对象，获取对应的属性和值。主要用到java.lang.reflect.Field这个类
废话不多说，上代码。

//示例类
 public class Host{
    private String ip;
    private int port;
    private String name;
    private List<String> child;
    public String getIp() {
        return ip;
    }
    public void setIp(String ip) {
        this.ip = ip;
    }
    public int getPort() {
        return port;
    }
    public void setPort(int port) {
        this.port = port;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public List<String> getChild() {
        return child;
    }
    public void setChild(List<String> child) {
        this.child = child;
    }
    
}

//
public class ReduceObject {
    public static void main(String[] args){
        Host host= new Host();
        host.setIp("192.168.145.130");
        host.setName("redisNode");
        host.setPort(5000);
        Field [] fields = refrect(host);
        for(int i=0;i<fields.length;i++){
            Field f = fields[i];
            f.setAccessible(true);//设置属性可读
            try {
                System.out.println("host["+f.getName()+"] =  "+f.get(host));
            } catch (IllegalArgumentException e) {
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            }
        }
        
    }
        //获得所有属性数组
    public static Field[] refrect(Host host){
        Class cls = host.getClass();
        Field[] fields = cls.getDeclaredFields();    
        return fields;
    }
}