android工厂类

package com.ithm.lotteryhm28.util;import java.io.IOException;import java.util.Properties;import com.ithm.lotteryhm28.engine.UserEngine;/** * 工厂类 * @author Administrator * */public class BeanFactory {    // 依据配置文件加载实例    private static Properties properties;    static{        properties=new Properties();        // bean.properties必须在src的跟目录下        try {            properties.load(BeanFactory.class.getClassLoader().getResourceAsStream("bean.properties"));        } catch (IOException e) {            e.printStackTrace();        }    }    /** * 加载需要的实现类 * @param clazz * @return */    public static<T> T getImpl(Class<T> clazz)    {        String key=clazz.getSimpleName();//clazz.getName()        String className = properties.getProperty(key);        try {            return (T) Class.forName(className).newInstance();        } catch (Exception e) {            e.printStackTrace();        }        return null;    }}

UserEngine=com.sdingba.xxxx.su.impl.UserEngineImpl

    UserEngine engine = BeanFactory.getImpl(UserEngine.class);

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