hijsonutil.java

因为许多人出去吃饭都一个人付帐

package cn.com.sdcncsi.lunch.utils;

import org.hibernate.collection.PersistentSet;
import org.hibernate.proxy.HibernateProxy;
import org.hibernate.proxy.LazyInitializer;
import org.codehaus.jettison.json.JSONException;

public class HiJSONUtil extends JSONUtil {
	private static HiJSONUtil instance = null;

    static public String toJSONString(Object obj) throws JSONException {
        return toJSONString(obj, false);
    }
    
    static public String toJSONString(Object obj, boolean useClassConvert) throws JSONException {
        if(instance == null)
            instance = new HiJSONUtil();
        return instance.getJSONObject(obj, useClassConvert).toString();
    }

    @Override
    protected Object proxyCheck(Object bean) {
        System.out.println("Class is " + bean.getClass().getName());
        if(bean instanceof HibernateProxy) {
            LazyInitializer lazyInitializer = ((HibernateProxy)bean).getHibernateLazyInitializer();
            if(lazyInitializer.isUninitialized()) {
                System.out.println(">>>>>lazyInitializer.getIdentifier()="+ lazyInitializer.getIdentifier());
                return lazyInitializer.getIdentifier();
            }
        }
        if(bean instanceof PersistentSet) {
            return new String[] {}; //忽略hibernate one-to-many
        }
        return bean;
    }


}