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规范、简化Json操作，可选Jackson、FastJson实现。并可在TopNB查看耗时统计信息。

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package io.leopard.json.serialize;

import java.io.IOException;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.BeanProperty;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;

/**
 * 属性详情
 * 
 * @author 谭海潮
 *
 */
public class FieldDetailJsonSerializer extends ContextualJsonSerializer {

	private FieldDetail anno;

	protected BeanProperty beanProperty;

	public FieldDetailJsonSerializer() {
	}

	public FieldDetailJsonSerializer(BeanProperty beanProperty, FieldDetail anno) {
		this.beanProperty = beanProperty;
		this.anno = anno;
	}

	@Override
	public void serialize(Object value, JsonGenerator gen, SerializerProvider serializers) throws IOException, JsonProcessingException {
		// gen.writeObject(value);
		// String fieldName = gen.getOutputContext().getCurrentName();
		// System.err.println("FieldDetailJsonSerializer serialize: className:" + className);
		try {
			Class clazz;
			String className = anno.className();
			if (className.length() <= 0) {
				clazz = anno.using();
			}
			else {
				clazz = Class.forName(className);
			}
			@SuppressWarnings("unchecked")
			JsonSerializer