需求分析： Person 的name属性和addresss属性在转换为json的时候 需转换为superman 和homeaddress。下面是相应的代码处理部分。

public class Person {

 private String name;
 
 private String address;
 
 private String password;
 
 public String getName() {
 return name;
 }
 public void setName(String name) {
 this.name = name;
 }
 public String getAddress() {
 return address;
 }
 public void setAddress(String address) {
 this.address = address;
 }
 public String getPassword() {
 return password;
 }
 public void setPassword(String password) {
 this.password = password;
 }
 @Override
 public String toString() {
 return "Person [name=" + name + ",address=" + address + ",password=" + password + "]";
 }
} 

import net.sf.json.JSONObject;
import net.sf.json.JsonConfig;
import net.sf.json.processors.PropertyNameProcessor;
import com.heavan.domain.Person;

public class JsonUtil {

	public static void main(String[] args) {
		//属性进行了映射
		// address - homeaddress
		// name - superman
		String bean2Json = bean2Json();
		System.out.println(bean2Json);
		Person json2Bean = json2Bean(bean2Json);
		System.out.println(json2Bean);
	}

	/**
	 * 从对象转换为json
	 * @return
	 */
	private static String bean2Json() {
		
		Person person = new Person();
		person.setAddress("山东");
		person.setName("钓岛是中国的");
		person.setPassword("美丽是大家的");
		JsonConfig jsonConfig = new JsonConfig();

		PropertyNameProcessor processor = new PropertyNameProcessor() {
			@Override
			public String processPropertyName(Class beanClass,String name) {
				if(name.equals("name")){
					return "superman";
				}else if (name.equals("address")) {
					return "homeaddress";
				}
				return name;
			}
		};
		jsonConfig.registerJsonPropertyNameProcessor(Person.class,processor);
		
		JSONObject jsonObject = JSONObject.fromObject(person,jsonConfig);
		return jsonObject.toString();
	}

	/**
	 * 从json 转换为bean
	 * @param json
	 * @return
	 */
	private static Person json2Bean(String json) {
		JsonConfig jsonConfig = new JsonConfig();

		PropertyNameProcessor processor = new PropertyNameProcessor() {
			@Override
			public String processPropertyName(Class beanClass,String name) {
				if (name.equals("homeaddress")) {
					return "address";
				} else if (name.equals("superman")) {
					return "name";
				}
				return name;
			}
		};
		jsonConfig.setRootClass(Person.class);
		jsonConfig.registerJavaPropertyNameProcessor(Person.class,processor);

		JSONObject jsonObject = JSONObject.fromObject(json,jsonConfig);
		Person bean = (Person) JSONObject.toBean(jsonObject,jsonConfig);
		return bean;
	}
}