jackon的jar包下载地址：

http://repo1.maven.org/maven2/com/fasterxml/jackson/

需要下载core里面的3个jar包

测试案例

package com.gyarmy.javabeen;



import java.util.Date;



import com.fasterxml.jackson.annotation.JsonIgnore;

import com.fasterxml.jackson.core.JsonProcessingException;

import com.fasterxml.jackson.databind.ObjectMapper;



public class Customer {

	

	

	

	public Customer(String name, String id) {

		super();

		this.name = name;

		this.id = id;

	}





	private String name;

	private String id;

	

	public String getName() {

		return name;

	}

	public void setName(String name) {

		this.name = name;

	}

	public String getId() {

		return id;

	}

	public void setId(String id) {

		this.id = id;

	}

	

	public String getCity(){

		

		return "Beijing";

	}

	@JsonIgnore

	public String getBirth(){

		return "1990-12-21";

	}

	

	

	public static void main(String[] args) throws JsonProcessingException {

		

		ObjectMapper mapper = new ObjectMapper();

		//mapper

		Customer customer = new Customer("AtGuigu", "1001");

		String jsonStr = mapper.writeValueAsString(customer);

		System.out.println(jsonStr);

		

	}

	

}