使用Java 语言可以方便的把任意对象转换成json格式的数据

1、首先要有 jackson-all-1.8.1.jar包 的支持

2、接下来就是一个简单的demo 

import java.util.ArrayList;import java.util.List;import org.codehaus.jackson.map.ObjectMapper;public class SqlToJson {    public static void main(String[] args) {        List<Person> arrList = new ArrayList<Person>();        Person person = new Person("kang", 24);        arrList.add(person);        String str = null;        try {            str = gnerateJsonFromObject(arrList);        } catch (Exception e) {            e.printStackTrace();        }        System.out.println(str);    }    public static String gnerateJsonFromObject(Object object) throws Exception {        ObjectMapper mapper = new ObjectMapper();        return mapper.writeValueAsString(object);    }}

3、输出结果：

[{"age":24,"name":"kang"}]

4、jackson-all-1.8.1.jar 包的下载