9月30 json工具类

import java.util.List;import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.JSONArray;public class JsonUtils { ???/*** ????* 将List对象序列化为JSON文本 ????*/ ???public static String toJSONString(Object obj) { ???????return JSON.toJSONString(obj); ???} ???????/*** ????* 将字符串转换为传入类型的List ????*/ ???public static <T> List<T> toList(String text, Class<T> clazz){ ???????return JSONArray.parseArray(text, clazz); ???} ???????/*** ????* 将字符串转换为传入类型的List ????*/ ???public static <T> Object toObj(String text, Class<T> clazz){ ???????return JSON.parseObject(text, clazz); ???}}

Student s = Student.getStu(); ???????????????// 将对象转成json字符串 ???????System.out.println(JsonUtils.toJSONString(s)); ???????????????// 将json字符串转成对象 ???????Object s2 = JsonUtils.toObj(JsonUtils.toJSONString(s), Student.class); ???????System.out.println(s2.toString()); ???????????????// 将List 转成json字符串 ???????List<Student> list = new ArrayList<>(); ???????Student stu1 = Student.getStu(); ???????Student stu2 = Student.getStu(); ???????list.add(stu1); ???????list.add(stu2); ???????System.out.println(JsonUtils.toJSONString(list)); ???????????????// 将json字符串转成List ???????List<Student> list2 = JsonUtils.toList(JsonUtils.toJSONString(list), Student.class); ???????for (Student student : list2) { ???????????System.out.println(JsonUtils.toJSONString(student)); ???????}