关于JSON详解编程语言

private List Person persons = new ArrayList Person // List private Map map = new HashMap(); // Map public String getTitle() { return title; public void setTitle(String title) { this.title = title; public String getAuthor() { return author; public void setAuthor(String author) { this.author = author; public float getPrice() { return price; public void setPrice(float price) { this.price = price; public String getPublication() { return publication; public void setPublication(String publication) { this.publication = publication; public List Person getPersons() { return persons; public void setPersons(List Person persons) { this.persons = persons; public Map getMap() { return map; public void setMap(Map map) { this.map = map; public static void main(String[] args) throws ParseException { JSONTest mj = new JSONTest(); // 日期设置 Date d = new Date(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); String date = sdf.format(d); // 为属性设置值 mj.setTitle("乔布斯传记"); mj.setAuthor("未知"); mj.setPrice(100.0f); mj.setPublication(date); // 设置List List Person list = new ArrayList Person list.add(new Person("zhangsan", 20, date)); mj.setPersons(list); // 设置Map Map map = new HashMap(); map.put("a", "i am a"); map.put("b", "i am b"); mj.setMap(map); //调用JSONArray.fromObject()方法 转化为JSON对象 JSONArray jsons = JSONArray.fromObject(mj); System.out.println(jsons.toString());

在使用JSON时 不只是引入一个JSON包就可以的 不然会报java.lang.ClassNotFoundException:异常

JSON所依赖jar包如下(共6个)

commons-beanutils-1.8.3.jar

commons-lang-2.1.jar

ezmorph-1.0.2.jar

json-lib-2.4-jdk15.jar

如果出现如下错误 说明还缺少如下包

java.lang.NoClassDefFoundError: org/apache/commons/collections/map/ListOrderedMap

commons-collections-3.2.jar

java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory

commons-logging-1.1.1.jar

原创文章，作者：Maggie-Hunter，如若转载，请注明出处：https://blog.ytso.com/14268.html

cjava