Json物件和陣列 格式,取值,特殊屬性名取值:(處理方式和EL取值一樣: 物件["屬性名"])
阿新 • • 發佈:2019-02-09
程式碼:已測。
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> <script type="text/javascript"> //1、寫 JSON 資料 var j1 = {"name":"張三","age":18,"add-ress":"順義"};//JSON 格式的物件 var j2 = ["葫蘆娃","凹凸曼","妞妞","饅頭"];//JSON格式陣列==###=這樣也可以.不是都是鍵值對格式(那是json物件)。 //2、怎麼讀? //==######=【注意json名稱中有特殊字元的Key,取值時特殊處理:j1['add-ress']】; //==######=【EL表示式 裡也是這樣。?===${requestScope["name.errors"]}:相當於getAttribute("name.errors")】 alert(j1.name + " " + j1.age + " " + j1['add-ress']+ " " + j1["add-ress"]); alert(j2[0] + j2[1] + j2[2]); //3、複合使用 var j3 = [{"name":"huluwa","age":18},{"name":"饅頭","age":2},{"name":"妞妞","age":2}]; alert(j3[1].age); </script> </head> <body> </body> </html>