json格式示例

案例一：

　　{key:value,key:value}

class Person{
         String firstname = "张";
         String lastname = "三丰";
         Integer age = 100;
      }

      Person p = new Person();
      System.out.println(p.firstname);

转JS：

var person = {"firstname":"张","lastname":"三丰","age":100};

     //取出lastname
     alert(person.lastname);
     //取出age
     alert(person.age);

案例二:
       [{key:value,key:value},{key:value,key:value}]

    Person[] persons = new Person[1];
    Person p0 = new Person("张","三丰",100)；
    Person p1 = new Person("李","四",25)；
    persons[0] = p0;
    persons[1] = p1;
    System.out.println(persons[0].age);
    System.out.println(persons[1].firstname);

转JS：

var persons = [
              　　{"firstname":"张","lastname":"三丰","age":100},
                 {"firstname":"李","lastname":"四","age":25}
               ];
     //取出fistname=李
     alert(persons[1].firstname);
     //取出age=100
     alert(persons[0].age);

案例三：
　　 ｛

　　    "param":[{key:value,key:value},{key:value,key:value}]

　　 ｝

var json = {
                 "baobao":[
                           {"name":"yg",age:22,"addr":"南通"},
                           {"name":"gy",age:22,"addr":"徐州"}
                           ]
             };
     //取name = gy
     alert(json.baobao[1].name);
     //取addr = 南通
     alert(json.baobao[0].addr);
    

案例四：
      {
        "param1":[{key:value,key:value},{key:value,key:value}],
        "param2":[{key:value,key:value},{key:value,key:value}],
        "param3":[{key:value,key:value},{key:value,key:value}]
      }

var json = {
                 "baobao":[
                           {"name":"yg",age:22,"addr":"南通"},
                           {"name":"gy",age:22,"addr":"徐州"}
                           ],
                 "haohao":[{"name":"xh",age:23,"addr":"南京"},
                           {"name":"aj",age:22,"addr":"淮阴"}
                           ]
             };
//取name = gy
alert(json.baobao[1].name);
//取addr = 淮阴
alert(json.haohao[1].addr);

案例五：
      {
        "param1":"value1",
        "param2":{},
        "param3":[{key:value,key:value},{key:value,key:value}]
      }

var json = {
                 "key1":"value1",
                 "key2":{"firstname":"张","lastname":"三丰","age":100},
                "key3":[
                       {"name":"yg",age:22,"addr":"南通"},
                        {"name":"gy",age:22,"addr":"徐州"}
                       ]
     };
     alert(json.key2.firstname);
     alert(json.key3[1].age);