取具有子阵列JSON数组的值的值

我有此JSON响应/取具有子阵列JSON数组的值的值

{ 
    "phweb":{ 
     "name":"PH Web Server", 
     "cpu":"36.7", 
     "ram":"33.0", 
     "hdd":"43.0", 
     "os":{ 
     "osup":"2 days, 23 hours, 5 minutes and 34 seconds", 
     "osstat":"0" 
     }, 
     "apache":{ 
     "apachestat":"0", 
     "apacheup":"33 days, 2 hours, 9 minutes and 16 seconds" 
     }, 
     "sql":{ 
     "sqlstat":"0", 
     "sqlup":"154 days, 2 hours, 16 minutes and 53 seconds" 
     } 
    }, 
    "phdbm":{ 
     "name":"PH DBM Server", 
     "cpu":"15.9", 
     "ram":"10.7", 
     "hdd":"23.7", 
     "os":{ 
     "osup":"2 days, 23 hours, 6 minutes and 21 seconds", 
     "osstat":"0" 
     }, 
     "apache":{ 
     "apachestat":"0", 
     "apacheup":"103 days, 4 hours, 43 minutes and 56 seconds" 
     }, 
     "sql":{ 
     "sqlstat":"0", 
     "sqlup":"12 days, 4 hours, 43 minutes and 42 seconds" 
     } 
    } 
}

，我可以取使用

$.each(response, function(index, value){ 
    console.log(index + " " + value); 
});

每个值如何可以取的值具有子数组值的响应值，例如

 "os":{ 
     "osup":"2 days, 23 hours, 6 minutes and 21 seconds", 
     "osstat":"0" 
     },

的“phweb”指数

（假设我想从“phweb”的“操作系统”的“osup”？我怎么能或检查其空它确实存在（以避免错误）？

来源

2015-10-12 Juliver Galleto

这里没有列，只是对象。因此你可以使用'response.phweb.os'来访问嵌套对象。如果没有匹配的属性，它将是'未定义的' –

首先，它是JSON object不是JSON array。

可以使用key直接访问它。

使用变量名称，如obj和使用.运营商，关键就在k的值安永。

在下面例子是obj.phweb.os这意味着物镜是具有多个关键值对包括关键phweb和同为phweb和os JSON对象。

记住：JSON对象具有key value和{}包裹而阵列具有索引和[]包裹。

var obj = { 
 
    "phweb":{ 
 
     "name":"PH Web Server", 
 
     "cpu":"36.7", 
 
     "ram":"33.0", 
 
     "hdd":"43.0", 
 
     "os":{ 
 
     "osup":"2 days, 23 hours, 5 minutes and 34 seconds", 
 
     "osstat":"0" 
 
     }, 
 
     "apache":{ 
 
     "apachestat":"0", 
 
     "apacheup":"33 days, 2 hours, 9 minutes and 16 seconds" 
 
     }, 
 
     "sql":{ 
 
     "sqlstat":"0", 
 
     "sqlup":"154 days, 2 hours, 16 minutes and 53 seconds" 
 
     } 
 
    }, 
 
    "phdbm":{ 
 
     "name":"PH DBM Server", 
 
     "cpu":"15.9", 
 
     "ram":"10.7", 
 
     "hdd":"23.7", 
 
     "os":{ 
 
     "osup":"2 days, 23 hours, 6 minutes and 21 seconds", 
 
     "osstat":"0" 
 
     }, 
 
     "apache":{ 
 
     "apachestat":"0", 
 
     "apacheup":"103 days, 4 hours, 43 minutes and 56 seconds" 
 
     }, 
 
     "sql":{ 
 
     "sqlstat":"0", 
 
     "sqlup":"12 days, 4 hours, 43 minutes and 42 seconds" 
 
     } 
 
    } 
 
} 
 

 
console.log(obj.phweb.os);

来源

2015-10-12 09:44:57

取具有子阵列JSON数组的值的值

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