使用JavaScript浏览JSON

时间:2013-01-04 03:22:25

标签: javascript json

好的,我一直在搜索这个网站,找到类似或有启发性的东西,但我完全卡住了。我得到一些有效的JSON,需要解析它来提取价格。我没有走得太远。

这是JSON:

{
  "result": "success",
  "prices": {
    "vdc": {
      "monthly": "1.00"
    },
    "network": {
      "private": {
        "monthly": "2.00"
      },
      "public": {
        "\/22 (1,111 IP Addresses)": {
          "monthly": "3.00"
        },
        "\/21 (2,222 IP Addresses)": {
          "monthly": "4.00"
        },
        "\/20 (3,333 IP Addresses)": {
          "monthly": "5.00"
        },
        "\/19 (5,555 IP Addresses)": {
          "monthly": "6.00"
        },
        "\/18 (6,666 IP Addresses)": {
          "monthly": "7.00"
        },
        "\/17 (7,777 IP Addresses)": {
          "monthly": "8.00"
        },
        "\/16 (8,888 IP Addresses)": {
          "monthly": "9.00"
        },
        "\/25 (111 IP Addresses)": {
          "monthly": "10.00"
        },
        "\/26 (55 IP Addresses)": {
          "monthly": "11.00"
        },
        "\/27 (22 IP Addresses)": {
          "monthly": "12.00"
        },
        "\/28 (11 IP Addresses)": {
          "monthly": "13.00"
        },
        "\/29 (5 IP Addresses)": {
          "monthly": "14.00"
        },
        "\/23 (900 IP Addresses)": {
          "monthly": "15.00"
        },
        "\/24 (333 IP Addresses)": {
          "monthly": "16.00"
        }
      }
    },
    "blocks": {
      "22": {
        "monthly": "17.00"
      },
      "21": {
        "monthly": "18.00"
      },
      "20": {
        "monthly": "19.00"
      },
      "19": {
        "monthly": "20.00"
      },
      "18": {
        "monthly": "21.00"
      },
      "17": {
        "monthly": "22.00"
      },
      "16": {
        "monthly": "23.00"
      },
      "25": {
        "monthly": "24.00"
      },
      "26": {
        "monthly": "25.00"
      },
      "27": {
        "monthly": "28.00"
      },
      "28": {
        "monthly": "29.00"
      },
      "29": {
        "monthly": "30.00"
      },
      "23": {
        "monthly": "24.00"
      },
      "24": {
        "monthly": "25.00"
      }
    },
    "server": {
      "cpu": {
        "monthly": "26.00"
      },
      "ram": {
        "monthly": "27.00"
      }
    },
    "volume": {
      "gb": {
        "monthly": "28.00"
      }
    },
    "snapshot": {
      "gb": {
        "monthly": "29.00"
      }
    }
  }
}

在jsonlint [dot] com进行测试和验证。

经过多次尝试,测试,尝试,敲击我的键盘,尝试...这是我现在拥有的,但它没有产生预期的结果(我会告诉你那些是什么,就在代码片段之后)。

function gp(x){ 
    for(var i in x){ 
        console.log('700: ',  x[i] );

        if(x[i] != 'success'){
            console.log(733);
            console.log(x[i]);

            for(var j in x[i]){
                console.log(736);
                console.log(x[i][j]);
            }
        }
     }
}

在控制台中,我看到类似这样的内容:

enter image description here

我真正希望看到(或查找或解析)的内容是,例如,“volume”元素中“gb”的月价(或者是项目?)。

理想情况下,我想找到“音量”,“ram”和“cpu” - 验证它是音量,内存和CPU - 然后获得每月价格。我确实用JSON解析尝试了一些东西,但很明显,我还没有掌握它。

非常感谢任何帮助。

2 个答案:

答案 0 :(得分:4)

如果你想找到对象“volume”,“ram”和“cpu”这很简单:

var volume = x.prices.volume;
var ram = x.prices.server.ram;
var cpu = x.prices.server.cpu;

或者您可以直接使用它们:

console.log(x.prices.volume);

如果您想查找月度价格:

var prices = x.prices;
console.log('volume, monthly=', prices.volume.gb.monthly);
console.log('cpu, monthly=', prices.server.cpu.monthly);
console.log('ram, monthly=', prices.server.ram.monthly);

Javascript对象非常简单,只有2种语法可供访问:

// If the key you're accessing is a constant (hardcoded):
object.key = value;

// If the key you're accessing is stored in another variable:
var k = "key";
object[k] = value;

// Alternatively:
object["key"] = value;

答案 1 :(得分:1)

我只是有点困惑,但这只是一个例子。将您的json保存到变量中,然后沿着具有节点名称的树向下(除非没有任何变量)。

这应该是每月的量

 json.prices.volume.gb.monthly 

http://jsfiddle.net/PKUBA/