如何从json获取值并在javascript中显示它们

问题描述：

我想从网页上获取json。页面上的json格式为

I want to get json from a web page. The json on the page is in the format

[{"ID":"151032",
  "user":"UsersName",
  "message":"This is a message.",
  "date":"1293452007",
  "replies":"1",
  "categories":false,
  "categoriesArray":[],
  "lat":"0.000000000000000",
  "lng":"0.000000000000000"}]

如何获得用户，消息， ID 和从JSON回复并通过javascript在另一个网页上显示？

How can I get user, message, ID and replies from the JSON and display it on another webpage via javascript?

示例：hello UsersName您的Id是：151032，您的消息是：这是一条消息。它有1个回复。

Example: hello UsersName your Id is: 151032 and your message is: This is a message. it has 1 replies.

注意：这将有多套，即

[{"ID":"151032",
  "user":"UsersName1",
  "message":"This is a message.",
  "date":"1293452007",
  "replies":"1",
  "categories":false,
  "categoriesArray":[],
  "lat":"0.000000000000000",
  "lng":"0.000000000000000"},
 {"ID":"151033",
  "user":"UsersName2",
  "message":"This is another message.",
  "date":"1293452007",
  "replies":"2",
  "categories":false,
  "categoriesArray":[],
  "lat":"0.000000000000000",
  "lng":"0.000000000000000"}]

答

使用 JSON.parse 然后访问属性，如普通对象属性。例如，

Use JSON.parse and then access the properties like normal object properties. E.g.

var msgs = JSON.parse(json);

for(var i = 0, l = msgs.length; i < l; i++) {
    var msg = msgs[i];
    var div = document.createElement('div');
    div.innerHTML = 'Hello ' + msg.user + ' your Id is: ' + msg.ID + 'and your message is: ' + msg.message + ' it has ' + msg.replies + ' replies';
    document.body.appendChild(div);
}

工作 DEMO

如何从json获取值并在javascript中显示它们

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