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宅小达 提交于 2019-07-22 00:57 +08:00 . 初始化
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<h4 id="javascript">Javascript:</h4>
<pre class="bg-warning" style="padding:20px;"><code>
1.使用eval
var parse_json_by_eval = function(str){
return eval('('+str+')');
}
var value = 1;
var jsonstr = '{"name":"jifeng","company":"taobao","value":++value}';
var json1 = parse_json_by_eval(jsonstr);
console.log(json1);
console.log('value: '+ value);
執行結果:
{ name: 'jifeng', company: 'taobao', value: 2 }
value: 2
2.使用JSON.parse
var parse_json_by_JSON_parse = function(str){
return JSON.parse(str);
}
value = 1;
var jsonstr = '{"name":"jifeng","company":"taobao"}';
var json2 = parse_json_by_JSON_parse(jsonstr);
console.log(json2);
console.log(value);
From:http://www.cnblogs.com/lengyuhong/archive/2012/01/07/2262390.html
</code></pre>
<div>
以上代码来自博客:
<a href="http://www.cnblogs.com/lengyuhong/archive/2012/01/07/2262390.html">http://www.cnblogs.com/lengyuhong/archive/2012/01/07/2262390.html</a>
</div>
<h4 id="php">PHP:</h4>
<pre class="bg-warning" style="padding:20px;"><code>
$json_string='{"id":1,"name":"jb51","email":"admin@jb51.net","interest":["wordpress","php"]} ';
$obj=json_decode($json_string);
echo $obj->name; //prints foo
echo $obj->interest[1]; //prints php
//to array
$obj=json_decode($json_string,true);
echo $obj['name']; //prints foo
echo $obj['interest'][1]; //prints php
</code></pre>
<h4 id="java">Java:</h4>
<pre class="bg-warning" style="padding:20px;"><code>
JSONObject dataJson=new JSONObject("你的Json数据“);
JSONObject response=dataJson.getJSONObject("response");
JSONArray data=response.getJSONArray("data");
JSONObject info=data.getJSONObject(0);
String province=info.getString("province");
String city=info.getString("city");
String district=info.getString("district");
String address=info.getString("address");
System.out.println(province+city+district+address);</code></pre>
<h4 id="csharp">C#:</h4>
<pre class="bg-warning" style="padding:20px;"><code>
使用开源的类库Newtonsoft.Json(下载地址http://json.codeplex.com/)。下载后加入工程就能用。通常可以使用JObject, JsonReader, JsonWriter处理。这种方式最通用,也最灵活,可以随时修改不爽的地方。
(1)使用JsonReader读Json字符串:
[csharp] view plaincopy
string jsonText =@"{""input"" : ""value"",""output"" : ""result""}";
JsonReader reader = new JsonTextReader(newStringReader(jsonText));
while (reader.Read())
{
Console.WriteLine(reader.TokenType + "\t\t" + reader.ValueType+ "\t\t" + reader.Value);
}
(2)使用JsonWriter写字符串:
[csharp] view plaincopy
StringWriter sw = new StringWriter();
JsonWriter writer = new JsonTextWriter(sw);
writer.WriteStartObject();
writer.WritePropertyName("input");
writer.WriteValue("value");
writer.WritePropertyName("output");
writer.WriteValue("result");
writer.WriteEndObject();
writer.Flush();
string jsonText =sw.GetStringBuilder().ToString();
Console.WriteLine(jsonText);
(3)使用JObject读写字符串:
[csharp] view plaincopy
JObject jo = JObject.Parse(jsonText);
string[] values =jo.Properties().Select(item => item.Value.ToString()).ToArray();
(4)使用JsonSerializer读写对象(基于JsonWriter与JsonReader):
数组型数据
[csharp] view plaincopy
string jsonArrayText1 ="[{'a':'a1','b':'b1'},{'a':'a2','b':'b2'}]";
JArray ja =(JArray)JsonConvert.DeserializeObject(jsonArrayText1);
string ja1a =ja[1]["a"].ToString();
//或者
JObject o = (JObject)ja[1];
string oa = o["a"].ToString();
</code></pre>
<h4 id="python">Python:</h4>
<pre class="bg-warning" style="padding:20px;"><code>
import json
data= json.loads('{"ID": "2", "IP":"12.12.12.12", "Port": "3000"}')
print data['ID']
输出结果:"2"
data = json.dumps(data)
print data
输出结果:{"ID": "2", "IP":"12.12.12.12", "Port": "3000"}
</code></pre>
<p>如需更多语言,欢迎联系我们</p>
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