AaA*_*AaA 7 javascript c# json .net-4.0 fastjson
我陷入了一种不可能的境地.我有来自外太空的JSON(他们无法改变它).这是JSON
{
user:'180111',
title:'I\'m sure "E pluribus unum" means \'Out of Many, One.\' \n\nhttp://en.wikipedia.org/wiki/E_pluribus_unum.\n\n\'',
date:'2007/01/10 19:48:38',
"id":"3322121",
"previd":112211,
"body":"\'You\' can \"read\" more here [url=http:\/\/en.wikipedia.org\/?search=E_pluribus_unum]E pluribus unum[\/url]'s. Cheers \\*/ :\/",
"from":"112221",
"username":"mikethunder",
"creationdate":"2007\/01\/10 14:04:49"
}
我说,"它远不是一个有效的JSON".他们的反应是"嗯!但是Javascript可以毫无怨言地阅读它":
<html>
<script type="text/javascript">
var obj = {"PUT JSON FROM UP THERE HERE"};
document.write(obj.title);
document.write("<br />");
document.write(obj.creationdate + " " + obj.date);
document.write("<br />");
document.write(obj.body);
document.write("<br />");
</script>
<body>
</body>
</html>
问题
我应该通过.NET(4)读取和解析这个字符串,它破坏了Json.org的 C#部分中提到的14个库中的3个(没有尝试其余部分).为了解决问题,我编写了以下函数来解决单引号和双引号的问题.
public static string JSONBeautify(string InStr){
bool inSingleQuote = false;
bool inDoubleQuote = false;
bool escaped = false;
StringBuilder sb = new StringBuilder(InStr);
sb = sb.Replace("`", "<°)))><"); // replace all instances of "grave accent" to "fish" so we can use that mark later.
// Hopefully there is no "fish" in our JSON
for (int i = 0; i < sb.Length; i++) {
switch (sb[i]) {
case '\\':
if (!escaped)
escaped = true;
else
escaped = false;
break;
case '\'':
if (!inSingleQuote && !inDoubleQuote) {
sb[i] = '"'; // Change opening single quote string markers to double qoute
inSingleQuote = true;
} else if (inSingleQuote && !escaped) {
sb[i] = '"'; // Change closing single quote string markers to double qoute
inSingleQuote = false;
} else if (escaped) {
escaped = false;
}
break;
case '"':
if (!inSingleQuote && !inDoubleQuote) {
inDoubleQuote = true; // This is a opening double quote string marker
} else if (inSingleQuote && !escaped) {
sb[i] = '`'; // Change unescaped double qoute to grave accent
} else if (inDoubleQuote && !escaped) {
inDoubleQuote = false; // This is a closing double quote string marker
} else if (escaped) {
escaped = false;
}
break;
default:
escaped = false;
break;
}
}
return sb.ToString()
.Replace("\\/", "/") // Remove all instances of escaped / (\/) .hopefully no smileys in string
.Replace("`", "\\\"") // Change all "grave accent"s to escaped double quote \"
.Replace("<°)))><", "`") // change all fishes back to "grave accent"
.Replace("\\'","'"); // change all escaped single quotes to just single quote
}
现在JSONlint只抱怨属性名称,我可以使用JSON.NET和SimpleJSON库来解析JSON之上.
题
我确信我的代码不是修复提到的JSON的最佳方法.有没有我的代码可能会破坏的情况？有没有更好的方法呢？
您需要通过JavaScript运行它.在.net中启动JavaScript解析器.将字符串作为JavaScript的输入并使用JavaScript的native JSON.stringify来转换:
obj = {
"user":'180111',
"title":'I\'m sure "E pluribus unum" means \'Out of Many, One.\' \n\nhttp://en.wikipedia.org/wiki/E_pluribus_unum.\n\n',
"date":'2007/01/10 19:48:38',
"id":"3322121",
"previd":"112211",
"body":"\'You\' can \"read\" more here [url=http:\/\/en.wikipedia.org\/?search=E_pluribus_unum]E pluribus unum[\/url]'s. Cheers \\*/ :\/",
"from":"112221",
"username":"mikethunder",
"creationdate":"2007\/01\/10 14:04:49"
}
console.log(JSON.stringify(obj));
document.write(JSON.stringify(obj));请记住,您获得的字符串(或更确切的对象)是无效的JSON,无法使用JSON库进行解析.它需要首先转换为有效的JSON.但它是有效的JavaScript.
要完成此答案:您可以JavaScriptSerializer在.Net中使用.对于此解决方案,您将需要以下程序集:
System.Web.Script.Serialization
var webClient = new WebClient();
string readHtml = webClient.DownloadString("uri to your source (extraterrestrial)");
var a = new JavaScriptSerializer();
Dictionary<string, object> results = a.Deserialize<Dictionary<string, object>>(readHtml);