过滤方法用的是Discuz中的过滤方法！
/// <summary>/// 加载事件/// </summary>/// <param name="sender"></param>/// <param name="e"></param>protected void Page_Load(object sender, EventArgs e){if(!IsPostBack){FileStream fsSteam = new FileStream(Server.MapPath("~/SQLLog.txt"), FileMode.Open); //SQLLog.txt 里面的文本为：今天真\n\\n\b\\\\\\的很"高兴"！StreamReader sr = new StreamReader(fsSteam,System.Text.Encoding.GetEncoding("gb2312"));string message = JsonCharFilter(sr.ReadToEnd()); // 这里需要过滤一下，以保证JSON解析后显示的值与SQLLog.txt中的一模一样。sr.Close();fsSteam.Dispose();string json = "{ IfSuccess : true, Message : '" + message + "' }";this.ltMessage.Text = json;}}/// <summary>/// Json特符字符过滤，参见http://www.json.org//// </summary>/// <param name="sourceStr">要过滤的源字符串</param>/// <returns>返回过滤的字符串</returns>public static string JsonCharFilter(string sourceStr){sourceStr = sourceStr.Replace("\\", "\\\\");sourceStr = sourceStr.Replace("\b", "\\\b");sourceStr = sourceStr.Replace("\t", "\\\t");sourceStr = sourceStr.Replace("\n", "\\\n");sourceStr = sourceStr.Replace("\n", "\\\n");sourceStr = sourceStr.Replace("\f", "\\\f");sourceStr = sourceStr.Replace("\r", "\\\r");return sourceStr.Replace("\"", "\\\"");}
前台代码：
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server"><title></title>
</head>
<body><form id="form1" runat="server"><div><asp:Literal ID="ltCurrentMessage" runat="server" /></div><div id="divMessage"><asp:Literal ID="ltMessage" runat="server" /></div><div><asp:Button ID="btnSubmit" runat="server" Text="提交" OnClick="btnSubmit_Click" /></div></form><script language="javascript" type="text/javascript">///<summary>用正则表达式将前后空格，用空字符串替代。</summary>String.prototype.trim = function(){return this.replace(/(^\s*)|(\s*$)/g, "");}var jsonStr = document.getElementById("divMessage").innerHTML.trim();var jsonObj = eval("(" + jsonStr + ")");alert(jsonObj.IfSuccess);alert(jsonObj.Message);</script>
</body>
</html>
谢谢浏览！
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