Uncaught SyntaxError：意外的令牌o-JSON.Parse

Question

我知道这个问题在这里已经提出过很多次了，但是我无法弄清楚代码的错误。 我收到此错误“未捕获的SyntaxError：意外令牌o”

这是我的ajax代码：

$.ajax({
    type: "POST",
    url: "json-http-server.aspx/GetDoctors",
    data: '',
    contentType: "application/json; charset=utf-8",
    dataType: "json",
    success: myFunction,
    failure: function (response) {
    alert("AJAX error");
}
});

这是我的函数，它将解析返回的数据：

function myFunction(response) {
    var arr = JSON && JSON.parse(response) || $.parseJSON(response);
    var out = "";
    out += "<table border='1'>";
    out += "<tr><th>Title</th>";
    out += "<th>Name</th>";
    out += "<th>Gender</th>";
    out += "<th>Address</th>";
    out += "<th>Hospital</th></tr>";
    for (var i = 0; i < arr.length; i++) {
        out += "<tr>";
        out += "<td>";
        out += arr[i].Title;
        out += "</td>";
        out += "<td>";
        out += arr[i].Name;
        out += "</td>";
        out += "<td>";
        out += arr[i].Gender;
        out += "</td>";
        out += "<td>";
        out += arr[i].Address;
        out += "</td>";
        out += "<td>";
        out += arr[i].Hospital;
        out += "</td>";
        out += "</tr>";
    }
    out += "</table>";
    document.getElementById("OutputDiv").innerHTML = out;
}

这是我从Web服务返回的JSON数据：

'[{
    "Title":"Univ. Prof. Dr.",
    "Name":"John",
    "Gender":"Doe", 
    "Address":"Washington DC, USA",
    "Hospital":"Washington General Hospital"
  }
  {
    "Title":"Univ. Prof. Dr.",
    "Name":"Billy",
    "Gender":"Joe",
    "Address":"California, USA",
    "Hospital":"AKH Univ-Kl.f.Innere Med. II"
  }
  {
    "Title":"Univ. Prof. Dr.",
    "Name":"Alex",
    "Gender":"Haize",
    "Address":"Michigan, 2500, USA",
    "Hospital":"Rheuma-SKA Baden der SVA der gew. Wirtschaft"
}]'

Answer 1

  var arr = JSON && JSON.parse(response) || $.parseJSON(response); 

在填充response之前，已经解析了JSON。

（jQuery将在两种情况下执行此操作：如果您指定dataType: 'json' （您可以这样做），或者如果您未指定dataType并且服务器说响应为JSON（应该这样做））。

你是（隐含的）将其转换为字符串（ "[object Object]" ），并试图解析为JSON（它不是）。

删除该行。

Answer 2

您的JSON数据无效， }和{之间缺少逗号（ , ）。

固定：

'[{
    "Title":"Univ. Prof. Dr.",
    "Name":"John",
    "Gender":"Doe", 
    "Address":"Washington DC, USA",
    "Hospital":"Washington General Hospital"
  },
  {
    "Title":"Univ. Prof. Dr.",
    "Name":"Billy",
    "Gender":"Joe",
    "Address":"California, USA",
    "Hospital":"AKH Univ-Kl.f.Innere Med. II"
  },
  {
    "Title":"Univ. Prof. Dr.",
    "Name":"Alex",
    "Gender":"Haize",
    "Address":"Michigan, 2500, USA",
    "Hospital":"Rheuma-SKA Baden der SVA der gew. Wirtschaft"
}]'