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

Question

我知道這個問題在這里已經提出過很多次了，但是我無法弄清楚代碼的錯誤。 我收到此錯誤“未捕獲的SyntaxError：意外令牌o”

這是我的ajax代碼：

$.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");
}
});

這是我的函數，它將解析返回的數據：

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;
}

這是我從Web服務返回的JSON數據：

'[{
    "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，已經解析了JSON。

（jQuery將在兩種情況下執行此操作：如果您指定dataType: 'json' （您可以這樣做），或者如果您未指定dataType並且服務器說響應為JSON（應該這樣做））。

你是（隱含的）將其轉換為字符串（ "[object Object]" ），並試圖解析為JSON（它不是）。

刪除該行。

Answer 2

您的JSON數據無效， }和{之間缺少逗號（ , ）。

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"
}]'