Javascript 语法错误：JSON 中位置 0 的意外标记 C - Ionic 2 Http GET 请求
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SyntaxError: Unexpected token C in JSON at position 0 - Ionic 2 Http GET request
提问by ewizard
I am trying to perform a GETrequest and retrieve the data from the response.
我正在尝试执行GET请求并从响应中检索数据。
this.http.get('http://localhost:8888/maneappback/more-items.php').subscribe(res => {
console.log(res.json());
}, (err) => {
console.log(err);
});
I am getting the error SyntaxError: Unexpected token C in JSON at position 0. I am also assuming that the error is related to the request.
我收到错误SyntaxError: Unexpected token C in JSON at position 0。我还假设错误与请求有关。
On my server side, I have the data being sent like this (PHP):
在我的服务器端，我有这样发送的数据（PHP）：
echo json_encode($array);
echo json_encode($array);
回答by Gianfrancesco Aurecchia
The message you see is that your JSON response is not formatted correctly
您看到的消息是您的 JSON 响应格式不正确
GOOD JSON:
好的 JSON：
{ "name":"John", "age":31, "city":"New York" }
BAD JSON
错误的 JSON
{ 'name': 'john' }
OR
或者
{ 'name' = 'john' }
In your case, the JSON begins with character C
在您的情况下，JSON 以字符 C 开头
回答by ewizard
I was just neglecting to realize that I still had two echostatements in the script...that is why it wasn't recognized as JSON.
我只是忽略了我echo在脚本中仍然有两个语句......这就是为什么它不被识别为 JSON。
回答by Nicolas Sturm
in my case:
就我而言：
previous with error: JSON.parse("{ createdTimestamp: -1 }")
以前有错误： JSON.parse("{ createdTimestamp: -1 }")
and correct: JSON.parse('{"createdTimestamp":-1}')
并更正： JSON.parse('{"createdTimestamp":-1}')
