JSON 中字符串文字中的錯誤控制字符位於位置 197 錯誤

Question

Bad control character in string literal in JSON at position 197 錯誤是我在嘗試解析此 json 字符串時得到的：

var obj = JSON.parse('[{"name":"Charles freed from Nepal jail","content":"A French serial killer known as The Serpent, convicted of several tourist murders in Asia in the 1970s, has been released from a Nepalese prison.\r\n\r\nCharles Sobhraj, 78, was freed after a court ruled in favour of his age and good behaviour.\r\n\r\nHe spent 19 years in jail in Nepal for killing two North Americans in 1975.","id":"1"}]');

我真的不知道我做錯了什么。

我肯定知道，如果我嘗試在沒有換行符的情況下解析 json，它就可以正常工作，但是當我嘗試使用換行符來解析內容時，它就不起作用了。 我不確定這里有什么問題。

Answer 1

問題是你必須用另一個斜線轉義你的換行符，如果你為你工作，你可以贊成這個答案，例如 \r\n

var obj = JSON.parse('[{"name":"Charles freed from Nepal jail","content":"A French serial killer known as The Serpent, convicted of several tourist murders in Asia in the 1970s, has been released from a Nepalese prison.\\r\\n\\r\\nCharles Sobhraj, 78, was freed after a court ruled in favour of his age and good behaviour.\\r\\n\\r\\nHe spent 19 years in jail in Nepal for killing two North Americans in 1975.","id":"1"}]')

Answer 2

你只需要寫雙\\

   var obj = JSON.parse(`[{"name":"Charles freed from Nepal jail","content":"A French serial killer known as The Serpent, convicted of several tourist murders in Asia in the 1970s, has been released from a Nepalese prison.\\r\\n\\r\\nCharles Sobhraj, 78, was freed after a court ruled in favour of his age and good behaviour.\\r\\n\\r\\nHe spent 19 years in jail in Nepal for killing two North Americans in 1975.","id":"1"}]`);

Answer 3

錯誤消息“字符串文字中的錯誤控制字符”通常表示您嘗試將其解析為 JSON 的字符串中存在無效字符。

在這種情況下，問題似乎是由數組中第一個對象的“content”屬性中存在“\r”（回車）和“\n”（換行）字符引起的。 這些字符在 JSON 字符串中是不允許的，必須刪除或轉義才能成功解析字符串。

要修復此錯誤，您可以使用 String.replace() 方法從“content”屬性中刪除“\r”和“\n”字符：

var obj = JSON.parse('[{"name":"Charles freed from Nepal jail","content":"A French serial killer known as The Serpent, convicted of several tourist murders in Asia in the 1970s, has been released from a Nepalese prison. Charles Sobhraj, 78, was freed after a court ruled in favour of his age and good behaviour. He spent 19 years in jail in Nepal for killing two North Americans in 1975.","id":"1"}]'.replace(/[\r\n]/g, ''));

或者，您可以通過在它們之前添加反斜杠來轉義 '\r' 和 '\n' 字符：

var obj = JSON.parse('[{"name":"Charles freed from Nepal jail","content":"A French serial killer known as The Serpent, convicted of several tourist murders in Asia in the 1970s, has been released from a Nepalese prison.\\r\\n\\r\\nCharles Sobhraj, 78, was freed after a court ruled in favour of his age and good behaviour.\\r\\n\\r\\nHe spent 19 years in jail in Nepal for killing two North Americans in 1975.","id":"1"}]');
Either of these approaches should allow you to parse the JSON string successfully.