javascript - 无法解析包含 unicode 十六进制字符的 JSON 字符串

Question

var mystring = '{"Customers":[{"CustomerCity":"Zaragoza","CustomerFName":"Ana","CustomerAddress":"C/ El Temple, 9 2\\xbaB","CustomerCountry":"es"}]}';

var myparsestring = JSON.parse(mystring);

错误:

Unexpected token x in JSON

Answer 1

那是无效的 JSON，请参阅字符串规则 on json.org . JSON 中没有 \x 转义。 \xbaB 应该是一个 unicode 转义，\u0baB(注意必须正好有四个十六进制数字):

var mystring ='{"Customers":[{"CustomerCity":"Zaragoza","CustomerFName":"Ana","CustomerAddress":"C/ El Temple, 9 2\\u0baB","CustomerCountry":"es"}]}';

var obj = JSON.parse(mystring);
console.log(obj);

您可以尝试预处理字符串:

mystring = mystring.replace(/\\x([0-9a-f]{1,4})/gi, function(m, c0) {
    return "\\u" + ("0000" + c0).slice(-4);
});

var mystring ='{"Customers":[{"CustomerCity":"Zaragoza","CustomerFName":"Ana","CustomerAddress":"C/ El Temple, 9 2\\xbaB","CustomerCountry":"es"}]}';

// Fixing it
mystring = mystring.replace(/\\x([0-9a-f]{1,4})/gi, function(m, c0) {
    return "\\u" + ("0000" + c0).slice(-4);
});

var obj = JSON.parse(mystring);
console.log(obj);

...但实际上，修复 JSON 的源以生成有效的 JSON 会好得多，而以上是一个非常幼稚的修复。