javascript - JSON解析失败,带有base64编码图像的Javascript

标签 javascript json base64

我正在尝试解析一个包含base64编码图像的JSON字符串。
我检查了JSON格式,它是正确的。为什么解析失败?它与base64中的特殊字符有关吗?

控制台错误:“ SyntaxError:JSON解析错误:意外的EOF”

我现在所拥有的:

var pic = new XMLHttpRequest();
pic.open("GET",  api+"getimage?"+"userID="+myUserID, true);
pic.send();
var picArray= JSON.parse(pic.response);


JSON响应为:
    { “图片”:“/ 9J / 4AAQSkZJRgABAQAAAQABAAD / 2wCEAAkGBxISEhUSEhIVFRUVFRUVFRUVFRUVFRUVFhUWFhUVFhUYHSggGBolHRUVITEhJSkrLi4uFx8zODMtNygtLisBCgoKDg0OFxAPFy0lHR0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLf / AABEIALsBDgMBIgACEQEDEQH / xAAcAAACAgMBAQAAAAAAAAAAAAAAAQIFAwQGBwj / XAA / EAACAgECAwYEAwUGBQUAAAABAgADEQQhBRIxBhMiQVFhMnGBkQdCoRQjYpKxUnKCosHwM2OD0eEWQ5PC8f / EABgBAQEBAQEAAAAAAAAAAAAAAAABAgME / 8QAHREBAQEAAgIDAAAAAAAAAAAAABEBEiECQTFRYf / aAAwDAQACEQMRAD8A9YAhiSxDEyhYjjhiQRxJYgBHAjiElAQpQxJYixAWI4EwgKEeIQFAxmEBQgY4ChCOAsQhHiAoRwgAihiOAoGPEJQRwhCCEBHiAhHDEMQIAR4ksRSBR4hiEKMQxHCAYijgYCikgIQFiEcMQDEUcJAoR4hiFRhiShKFDEIQCKPEIBAwxCARRwxAUeIRiELEI4SghGBCAo4QxCFCMiAEiiKBjgKOKEAzK / jfGKdJUbrmwo2AHxMfJVHmZvzwb8ReMPqdZYOcNVUxrrAOw5cczfMtnf29pPweocM / EPh92B33dH0tUp / m3X9Z02n1CWDmRldT5qQw + 4nzFyzNpdRZUeap3rb1Rip + 4M1xH05CeFcN / EXiFOxsW4elq5P8y4P9Z1nDPxbqO2o07ofNq2Fi / Y4I / WSar0mGJR8L7YaHUYFepr5j0Vz3bfRXxn6S8BzvIDEI4YgRxCOOBHEI4QFCOEoUWJLEMQAQxCOBGMRmAEBQxHCAYijhiAhHiGI4QopLEiYChAwgBmlxbidempe + 04RBk + ZJJw AB5kkgD5zbJnn / AOMuq5dCqb / vL0G38Ku // wBRJo4HtF2y1WrtLix6qxkJWjsoC / xcpHMx8zOfAmAuVODkH0Iwf1khfN5mYjPAzELhMgIMoic + X6xFW9j + kyGAgQ5c + UseGca1Wn / 4Gosr9FDEr / KFD + k01QnfyHrtJ2rjqOvTfaZ2K7Thv4payvAuSu4bb47tz75Xb / LOs4Z + Keis2tW2g / xLzrn + 8mT9wJ42T / V / ALQ5​​fUZ3 + / tJCvpHhvGNPqBmi + uz2VwT9V6ibs + YOXBBGxHQ9Dn2PlL3hnbDiGnwE1Lso / LB + 9X5ZfJH0IiLX0HCeT8N / FuwYGp0wb1apip / kfIP8wnXcM / ETh92P33dH0uUp / n3X9ZB1UMSFF6OoZGV1PRlIYH5EbTJAUIRwFARwgGIQEcoUIQEAEcUcAixHCApExyJEAMixjmN4EbLJz / afSrqKTWeoKup8wyMGBH2x9ZbX5lPriYR5V2709jCojLgF84XJHw7kjfE2X7LaRkHitrYKMkYdWIG59QM5OP1l3xFihO3lkH2JIP9Jq06xWUsTgDZvLBxLmddDgOE8Mu1LMtCd4VUsQCM4yB59TuJDWaS2k4tres + XMCM / I9DOm7JUojWhfRSPoSNvvH2 + e1xTklgOc4Jzj4Zexyi6g / OZV1A8xO8o4DoGqrSyh1YIoNtT7ucbuynbJ6zieHcIfU6g0UEHd8GwhMKufiPTJwB8zFE6NQMEYBB + / + 3jZ8nOPPOI MdnNVpBzX0si5xz7FSfLBErEvPr / rHQseYHy / 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FcActbKwT + 6eUAj0kdXomfUUucd3ULGx5m1gEU / IKbP5pYwkRU6JGOpvvcFVVUorzsOVR3ljj2LPj / AKYmjoNYa9HbrCDzWGy9QCQSp8NCAe6ivb1Yzd7U2HuDUhw97LQuOo7w4dh / dTnb6Tc1PDkdErI8CNWwA2H7shkB9sqNvaUYLOI20V6dGYWWWNXUebzbHNY2R6Krn6Tev42iOK2VuYqWwAG2BA3wff8AQzU1OhL6iq0kclS2YXzNj8oDfRQ4 / wAUw6DTsdRqLXXA / d1V580RSxYfN7GH + GZ3OlzVtiIxwM6IjCOIyBRQMDAWYRRrAcUDFICEJGFMwEBCVEgYjFHIHzR5kRCBPMRiMawoixHHiEY1rA3wPtJxmKAZizCKBIR5iigSJjzIzW4laVqdlOCFJB98e8uZdGW5KyyF + UspJTOMhiCpK ++ CR9ZmzPK9MTdboLbSXd9U / MzEnZEJUAdFAO + BiepiTfkSEcUcD // Z”, “用户ID”: “2kdv1goo9d3nb29evcova6oi4p”}

最佳答案

您正在尝试在发送请求后立即读取响应。您必须等待响应到达,然后才能尝试阅读它。

var pic = new XMLHttpRequest();
pic.open("GET",  api+"getimage?"+"userID="+myUserID, true);
pic.send();
pic.addEventListener("load", imageHandler);

function imageHandler(event) {
    var picObject = JSON.parse(this.responseText);
    console.log(picObject);
}

关于javascript - JSON解析失败,带有base64编码图像的Javascript,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34641783/

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