jquery - Jquery Ajax POST 中出现 400 bad request 错误

Question

我尝试使用 Jquery 发送 Ajax POST 请求，但遇到 400 bad request 错误。

这是我的代码:

$.ajax({
  type: 'POST',
  url: "http://localhost:8080/project/server/rest/subjects",
  data: {
    "subject:title":"Test Name",
    "subject:description":"Creating test subject to check POST method API",
    "sub:tags": ["facebook:work", "facebook:likes"],
    "sampleSize" : 10,
    "values": ["science", "machine-learning"]
  },
  error: function(e) {
    console.log(e);
  }
});

它说:无法根据请求构建资源。我缺少什么？

Answer 1

最后，我遇到了错误，原因是我需要对发送的 JSON 数据进行字符串化。我必须在 XHR 对象中设置内容类型和数据类型。所以正确的版本在这里:

$.ajax({
  type: 'POST',
  url: "http://localhost:8080/project/server/rest/subjects",
  data: JSON.stringify({
    "subject:title":"Test Name",
    "subject:description":"Creating test subject to check POST method API",
    "sub:tags": ["facebook:work", "facebook:likes"],
    "sampleSize" : 10,
    "values": ["science", "machine-learning"]
  }),
  error: function(e) {
    console.log(e);
  },
  dataType: "json",
  contentType: "application/json"
});

也许它会对其他人有所帮助。