通过jquery ajax发送多个数据

var data = {
  key1: value1,
  key2: value2,
  key3: value3
};

$.ajax({
  url: 'your-url',
  type: 'POST',
  data: JSON.stringify(data),
  contentType: 'application/json',
  success: function(response) {
    // 处理成功响应
  },
  error: function(xhr, status, error) {
    // 处理错误响应
  }
});

var formData = new FormData();
formData.append('key1', value1);
formData.append('key2', value2);
formData.append('key3', value3);

$.ajax({
  url: 'your-url',
  type: 'POST',
  data: formData,
  processData: false,
  contentType: false,
  success: function(response) {
    // 处理成功响应
  },
  error: function(xhr, status, error) {
    // 处理错误响应
  }
});