CURL *curl;
CURLcode res;
curl = curl_easy_init();
if(curl) {
  curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "GET");
  curl_easy_setopt(curl, CURLOPT_URL, "https://api.gugudata.com/metadata/ceemajorline?appkey=APPKEY&pageindex=1&pagesize=10&enrollprovince=&schoolname=&majorname=&majorNameStrict=false&specialId=&year=0&min=0&batchname=&typename=&schooluuid=&minrange=&subjectSelection=&sort=");
  curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
  curl_easy_setopt(curl, CURLOPT_DEFAULT_PROTOCOL, "https");
  struct curl_slist *headers = NULL;
  curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
  res = curl_easy_perform(curl);
}
curl_easy_cleanup(curl);

var requestOptions = {
  method: 'GET',
  redirect: 'follow'
};
fetch("https://api.gugudata.com/metadata/ceemajorline?appkey=APPKEY&pageindex=1&pagesize=10&enrollprovince=&schoolname=&majorname=&majorNameStrict=false&specialId=&year=0&min=0&batchname=&typename=&schooluuid=&minrange=&subjectSelection=&sort=", requestOptions)
  .then(response => response.text())
  .then(result => console.log(result))
  .catch(error => console.log('error', error));

var client = new RestClient("https://api.gugudata.com/metadata/ceemajorline?appkey=APPKEY&pageindex=1&pagesize=10&enrollprovince=&schoolname=&majorname=&majorNameStrict=false&specialId=&year=0&min=0&batchname=&typename=&schooluuid=&minrange=&subjectSelection=&sort=");
client.Timeout = -1;
var request = new RestRequest(Method.GET);
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);

package main
import (
  "fmt"
  "net/http"
  "io/ioutil"
)
func main() {
  url := "https://api.gugudata.com/metadata/ceemajorline?appkey=APPKEY&pageindex=1&pagesize=10&enrollprovince=&schoolname=&majorname=&majorNameStrict=false&specialId=&year=0&min=0&batchname=&typename=&schooluuid=&minrange=&subjectSelection=&sort="
  method := "GET"
  client := &http.Client {
  }
  req, err := http.NewRequest(method, url, nil)
  if err != nil {
    fmt.Println(err)
  }
  res, err := client.Do(req)
  defer res.Body.Close()
  body, err := ioutil.ReadAll(res.Body)
  fmt.Println(string(body))
}

OkHttpClient client = new OkHttpClient().newBuilder()
  .build();
Request request = new Request.Builder()
  .url("https://api.gugudata.com/metadata/ceemajorline?appkey=APPKEY&pageindex=1&pagesize=10&enrollprovince=&schoolname=&majorname=&majorNameStrict=false&specialId=&year=0&min=0&batchname=&typename=&schooluuid=&minrange=&subjectSelection=&sort=")
  .method("GET", null)
  .build();
Response response = client.newCall(request).execute();

var settings = {
  "url": "https://api.gugudata.com/metadata/ceemajorline?appkey=APPKEY&pageindex=1&pagesize=10&enrollprovince=&schoolname=&majorname=&majorNameStrict=false&specialId=&year=0&min=0&batchname=&typename=&schooluuid=&minrange=&subjectSelection=&sort=",
  "method": "GET",
  "timeout": 0,
};
$.ajax(settings).done(function (response) {
  console.log(response);
});

#import <Foundation/Foundation.h>
dispatch_semaphore_t sema = dispatch_semaphore_create(0);
NSMutableURLRequest *request =
        [NSMutableURLRequest requestWithURL:[NSURL URLWithString:
        @"https://api.gugudata.com/metadata/ceemajorline?appkey=APPKEY&pageindex=1&pagesize=10&enrollprovince=&schoolname=&majorname=&majorNameStrict=false&specialId=&year=0&min=0&batchname=&typename=&schooluuid=&minrange=&subjectSelection=&sort="]
  cachePolicy:NSURLRequestUseProtocolCachePolicy
  timeoutInterval:10.0];
[request setHTTPMethod:@"GET"];
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
  if (error) {
    NSLog(@"%@", error);
  } else {
    NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
    NSError *parseError = nil;
    NSDictionary *responseDictionary = [NSJSONSerialization JSONObjectWithData:data options:0 error:&parseError];
    NSLog(@"%@",responseDictionary);
    dispatch_semaphore_signal(sema);
  }
}];
[dataTask resume];
dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);

import requests
url = "https://api.gugudata.com/metadata/ceemajorline?appkey=APPKEY&pageindex=1&pagesize=10&enrollprovince=&schoolname=&majorname=&majorNameStrict=false&specialId=&year=0&min=0&batchname=&typename=&schooluuid=&minrange=&subjectSelection=&sort="
payload = {}
headers= {}
response = requests.request("GET", url, headers=headers, data = payload)
print(response.text)

require "uri"
require "net/http"
url = URI("https://api.gugudata.com/metadata/ceemajorline?appkey=APPKEY&pageindex=1&pagesize=10&enrollprovince=&schoolname=&majorname=&majorNameStrict=false&specialId=&year=0&min=0&batchname=&typename=&schooluuid=&minrange=&subjectSelection=&sort=")
https = Net::HTTP.new(url.host, url.port);
https.use_ssl = true
request = Net::HTTP::Get.new(url)
response = https.request(request)
puts response.read_body

import Foundation
var semaphore = DispatchSemaphore (value: 0)
var request = URLRequest(url: URL(string:"https://api.gugudata.com/metadata/ceemajorline?appkey=APPKEY&pageindex=1&pagesize=10&enrollprovince=&schoolname=&majorname=&majorNameStrict=false&specialId=&year=0&min=0&batchname=&typename=&schooluuid=&minrange=&subjectSelection=&sort=")!,timeoutInterval: Double.infinity)
request.httpMethod = "GET"
let task = URLSession.shared.dataTask(with: request) { data, response, error in
  guard let data = data else {
    print(String(describing: error))
    return
  }
  print(String(data: data, encoding: .utf8)!)
  semaphore.signal()
}
task.resume()
semaphore.wait()

/*
 * GuGuData API Request Node.js Demo
 * 咕咕数据 API Node.js 请求 DEMO
 * 咕咕数据，专业的数据提供商，提供全面的数据接口 API，并提供专业全面的数据接口、商业数据分析。
 * 让数据成为您的生产原料。
 * https://www.gugudata.com
 */

/* 咕咕数据 API 请求 DEMO ***开始***/
// 导入相关类库
var request = require("request");
var querystring = require("querystring");
var api_host = "https://api.gugudata.com";
var api_path = "/metadata/ceemajorline"; // todo: 注意修改请求对应的 API 接口
// todo: 注意修改构造请求参数
var data = {
 appkey:'APPKEY', pageindex:1, pagesize:10, enrollprovince:'', schoolname:'', majorname:'', majorNameStrict:false, specialId:, year:0, min:0, batchname:'', typename:'', schooluuid:'', minrange:'', subjectSelection:'', sort:''
};
var content = querystring.stringify(data);
var options = {
    method: "GET",
    url: api_host + api_path + "?" + content,
    headers: {}
};
// 发送网络请求
var requestGuGuData = request(options, (error, response) => {
    if (error) throw new Error(error);
    console.log("********接口响应返回 JSON 数据********");
    console.log(JSON.parse(response.body));
    requestGuGuData.end();
    console.log("********接口响应结束********");
});
/* 咕咕数据 API 请求 DEMO ***结束***/

<?php
$curl = curl_init();
curl_setopt_array($curl, array(
  CURLOPT_URL => "https://api.gugudata.com/metadata/ceemajorline?appkey=APPKEY&pageindex=1&pagesize=10&enrollprovince=&schoolname=&majorname=&majorNameStrict=false&specialId=&year=0&min=0&batchname=&typename=&schooluuid=&minrange=&subjectSelection=&sort=",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
));
$response = curl_exec($curl);
curl_close($curl);
echo $response;