如何在Java中从API获取自定义数据

Question

Iam使用这个API->https://www.boredapi.com/API/activity，所以Iam用Java创建一个程序，但是当我从上面的API检索数据时，像这样->

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;

public class apiTest {

public static void main(String[] args) {
    
String ApiFRomData;
try {
    URL url_name = new URL("https://www.boredapi.com/api/activity");

    BufferedReader sc = new BufferedReader(new InputStreamReader(url_name.openStream()));

    // reads public IPAddress
    ApiFRomData = sc.readLine().trim();
    
    
} catch (Exception e) {
    ApiFRomData = "Cannot Execute Properly";
    // return "connection_issue";
}
// return "nothinng";
System.out.println(ApiFRomData);
}
}

我在控制台->中获得此输出

 {
  "activity": "Learn Express.js",
   "accessibility": 0.25,
   "type": "education",
   "participants": 1,
    "price": 0.1,
    "link": "https://expressjs.com/",
   "key": "3943506"
   } 

Answer 1

产生什么样的错误？不看到错误消息就很难确定哪里是错的/对的

编辑：无法正常评论，因故需要使用解答功能