为什么当我尝试打开 URL 时会收到 403 错误 [英] Why do I get a 403 error when I try open a URL

问题描述

我目前正在使用来自 http://imdbapi.org 的 imdb api 来获取有关电影的一些信息.当我使用 API 并尝试在 Java 中打开这个 url 时，它给了我 403 错误.该 url 应该以 JSON 格式返回数据.到目前为止，这是我的代码(Java 7):

I am currently using the imdb api from http://imdbapi.org to get some information about a movie. When I use the API and try to open this url in java it gives me a 403 error. The url is supposed to return the data in JSON. Here is my code so far(Java 7):

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;

public class Test {
    public static void main(String[] args) {
        URL url =null;
        try {
            url = new URL("http://imdbapi.org/?q=batman");
        } catch (MalformedURLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        InputStream is =null;
        try {
            is = url.openConnection().getInputStream();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        BufferedReader reader = new BufferedReader( new InputStreamReader( is )  );
        String line = null;
        try {
            while( ( line = reader.readLine() ) != null )  {
               System.out.println(line);
            }
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        try {
            reader.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        System.out.println(line);
    }
}

推荐答案

你应该设置User-Agent:

System.setProperty("http.agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.29 Safari/537.36"); 

或

URLConnection connection = url.openConnection();
connection.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.29 Safari/537.36");
is = connection.getInputStream();

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