java - 必应 API 示例代码

Question

我使用 bing api 的示例代码:

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

import org.apache.commons.codec.binary.Base64;
import org.jsoup.Jsoup;
public class bingSearch {
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        //--------------------------------------Bing search------------------------------
        String searchText = "swim";
        searchText = searchText.replaceAll(" ", "%20");
        String accountKey="Your-AccountKEY";
        byte[] accountKeyBytes = Base64.encodeBase64((accountKey + ":" + accountKey).getBytes());
        String accountKeyEnc = new String(accountKeyBytes);
        URL url;
        try {
            url = new URL(  
                    "https://api.datamarket.azure.com/Data.ashx/Bing/Search/v1/Web?Query=%27" + searchText + "%27&$top=50&$format=Atom");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        conn.setRequestProperty("Authorization", "Basic " + accountKeyEnc);

     //  conn.setRequestProperty("Accept", "application/json");

        BufferedReader br = new BufferedReader(new InputStreamReader(
                (conn.getInputStream())));
        StringBuilder sb = new StringBuilder();
        String output;
        System.out.println("Output from Server .... \n");
        char[] buffer = new char[4096];
        while ((output = br.readLine()) != null) {
            sb.append(output);

              //  text.append(link + "\n\n\n");//Will print the google search links
            //}     
        } 

        conn.disconnect(); 

        int find = sb.indexOf("<d:Description");

        int total = find + 1000;

        System.out.println("Find index: " + find);
        System.out.println("Total index: " + total);
        sb.getChars(find+35, total, buffer, 0);

        String str = new String(buffer);

        int find2 = str.indexOf("</d:Description>");

        int total2 = find2 + 400;
        System.out.println("Find index: " + find);
        System.out.println("Total index: " + total);
        char[] buffer2 = new char[1024];

        str.getChars(0, find2, buffer2 , 0);
        String str2 = new String(buffer2);
        str2 = Jsoup.parse(str2).text();    
        System.out.println(str2);

        } catch (MalformedURLException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }


    }        
}

输出是:

服务器的输出....

Find index: 1014
Total index: 2014
Find index: 1014
Total index: 2014
A computer is a general purpose device that can be programmed to carry out a finite set of arithmetic or logical operations. Since a sequence of operations can be ...

它只显示一个结果，但我需要多个结果。用这段代码可以做到吗？或者这个代码有其他替代品吗？谢谢

Answer 1

在调用 Bing 时，您请求的结果为 Atom feed，这就是您返回的内容(该特定查询的长度为 38785 个字符)，您确实应该将其视为 Atom feed 并以更合适的方式解析它。

您在代码中只得到一个结果的原因是您似乎从未循环过 sb包含提要的字符串。如果您确实想以这种方式解析提要，您需要移至 conn.disconnect() 之后的代码到循环并使用类似 sb.indexOf("<d:Description", int fromIndex) 的内容遍历字符串，每次找到新的匹配项时都会增加 fromIndex。

但是您确实应该将 Bing 的响应视为 xml-feed，并使用某些 xml-library 对其进行解析，例如 Rome .