java - Python 到 java 的转换

Question

我的原始 python 脚本如下。

#!/usr/bin/env python

import math,sys
import json
import urllib

def gsearch(searchfor):
  query = urllib.urlencode({'q': searchfor})
  url = 'http://ajax.googleapis.com/ajax/services/search/web?v=1.0&%s' % query
  search_response = urllib.urlopen(url)
  search_results = search_response.read()
  results = json.loads(search_results)
  data = results['responseData']
  return data

args = sys.argv[1:]
m = 45000000000
if len(args) != 2:
        print "need two words as arguments"
        exit
n0 = int(gsearch(args[0])['cursor']['estimatedResultCount'])
n1 = int(gsearch(args[1])['cursor']['estimatedResultCount'])
n2 = int(gsearch(args[0]+" "+args[1])['cursor']['estimatedResultCount'])

我正在将它转换成java。我已经完成了以下所有操作。我被困在这里 search_results = search_response.read() results = json.loads(search_results) data = results['responseData'] 。我不知道如何将这3行转换成java。

import java.io.*;
import java.io.FileInputStream;
import java.io.InputStream;
import java.net.URL;
import java.net.URLEncoder;
import java.net.URLConnection;

public class gi {

   public static void main (String[] args) {

     if(args.length==2){

         for(int i = 0; i < args.length; i++) {
                System.out.println("I IS : "+i+":"+args[i]);
            }
         int n0 = searchGoogle(args[0]);
         int n1 = searchGoogle(args[1]);
         int n2 = searchGoogle(args[0]+" "+args[1]);
     }
     else{
        System.out.println("Not enough arguement");
     }
   }
   public static int searchGoogle(String searchQuery)
   {
    try{

    String query=URLEncoder.encode(searchQuery, "UTF-8");
    String url = "http://ajax.googleapis.com/ajax/services/search/web?v=1.0&%s" + query;
    URLConnection connection = new URL(url).openConnection();
    }
    catch(Exception e){
    }
    int pageQty=0;
    return pageQty;
   }

}  // end of ReadString class

Answer 1

您应该能够使用类似以下内容来完成这项工作(来自 this stack overflow answer )。

String a = "http://ajax.googleapis.com/ajax/services/search/web?v=1.0&%s";
url = new URL(a);
URLConnection conn = url.openConnection();
BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));

<小时/>

一旦您从 URLConnection 获得了 BufferedReader，您就可以get a String object from it :

StringBuilder builder = new StringBuilder();
String aux = "";

while ((aux = reader.readLine()) != null) {
    builder.append(aux);
}

String text = builder.toString();

<小时/>

获得 String 对象后，您可以将其传递到 JSONObject 构造函数中。 (来自this stack overflow answer)。

使用org.json库:

JSONObject jsonObj = new JSONObject(text);

<小时/>

现在您已经有了 JSONObject，您可以使用可用的方法来提取所需的数据。

例如:

JSONObject cursorObj = jsonObj.getJSONObject("cursor");
int resultCount = cursorObj.getInt("resultCount");