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我正在尝试以下从网上下载的代码。这是关于阅读谷歌搜索页面的总搜索结果。

import com.google.gson.Gson;
import java.awt.Desktop;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.net.URLEncoder;


    public class Test {

        public static void main(String[] args) throws Exception {
            String google = "http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=";
            String search = "my";
            String charset = "UTF-8";

            URL url = new URL(google + URLEncoder.encode(search, charset));
            System.out.println(google + URLEncoder.encode(search, charset));
            Reader reader = new InputStreamReader(url.openStream(), charset);
            GoogleResults results = new Gson().fromJson(reader, GoogleResults.class);


            System.out.println(results.getResponseData().getResults().size());

        }
    }

搜索结果是

"queries": {
  "nextPage": [
   {
    "title": "Google Custom Search - flowers",
    "totalResults": 10300000,
    "searchTerms": "flowers",
    "count": 10,
    "startIndex": 11,
    "inputEncoding": "utf8",
    "outputEncoding": "utf8",
    "cx": "013036536707430787589:_pqjad5hr1a"
   }
  ],

我想为上述响应创建类“GoogleResults”

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1 回答 1

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问题是您使用非限定名称引用 GoogleResults 类而不导入它。

使用完全限定名称或导入它。我会发布一个示例，但我不确定课程在哪里。

编辑：通过搜索您发布的代码，我找到了一个完整的示例。事实证明，这GoogleResults不是一个标准库类，它是一个你需要自己定义的类。

class GoogleResults{

    private ResponseData responseData;
    public ResponseData getResponseData() { return responseData; }
    public void setResponseData(ResponseData responseData) { this.responseData = responseData; }
    public String toString() { return "ResponseData[" + responseData + "]"; }

    static class ResponseData {
        private List<Result> results;
        public List<Result> getResults() { return results; }
        public void setResults(List<Result> results) { this.results = results; }
        public String toString() { return "Results[" + results + "]"; }
    }

    static class Result {
        private String url;
        private String title;
        public String getUrl() { return url; }
        public String getTitle() { return title; }
        public void setUrl(String url) { this.url = url; }
        public void setTitle(String title) { this.title = title; }
        public String toString() { return "Result[url:" + url +",title:" + title + "]"; }
    }
}
于 2013-04-25T15:27:35.630 回答