通过HttpClinet类用get方法获得远程接口返回的Json串

来源：互联网发布：js string length 编辑：程序博客网时间：2024/06/06 13:07

public class HttpClientUtil {    public static String requestByGetMethod(String s) {        CloseableHttpClient httpClient = HttpClients.createDefault();        StringBuilder entityStringBuilder = null;        try {            HttpGet get = new HttpGet(s);            CloseableHttpResponse httpResponse = null;            httpResponse = httpClient.execute(get);            try {                HttpEntity entity = httpResponse.getEntity();                entityStringBuilder = new StringBuilder();                if (null != entity) {                    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(httpResponse.getEntity().getContent(), "UTF-8"), 8 * 1024);                    String line = null;                    while ((line = bufferedReader.readLine()) != null) {                        entityStringBuilder.append(line + "/n");                    }                }            } finally {                httpResponse.close();            }        } catch (Exception e) {            e.printStackTrace();        } finally {            try {                if (httpClient != null) {                    httpClient.close();                }            } catch (IOException e) {                e.printStackTrace();            }        }        return entityStringBuilder.toString();    }}

public class TestUrl {    public static void main(String args[]) {        String url = "http://suggest.taobao.com/sug?code=utf-8&q=牛奶&callback=cb";        String res = null;        try {            res = HttpClientUtil.requestByGetMethod(url);            JSONObject result = new JSONObject();            System.out.println(res);            res = res.substring(res.indexOf("{"), res.indexOf("}") + 1);            System.out.println(res);            result = JSONObject.fromObject(res);            String token = result.getString("result");            System.out.println(token);        } catch (Exception e) {            e.printStackTrace();        }    }}

用淘宝的商品搜索接口搜索“牛奶”的运行结果：

[["牛奶杯","194640"],["牛奶棉","61327"],["牛奶棉毛线","12855"],["牛奶洗面奶","10614"],["牛奶粉","236940"],["牛奶糖","49320"],["牛奶片","56362"],["牛奶1l","11292"],["牛奶棉线","7820"],["牛奶 1212","1600"]]

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