使用HttpClient封装的Get和Post请求-蒲公英云

使用HttpClient封装的Get和Post请求

快来打我* 2023-10-11 14:38 115阅读 0赞

使用HttpClient封装的Get和Post请求，并可以将结果转为JSON对象返回

导入HttpClient的依赖

org.apache.httpcomponents
httpclient
4.5.2
封装get和post请求

public class HttpUtils {

    public static CloseableHttpClient httpClient = HttpClients.createDefault();
    //get
    public static JSONObject doGet(String url, Map<String, String> params) throws URISyntaxException, IOException {
        URIBuilder uriBuilder = new URIBuilder(url);
        if (params != null) {
            Set<String> keys = params.keySet();
            for (String key : keys) {
                String value = params.get(key);
                uriBuilder.setParameter(key,value);
            }
        }
        HttpGet httpGet = new HttpGet(uriBuilder.build());
        CloseableHttpResponse response = httpClient.execute(httpGet);
        System.out.println(response);
        return toJSONobject(response);
    }
    //post
    public static JSONObject doPost(String url, Map<String, String> params) throws IOException {
        HttpPost httpPost = new HttpPost(url);
        //封装post请求参数
        List<NameValuePair> valuePairs = new ArrayList<NameValuePair>();
        if (params != null){
            Set<String> keys = params.keySet();
            for (String key : keys) {
                String value = params.get(key);
                valuePairs.add(new BasicNameValuePair(key,value));
            }
        }
        UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(valuePairs,"utf8");
        httpPost.setEntity(formEntity);
        CloseableHttpResponse response = httpClient.execute(httpPost);
        return toJSONobject(response);
    }
    public static JSONObject toJSONobject(CloseableHttpResponse response) throws IOException {
        if (response.getStatusLine().getStatusCode() == 200){
            String json = EntityUtils.toString(response.getEntity());
            JSONObject jsonObject = JSON.parseObject(json);
            return jsonObject;
        }
        return null;
    }
}