httpClient 4.x post get方法

public static String doPost(String url, String encoding, String contentType, String sendData)

throws Exception {

HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();

CloseableHttpClient httpclient = httpClientBuilder.build();

HttpPost httppost = new HttpPost(url);

StringEntity myEntity = new StringEntity(sendData, encoding);

myEntity.setContentType(contentType);

httppost.setEntity(myEntity);

HttpResponse response = httpclient.execute(httppost);

HttpEntity resEntity = response.getEntity();

InputStreamReader reader = new InputStreamReader(resEntity.getContent(), encoding);

char[] buff = new char[‘?‘];

StringBuilder sb = new StringBuilder();

int length;

while ((length = reader.read(buff)) != -1) {

sb.append(new String(buff, 0, length));

}

httpclient.close();

return sb.toString();

}

public static void requestGet(String urlWithParams) throws Exception {

CloseableHttpClient httpclient = HttpClientBuilder.create().build();

// HttpGet httpget = new HttpGet("http://www.baidu.com/");

HttpGet httpget = new HttpGet(urlWithParams);

// 配置请求的超时设置

RequestConfig requestConfig = RequestConfig.custom().setConnectionRequestTimeout(5000).setConnectTimeout(5000)

.setSocketTimeout(5000).build();

httpget.setConfig(requestConfig);

CloseableHttpResponse response = httpclient.execute(httpget);

System.out.println("StatusCode -> " + response.getStatusLine().getStatusCode());

HttpEntity entity = response.getEntity();

String jsonStr = EntityUtils.toString(entity);// , "utf-8");

System.out.println(jsonStr);

httpget.releaseConnection();

}