httpclient向浏览器发送get和post请求

get请求代码实现

public static void main(String[] args) {

       CloseableHttpClient httpClient = null;  //请求对象

       CloseableHttpResponse response = null;  //返回对象

       HttpEntity entity = null;  //返回主体

       String responseContent = null; //将返回的主题转换成字符串

       String url = "http://127.0.0.1:5000";//请求的URL

       try {

  httpClient = HttpClients.createDefault();

HttpGet httpGet = new HttpGet(url);

response = httpClient.execute(httpGet);

entity = response.getEntity();

responseContent = EntityUtils.toString(entity, "utf-8");

System.out.println(httpGet.getURI());

System.out.println(responseContent);

httpClient.close();

         } catch (IOException e) {

e.printStackTrace();

        }

}

post请求代码实现

public static void main(String[] args) {

        CloseableHttpClient httpClient = null;

        CloseableHttpResponse response = null;

        HttpEntity entity = null;  

        String responseContent = null;

        String url = "http://127.0.0.1:5000/login";

       try {

httpClient = HttpClients.createDefault();

HttpPost httpPost = new HttpPost(url);

 

List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();

nameValuePairs.add(new BasicNameValuePair("username", "bokeyuan"));

nameValuePairs.add(new BasicNameValuePair("password", "123456"));

httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs, "UTF-8"));

 

response = httpClient.execute(httpPost);

entity = response.getEntity();

responseContent = EntityUtils.toString(entity, "utf-8");

System.out.println(responseContent);

httpClient.close();

               } catch (IOException e) {

e.printStackTrace();

}

}