Java中如何发送HTTP POST请求呢?

HttpPost请求的实现思路

借助Apache httpClient即可快速实现一个httpPost请求

HttpClient httpclient = HttpClients.createDefault();
HttpPost httppost = new HttpPost("https://www.java265.com");

//添加请求参数
list<NameValuePair> params = new ArrayList<NameValuePair>(2);
params.add(new BasicNameValuePair("param-1", "参数值1"));
params.add(new BasicNameValuePair("param-2", "参数值2"));
httppost.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));

//获取运行结果
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();

if (entity != null) {
    try (InputStream instream = entity.getContent()) {
        // do something useful
    }
}