apache http get 和 post 请求
/** * http post 请求* 1、创建 client 实例
* 2、创建 post 实例
* 3、设置 post 参数
* 4、发送请求
*/ public static String post(String url, Map<String, String> params) {
if (url == null) {
LOGGER.info("http url can not be empty!");
}
String respCtn = "";
// 1、创建 client 实例
CloseableHttpClient httpclient = HttpClients.createDefault();
// 2、创建 post 实例
HttpPost post = new HttpPost(url);
ArrayList<NameValuePair> reqParams = null;
if (params != null && !params.isEmpty()) {
reqParams = new ArrayList<NameValuePair>();
for (Map.Entry<String, String> e : params.entrySet()) {
reqParams.add(new BasicNameValuePair(e.getKey(), e.getValue()));
}
}
HttpResponse response = null;
try {
if (reqParams != null)
// 3、设置 post 参数
post.setEntity(new UrlEncodedFormEntity(reqParams, "UTF-8"));
// 4、发送请求
response = httpclient.execute(post);
respCtn = EntityUtils.toString(response.getEntity());
} catch (Exception e) {
LOGGER.error("Fail to connect to remote host [" + url + "]" + e);
} finally {
if (httpclient != null) {
try {
httpclient.close();
} catch (IOException e) {
}
}
}
return respCtn;
}
/**
* http get 请求
*
* @param String
* url
*
*/
public static String doGet(String url) {
if (url == null || url.isEmpty()) {
LOGGER.info("http url can not be empty!");
}
String respCtn = "";
CloseableHttpClient httpclient = HttpClients.createDefault();
try {
HttpResponse response = null;
HttpGet get = new HttpGet(url);
response = httpclient.execute(get);
respCtn = EntityUtils.toString(response.getEntity());
} catch (Exception e) {
throw new RuntimeException(e.getMessage());
} finally {
if (httpclient != null) {
try {
httpclient.close();
} catch (IOException e) {
}
}
}
return respCtn;
}
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