HttpClient 的GET(带参数)、POST请求方式，工具类方法

/**
* 连接/断开操作 post方式
* @param url
* @param json
*/
private boolean connOrDisconnOperator(String url,String json){
CloseableHttpClient client = null;
CloseableHttpResponse response = null;
boolean flag = false;
try{
HttpPost httpPost = new HttpPost(url);
RequestConfig requestConfig = RequestConfig.custom()
.setConnectTimeout(50000)
.setSocketTimeout(50000)
.setConnectionRequestTimeout(120000).build();
httpPost.setConfig(requestConfig);
List<BasicNameValuePair> list = Lists.newArrayListWithExpectedSize(1);
list.add(new BasicNameValuePair("json",json));
httpPost.setEntity(new UrlEncodedFormEntity(list));
client = HttpClients.createDefault();
response = client.execute(httpPost);
if(response.getStatusLine().getStatusCode() == 200){
InputStream is = response.getEntity().getContent();
Map<String,Object> m = new ObjectMapper().readValue(StringUtil.getString(is),Map.class);
String strState = m.get("state").toString();
if("SUCCESS".equals(strState)){
flag = true;
}
}else{
log.error(this.getClass(), "connOrDisconnOperator method fail:" + response.getStatusLine().getStatusCode());
}
}catch (Exception ex){
log.error(this.getClass(), "connOrDisconnOperator method error",ex);
}finally {
if(response != null){
try {
response.close();
} catch (IOException ex) {
log.error(this.getClass(), "close response method error", ex);
}
}
if(client != null){
try {
client.close();
} catch (IOException ex) {
log.error(this.getClass(), "close client method", ex);
}
}
}
return flag;
}

// get方式
public Optional<Map<String,Object>> connOrDisconnOperator(String atisAirPortCode, String url) {
CloseableHttpClient client = null;
CloseableHttpResponse response = null;
try{
HttpGet httpGet = new HttpGet(url + "?airportCode=" +atisAirPortCode);
RequestConfig requestConfig = RequestConfig.custom()
.setSocketTimeout(5000)
.setConnectTimeout(5000)
.setConnectionRequestTimeout(120000).build();
httpGet.setConfig(requestConfig);
client = HttpClients.createDefault();
response = client.execute(httpGet);
if(response.getStatusLine().getStatusCode() == 200 || response.getStatusLine().getStatusCode() == 500){
Map<String,Object> map = Maps.newHashMapWithExpectedSize(4);
InputStream is = response.getEntity().getContent();
JsonNode jn = new ObjectMapper().readTree(StringUtil.getString(is));

// 解析返回结果
String result = jn.get("state").asText();
if (result.equals("SUCCESS")) {
System.out.println("-----------------------------成功");
} else {
System.out.println("-----------------------------失败");
}
return Optional.of(map);
}else{
return Optional.absent();
}
}catch (Exception ex) {
log.error(this.getClass(), "getOSInfo() error", ex);
return Optional.absent();
}finally {
if(response != null){
try {
response.close();
} catch (IOException ex) {
log.error(this.getClass(), "close IO error", ex);
}
}
if(client != null){
try {
client.close();
} catch (IOException ex) {
log.error(this.getClass(),"close IO error",ex);
}
}
}
}