--調用項目提供接口，接口是用HTTP URL實作的，最初的想法是另一個項目用jQuery
post進行請求。
---但是，很可能另一個項目是部署在别的機器上，那麼就存在跨域問題，而jquery的post請求是不允許跨域的。
---這時，就隻能夠用HttpClient包進行請求了，同時由于請求的URL是HTTPS的，為了避免需要證書，是以用一-----個類繼承DefaultHttpClient類，忽略校驗過程。
1.https是需要ssl證書,即使是沒用的證書也需要建立.
public static CloseableHttpClient
createSSLClientDefault(){
try {
SSLContext sslContext = new
SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy()
{
//信任所有
public boolean isTrusted(X509Certificate[]
chain,
String authType) throws CertificateException
{
return true;
}
}).build();
SSLConnectionSocketFactory sslsf = new
SSLConnectionSocketFactory(sslContext);
return
HttpClients.custom().setSSLSocketFactory(sslsf).build();
} catch (KeyManagementException e)
{
e.printStackTrace();
} catch (NoSuchAlgorithmExceptione)
{
e.printStackTrace();
} catch (KeyStoreException e) {
e.printStackTrace();
}
return
HttpClients.createDefault();
}
public static String
doPost(String url, String requestXML, String token, String
signatrue, String charset,
boolean pretty, String contentType) {
HttpPost httpPost = new
HttpPost(url);
String resp = null;
try {
if (StringUtils.isNotBlank(token)) {
httpPost.setHeader("4GGOGO-Auth-Token",
token);
}
if (StringUtils.isNotBlank(signatrue))
{
httpPost.setHeader("HTTP-X-4GGOGO-Signature",
signatrue);
}
if (StringUtils.isNotBlank(contentType))
{
httpPost.setHeader("Content-Type",
contentType);
}
httpPost.setEntity(new
StringEntity(requestXML,"utf-8"));
CloseableHttpClient httpClient =
createSSLClientDefault();
HttpResponse httpResponse =
httpClient.execute(httpPost);
HttpEntity entity =
httpResponse.getEntity();
if (entity != null) {
//按指定編碼轉換結果實體為String類型
resp =
EntityUtils.toString(entity, "UTF-8");
}
} catch
(ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return resp;
}
public
static String doGet(String url, String queryString, String token,
String signatrue, String charset,
boolean pretty, String contentType) {
StringBuffer response = new
StringBuffer();
HttpClient client = new
HttpClient();
HttpMethod method = new
GetMethod(url);
try {
if (StringUtils.isNotBlank(queryString))
{
method.setQueryString(URIUtil.encodeQuery(queryString));
}
if (StringUtils.isNotBlank(signatrue))
{
method.addRequestHeader("HTTP-X-4GGOGO-Signature",
signatrue);
}
if (StringUtils.isNotBlank(token)) {
method.addRequestHeader("4GGOGO-Auth-Token", token);
}
method.setRequestHeader("content-type",
contentType);
client.executeMethod(method);
System.out.println("傳回的狀态碼為" +
method.getStatusCode());
if (method.getStatusCode() == HttpStatus.SC_OK)
{
BufferedReader reader = new BufferedReader(new
InputStreamReader(method.getResponseBodyAsStream(),
charset));
String
line;
while
((line = reader.readLine()) != null) {
if (pretty) {
response.append(line).append(System.getProperty("line.separator"));
} else {
response.append(line);
}
}
reader.close();
}
} catch (URIException e)
{
System.out.println("執行HTTP Get請求時，編碼查詢字元串'" +
queryString + "'發生異常！" + e.getMessage());
} catch (IOException e)
{
System.out.println("執行HTTP Get請求時，編碼查詢字元串'" +
queryString + "'發生異常！" + e.getMessage());
} finally {
method.releaseConnection();
}
return
response.toString();
}
public
static CloseableHttpClient createSSLClientDefault(){
try
{
SSLContext sslContext = new
SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy()
{
//信任所有
public
boolean isTrusted(X509Certificate[] chain,
String
authType) throws CertificateException {
return
true;
}
}).build();
SSLConnectionSocketFactory sslsf = new
SSLConnectionSocketFactory(sslContext);
return
HttpClients.custom().setSSLSocketFactory(sslsf).build();
} catch
(KeyManagementException e) {
e.printStackTrace();
} catch
(NoSuchAlgorithmExceptione) {
e.printStackTrace();
} catch
(KeyStoreException e) {
e.printStackTrace();
}
return
HttpClients.createDefault();
}