jdk1.7 使用Protocol 版本為 TLSv1.2 異常：javax.net.ssl.SSLException: Received fatal alert: protocol_version
阿新 • • 發佈：2019-05-08
專案依賴JAVA 7，其中httpclient 使用的是 commons-httpclient3.0.jar 這個包已經十多年沒有更新了。嘗試了各種方法不能把Protocol 版本改為 TLSv1.2。最終無奈換commons-httpclient-3.1.jar 改為使用 httpclient-4.5.2.jar。、然後使用下面的方式可以讓jdk1.7 使用Protocol 版本為 TLSv1.2
/**
* @Description: http post json 請求
* @Author: 張穎輝(yh)
* @Date: 2019/5/8 10:45
* @param: [uri 請求地址, requestBody 請求json內容, timeOut 超時時間：毫秒]
* @return: java.lang.String
* @Version: 1.0
*/
public static String executePost(String uri, String requestBody, Integer timeOut) throws NoSuchAlgorithmException, KeyManagementException {
// SSLContext ctx= SSLContext.getInstance("TLSv1.2");
// ctx.init(null, null, null);
SSLContext ctx = SSLContexts.custom().useProtocol("TLSv1.2").build();
CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(new SSLConnectionSocketFactory(ctx)).build();
HttpPost httpPost = new HttpPost(uri);
String strResult = null;
try {
//httpPost.setEntity(new UrlEncodedFormEntity(parameters, Consts.UTF_8));
HttpEntity httpEntity = new StringEntity(requestBody, ContentType.APPLICATION_JSON);
httpPost.setEntity(httpEntity);
/*連線超時*/
if (null != timeOut) {
RequestConfig requestConfig = RequestConfig.custom()
.setConnectTimeout(timeOut).setConnectionRequestTimeout(timeOut)
.setSocketTimeout(timeOut).build();
httpPost.setConfig(requestConfig);
}
HttpResponse httpResponse = httpClient.execute(httpPost);
logger.info("responseCode:{}", httpResponse.getStatusLine().getStatusCode());
if (httpResponse.getStatusLine().getStatusCode() == 200) {
strResult = EntityUtils.toString(httpResponse.getEntity(), "UTF-8");//獲得返回的結果
logger.info("post請求返回資訊為：{}", strResult);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
httpClient.close();//釋放資源
} catch (IOException e) {
e.printStackTrace();
}
}
return strResult;
}