java - 具有 TLS 的 REST 客户端返回 SSLHandshakeException : Received fatal alert: handshake_failure

Question

我正在与 RESTful API 集成，并且我有这个实用方法来发送 REST 请求并获取响应

    BufferedReader br;
        HttpURLConnection con = null;

        try {
            URL obj = new URL(url);
            con = (HttpURLConnection) obj.openConnection();

            con.setReadTimeout(httpReadTimeOut);
            con.setRequestMethod("POST");

            for (String key : requestTypeMap.keySet()) {
                con.setRequestProperty(key, requestTypeMap.get(key));
            }

            String jsonRequest = gson.toJson(request);
            CommonUtilityLogger.debug("json request is :: " + jsonRequest);

            con.setDoOutput(true);
            DataOutputStream wr = new DataOutputStream(con.getOutputStream());
            wr.writeBytes(jsonRequest);
            wr.flush();
            wr.close();

            if (con.getResponseCode() != 200) {
                CommonUtilityLogger.error("failed : HTTP error code : " + con.getResponseCode());
            }

            br = new BufferedReader(new InputStreamReader((con.getInputStream())));

            return (T) gson.fromJson(br, responseType);

在第三方 API 文档中，它说我必须使用 TLS 证书，并且它们包含许多与之相关的文件

Test Certificate 1231181189.key 
Test Certificate 1231181189.p7b 
Test Certificate 1231181189.p12 
Test Certificate 1231181189.pem 
TLS Root CA.pem

现在每次我尝试调用这些服务时都会得到

javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:154)

我在这里缺少什么，我找不到它

Answer 1

尝试从浏览器下载 REST API 的证书并将该证书添加到您的 truststore.jks 文件中。

点击此链接创建 keystore 和信任库:Create keystore and truststore