java - Spring 集成: Force Webservice Outbound Gateway to Use TLSv1

Question

我正在尝试与外部 Web 服务集成，它使用带有 TLS 1.0 协议(protocol)的证书。

我已尝试设置 -Dhttps.protocols=TLSv1,TLSv1.1,TLSv1.2,SSLv3，但出站网关仍然使用 TLSv1.2。如果我只是将选项限制为 TLSv1，它就可以正常工作，但我无法这样做，因为我正在集成到许多外部服务。

如何在出站网关本身上设置协议(protocol)？

我尝试使用此代码执行此操作，但遇到异常:

SimpleWebServiceOutboundGateway handler = new SimpleWebServiceOutboundGateway(url);
HttpComponentsMessageSender sender = new HttpComponentsMessageSender();
SSLContext sslContext = SSLContext.getDefault();
sslContext.getDefaultSSLParameters().setProtocols(new String[]{"TLSv1"});
CloseableHttpClient httpClient = HttpClients.custom().setSSLContext(sslContext).build();
sender.setHttpClient(httpClient);
handler.setMessageSender(sender);

异常(exception):

Caused by: org.apache.http.client.ClientProtocolException: null
    at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:186)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:55)
    at org.springframework.ws.transport.http.HttpComponentsConnection.onSendAfterWrite(HttpComponentsConnection.java:121)
    at org.springframework.ws.transport.AbstractWebServiceConnection.send(AbstractWebServiceConnection.java:48)
    at org.springframework.ws.client.core.WebServiceTemplate.sendRequest(WebServiceTemplate.java:658)
    at org.springframework.ws.client.core.WebServiceTemplate.doSendAndReceive(WebServiceTemplate.java:606)
    at org.springframework.ws.client.core.WebServiceTemplate.sendAndReceive(WebServiceTemplate.java:555)
    ... 91 common frames omitted
Caused by: org.apache.http.ProtocolException: Content-Length header already present
    at org.apache.http.protocol.RequestContent.process(RequestContent.java:97)
    at org.apache.http.protocol.ImmutableHttpProcessor.process(ImmutableHttpProcessor.java:133)
    at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:182)
    at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
    at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
    at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
    ... 99 common frames omitted

Answer 1

我查看了 HttpComponentsMessengerSender 的相关文档，发现 HttpComponentsMessageSender.RemoveSoapHeadersInterceptor

HttpClient HttpRequestInterceptor implementation that removes Content-Length and Transfer-Encoding headers from the request. Necessary, because some SAAJ and other SOAP implementations set these headers themselves, and HttpClient throws an exception if they have been set.

解决方案是将其添加到HttpComponentsMessengerSender的拦截器中。

发送者的最终版本是:

SSLContext sslContext = SSLContexts.custom().useProtocol("TLSv1").build();
CloseableHttpClient httpClient = HttpClients.custom()
            .setSSLContext(sslContext)
            .addInterceptorFirst(new 
HttpComponentsMessageSender.RemoveSoapHeadersInterceptor())
            .build();

HttpComponentsMessageSender sender = new HttpComponentsMessageSender(httpClient);