Java HttpClient - 通过代理发布文件 [英] Java HttpClient - Post with file through Proxy
问题描述
我尝试使用代理从我的webapplication调用外部网站。此外,还需要在这个外部网站上执行POST请求。
I try calling an external website from my webapplication with a proxy. Furthermore and need to execute a POST Request at this external website.
我正在使用:tomcat7,org.apache.httpcomponents 4.3.4,spring。
I'm using: tomcat7, org.apache.httpcomponents 4.3.4, spring.
以下,没有代理,有效,我的回复状态为'200';
Following, without proxy, works and I get a response status '200';
// uri = "https://punkte.eiv-fobi.de/upload/upload.do"
private HttpStatus sendPost(URI uri, File file)
throws ClientProtocolException, IOException {
HttpClient httpClient = HttpClientBuilder.create().build();
HttpPost httpPost = new HttpPost(uri);
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
FileBody fileBody = new FileBody(file, ContentType.MULTIPART_FORM_DATA);
builder.addPart(PART_NAME, fileBody);
httpPost.setEntity(builder.build());
HttpResponse response = httpClient.execute(httpPost);
return HttpStatus.valueOf(response.getStatusLine().getStatusCode());
}
现在我尝试添加代理:
// uri = "https://punkte.eiv-fobi.de/upload/upload.do"
public HttpStatus sendPostWithProxy(URI uri, File file) throws Exception {
try {
// JVM Parameter: -Dhttps.proxyHost and -Dhttps.proxyPort
String proxyHost = System.getProperty("https.proxyHost");
String proxyPort = System.getProperty("https.proxyPort");
HttpClient httpClient = HttpClientBuilder.create().build();
// CloseableHttpClient httpClient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost(uri);
HttpHost proxy = new HttpHost(proxyHost,
Integer.valueOf(proxyPort), "https");
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
FileBody fileBody = new FileBody(file,
ContentType.MULTIPART_FORM_DATA);
builder.addPart(PART_NAME, fileBody);
httpPost.setEntity(builder.build());
RequestConfig config = RequestConfig.custom().setProxy(proxy)
.build();
httpPost.setConfig(config);
HttpResponse response = httpClient.execute(httpPost);
return HttpStatus.valueOf(response.getStatusLine().getStatusCode());
} catch (Exception e) {
LOGGER.error(
"exception occurred.",
e);
}
return null;
}
获得以下例外:
javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
我错了什么?替代方案?
What Do Im wrong? Alternatives?
推荐答案
我可以想到一些可能导致此问题的问题:
I can think of a few issues that could cause this:
-
您确定您的https代理不需要身份验证吗?在这种情况下,您可能需要在上下文中设置凭据并使用上下文和客户端执行请求。请检查以下示例: http://www.the-swamp.info/blog/java-request-through-proxy/
由于您使用的是https代理并请求https URL(SSL / TLS端点安全性),因此您可能会遇到证书验证问题。检查https代理的这个好解释:使用Http代理v / s https代理的优缺点?
Since you are using an https proxy and requesting an https url (SSL/TLS endpoint security) you may have problems with certificate validation. Check this good explanation for https proxies: Pros and cons of using a Http proxy v/s https proxy?
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