如何在java执行https get请求？
如何在java执行https get请求？
提问于 2018-08-02 04:22:54
我编写了一个java客户机，它执行HTTPGET请求，没有任何问题。
import org.apache.http.HttpHost;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
private String executeGet(final String url, String proxy, int port)
throws IOException, RequestUnsuccesfulException, InvalidParameterException {
CloseableHttpClient httpclient = null;
String ret = "";
RequestConfig config;
try {
String hostname = extractHostname(url);
logger.info("Hostname {}", hostname);
HttpHost target = new HttpHost(hostname, 80, null);
HttpHost myProxy = new HttpHost(proxy, port, "http");
CredentialsProvider credsProvider = new BasicCredentialsProvider();
credsProvider.setCredentials(
AuthScope.ANY,
new UsernamePasswordCredentials(USERNAME, PASSWORD));
httpclient = HttpClients.custom().setDefaultCredentialsProvider(credsProvider).build();
config = RequestConfig.custom().setProxy(myProxy).build();
HttpGet request = new HttpGet(url);
request.setConfig(config);
CloseableHttpResponse response = httpclient.execute(target, request);
...现在我必须发送httpsGET请求而不是https。我期待一个简单的修改，如HttpsGet，而不是别的。没有可用的HttpsGet类。
最简单的修改方法是什么，以便处理https请求？
回答 2
Stack Overflow用户
发布于 2018-08-02 13:08:36
解决方案：
private String executeGet(final String https_url, final String proxyName, final int port) {
String ret = "";
URL url;
try {
HttpsURLConnection con;
url = new URL(https_url);
if (proxyName.isEmpty()) {
con = (HttpsURLConnection) url.openConnection();
} else {
Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(proxyName, port));
con = (HttpsURLConnection) url.openConnection(proxy);
Authenticator authenticator = new Authenticator() {
public PasswordAuthentication getPasswordAuthentication() {
return (new PasswordAuthentication(USERNAME, PASSWORD.toCharArray()));
}
};
Authenticator.setDefault(authenticator);
}
ret = getContent(con);
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return ret;
}Stack Overflow用户
发布于 2018-08-02 13:53:33
这是我在Java中的https客户机，它忽略无效的证书并使用Basic进行身份验证。
import java.io.IOException;
import java.net.URL;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
public static HttpsURLConnection getConnection(boolean ignoreInvalidCertificate, String user, String pass, HttpRequestMethod httpRequestMethod, URL url) throws KeyManagementException, NoSuchAlgorithmException, IOException{
SSLContext ctx = SSLContext.getInstance("TLS");
if (ignoreInvalidCertificate){
ctx.init(null, new TrustManager[] { new InvalidCertificateTrustManager() }, null);
}
SSLContext.setDefault(ctx);
String authStr = user+":"+pass;
String authEncoded = Base64.encodeBytes(authStr.getBytes());
HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setDoOutput(true);
connection.setRequestProperty("Authorization", "Basic " + authEncoded);
if (ignoreInvalidCertificate){
connection.setHostnameVerifier(new InvalidCertificateHostVerifier());
}
return connection;
}import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLSession;
public class InvalidCertificateHostVerifier implements HostnameVerifier{
@Override
public boolean verify(String paramString, SSLSession paramSSLSession) {
return true;
}
}import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.X509TrustManager;
/**
* ignore invalid Https certificate from OPAM
* <p>see http://javaskeleton.blogspot.com.br/2011/01/avoiding-sunsecurityvalidatorvalidatore.html
*/
public class InvalidCertificateTrustManager implements X509TrustManager{
@Override
public X509Certificate[] getAcceptedIssuers() {
return null;
}
@Override
public void checkServerTrusted(X509Certificate[] paramArrayOfX509Certificate, String paramString) throws CertificateException {
}
@Override
public void checkClientTrusted(X509Certificate[] paramArrayOfX509Certificate, String paramString) throws CertificateException {
}
}也许你可以从这开始。
当然，由于你有连接，所以可以使用
InputStream content = (InputStream) connection.getInputStream();页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/-100001863
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