JAVA分享篇（22）基础知识大总结

HTTPS请求示例代码

import java.io.*;

import java.net.*;

import java.security.cert.CertificateException;

import java.security.cert.X509Certificate;

import javax.net.ssl.*;

public class TrustSSL {
private static class TrustAnyTrustManager implements X509TrustManager {
public void checkClientTrusted(X509Certificate[] chain, String authType)

throws CertificateException {
}

public void checkServerTrusted(X509Certificate[] chain, String authType)

throws CertificateException {
}

public X509Certificate[] getAcceptedIssuers() {
return new X509Certificate[] {};

}

}

private static class TrustAnyHostnameVerifier implements HostnameVerifier {
public boolean verify(String hostname, SSLSession session) {
return true;

}

}

public static void main(String[] args) throws Exception {
InputStream in = null;

OutputStream out = null;

byte[] buffer = new byte[4096];

String str_return = “”;

try {
SSLContext sc = SSLContext.getInstance(“SSL”);

sc.init(null, new TrustManager[] { new TrustAnyTrustManager() },

new java.security.SecureRandom());

URL console = new URL(“https://192.168.1.188/testServlet?username=admin”);

HttpsURLConnection conn = (HttpsURLConnection) console.openConnection();

conn.setSSLSocketFactory(sc.getSocketFactory());

conn.setHostnameVerifier(new TrustAnyHostnameVerifier());

conn.connect();

InputStream is = conn.getInputStream();

DataInputStream indata = new DataInputStream(is);

String ret = “”;

while (ret != null) {
ret = indata.readLine();

if (ret != null && !ret.trim().equals(“”)) {
str_return = str_return+ new String(ret.getBytes(“ISO-8859-1”), “UTF-8”);

}

}

conn.disconnect();

} catch (ConnectException e) {
System.out.println(“ConnectException”);

System.out.println(e);

throw e;

} catch (IOException e) {
System.out.println(“IOException”);

System.out.println(e);

throw e;

} finally {
try {
in.close();

} catch (Exception e) {
}

try {
out.close();

} catch (Exception e) {
}

}

System.out.println(str_return);

}

}