java 通過HTTPS URL下載檔案
阿新 • • 發佈：2019-01-24
/**
* TODO 下載檔案到本地
*
* @param fileUrl 遠端地址
* @param fileLocal 本地路徑
* @throws Exception
*/
public static void downloadFile(String fileUrl, String fileLocal , String callId) throws Exception {
SSLContext sslcontext = SSLContext.getInstance("SSL", "SunJSSE");
sslcontext.init(null, new TrustManager[] { new X509TrustUtiil() }, new java.security.SecureRandom());
URL url = new URL(fileUrl);
HostnameVerifier ignoreHostnameVerifier = new HostnameVerifier() {
public boolean verify(String s, SSLSession sslsession) {
System.out.println("WARNING: Hostname is not matched for cert.");
return true;
}
};
HttpsURLConnection.setDefaultHostnameVerifier(ignoreHostnameVerifier);
HttpsURLConnection.setDefaultSSLSocketFactory(sslcontext.getSocketFactory());
HttpsURLConnection urlCon = (HttpsURLConnection) url.openConnection();
urlCon.setConnectTimeout(6000);
urlCon.setReadTimeout(6000);
int code = urlCon.getResponseCode();
if (code != HttpURLConnection.HTTP_OK) {
throw new Exception("檔案讀取失敗");
}
// 讀檔案流
DataInputStream in = new DataInputStream(urlCon.getInputStream());
DataOutputStream out = new DataOutputStream(new FileOutputStream(fileLocal));
byte[] buffer = new byte[2048];
int count = 0;
while ((count = in.read(buffer)) > 0) {
out.write(buffer, 0, count);
}
out.close();
in.close();
* TODO 下載檔案到本地
*
* @param fileUrl 遠端地址
* @param fileLocal 本地路徑
* @throws Exception
*/
public static void downloadFile(String fileUrl, String fileLocal , String callId) throws Exception {
SSLContext sslcontext = SSLContext.getInstance("SSL", "SunJSSE");
sslcontext.init(null, new TrustManager[] { new X509TrustUtiil() }, new java.security.SecureRandom());
URL url = new URL(fileUrl);
HostnameVerifier ignoreHostnameVerifier = new HostnameVerifier() {
public boolean verify(String s, SSLSession sslsession) {
System.out.println("WARNING: Hostname is not matched for cert.");
return true;
}
};
HttpsURLConnection.setDefaultHostnameVerifier(ignoreHostnameVerifier);
HttpsURLConnection.setDefaultSSLSocketFactory(sslcontext.getSocketFactory());
HttpsURLConnection urlCon = (HttpsURLConnection) url.openConnection();
urlCon.setConnectTimeout(6000);
urlCon.setReadTimeout(6000);
int code = urlCon.getResponseCode();
if (code != HttpURLConnection.HTTP_OK) {
throw new Exception("檔案讀取失敗");
}
// 讀檔案流
DataInputStream in = new DataInputStream(urlCon.getInputStream());
DataOutputStream out = new DataOutputStream(new FileOutputStream(fileLocal));
byte[] buffer = new byte[2048];
int count = 0;
while ((count = in.read(buffer)) > 0) {
out.write(buffer, 0, count);
}
out.close();
in.close();
}
工具類:
package com.yzj.api.downrecord.utils;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.X509TrustManager;
public class X509TrustUtiil implements X509TrustManager{
@Override
public void checkClientTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
// TODO Auto-generated method stub
}
@Override
public void checkServerTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
// TODO Auto-generated method stub
}
@Override
public X509Certificate[] getAcceptedIssuers() {
// TODO Auto-generated method stub
return null;
}
}