//忽略SSL验证
public static void ignoreSSL() throws NoSuchAlgorithmException, KeyManagementException {
SSLContext sslContext = SSLContext.getInstance("TLS");
TrustManager[] trustManagers = new TrustManager[]{new X509TrustManager() {
@Override
public void checkClientTrusted(java.security.cert.X509Certificate[] x509Certificates, String s) {}
@Override
public void checkServerTrusted(java.security.cert.X509Certificate[] x509Certificates, String s) {}
@Override
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return null;
}
}};
sslContext.init(null, trustManagers, new java.security.SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());
}
public static void main(String[] args) throws Exception {
ignoreSSL();
// 创建URL对象
URL url = new URL("https://lmg.jj20.com/up/allimg/4k/s/02/2109250006343S5-0-lp.jpg");
// 打开连接
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
// 设置请求头参数
connection.setRequestMethod("GET");
connection.setRequestProperty("User-Agent", "Mozilla/5.0");
// 发送请求
int responseCode = connection.getResponseCode();
// 读取响应
BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String line;
StringBuilder response = new StringBuilder();
while ((line = reader.readLine()) != null) {
response.append(line);
}
reader.close();
// 输出响应
System.out.println("Response Code: " + responseCode);
System.out.println("Response Body: " + response.toString());
// 关闭连接
connection.disconnect();
}
亲测，好用~~
