Java调用https协议证书
时间: 2023-06-23 11:09:09 浏览: 99
Java调用https协议需要使用证书,以下是调用https协议证书的步骤:
1. 在Java代码中设置信任所有证书的信任管理器:
```
TrustManager[] trustAllCerts = new TrustManager[] {
new X509TrustManager() {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return null;
}
public void checkClientTrusted(X509Certificate[] certs, String authType) {
}
public void checkServerTrusted(X509Certificate[] certs, String authType) {
}
}
};
SSLContext sslContext = SSLContext.getInstance("SSL");
sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());
```
2. 加载证书,并通过CertificateFactory将证书转换为Java可识别的证书对象:
```
String certPath = "/path/to/cert.crt";
FileInputStream fis = new FileInputStream(certPath);
CertificateFactory cf = CertificateFactory.getInstance("X.509");
X509Certificate cert = (X509Certificate)cf.generateCertificate(fis);
fis.close();
```
3. 将证书添加到TrustManager中:
```
KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
keyStore.load(null, null);
keyStore.setCertificateEntry("cert", cert);
TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
tmf.init(keyStore);
SSLContext sslContext = SSLContext.getInstance("SSL");
sslContext.init(null, tmf.getTrustManagers(), new java.security.SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());
```
这样就可以使用Java代码调用https协议了。