java查看https证书

lliu2004004

于 2024-12-27 17:19:14 发布

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文章标签： https java 网络协议

本文链接：https://blog.youkuaiyun.com/lliu2004004/article/details/144773791

版权

package com.sleftest;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;

/**
 * @author admin
 * @date 2024-12-27
 * Copyright
 * 功能说明：
 */
public class CertificateTest {

    public static void main(String[] args) {
        readCertificate();
    }

    public static void readCertificate() {
        String certPath = "C:\\works\\11\\apiclient_cert.pem"; // 更新为你的证书路径

        try {
            // 创建证书工厂，并指定使用 X.509 标准
            CertificateFactory certFactory = CertificateFactory.getInstance("X.509");

            // 读取证书文件
            FileInputStream certInputStream = new FileInputStream(certPath);
            X509Certificate x509Certificate = (X509Certificate) certFactory.generateCertificate(certInputStream);

            System.out.println("颁发给: " + x509Certificate.getSubjectDN());
            System.out.println("颁发者: " + x509Certificate.getIssuerDN());
            System.out.println("有效期开始: " + x509Certificate.getNotBefore());
            System.out.println("有效期结束: " + x509Certificate.getNotAfter());

        } catch (FileNotFoundException e) {
            System.err.println("证书文件未找到: " + e.getMessage());
        } catch (CertificateException e) {
            System.err.println("解析证书时发生错误: " + e.getMessage());
        } catch (Exception e) {
            System.err.println("读取证书文件时发生错误: " + e.getMessage());
        }
    }
}