java https 工具类_java https 请求工具类-通用

好的，以下是一个Java HTTPS请求的通用工具类示例：

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.security.cert.X509Certificate;
import java.util.Map;

public class HttpsUtil {

    public static String sendPostRequest(String url, Map<String, String> params) throws Exception {
        // 创建SSLContext对象，并使用我们指定的信任管理器初始化
        TrustManager[] trustManagers = {new X509TrustManager() {
            public 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, trustManagers, new java.security.SecureRandom());

        // 打开连接
        URL obj = new URL(url);
        HttpsURLConnection con = (HttpsURLConnection) obj.openConnection();
        con.setSSLSocketFactory(sslContext.getSocketFactory());

        // 设置请求头
        con.setRequestMethod("POST");
        con.setRequestProperty("User-Agent", "Mozilla/5.0");

        // 设置请求参数
        String urlParameters = "";
        if (params != null && !params.isEmpty()) {
            StringBuilder sb = new StringBuilder();
            for (Map.Entry<String, String> entry : params.entrySet()) {
                if (sb.length() > 0) {
                    sb.append("&");
                }
                sb.append(entry.getKey()).append("=").append(entry.getValue());
            }
            urlParameters = sb.toString();
        }

        // 发送POST请求
        con.setDoOutput(true);
        DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes(urlParameters);
        wr.flush();
        wr.close();

        // 读取响应
        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        String inputLine;
        StringBuilder response = new StringBuilder();
        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        return response.toString();
    }

}

这个工具类可以在HTTPS请求中使用，会自动忽略SSL证书验证。使用时只需要调用sendPostRequest方法，传入URL和请求参数即可。