https 用 HttpsURLConnectio如何登陆 post方式：报错

不知这个工具类可否解决你的问题。

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Map;
import java.util.Map.Entry;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

/**
 * http util
 * @author biezhi
 * @since 1.0
 */
public class HttpUtil {

	private static final String DEFAULT_CHARSET = "UTF-8"; // 默认字符集

	private static final String _GET = "GET"; // GET
	private static final String _POST = "POST";// POST

	/**
	 * 初始化http请求参数
	 */
	private static HttpURLConnection initHttp(String url, String method, Map<String, String> headers)
			throws IOException {
		URL _url = new URL(url);
		HttpURLConnection http = (HttpURLConnection) _url.openConnection();
		// 连接超时
		http.setConnectTimeout(25000);
		// 读取超时 --服务器响应比较慢，增大时间
		http.setReadTimeout(25000);
		http.setRequestMethod(method);
		http.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
		http.setRequestProperty("User-Agent",
				"Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36");
		if (null != headers && !headers.isEmpty()) {
			for (Entry<String, String> entry : headers.entrySet()) {
				http.setRequestProperty(entry.getKey(), entry.getValue());
			}
		}
		http.setDoOutput(true);
		http.setDoInput(true);
		http.connect();
		return http;
	}

	/**
	 * 初始化http请求参数
	 */
	private static HttpsURLConnection initHttps(String url, String method, Map<String, String> headers)
			throws IOException, NoSuchAlgorithmException, NoSuchProviderException, KeyManagementException {
		TrustManager[] tm = { new MyX509TrustManager() };
		SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
		sslContext.init(null, tm, new java.security.SecureRandom());
		// 从上述SSLContext对象中得到SSLSocketFactory对象  
		SSLSocketFactory ssf = sslContext.getSocketFactory();
		URL _url = new URL(url);
		HttpsURLConnection http = (HttpsURLConnection) _url.openConnection();
		// 设置域名校验
		http.setHostnameVerifier(new HttpUtil().new TrustAnyHostnameVerifier());
		// 连接超时
		http.setConnectTimeout(25000);
		// 读取超时 --服务器响应比较慢，增大时间
		http.setReadTimeout(25000);
		http.setRequestMethod(method);
		http.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
		http.setRequestProperty("User-Agent",
				"Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36");
		if (null != headers && !headers.isEmpty()) {
			for (Entry<String, String> entry : headers.entrySet()) {
				http.setRequestProperty(entry.getKey(), entry.getValue());
			}
		}
		http.setSSLSocketFactory(ssf);
		http.setDoOutput(true);
		http.setDoInput(true);
		http.connect();
		return http;
	}

	/**
	 * get请求
	 */
	public static String get(String url, Map<String, String> params, Map<String, String> headers) {
		StringBuffer bufferRes = null;
		try {
			HttpURLConnection http = null;
			if (isHttps(url)) {
				http = initHttps(initParams(url, params), _GET, headers);
			} else {
				http = initHttp(initParams(url, params), _GET, headers);
			}
			InputStream in = http.getInputStream();
			BufferedReader read = new BufferedReader(new InputStreamReader(in, DEFAULT_CHARSET));
			String valueString = null;
			bufferRes = new StringBuffer();
			while ((valueString = read.readLine()) != null) {
				bufferRes.append(valueString);
			}
			in.close();
			if (http != null) {
				http.disconnect();// 关闭连接
			}
			return bufferRes.toString();
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}

	/**
	 * get请求
	 */
	public static String get(String url) {
		return get(url, null);
	}

	/**
	 * get请求
	 */
	public static String get(String url, Map<String, String> params) {
		return get(url, params, null);
	}

	/**
	 * post请求
	 */
	public static String post(String url, String params, Map<String, String> headers) {
		StringBuffer bufferRes = null;
		try {
			HttpURLConnection http = null;
			if (isHttps(url)) {
				http = initHttps(url, _POST, headers);
			} else {
				http = initHttp(url, _POST, headers);
			}
			OutputStream out = http.getOutputStream();
			out.write(params.getBytes(DEFAULT_CHARSET));
			out.flush();
			out.close();

			InputStream in = http.getInputStream();
			BufferedReader read = new BufferedReader(new InputStreamReader(in, DEFAULT_CHARSET));
			String valueString = null;
			bufferRes = new StringBuffer();
			while ((valueString = read.readLine()) != null) {
				bufferRes.append(valueString);
			}
			in.close();
			if (http != null) {
				http.disconnect();// 关闭连接
			}
			return bufferRes.toString();
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}

	/**
	 * post请求
	 */
	public static String post(String url, Map<String, String> params) {
		return post(url, map2Url(params), null);
	}

	/**
	 * post请求
	 */
	public static String post(String url, Map<String, String> params, Map<String, String> headers) {
		return post(url, map2Url(params), headers);
	}

	/**
	 * 初始化参数
	 */
	public static String initParams(String url, Map<String, String> params) {
		if (null == params || params.isEmpty()) {
			return url;
		}
		StringBuilder sb = new StringBuilder(url);
		if (url.indexOf("?") == -1) {
			sb.append("?");
		}
		sb.append(map2Url(params));
		return sb.toString();
	}

	/**
	 * map转url参数
	 */
	public static String map2Url(Map<String, String> paramToMap) {
		if (null == paramToMap || paramToMap.isEmpty()) {
			return null;
		}
		StringBuffer url = new StringBuffer();
		boolean isfist = true;
		for (Entry<String, String> entry : paramToMap.entrySet()) {
			if (isfist) {
				isfist = false;
			} else {
				url.append("&");
			}
			url.append(entry.getKey()).append("=");
			String value = entry.getValue();
			if (StringUtils.isNotEmpty(value)) {
				try {
					url.append(URLEncoder.encode(value, DEFAULT_CHARSET));
				} catch (UnsupportedEncodingException e) {
					e.printStackTrace();
				}
			}
		}
		return url.toString();
	}

	/**
	 * 检测是否https
	 */
	private static boolean isHttps(String url) {
		return url.startsWith("https");
	}

	/**
	 * https 域名校验
	 * @author biezhi
	 * @since 1.0
	 */
	public class TrustAnyHostnameVerifier implements HostnameVerifier {
		public boolean verify(String hostname, SSLSession session) {
			return true;// 直接返回true
		}
	}
}

// 证书管理
class MyX509TrustManager implements X509TrustManager {

	public X509Certificate[] getAcceptedIssuers() {
		return null;
	}

	@Override
	public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
	}

	@Override
	public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
	}
}

你用fiddler 或firebug 抓下请求 然后 在按照请求的顺序 逐个发送请求 

GET与POST安全性几乎是相同的，你不用考虑这个，用fireBug一下就看到传的内容了

你的问题主要是https的连接方式与传参方法是问题的重点

https　Request（加密通道传参数）