我的Android进阶之旅------>Android关于HttpsURLConnection一个忽略Https证书是否正确的Https请求工具类

       下面是一个Android HttpsURLConnection忽略Https证书是否正确的Https请求工具类，不需要验证服务器端证书是否正确,也不需要验证服务器证书中的域名是否有效。
       (PS:建议下面代码仅仅用于测试阶段，不建议用于发布后的产品中。否则的话HTTPS就形同虚设了。)

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;

/**
* 忽略Https证书是否正确的Https Post请求工具类
* <p/>
* created by OuyangPeng on 2016/1/17.
*/
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");
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 TrustAnyHostnameVerifier());
http.setSSLSocketFactory(ssf);
// 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;
}

/**
* 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 (null == value || "".equals(value.trim())) {
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");
}

/**
* 不进行主机名确认
*/
private static class TrustAnyHostnameVerifier implements HostnameVerifier {
public boolean verify(String hostname, SSLSession session) {
return true;
}
}

/**
* 信任所有主机 对于任何证书都不做SSL检测
* 安全验证机制，而Android采用的是X509验证
*/
private static 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 {
}
}
}


可以参考以下几篇文章：
http://www.blogjava.net/stevenjohn/archive/2012/08/16/385569.html http://blog.csdn.net/sunny243788557/article/details/38874153 http://blog.csdn.net/liangweiwei130/article/details/8845024 http://www.xuebuyuan.com/1788389.html
关于HTTPS SSL验证证书的问题可以参考以下几篇文章

Android证书信任问题与大表哥
Android Https请求详细demo
android中进行https连接的方式
android httpClient 支持HTTPS的访问方式
android ssl验证、https验证

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