关于双向认证，使用HttpsURLConnection访问Https安全链接

一、 概述

最近在Android开发群里听小伙伴们问道了一个关于OkHttp加了证书能访问到Https的url，但是访问不到Http的url，对此，当时想到的是实例化两个OkHttp的对象，一个加证书访问，另一个不加证书去访问，自己也没有实践，也只是凭空想象，不知道你们是不是也是这样想的呢？言归正传，今天就能讲讲自己用HttpsUrlConnection来访问证书链接。

二、核心代码

这里我写了一个工具类，ParseUtils。

-  解析json
-  解析图片
-  解析xml

public class ParseUtils {
public final static String HOST = "cil.vicenter";

/**
*  解析公用方法(含有验证证书部分)
* @param ctx
* @param result
* @param url
* @return
* @throws IOException
* @throws NoSuchAlgorithmException
* @throws KeyManagementException
*/
public static String ParseResult(Context ctx,String result, URL url)
throws IOException, NoSuchAlgorithmException,
KeyManagementException {
HttpsURLConnection conn;
conn = (HttpsURLConnection) url.openConnection();
conn.setSSLSocketFactory(HttpUrlConnSSLSocketFactory
.getSSLSocketFactory(ctx));
conn.setConnectTimeout(5 * 1000);
conn.setReadTimeout(10 * 1000);
conn.setHostnameVerifier(new AllowAllHostnameVerifier());
conn.addRequestProperty("Accept-Language", Locale.getDefault().toString());
conn.addRequestProperty("Host", HOST);
conn.addRequestProperty("Connection", "Keep-Alive");
conn.addRequestProperty("X-Requested-With", "XMLHttpRequest");
conn.addRequestProperty("loginType", "mobile");
conn.connect();
if (conn.getResponseCode() == 200) {
InputStreamReader isr = new InputStreamReader(
conn.getInputStream());
BufferedReader bufferReader = new BufferedReader(isr);
String inputLine = "";
while ((inputLine = bufferReader.readLine()) != null) {
result += inputLine + "\n";
}
}
Log.e(ctx.getClass().getSimpleName(), result);
return result;
}

/**
*  解析图片方法(含有验证证书部分)
* @param ctx
* @param result
* @param url
* @return
* @throws IOException
* @throws NoSuchAlgorithmException
* @throws KeyManagementException
*/
public static Bitmap ParsePicResult(Context ctx, URL url)
throws IOException, NoSuchAlgorithmException,
KeyManagementException {
Bitmap bitmap;
HttpsURLConnection conn;
conn = (HttpsURLConnection) url.openConnection();
conn.setSSLSocketFactory(HttpUrlConnSSLSocketFactory
.getSSLSocketFactory(ctx));
conn.setConnectTimeout(30000);
conn.setHostnameVerifier(new AllowAllHostnameVerifier());
conn.addRequestProperty("Accept-Language", Locale.getDefault().toString());
conn.addRequestProperty("Host", HOST);
conn.addRequestProperty("Connection", "Keep-Alive");
conn.addRequestProperty("X-Requested-With", "XMLHttpRequest");
conn.addRequestProperty("loginType", "mobile");
conn.connect();
if (conn.getResponseCode() == 200) {
InputStream is = conn.getInputStream();
// Get bitmap through image path
BitmapFactory.Options newOpts = new BitmapFactory.Options();
newOpts.inJustDecodeBounds = false;  //对图像不进行真正的解码
newOpts.inPurgeable = true;
newOpts.inInputShareable = true;
// Do not compress
newOpts.inSampleSize = 4;
newOpts.inPreferredConfig = Config.RGB_565;
bitmap = BitmapFactory.decodeStream(is,null, newOpts);
is.close();
return bitmap;
}
return null;
}

/**
*  解析公用方法(含有验证证书部分)
* @param ctx
* @param result
* @param url
* @return
* @throws IOException
* @throws NoSuchAlgorithmException
* @throws KeyManagementException
*/
public static InputStream ParseXmlResult(Context ctx,String result, URL url,float outWidth, float outHeight)
throws IOException, NoSuchAlgorithmException,
KeyManagementException {
HttpsURLConnection conn;
conn = (HttpsURLConnection) url.openConnection();
conn.setSSLSocketFactory(HttpUrlConnSSLSocketFactory
.getSSLSocketFactory(ctx));
conn.setConnectTimeout(5 * 1000);
conn.setReadTimeout(10 * 1000);
conn.setHostnameVerifier(new AllowAllHostnameVerifier());
conn.addRequestProperty("Accept-Language", Locale.getDefault().toString());
conn.addRequestProperty("Host", HOST);
conn.addRequestProperty("Connection", "Keep-Alive");
conn.addRequestProperty("X-Requested-With", "XMLHttpRequest");
conn.addRequestProperty("loginType", "mobile");
conn.connect();
InputStream is = conn.getInputStream();
return is;
}

三、实现

1. 加载json数据

private void runHttpsRequestWithHttpsURLConnection() {
AsyncTask<String, Void, String> testTask = new AsyncTask<String, Void, String>() {
@Override
protected String doInBackground(String... params) {
String result = "";
HttpsURLConnection conn = null;
try {
URI suspectListUri = ParamUtls.getSuspectListUri(
BaseActivity.BaseHost,BaseActivity.BasePort);
URL url = new URL(suspectListUri.toString());
result = ParseUtils.ParseResult(mContext, result, url);
return result;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}

@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
}};
testTask.execute();
}

2. 加载图片部分
String suspetPicUri = ParamUtls.getSuspetPicUri(
BaseActivity.BaseHost, port, checkInfo,
ParamUtls.SMALL_ICON_TYPE_POSTFIX);

ImageLoader.getInstance().displayImage(suspetPicUri, holder.ivImg, OptionsUtils.getHeadOptions());

3. 加载xml似乎没用到但是绝对也能用的

四、源码部分