Java.HttpClient繞過Https證書解決方案二
阿新 • • 發佈:2018-06-10
div boolean IT ava 緩沖 pre lds 指定 x509
方案2
import java.io.*;
import java.net.URL;
import java.net.URLConnection;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.*;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
public class HttpRequest
{
/**
* 向指定URL發送GET方法的請求
* @param url 發送請求的URL
* @param param 請求參數,請求參數應該是 name1=value1&name2=value2 的形式。
* @return URL 所代表遠程資源的響應結果
*/
public static String Get(String url, String param)
{
return Get(url, param, false);
}
/**
* 向指定URL發送GET方法的請求
* @param url 發送請求的URL
* @param param 請求參數,請求參數應該是 name1=value1&name2=value2 的形式。
* @return URL 所代表遠程資源的響應結果
*/
public static String Get(String url, String param, Boolean isHttpsRequest)
{
String result = "";
BufferedReader in = null;
try
{
if (isHttpsRequest)
{
HttpRequest.Instance().TrustHpps();
}
String urlNameString = url + "?" + param;
URL realUrl = new URL(urlNameString);
// 打開和URL之間的連接
URLConnection connection = realUrl.openConnection();
// 設置通用的請求屬性
connection.setRequestProperty("accept", "*/*");
connection.setRequestProperty("connection", "Keep-Alive");
connection.setRequestProperty("user-agent",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// 建立實際的連接
connection.connect();
// 獲取所有響應頭字段
Map<String, List<String>> map = connection.getHeaderFields();
// 遍歷所有的響應頭字段
for (String key : map.keySet())
{
System.out.println(key + "--->" + map.get(key));
}
// 定義 BufferedReader輸入流來讀取URL的響應
in = new BufferedReader(new InputStreamReader(
connection.getInputStream()));
String line;
while ((line = in.readLine()) != null)
{
result += line;
}
}
catch (Exception e)
{
System.out.println("發送GET請求出現異常!" + e);
e.printStackTrace();
}
// 使用finally塊來關閉輸入流
finally
{
try
{
if (in != null)
{
in.close();
}
}
catch (Exception e2)
{
e2.printStackTrace();
}
}
return result;
}
/**
* 向指定 URL 發送POST方法的請求
* @param url 發送請求的 URL
* @param param 請求參數,請求參數應該是 name1=value1&name2=value2 的形式。
* @return 所代表遠程資源的響應結果
*/
public static String Post(String url, String param)
{
return Post(url, param, false);
}
/**
* 向指定 URL 發送POST方法的請求
* @param url 發送請求的 URL
* @param param 請求參數,請求參數應該是 name1=value1&name2=value2 的形式。
* @param isHttpsRequest 是否Https請求
* @return 所代表遠程資源的響應結果
*/
public static String Post(String url, String param, Boolean isHttpsRequest)
{
PrintWriter out = null;
BufferedReader in = null;
String result = "";
try
{
if (isHttpsRequest)
{
HttpRequest.Instance().TrustHpps();
}
URL realUrl = new URL(url);
// 打開和URL之間的連接
URLConnection conn = realUrl.openConnection();
// 設置通用的請求屬性
conn.setRequestProperty("accept", "*/*");
conn.setRequestProperty("connection", "Keep-Alive");
conn.setRequestProperty("user-agent",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// 發送POST請求必須設置如下兩行
conn.setDoOutput(true);
conn.setDoInput(true);
// 獲取URLConnection對象對應的輸出流
out = new PrintWriter(conn.getOutputStream());
// 發送請求參數
out.print(param);
// flush輸出流的緩沖
out.flush();
// 定義BufferedReader輸入流來讀取URL的響應
in = new BufferedReader(
new InputStreamReader(conn.getInputStream()));
String line;
while ((line = in.readLine()) != null)
{
result += line;
}
}
catch (Exception e)
{
System.out.println("發送 POST 請求出現異常!" + e);
e.printStackTrace();
}
// 使用finally塊來關閉輸出流、輸入流
finally
{
try
{
if (out != null)
{
out.close();
}
if (in != null)
{
in.close();
}
}
catch (IOException ex)
{
ex.printStackTrace();
}
}
return result;
}
/**
* 信任證書管理
* */
private static TrustManager[] TrustAllCerts = new TrustManager[]
{
new X509TrustManager()
{
@Override
public void checkClientTrusted(X509Certificate[] chain,
String authType) throws CertificateException
{
// TODO Auto-generated method stub
}
@Override
public void checkServerTrusted(X509Certificate[] chain,
String authType) throws CertificateException
{
// TODO Auto-generated method stub
}
@Override
public X509Certificate[] getAcceptedIssuers()
{
// TODO Auto-generated method stub
return null;
}
}
};
/**
* 主機證書認證
* */
private class NullHostNameVerifier implements HostnameVerifier
{
/*
* (non-Javadoc)
* @see javax.net.ssl.HostnameVerifier#verify(java.lang.String,
* javax.net.ssl.SSLSession)
*/
@Override
public boolean verify(String arg0, SSLSession arg1)
{
// TODO Auto-generated method stub
return true;
}
}
private static HttpRequest _HttpRequest;
/**
* Http請求封裝實例
* */
public static HttpRequest Instance()
{
if (_HttpRequest == null)
{
_HttpRequest = new HttpRequest();
}
return _HttpRequest;
}
/**
* 信任HTTPS
* */
public void TrustHpps() throws Exception
{
HttpsURLConnection
.setDefaultHostnameVerifier(new NullHostNameVerifier());
SSLContext sc = SSLContext.getInstance("TLS");
sc.init(null, HttpRequest.TrustAllCerts, new SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
}
}
測試代碼
String address="https網頁地址";
//繞過Https證書方案2
String reslt2= HttpRequest.Get(address,null,true);
System.out.println(reslt2);
//說明請求過程中沒發生異常,且網頁正常返回,就說明成功繞過Https證書;紫紅色部分代碼是關鍵代碼
Java.HttpClient繞過Https證書解決方案二