java模拟https请求
下述的方法只是一个通用的方法,不考虑证书的情况,可作参考,因为自己对证书协议也不是很熟。
关于引入的包可能有多余,请自行删减。
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLDecoder;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.net.URLEncoder;
以下是方法,关于参数requestUrl为请求的路径,requestMethod为请求的方式(GET或POST),关于outputStr为请求的参数。
public static String httpsRequest(String requestUrl, String requestMethod, String outputStr) {
StringBuffer buffer = null;
try {
SSLContext sslContext = SSLContext.getInstance("SSL");
TrustManager[] tm = {new MyX509TrustManager()};
//初始化
sslContext.init(null, tm, new SecureRandom());
//获取SSLSocketFactory对象
SSLSocketFactory ssf = sslContext.getSocketFactory();
URL url = new URL(requestUrl);
HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setUseCaches(false);
conn.setRequestMethod(requestMethod);
//设置当前实例使用的SSLSocketFactory
conn.setSSLSocketFactory(ssf);
conn.connect();
//往服务器端写内容
if (outputStr != null) {
OutputStream os = conn.getOutputStream();
os.write(outputStr.getBytes("utf-8"));
os.close();
}
//读取服务器端的返回内容
InputStream is = conn.getInputStream();
InputStreamReader isr = new InputStreamReader(is, "utf-8");
BufferedReader bufferedReader = new BufferedReader(isr);
buffer = new StringBuffer();
String line = null;
while ((line = bufferedReader.readLine()) != null)
buffer.append(line);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (KeyManagementException e) {
e.printStackTrace();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return buffer.toString();
}
现在看这个文章的时候发现似乎是少了一个类,现在补上
import javax.net.ssl.X509TrustManager;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
/**
* Created by czy on 2018/11/23.
*
*/
public class MyX509TrustManager implements X509TrustManager {
@Override
public void checkClientTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
}
@Override
public void checkServerTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
}
@Override
public X509Certificate[] getAcceptedIssuers() {
return new X509Certificate[0];
}
}