package com.doumee.core.utils;
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import org.apache.http.client.methods.CloseableHttpResponse;
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import org.apache.http.client.methods.HttpGet;
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import org.apache.http.client.utils.URIBuilder;
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import org.apache.http.impl.client.CloseableHttpClient;
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import org.apache.http.impl.client.HttpClients;
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import org.apache.http.util.EntityUtils;
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import javax.net.ssl.*;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.net.URI;
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import java.net.URL;
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import java.security.KeyManagementException;
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import java.security.NoSuchAlgorithmException;
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import java.security.SecureRandom;
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import java.security.cert.CertificateException;
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import java.security.cert.X509Certificate;
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import java.util.Map;
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public class HttpsUtil {
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public static String get(String url,boolean ignoreSSL) {
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return connection(url, "GET", null, null,ignoreSSL);
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}
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public static String post(String url, String data, String contentType, boolean ignoreSSL) {
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return connection(url, "POST", data, contentType, ignoreSSL);
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}
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public static String connection(String url,String method,String data,String contentType,boolean ignoreSSL){
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HttpsURLConnection connection = null;
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try {
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URL _url = new URL(url);
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connection = (HttpsURLConnection) _url.openConnection();
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connection.setRequestMethod(method);
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connection.setDoOutput(true);
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connection.setDoInput(true);
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connection.setUseCaches(false);
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if(contentType != null){
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connection.setRequestProperty("Content-Type", contentType);
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}
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if(ignoreSSL){
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//信任所有ssl证书和主机
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TrustManager[] trustManagers = {new HttpsTrustManager()};
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SSLContext context = SSLContext.getInstance("TLS");
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context.init(null, trustManagers, new SecureRandom());
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connection.setSSLSocketFactory(context.getSocketFactory());
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connection.setHostnameVerifier(new HostnameVerifier() {
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@Override
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public boolean verify(String hostname, SSLSession session) {
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return true;
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}
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});
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}
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connection.connect();
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if(data != null){
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OutputStream outputStream = connection.getOutputStream();
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outputStream.write(data.getBytes("utf-8"));
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outputStream.close();
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}
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int responseCode = connection.getResponseCode();
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if (responseCode == HttpsURLConnection.HTTP_OK) {
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InputStream is = connection.getInputStream();
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byte[] b = new byte[4096];
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ByteArrayOutputStream baos = new ByteArrayOutputStream(b.length);
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int len;
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while ((len = is.read(b)) != -1) {
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baos.write(b, 0, len);
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}
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is.close();
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return baos.toString("utf-8");
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}
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return connection.getResponseMessage();
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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if(connection != null){
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connection.disconnect();
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}
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}
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return null;
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}
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/**
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* 发送get请求
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* @param url 请求URL
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* @param param 请求参数 key:value url携带参数 或者无参可不填
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* @return
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*/
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public static String doGet(String url, Map<String, String> param) {
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// 创建Httpclient对象
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CloseableHttpClient httpclient = HttpClients.createDefault();
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String resultString = "";
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CloseableHttpResponse response = null;
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try {
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// 创建uri
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URIBuilder builder = new URIBuilder(url);
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if (param != null) {
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for (String key : param.keySet()) {
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builder.addParameter(key, param.get(key));
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}
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}
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URI uri = builder.build();
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// 创建http GET请求
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HttpGet httpGet = new HttpGet(uri);
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// 执行请求
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response = httpclient.execute(httpGet);
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// 判断返回状态是否为200
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if (response.getStatusLine().getStatusCode() == 200) {
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resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
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}
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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try {
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if (response != null) {
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response.close();
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}
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httpclient.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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return resultString;
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}
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public static void main(String[] args) {
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//局部信任所有证书和主机
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String result = HttpsUtil.get("https://127.0.0.1:8443/ssl-test/test01.do",true);
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System.out.println(result);
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//外部信任所有证书和主机
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HttpsTrustManager.allowAllSSL();
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String response = HttpsUtil.get("https://127.0.0.1:8443/ssl-test/test01.do", false);
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System.out.println(result);
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}
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}
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class HttpsTrustManager implements X509TrustManager {
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private static TrustManager[] trustManagers = {new HttpsTrustManager()};
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@Override
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public void checkClientTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
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// TODO Auto-generated method stub
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}
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@Override
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public void checkServerTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
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// TODO Auto-generated method stub
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}
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@Override
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public X509Certificate[] getAcceptedIssuers() {
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// TODO Auto-generated method stub
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return null;
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}
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public static void allowAllSSL() {
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try {
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SSLContext context = SSLContext.getInstance("TLS");
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context.init(null, trustManagers, new SecureRandom());
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HttpsURLConnection.setDefaultSSLSocketFactory(context.getSocketFactory());
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HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
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@Override
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public boolean verify(String hostname, SSLSession session) {
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return true;
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}
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});
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} catch (NoSuchAlgorithmException | KeyManagementException e) {
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e.printStackTrace();
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}
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}
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}
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