java-httpclient-HTTPS请求

最近自己搞微信支付开发时遇到了些问题，其中一个就是关于微信中需要发起HTTPS请求，下面贴代码，其中Config.getMch_id()方法是获取微信分给商户的一个ID，Config.getLicense_path()方法是获取证书的路径，这两个参数可以自己替换

import java.io.File;import java.io.FileInputStream;import java.io.InputStream;import java.security.KeyStore;import java.util.ArrayList;import java.util.List;import java.util.Map;import javax.net.ssl.SSLContext;import org.apache.http.HttpEntity;import org.apache.http.NameValuePair;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.CloseableHttpResponse;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.conn.ssl.SSLConnectionSocketFactory;import org.apache.http.conn.ssl.SSLContexts;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;import com.weixin.information.Config;public class HttpUtil implements Http {public InputStream httpsPost(String url, String content, String charset) {return https(url, content, null, charset, "post");}public InputStream httpsPost(String url, Map<String, String> content,String charset) {return https(url, null, content, charset, "post");}public InputStream httpsGet(String url) {return https(url, null, null, null, "get");}/** * 发起https请求 *  * @param url * @param content * @param mapContent * @param charset * @param method * @return */private static InputStream https(String url, String content,Map<String, String> mapContent, String charset, String method) {try {CloseableHttpClient httpclient = getHttpClient();CloseableHttpResponse response = null;InputStream is = null;try {// 判断请求方式是post还是getif (method.equals("post")) {HttpPost httpPost = new HttpPost(url);//判断post的数据是String类型还是Map类型if (content != null) {HttpEntity httpEntity = new StringEntity(content,charset);httpPost.setEntity(httpEntity);} else if (mapContent != null) {List<NameValuePair> list = new ArrayList<NameValuePair>();for (Map.Entry<String, String> entry : mapContent.entrySet()) {list.add(new BasicNameValuePair(entry.getKey(),entry.getValue()));}httpPost.setEntity(new UrlEncodedFormEntity(list,charset));}response = httpclient.execute(httpPost);} else if (method.equals("get")) {HttpGet httpget = new HttpGet(url);// 获取responseresponse = httpclient.execute(httpget);}// 从response中获取响应实体HttpEntity entity = response.getEntity();// 获取响应实体对应的响应内容的输入流is = entity != null ? entity.getContent() : null;// 销毁entityEntityUtils.consume(entity);return is;} finally {httpclient.close();response.close();}} catch (Exception e) {e.printStackTrace();}return null;}/** * 获取HttpClient *  * @return CloseableHttpClient对象， */private static CloseableHttpClient getHttpClient() {try {FileInputStream fis = null;CloseableHttpClient httpclient = null;try {// 指定证书格式为PKCS12KeyStore keyStore = KeyStore.getInstance("PKCS12");// 读取证书（该证书从微信公众平台下载）File file = new File(Config.getLicense_path());fis = new FileInputStream(file);// 指定PKCS12的密码(商户ID)keyStore.load(fis, Config.getMch_id().toCharArray());// Trust own CA and all self-signed certsSSLContext sslcontext = SSLContexts.custom().loadKeyMaterial(keyStore,Config.getMch_id().toCharArray()).build();// 指定TLS版本SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslcontext,new String[] { "TLSv1" },null,SSLConnectionSocketFactory.BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);// 设置httpclient的SSLSocketFactoryhttpclient = HttpClients.custom().setSSLSocketFactory(sslsf).build();return httpclient;} finally {fis.close();}} catch (Exception e) {e.printStackTrace();}return null;}}