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+package com.miaxis.test;
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+
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+import org.apache.http.HttpEntity;
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+import org.apache.http.client.methods.CloseableHttpResponse;
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+import org.apache.http.client.methods.HttpPost;
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+import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
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+import org.apache.http.entity.StringEntity;
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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.ssl.SSLContexts;
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+import org.apache.http.util.EntityUtils;
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+import org.apache.logging.log4j.LogManager;
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+import org.apache.logging.log4j.Logger;
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+
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+import javax.net.ssl.SSLContext;
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+import javax.xml.transform.OutputKeys;
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+import javax.xml.transform.Transformer;
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+import javax.xml.transform.TransformerFactory;
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+import javax.xml.transform.dom.DOMSource;
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+import javax.xml.transform.stream.StreamResult;
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+import java.io.File;
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+import java.io.FileInputStream;
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+import java.io.StringWriter;
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+import java.security.KeyStore;
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+import java.security.MessageDigest;
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+import java.security.SecureRandom;
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+import java.util.*;
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+
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+public class HttpClientSSL {
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+ Logger log = LogManager.getLogger(HttpClientSSL.class);
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+
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+ private static String payUrl = "https://fraud.mch.weixin.qq.com/risk/getpublickey";
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+ //商户key
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+ private static String KEY = "7hM14893GvG3JK05575jk1l6P4tF042B";
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+ //商户mch_id
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+ private static String mchId = "1611324484";
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+
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+ public static void main(String[] args) throws Exception {
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+ Map<String, String> parameterMap = new HashMap<>();
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+ parameterMap.put("mch_id", mchId);
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+ parameterMap.put("nonce_str", generateNonceStr());
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+ try{
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+
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+ parameterMap.put("sign_type", "MD5");
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+ parameterMap.put("sign", HttpClientSSL.generateSignature(parameterMap,KEY,"MD5"));
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+ //要以xml格式传递
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+ String postDataXML = HttpClientSSL.mapToXml(parameterMap);
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+ String result = HttpClientSSL.wxRefundLink(postDataXML, mchId );
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+
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+ System.out.println(result);
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+ }catch (Exception e){
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+ e.printStackTrace();
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+ }
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+ }
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+
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+ /**
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+ * 将Map转换为XML格式的字符串
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+ *
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+ * @param data Map类型数据
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+ * @return XML格式的字符串
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+ * @throws Exception
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+ */
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+ public static String mapToXml(Map<String, String> data) throws Exception {
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+ org.w3c.dom.Document document = WXPayXmlUtil.newDocument();
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+ org.w3c.dom.Element root = document.createElement("xml");
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+ document.appendChild(root);
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+ for (String key: data.keySet()) {
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+ String value = data.get(key);
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+ if (value == null) {
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+ value = "";
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+ }
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+ value = value.trim();
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+ org.w3c.dom.Element filed = document.createElement(key);
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+ filed.appendChild(document.createTextNode(value));
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+ root.appendChild(filed);
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+ }
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+ TransformerFactory tf = TransformerFactory.newInstance();
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+ Transformer transformer = tf.newTransformer();
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+ DOMSource source = new DOMSource(document);
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+ transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
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+ transformer.setOutputProperty(OutputKeys.INDENT, "yes");
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+ StringWriter writer = new StringWriter();
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+ StreamResult result = new StreamResult(writer);
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+ transformer.transform(source, result);
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+ String output = writer.getBuffer().toString(); //.replaceAll("\n|\r", "");
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+ try {
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+ writer.close();
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+ }
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+ catch (Exception ex) {
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+ }
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+ return output;
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+ }
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+
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+ private static final String SYMBOLS = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
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+
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+ private static final Random RANDOM = new SecureRandom();
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+ /**
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+ * 获取随机字符串 Nonce Str
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+ *
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+ * @return String 随机字符串
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+ */
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+ public static String generateNonceStr() {
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+ char[] nonceChars = new char[32];
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+ for (int index = 0; index < nonceChars.length; ++index) {
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+ nonceChars[index] = SYMBOLS.charAt(RANDOM.nextInt(SYMBOLS.length()));
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+ }
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+ return new String(nonceChars);
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+ }
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+ public static String generateSignature(Map<String, String> data, String key, String signType) throws Exception {
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+ Set<String> keySet = data.keySet();
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+ String[] keyArray = keySet.toArray(new String[keySet.size()]);
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+ Arrays.sort(keyArray);
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+ StringBuilder sb = new StringBuilder();
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+ for (String k : keyArray) {
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+ if (k.equals("sign")) {
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+ continue;
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+ }
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+ if (data.get(k).trim().length() > 0) // 参数值为空,则不参与签名
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+ sb.append(k).append("=").append(data.get(k).trim()).append("&");
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+ }
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+ sb.append("key=").append(key);
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+ if ("MD5".equals(signType)) {
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+ return MD5(sb.toString()).toUpperCase();
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+ }
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+ else {
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+ throw new Exception(String.format("Invalid sign_type: %s", signType));
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+ }
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+ }
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+ /**
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+ * 生成 MD5
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+ *
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+ * @param data 待处理数据
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+ * @return MD5结果
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+ */
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+ public static String MD5(String data) throws Exception {
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+ java.security.MessageDigest md = MessageDigest.getInstance("MD5");
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+ byte[] array = md.digest(data.getBytes("UTF-8"));
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+ StringBuilder sb = new StringBuilder();
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+ for (byte item : array) {
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+ sb.append(Integer.toHexString((item & 0xFF) | 0x100).substring(1, 3));
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+ }
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+ return sb.toString().toUpperCase();
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+ }
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+
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+ private static String wxRefundLink(String postDataXML,String mch_id) throws Exception{
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+ CloseableHttpClient httpClient = null;
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+ CloseableHttpResponse httpResponse = null;
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+ try{
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+ //获取微信支付api证书
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+ KeyStore keyStore = getCertificate(mch_id);
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+ SSLContext sslContext = SSLContexts.custom().loadKeyMaterial(keyStore, mch_id.toCharArray()).build();
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+ SSLConnectionSocketFactory sslf = new SSLConnectionSocketFactory(sslContext);
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+ httpClient = HttpClients.custom().setSSLSocketFactory(sslf).build();
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+ HttpPost httpPost = new HttpPost(payUrl);
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+
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+ StringEntity reqEntity = new StringEntity(postDataXML);
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+ // 设置类型
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+ reqEntity.setContentType("application/x-www-form-urlencoded");
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+ httpPost.setEntity(reqEntity);
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+ String result = null;
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+ httpResponse = httpClient.execute(httpPost);
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+ HttpEntity httpEntity = httpResponse.getEntity();
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+ result = EntityUtils.toString(httpEntity, "UTF8");
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+ EntityUtils.consume(httpEntity);
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+ return result;
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+ }finally {//关流
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+ httpClient.close();
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+ httpResponse.close();
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+ }
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+
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+ }
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+
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+ /**
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+ *
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+ * @description: 获取微信支付api证书
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+ */
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+ private static KeyStore getCertificate(String mch_id){
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+ //try-with-resources 关流
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+ try {
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+ String certificate_path = "D:\\ideaMiaxis\\jsjp\\jsjp-admin\\src\\main\\resources\\wechatpay" + File.separator + "apiclient_cert.p12";
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+ FileInputStream inputStream = new FileInputStream(certificate_path);
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+ KeyStore keyStore = KeyStore.getInstance("PKCS12");
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+ keyStore.load(inputStream, mch_id.toCharArray());
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+ return keyStore;
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+ } catch (Exception e) {
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+ throw new RuntimeException(e.getMessage(), e);
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+ }
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+ }
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+
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+}
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