添加高德地图工具类、配置文件

jsowell-admin/src/main/resources/application.yml

@@ -125,4 +125,9 @@ wulian:
   getWay: https://api.wl1688.net/iotc/getway
   name:
     getSimInfo: api.v2.card.info
-    WuLianSimRenew: api.v2.order.renew
+    WuLianSimRenew: api.v2.order.renew
+
+#高德地图相关
+aMap:
+  merchantPrivateKey:
+  aMapPublicKey:

jsowell-thirdparty/src/main/java/com/jsowell/thirdparty/amap/util/AMapUtils.java

@@ -0,0 +1,140 @@
+package com.jsowell.thirdparty.amap.util;
+
+import org.springframework.beans.factory.annotation.Value;
+
+import java.io.*;
+import java.security.*;
+import java.security.spec.PKCS8EncodedKeySpec;
+import java.security.spec.X509EncodedKeySpec;
+import java.util.*;
+
+/**
+ * 高德地图工具类
+ */
+public class AMapUtils {
+
+    @Value("${aMap.merchantPrivateKey}")
+    private static String MERCHANT_PRIVATE_KEY;
+
+    @Value("${aMap.aMapPublicKey}")
+    private static String AMAP_PUBLIC_KEY;
+
+    /**
+     * 使用商家私钥生成签名
+     *
+     * @param paramMap
+     * @return
+     * @throws Exception
+     */
+    public static String generateSign(Map<String, String> paramMap) throws Exception {
+        //使用商家私钥进行加签，请在高德云店「接入准备及配置」页面生成并获取商家私钥
+        String signContent = getSignContent(paramMap);
+        return getSign(signContent, MERCHANT_PRIVATE_KEY);
+    }
+
+    /**
+     * 参数转换为待加签字符串
+     *
+     * @param paramMap 待生成加密sign的参数集合
+     */
+    private static String getSignContent(Map<String, String> paramMap) {
+        StringBuilder content = new StringBuilder();
+        List<String> keys = new ArrayList<>(paramMap.keySet());
+        // 将参数集合排序
+        Collections.sort(keys);
+        for (int i = 0; i < keys.size(); i++) {
+            String key = keys.get(i);
+            //排除不需要参与签名的公共参数
+            if ("sign_type".equals(key) || "sign".equals(key) || "need_encrypt".equals(key)) {
+                continue;
+            }
+            String value = paramMap.get(key);
+            // 拼装所有非空参数
+            if (key != null && !"".equalsIgnoreCase(key) && value != null && !"".equalsIgnoreCase(value)) {
+                content.append(i == 0 ? "" : "&").append(key).append("=").append(value);
+            }
+        }
+        return content.toString();
+    }
+
+    /**
+     * 字符串加签
+     *
+     * @param signContent        待加密的参数字符串
+     * @param merchantPrivateKey 商家应用私钥
+     * @throws IOException
+     * @throws GeneralSecurityException
+     */
+    private static String getSign(String signContent, String merchantPrivateKey) throws IOException, GeneralSecurityException {
+        KeyFactory keyFactory = KeyFactory.getInstance("RSA");
+        byte[] encodedKey = readText(new ByteArrayInputStream(merchantPrivateKey.getBytes())).getBytes();
+        encodedKey = Base64.getDecoder().decode(encodedKey);
+        PrivateKey priKey = keyFactory.generatePrivate(new PKCS8EncodedKeySpec(encodedKey));
+
+        Signature signature = Signature.getInstance("SHA256WithRSA");
+        signature.initSign(priKey);
+        signature.update(signContent.getBytes("UTF-8"));
+        byte[] signed = signature.sign();
+        return new String(Base64.getEncoder().encode(signed));
+    }
+
+    private static String readText(InputStream in) throws IOException {
+        Reader reader = new InputStreamReader(in);
+        StringWriter writer = new StringWriter();
+
+        int bufferSize = 4096;
+        char[] buffer = new char[bufferSize];
+        int amount;
+        while ((amount = reader.read(buffer)) >= 0) {
+            writer.write(buffer, 0, amount);
+        }
+        return writer.toString();
+    }
+
+
+    // =====================================验签==============================================
+
+    /**
+     * 使用高德公钥验证签名
+     *
+     * @param paramFromAmap
+     * @return
+     * @throws Exception
+     */
+    public static boolean checkSign(Map<String, String> paramFromAmap) throws Exception {
+        //使用高德公钥进行验签，请在高德云店「API对接信息」页面直接获取高德公钥
+        String signContent = getSignContent(paramFromAmap);
+        return checkSign(signContent, paramFromAmap.get("sign"), AMAP_PUBLIC_KEY);
+    }
+
+    /**
+     * 对加密字符串进行验签
+     *
+     * @param content       待验签内容
+     * @param sign          待验证签名
+     * @param amapPublicKey 高德公钥
+     * @throws IOException
+     * @throws GeneralSecurityException
+     */
+    private static boolean checkSign(String content, String sign, String amapPublicKey) throws IOException, GeneralSecurityException {
+        KeyFactory keyFactory = KeyFactory.getInstance("RSA");
+        StringWriter writer = new StringWriter();
+        io(new InputStreamReader(new ByteArrayInputStream(amapPublicKey.getBytes())), writer);
+        byte[] encodedKey = writer.toString().getBytes();
+        encodedKey = org.apache.commons.codec.binary.Base64.decodeBase64(encodedKey);
+        PublicKey pubKey = keyFactory.generatePublic(new X509EncodedKeySpec(encodedKey));
+        Signature signature = Signature.getInstance("SHA256WithRSA");
+        signature.initVerify(pubKey);
+        signature.update(content.getBytes("UTF-8"));
+        return signature.verify(Base64.getDecoder().decode(sign.getBytes()));
+    }
+
+    public static void io(Reader in, Writer out) throws IOException {
+        int bufferSize = 4096;
+        char[] buffer = new char[bufferSize];
+        int amount;
+        while ((amount = in.read(buffer)) >= 0) {
+            out.write(buffer, 0, amount);
+        }
+    }
+}