js sdk 签名

src/main/java/com/bsd/say/service/impl/WeixinService.java

@@ -44,6 +44,8 @@ public class WeixinService  extends WxOpenServiceImpl {
     private String getUnionIdUrl;
     @Value("${wechat.getWxUserInfoUrl}")
     private String getWxUserInfoUrl;
+    @Value("${wechat.getTicketUrl}")
+    private String getTicketUrl;
     @Resource
     private RedisTemplate redisTemplate;
 
@@ -140,4 +142,19 @@ public class WeixinService  extends WxOpenServiceImpl {
         logger.info("userInfo:"+ jsonObject.toString());
         return jsonObject;
     }
+
+    /**
+     * 通过accessToken刷新ticket
+     */
+    public void getTicket(){
+        String result1 = HttpRequestUtils.sendGet("https://api.weq.me/wx/token.php?id=15969759463491&key=1234567890123456");
+        JSONObject result2 = JSONObject.parseObject(result1);
+        String access_token = result2.getString("access_token");
+        String getTicketNewUrl = getTicketUrl + access_token + "&type=jsapi";
+        String ticketResult = HttpRequestUtils.sendGet(getTicketNewUrl);
+        JSONObject ticketJson = JSONObject.parseObject(ticketResult);
+        String jsapi_ticket = ticketJson.getString("ticket");
+        redisTemplate.opsForValue().set("jsapi_ticket",jsapi_ticket);
+    }
+
 }

src/main/java/com/bsd/say/util/wechat/Sign.java

@@ -0,0 +1,86 @@
+package com.bsd.say.util.wechat;
+
+import java.io.UnsupportedEncodingException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.Formatter;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+/**
+ * CK
+ * 2020/8/12
+ * 微信JS-SDK使用权限签名算法
+ */
+
+public class Sign {
+    public static void main(String[] args) {
+        String jsapi_ticket = "sM4AOVdWfPE4DxkXGEs8VMCPGGVi4C3VM0P37wVUCFvkVAy_90u5h9nbSlYy3-Sl-HhTdfl2fzFy1AOcHKP7qg";
+
+        // 注意 URL 一定要动态获取，不能 hardcode
+        String url = "http://mp.weixin.qq.com?params=value";
+        Map<String, String> ret = sign(jsapi_ticket, url);
+        for (Map.Entry<String,String> entry : ret.entrySet()) {
+            System.out.println(entry.getKey() + ", " + entry.getValue());
+        }
+    }
+
+    public static Map<String, String> sign(String jsapi_ticket, String url) {
+        Map<String, String> ret = new HashMap<String, String>();
+        String nonce_str = create_nonce_str();
+        String timestamp = create_timestamp();
+        String string1;
+        String signature = "";
+
+        //注意这里参数名必须全部小写，且必须有序
+        string1 = "jsapi_ticket=" + jsapi_ticket +
+                "&noncestr=" + nonce_str +
+                "&timestamp=" + timestamp +
+                "&url=" + url;
+//        System.out.println(string1);
+
+        try
+        {
+            MessageDigest crypt = MessageDigest.getInstance("SHA-1");
+            crypt.reset();
+            crypt.update(string1.getBytes("UTF-8"));
+            signature = byteToHex(crypt.digest());
+        }
+        catch (NoSuchAlgorithmException e)
+        {
+            e.printStackTrace();
+        }
+        catch (UnsupportedEncodingException e)
+        {
+            e.printStackTrace();
+        }
+
+        ret.put("url", url);
+        ret.put("jsapi_ticket", jsapi_ticket);
+        ret.put("nonceStr", nonce_str);
+        ret.put("timestamp", timestamp);
+        ret.put("signature", signature);
+
+        return ret;
+    }
+
+    private static String byteToHex(final byte[] hash) {
+        Formatter formatter = new Formatter();
+        for (byte b : hash)
+        {
+            formatter.format("%02x", b);
+        }
+        String result = formatter.toString();
+        formatter.close();
+        return result;
+    }
+
+    private static String create_nonce_str() {
+        return UUID.randomUUID().toString();
+    }
+
+    private static String create_timestamp() {
+        return Long.toString(System.currentTimeMillis() / 1000);
+    }
+}

src/main/resources/application.yml

@@ -54,6 +54,7 @@ wechat:
   getAccessTokenUrl: https://api.weixin.qq.com/sns/oauth2/component/access_token?appid=
   getUnionIdUrl: https://api.weixin.qq.com/sns/userinfo?access_token=
   getWxUserInfoUrl: https://api.weixin.qq.com/cgi-bin/user/info?access_token=
+  getTicketUrl: https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=
 
 
 bsd: