nutzwx-1.62.jar
包名

package org.nutz.weixin.impl;

以下jssdk生成config的方法

public NutMap genJsSDKConfig(String url, String... jsApiList) {
		String jt = this.getJsapiTicket();
		long timestamp = System.currentTimeMillis();
		String nonceStr = R.UU64();

		String str = String.format("jsapi_ticket=%s&noncestr=%s&timestamp=%d&url=%s", jt, nonceStr, timestamp, url);
		String signature = Lang.sha1(str);

		NutMap map = new NutMap();
		map.put("appId", appid);
		map.put("timestamp", timestamp);
		map.put("nonceStr", nonceStr);
		map.put("signature", signature);
		map.put("jsApiList", jsApiList);
		return map;
	}

这里timestamp是毫秒级别，这样生成的signature 在页面调用相关接口，会报config:signature invalid
找到jssdk的官方demo其中使用的时间戳是秒，以下是demo

 private static String create_timestamp() {
        return Long.toString(System.currentTimeMillis() / 1000);
    }

 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;
    }