HttpClient实现签名并调用远程服务

青旅半醒 2022-04-14 04:52 275阅读 0赞

使用treeMap传参,实现字典序排列计算签名并调用请求

// 转发获取角色等级请求
    		Map<String, String> params = new TreeMap<String, String>();
    		params.put("zoneId", zoneId);
    		params.put("roleId", roleId);
    		params.put("appId", Constant.appId);
    		String timestamp = System.currentTimeMillis() + "";
    		params.put("timestamp", timestamp);
    
    		// 接收响应
    		String response = HttpClientUtils.signAndGet(Constant.level, params);
    		Map<String, Object> responseMap = JSON.parseObject(response);
    
    		// 状态码不为1000抛出异常
    		if ((int) responseMap.get("code") != 1000) {
    			throw new RRException((String) responseMap.get("msg"));
    		}
    		Map<String, Object> dataMap = (Map<String, Object>) responseMap.get("data");
    		String levelString = (String) dataMap.get("level");
    		return Integer.parseInt(levelString);
    		
    		public static String signAndGet(String url, Map<String, String> params){
    		    String sign = SignUtils.sign(params);
    	    	params.put("sign", sign);
    		    return doGet(url, params);
    	    }
    		public static String sign(Map<String, String> params) {
    		    StringBuffer sb = new StringBuffer();
    		    Iterator<Entry<String, String>> iter = params.entrySet().iterator();
    		    while (iter.hasNext()) {
    			    Entry<String, String> entry = (Entry<String, String>) iter.next();
    			    sb.append(entry.getKey()).append("=").append(entry.getValue()).append("&");
    		    }
    		    sb.append("key=" + Constant.key);
    		    String sign = sb.toString();
    		    sign = MD5Utils.string2MD5(sign).toUpperCase();
    		    return sign;
    	    }