鲁班电商API的调用

1:首先获得应用的app_key以及appSecret.

2:系统级的输入参数为:app_key(应用key)/param_json(里面存储的是应用级输入参数)/method(调用的查询方法)/timestamp(当前时间格式:2019-03-04 12:02:03)/v(版本一般为:1)/sign(下面讲sign的获取)

3:sign的获取参考官方文档

注意:里面的参数顺序不能改变,否则会导致签名校验失败.(url上参数的传递顺序无所谓,生成sign的顺序,严格参照官方文档)

下面是自己的代码

public static String getLBSign(String app_key,String method,String param_json,String timestamp,String v,String app_secret){StringBuilder stringBUilder = new StringBuilder();// 按照要求把参数拼接stringBUilder.append("app_key").append(OrderConstent.app_key).append("method").append(method).append("param_json").append(param_json).append("timestamp").append(timestamp).append("v").append(v);String strBuild = stringBUilder.toString();// 拼接app_secret,得到未加密的signString signUnlock = app_secret+strBuild+app_secret;// 使用MD5加密得到加密的signString sign = DigestUtils.md5DigestAsHex(signUnlock.getBytes());return sign;}

4:调用api

接口的调用和其他接口的调用相同,我采用的是get请求方式

自己的controller层,其中OrderParam为自己定义的应用级输入参数的bean,可以从前端获取

@RequestMapping("/getOrderList")public String getOrderLists(@RequestParam(name = "method") String method,@RequestBody OrderParam orderParam){//String method = "order.list";String result= null;// method中的格式为xxx.xxx,把method中.替换成/String urlMethod = method.replace(".","/");String url = OrderConstent.url+urlMethod;System.out.println("url:"+url);ObjectMapper objectMapper = new ObjectMapper();// 获得当前时间Date now = new Date();SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//可以方便地修改日期格式String timestamp = dateFormat.format(now);try {// 把参数bean转成jsonString param_json = objectMapper.writeValueAsString(orderParam);System.out.println("param_json:"+param_json);// 得到加密的signString sign = LuBanUtils.getLBSign(OrderConstent.app_key,method,param_json,timestamp,OrderConstent.v,OrderConstent.app_secret);// 得到url路径上的param 就是把url上的参数放到map中便于循环统一使用URLEncoder.encode进行处理Map<String,String> map = LuBanUtils.getUrlParam(method,param_json,sign,timestamp);result = HttpUtils.getHttpResult(url,map);} catch (Exception e) {e.printStackTrace();}return result;}

使用HttpURLConnection连接调用

public static String getHttpResult(String strUrl, Map<String,String> mapParam){//buffer用于接受返回的字符StringBuffer buffer = new StringBuffer();String paramEncodeStr = urlEncode(mapParam);try{URL restServiceURL = new URL(strUrl+"?"+paramEncodeStr);System.out.println(strUrl+"?"+paramEncodeStr);HttpURLConnection httpConnection = (HttpURLConnection) restServiceURL.openConnection();httpConnection.setRequestMethod("GET");httpConnection.setRequestProperty("Accept", "application/json");if (httpConnection.getResponseCode() != 200) {throw new RuntimeException("HTTP GET Request Failed with Error code : "+ httpConnection.getResponseCode());}InputStream inStrm = httpConnection.getInputStream();byte []b=new byte[1024];int length=-1;while((length=inStrm.read(b))!=-1){buffer.append(new String(b,0,length));}return buffer.toString();}catch (Exception e){e.printStackTrace();}return "接口调用失败";}

在拼接url串时,url中的参数必须使用URLEncoder.encode进行处理

public static String urlEncode(Map<String,String> data){//将map里的参数变成像 showapi_appid=###&showapi_sign=###&的样子StringBuilder sb = new StringBuilder();for (Map.Entry i : data.entrySet()) {try {sb.append(i.getKey()).append("=").append(URLEncoder.encode(i.getValue()+"","utf-8")).append("&");//URLEncoder.encode} catch (UnsupportedEncodingException e) {e.printStackTrace();}}String urlParam = sb.toString().substring(0,sb.length()-1);return urlParam;}

5通过postman进行测试可以得到返回结果