code: public Map<String, String> querycontractBuild() {
  		Map<String, String> map = new HashMap<String, String>();
  
  		map.put("appid", getAppId());
  		map.put("mch_id", getMchId());
  
  		if (StrKit.notBlank(getPlanId())) {
  			map.put("plan_id", getPlanId());
  			map.put("contract_code", getContractCode());
  		} else {
  			map.put("contract_id", getContractId());
  		}
  		map.put("version", getVersion());
  		map.put("sign", PaymentKit.createSign(map, getPaternerKey()));
  
  		return map;
  	}
docs: 构建查询签约关系的Map
  
  @return 查询签约关系的Map