怎么在自己的系统上（ERP，Java）调用别的网站上的webservice

protected boolean _getSaleSomeInfo(Context ctx, String object_key)    throws BOSException {        SaleOrderInfo saleOrderInfo =  getSaleOrder(ctx, object_key);        logger.info("******调用方法成功*******"+saleOrderInfo.getSiteOrderNumber());        boolean result = false;        if(null!= saleOrderInfo){            //预付款            BigDecimal theUseOfAdvancePayment = saleOrderInfo.getTheUseOfAdvancePayment();            theUseOfAdvancePayment = theUseOfAdvancePayment == null ? new BigDecimal("0") : theUseOfAdvancePayment;            //发生            BigDecimal divierAmount = saleOrderInfo.getDivierAmount();            divierAmount = divierAmount == null ? new BigDecimal("0") : divierAmount;            BigDecimal amountMoney = theUseOfAdvancePayment.subtract(divierAmount);            amountMoney = amountMoney == null ? new BigDecimal("0") : amountMoney;            String amount = amountMoney.toString();             String data_json = "{orderId:'"+object_key+"',amount:'"+amount+"'}";            //获取客户            CustomerInfo customerInfo = saleOrderInfo.getOrderCustomer();            String customerNumber= customerInfo.getNumber();            logger.info("订单客户number********"+customerNumber);            JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();              factory.setServiceClass(IWholesaleCheckBalanceWAS.class);            factory.setAddress("http://115.236.180.114:701/services/wholesaleCheckBalanceWAS?wsdl");            IWholesaleCheckBalanceWAS client = (IWholesaleCheckBalanceWAS) factory.create();              logger.info("调用client********"+client);            System.out.println("=============+++++++"+client);            String receive_result = client.execute("U001",compress(data_json),customerNumber);             if("true".equals(receive_result)){                result = true;                logger.info("调用全麦WSDL成功！"+saleOrderInfo.getSiteOrderNumber());            }else{                result = false;                logger.info("调用全麦WSDL失败！"+saleOrderInfo.getSiteOrderNumber());            }        }        return result;}