axis1.4 请求参数被soapenv包裹

axis1.4客户端请求参数为:
<?xml version="1.0" encoding="UTF-8"?>4ABOSSLog1SCNGWXYX2020-09-18 14:20:51chenxuguang2020-09-18 14:20:511-YDWX-10212公众号服务一键授权查询1一键授权查询成功01e2f63953da26dd658db6728a57dd56b公众号服务_一键授权127.0.0.1192.168.8.19
服务端接收参数:
<?xml version="1.0" encoding="UTF-8"?>soapenv:Body<?xml version="1.0" encoding="UTF-8"?>4ABOSSLog1SCNGWXYX2020-09-18 14:20:51chenxuguang2020-09-18 14:20:511-YDWX-10212公众号服务一键授权查询1一键授权查询成功01e2f63953da26dd658db6728a57dd56b公众号服务_一键授权127.0.0.1192.168.8.19/ns1:xxx/soapenv:Body/soap:Envelope
请教一下大佬们,为什么我的请求参数会被包裹起来。

代码:
try {
String realTime4aLogEndPointTarget = "http://localhost:9000/services/HelloServiceImpl?wsdl";
String realTime4aLogNamespaceUri = "http://localhost:9000/services/HelloServiceImpl?wsdl";
String realTime4aLogSoapActionUri = "http://localhost:9000/services/HelloServiceImpl?wsdl";

        org.apache.axis.client.Service service = new org.apache.axis.client.Service();
        Call call = (Call) service.createCall();
        call.setTargetEndpointAddress(new URL(realTime4aLogEndPointTarget));
        // WSDL里面描述的接口名称(要调用的方法)
        call.setOperationName(new QName(realTime4aLogNamespaceUri, "sayHello"));
        //跨平台调用加上这个
        if (true) {
            call.setUseSOAPAction(true);
            call.setSOAPActionURI(realTime4aLogSoapActionUri);
        }
        // 接口方法的参数名, 参数类型,参数模式 IN(输入), OUT(输出) or INOUT(输入输出)
        // 设置参数,在设定参数时,不使用服务端定义的参数名,而是arg0~argN来定义
        call.addParameter("arg0", XMLType.XSD_STRING, ParameterMode.IN);

        // 设置被调用方法的返回值类型
        call.setReturnType(XMLType.XSD_STRING);
        // 设置方法中参数的值
        // token = "32||114||-54||-10||-80||-69||-90||-126||71||17||-105||-60||89||-125||-121||-25||111||-111||115||-102||-51||69||-125||-125||90||-85||56||-128||-88||-92||112||-40||60||||40||113||-85||-91||3||-45||19||-31||69||-121||-87||74||92||-26||51||-73||-66||76||-113||54||-53||54||66||-34||-53||-47||-41||110||-65||-113||53||-16||-33||96||-127||-118||43||-33||69||-64||107";
        // appAcctId = "2002120151";
        //            String requestInfo = getRequesetInfo(serviceId, token, appAcctId);

// log.info(xmlStr);
String xmlStr = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>4ABOSSLog1SCNGWXYX2020-09-18 14:20:51chenxuguang2020-09-18 14:20:511-YDWX-10212公众号服务一键授权查询1一键授权查询成功01e2f63953da26dd658db6728a57dd56b公众号服务_一键授权127.0.0.1192.168.8.19";
String result = (String) call.invoke(new Object[]{xmlStr});
// log.warn("sso soap request result: {}", result);
// if (StringUtils.isBlank(result)) {
// log.error("sso soap request occur fail.");
// return;
// }
} catch (Exception e) {
// log.error("{}", e.getMessage(), e);
e.printStackTrace();
}```

axis用的是soap协议,因此你发送的内容会被放在soap信封(soapenv)中