how to get jbpm output variable? - drools

Question

I created the bpmn project and deployed it to the kieserver,how can I use the rest api of kieserver to call and obtain output variables ?
I have defined process variable in bpmn, but after calling and executing bpmn, I cannot get the process variable in the returned results.
The following are the request message and response message I called
Please help to see if there is a problem with the calling method or parameters
Url: http://127.0.0.1:8080/kie-server/services/rest/server/containers/instances/YgdPostLoanFinalResultDemo_1.0.0-SNAPSHOT
Request:
{
"commands":[
{
"set-global" : {
"identifier" : "output",
"object" : {
"com.ygdpostloan.OutputVariable" : {
"finalDecisionFlag" : "xxx",
"targetBehaviorStatus" : null
}
},
"out-identifier" : "output"
}
},
{
"start-process" : {
"processId" : "YgdPostLoanFinalResultProcess",
"data" : null,
"agendaFilter" : null,
"parameter" : [
{
"value" : {
"com.ygdpostloan.InputVariable":{
"sysCode" : "jyd",
"flagBQS" : null,
"flagRH" : null,
"flagXDXWJT" : null,
"resultBQS" : null,
"resultRH" : null,
"resultXDXWJT" : 3
}
},
"key" : "input"
}
],
"out-identifier" : "input"
}
}
]
}
Response:
{
"type" : "SUCCESS",
"msg" : "Container YgdPostLoanFinalResultDemo_1.0.0-SNAPSHOT successfully called.",
"result" : {
"execution-results" : {
"results" : [ {
"value" : {"com.ygdpostloan.OutputVariable":{
"finalDecisionFlag" : "xxx",
"targetBehaviorStatus" : null
}},
"key" : "output"
}, {
"value" : 13,
"key" : "input"
} ],
"facts" : [ ]
}
}
}
I receive result data through global variable , but I'm not sure whether this method is reasonable. I want to try to receive results through process variable
Variables alse cannot be obtained through the kie server client api
public static void main(String[] args) {
KieServices kieServices = KieServices.Factory.get();
CredentialsProvider credentialsProvider = new EnteredCredentialsProvider("kieserver", "kieserver");
KieServicesConfiguration kieServicesConfig = KieServicesFactory.newRestConfiguration("http://127.0.0.18080/kie-server/services/rest/server", credentialsProvider);
// Set the Marshaling Format to JSON. Other options are JAXB and XSTREAM
kieServicesConfig.setMarshallingFormat(MarshallingFormat.JSON);
KieServicesClient kieServicesClient = KieServicesFactory.newKieServicesClient(kieServicesConfig);
QueryServicesClient queryServicesClient = kieServicesClient.getServicesClient(QueryServicesClient.class);
List<ProcessDefinition> processes = queryServicesClient.findProcesses(0, 10);
System.out.println(processes);
// Retrieve the RuleServices Client.
ProcessServicesClient processServicesClient = kieServicesClient.getServicesClient(ProcessServicesClient.class);
ProcessDefinition processDefinition = processServicesClient.getProcessDefinition("YgdPostLoanFinalResultDemo_1.0.0-SNAPSHOT", "YgdPostLoanFinalResultProcess");
System.out.println(processDefinition);
Map<String, Object> inputMap = new HashMap<>();
Map<String, Object> intParamMap = new HashMap<>();
intParamMap.put("resultXDXWJT", 3);
intParamMap.put("sysCode", "111");
Map<String, Object> processParamMap = new HashMap<>();
InputVariable inputVariable = new InputVariable();
inputVariable.setResultXDXWJT(3);
inputVariable.setSysCode("111");
inputMap.put("com.ygdpostloan.InputVariable", inputVariable);
processParamMap.put("input", inputMap);
Long instanceId = processServicesClient.startProcess("YgdPostLoanFinalResultDemo_1.0.0-SNAPSHOT", "YgdPostLoanFinalResultProcess", processParamMap);
System.out.println(instanceId);
ProcessInstance processInstance1 = processServicesClient.getProcessInstance("YgdPostLoanFinalResultDemo_1.0.0-SNAPSHOT", instanceId, true);
System.out.println(processInstance1);
//Map<String, Object> processInstanceVariables = processServicesClient.getProcessInstanceVariables("YgdPostLoanFinalResultDemo_1.0.0-SNAPSHOT", instanceId);
//System.out.println(processInstanceVariables);
List<NodeInstance> completedNodeInstances = queryServicesClient.findCompletedNodeInstances(instanceId, 0, 10);
System.out.println(completedNodeInstances);
//Map<String, Object> processInstanceVariables = processServicesClient.getProcessInstanceVariables("YgdPostLoanFinalResultDemo_1.0.0-SNAPSHOT", instanceId);
ProcessInstance processInstance = queryServicesClient.findProcessInstanceById(instanceId);
System.out.println(processInstance);
Map<String, Object> variables = processInstance.getVariables();
System.out.println(variables); // return null
}