Question

我正在使用JSF（Primeface）和j2ee在weblogic上工作。

所以，我的应用程序中有两个不同的流程：

流程配置：

public class RequestFlow implements Serializable {
@Produces
@FlowDefinition
public Flow defineFlow(@FlowBuilderParameter FlowBuilder flowBuilder) {
    String flowId = "requestFlow";
    flowBuilder.id("", flowId);
    flowBuilder.viewNode(flowId, "/inside/customer/request/flow/requestFlow.xhtml").markAsStartNode();
    flowBuilder.viewNode("requestFlowCart", "/inside/customer/request/flow/requestFlowCart.xhtml");
    flowBuilder.viewNode("requestFlowCheckout", "/inside/customer/request/flow/requestFlowCheckout.xhtml");
    flowBuilder.returnNode("finishRequest").fromOutcome("/inside/customer/request/requests.xhtml");

    return flowBuilder.getFlow();
}
}

CDI的流程bean：

@Named
@FlowScoped("requestFlow")
public class RequestFlowBean implements Serializable {
   //some logic
}

第二种配置：

公共类OrderFlow实现Serializable {

@Produces
@FlowDefinition
public Flow defineFlow(@FlowBuilderParameter FlowBuilder flowBuilder) {
    String flowId = "orderFlow";
    flowBuilder.id("", flowId);
    flowBuilder.viewNode(flowId, "/inside/customer/order/flow/orderFlow.xhtml").markAsStartNode();
    flowBuilder.viewNode("orderFlowSelectRequests", "/inside/customer/order/flow/orderFlowSelectRequests.xhtml");
    flowBuilder.viewNode("orderFlowReviewRequests", "/inside/customer/order/flow/orderFlowReviewRequests.xhtml");
    flowBuilder.viewNode("orderFlowCheckoutOrder", "/inside/customer/order/flow/orderFlowCheckoutOrder.xhtml");
    flowBuilder.returnNode("finishOrder").fromOutcome("/inside/customer/order/orders.xhtml");

    return flowBuilder.getFlow();
}
}

CDI的流程bean：

@Named
@FlowScoped("orderFlow")
public class OrderFlowBean implements Serializable {
    //some logic
}

我的案例：

用户打开页面，点击h：按钮启动“requestFlow”（未完成！）
使用菜单导航到另一个页面，点击h：按钮尝试启动“orderFlow”。

问题： “OrderFlow”在控制台没有任何错误的情况下无法启动！并且第一个流程仍在记忆中，但根据文档，它必须被销毁。

所以，我希望能够在其他的bean未完成时创建一个新的FlowScoped bean。

有什么建议吗？

Answer 1

所以，正好在2个月内我找到了答案。诀窍是你如何开始你的流程。如果你想运行新的JSF流程，虽然没有完成其他的，你必须从JSF上下文中删除任何流程的先前实例。为了做到这一点，你在控制器中添加了方法：

public String initFlow() {
    FacesContext context = FacesContext.getCurrentInstance();
    FlowHandler handler = context.getApplication().getFlowHandler();

    ExternalContext extContext = context.getExternalContext();
    String sessionKey = extContext.getClientWindow().getId() + "_flowStack";
    Map<String, Object> sessionMap = extContext.getSessionMap();
    if (sessionMap.containsKey(sessionKey)) {
        sessionMap.remove(sessionKey);
    }
    handler.transition(context, null, handler.getFlow(context, "", getFlowName()), null, "");
    return getFlowName();
}

然后以下一个方式启动流程页面：

<p:commandButton value="Start Flow"
    action="#{controller.initFlow}"/>
</p:panelGrid>

当其他bean未完成时，创建一个新的FlowScoped bean

1 个答案: