Question

我正在使用新的弹簧集成版本测试我现有的应用程序。不幸的是，我遇到了意想不到的异常，如下所示：

Caused by: java.lang.UnsupportedOperationException: null
    at org.springframework.integration.dsl.StandardIntegrationFlow.configure(StandardIntegrationFlow.java:64) ~[spring-integration-java-dsl-1.2.1.RELEASE.jar:na]
    at org.springframework.integration.dsl.IntegrationFlowDefinition.wireTap(IntegrationFlowDefinition.java:341) ~[spring-integration-java-dsl-1.2.1.RELEASE.jar:na]
    at org.springframework.integration.dsl.IntegrationFlowDefinition.wireTap(IntegrationFlowDefinition.java:276) ~[spring-integration-java-dsl-1.2.1.RELEASE.jar:na]
    at com.smartplan.maiscontrole.config.ReportGenerationFlowConfig.buildFlow(ReportGenerationFlowConfig.java:49) ~[main/:na]

我的代码，实际上看起来像：

@Override
protected IntegrationFlowDefinition<?> buildFlow() {
    return this.from(this.requestChannel())               
               .wireTap(this.sideEffectFlow())               
               .channel(new NullChannel());
}

@Bean
MessageChannel requestChannel() {
    return MessageChannels.direct();
}

@Bean
IntegrationFlow sideEffectFlow() {
    return f -> f.handle(System.out::println);
}

关于此的任何线索？

Answer 1

M-m-m，我认为它真的是@Bean。尝试从sideEffectFlow删除CodeScanner.getInstance().scanBarCode(new ScanResult() { public void scanCompleted(String contents, String formatName, byte[] rawBytes) { //barCode.setText("Bar: " + contents); cnt.addComponent(new Label(contents)); cnt.revalidate(); } public void scanCanceled() { System.out.println("cancelled"); } public void scanError(int errorCode, String message) { System.out.println("err " + message); } });。

嵌套流不能是bean。或者通过渠道连接它们。

弹簧集成更新后，有线点击中的UnsupportedOperationException

1 个答案: