spring-集成文件使用 java 1.6

Question

我正在尝试运行语音切换程序 java 1.6，我无法更改它。

现在运行宁

@Bean
    @InboundChannelAdapter(value = "fileInputChannel", poller = @Poller(fixedDelay = "5000"))
    public MessageSource<File> fileReadingMessageSource() {
        FileReadingMessageSource source = new FileReadingMessageSource();
        source.setDirectory(new File(folderPath));
        CompositeFileListFilter fileListFilter = new CompositeFileListFilter();
        fileListFilter.addFilters(new IgnoreHiddenFileListFilter());
        fileListFilter.addFilters(new FileSystemPersistentAcceptOnceFileListFilter(propertiesPersistingMetadataStore(),"cdrs"));
        fileListFilter.addFilters(new RegexPatternFileListFilter(fileRegex));
//        fileListFilter.addFilters(new LastModifiedFileListFilter()); // This is to confirm that the file did not change for the past 60 second
        source.setFilter(fileListFilter);
        return source;
    }

我收到这个错误

Caused by: java.lang.NoClassDefFoundError: java/nio/file/StandardWatchEventKinds
        at org.springframework.integration.file.FileReadingMessageSource$WatchEventType.<clinit>(FileReadingMessageSource.java:411) ~[spring-integration-file-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
        at org.springframework.integration.file.FileReadingMessageSource.<init>(FileReadingMessageSource.java:117) ~[spring-integration-file-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
        at org.springframework.integration.file.FileReadingMessageSource.<init>(FileReadingMessageSource.java:123) ~[spring-integration-file-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
        at com.config.RootConfiguration.fileReadingMessageSource(RootConfiguration.java:84) ~[classes!/:0.0.1-SNAPSHOT]
        at com.config.RootConfiguration$$EnhancerBySpringCGLIB$f678755.CGLIB$fileReadingMessageSource(<generated>) ~[classes!/:0.0.1-SNAPSHOT]
        at com.config.RootConfiguration$$EnhancerBySpringCGLIB$f678755$$FastClassBySpringCGLIB$198f53.invoke(<generated>) ~[classes!/:0.0.1-SNAPSHOT]
        at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) ~[spring-core-4.3.4.RELEASE.jar!/:4.3.4.RELEASE]
        at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:356) ~[spring-context-4.3.4.RELEASE.jar!/:4.3.4.RELEASE]
        at com.config.RootConfiguration$$EnhancerBySpringCGLIB$f678755.fileReadingMessageSource(<generated>) ~[classes!/:0.0.1-SNAPSHOT]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.6.0_36]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.6.0_36]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.6.0_36]
        at java.lang.reflect.Method.invoke(Method.java:622) ~[na:1.6.0_36]
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ~[spring-beans-4.3.4.RELEASE.jar!/:4.3.4.RELEASE]
        ... 41 common frames omitted
Caused by: java.lang.ClassNotFoundException: java.nio.file.StandardWatchEventKinds
        at java.net.URLClassLoader.run(URLClassLoader.java:217) ~[na:1.6.0_36]
        at java.security.AccessController.doPrivileged(Native Method) ~[na:1.6.0_36]
        at java.net.URLClassLoader.findClass(URLClassLoader.java:205) ~[na:1.6.0_36]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:323) ~[na:1.6.0_36]
        at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:94) ~[filetail-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:268) ~[na:1.6.0_36]
        ... 55 common frames omitted

我可以停止使用 nio watch 吗，因为它用 @UsesJava7 注释，或者我应该实现我自己的 FileReadingMessageSource

Answer 1

这是一个错误； watch 服务曾经是可选的（外部的）class；它在 4.3 中作为内部 class 嵌入以避免一些配置问题。解决方法是退回到 4.2.12 版本。我开了一个JIRA Issue。

spring-集成文件使用 java 1.6

spring-integration-file using java 1.6

spring-integration

java-6