Integrating Data :: Learn how to build an application that uses Spring Integration to fetch data, process it, and write it to a file.
Home Page: http://spring.io/guides/gs/integration/
License: Apache License 2.0
I found when following this guide that System.in.read() in Application.java did not pause as expected when using gradlew bootRun. (It did work with the standalone jar.) Apparently, this is due to a default override in Gradle.
https://discuss.gradle.org/t/why-doesnt-system-in-read-block-when-im-using-gradle/3308
http://stackoverflow.com/questions/13172137/console-application-with-java-and-gradle
The workaround is to add the following to the build script.
bootRun {
standardInput = System.in
}
Little issues like this are a source of friction when getting started, so it would be good to either update the build script or add a footnote about it.
if using : compile("org.springframework.integration:spring-integration-twitter:3.0.0.RELEASE")
then we have error :
java.lang.ClassNotFoundException: org.springframework.integration.MessagingException
fixed by upgrading the version to this :
compile("org.springframework.integration:spring-integration-twitter:4.0.2.RELEASE")
@Autowired
private SourcePollingChannelAdapter newsAdapter;
idea prompt error：
Could not autowire. No beans of 'SourcePollingChannelAdapter' type found.
On the main page(https://spring.io/guides/gs/integration/), the guide asks users to create the standard src/main/java/hello bunch of directories, but the application actually has the directory structure src/main/java/blog/. This isn't my first guide, so not a problem for me. But it could be a problem for someone not familiar with things.
Quote:
Create the directory structure
In a project directory of your choosing, create the following subdirectory structure; for example, with mkdir -p src/main/java/hello on *nix systems:
└── src
└── main
└── java
└── hello
When running the project from the commandline, I encounter a SAXParseException. If I downgrade Spring Boot from 1.4.0 to 1.3.7, the problem goes away.
Steps to reproduce:
git clone https://github.com/spring-guides/gs-integration.git
cd gs-integration/complete
gradle wrapper
./gradlew build
java -jar build/libs/gs-integration-0.1.0.jar
Encounter Exception:
org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 25 in XML document from class path resource [hello/integration.xml] is invalid; nested exception is org.xml.sax.SAXParseException; lineNumber: 25; columnNumber: 59; cvc-complex-type.3.2.2: Attribute 'mode' is not allowed to appear in element 'file:outbound-channel-adapter'.
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:399) ~[spring-beans-4.3.2.RELEASE.jar!/:4.3.2.RELEASE]
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:336) ~[spring-beans-4.3.2.RELEASE.jar!/:4.3.2.RELEASE]
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304) ~[spring-beans-4.3.2.RELEASE.jar!/:4.3.2.RELEASE]
at org.springframework.boot.BeanDefinitionLoader.load(BeanDefinitionLoader.java:180) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.BeanDefinitionLoader.load(BeanDefinitionLoader.java:207) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.BeanDefinitionLoader.load(BeanDefinitionLoader.java:144) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.BeanDefinitionLoader.load(BeanDefinitionLoader.java:127) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.load(SpringApplication.java:701) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:364) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:311) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at hello.Application.main(Application.java:8) [classes!/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_60]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_60]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_60]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_60]
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [gs-integration-0.1.0.jar:na]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [gs-integration-0.1.0.jar:na]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) [gs-integration-0.1.0.jar:na]
at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:58) [gs-integration-0.1.0.jar:na]
Caused by: org.xml.sax.SAXParseException: cvc-complex-type.3.2.2: Attribute 'mode' is not allowed to appear in element 'file:outbound-channel-adapter'.
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:203) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:134) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:437) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:368) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:325) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator$XSIErrorReporter.reportError(XMLSchemaValidator.java:458) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.reportSchemaError(XMLSchemaValidator.java:3237) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.processAttributes(XMLSchemaValidator.java:2714) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:2056) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.emptyElement(XMLSchemaValidator.java:766) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:356) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2786) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:117) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:243) ~[na:1.8.0_60]
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:348) ~[na:1.8.0_60]
at org.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:76) ~[spring-beans-4.3.2.RELEASE.jar!/:4.3.2.RELEASE]
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadDocument(XmlBeanDefinitionReader.java:429) ~[spring-beans-4.3.2.RELEASE.jar!/:4.3.2.RELEASE]
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:391) ~[spring-beans-4.3.2.RELEASE.jar!/:4.3.2.RELEASE]
... 18 common frames omitted
Update the guide to use the most recent Spring Boot version.
Files that require changes are:
initial/build.gradle
initial/pom.xml
complete/build.gradle
complete/pom.xml
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