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我正在嘗試使用jetty-maven-plugin和no-xml彈簧配置，但在使用jettys自動類重新加載時遇到了問題。當我使用web.xml時，一切正常。重新加載jetty-maven-plugin 503的
的WebApplicationInitializer.java替換舊的web.xml
public class WebAppInitializer implements WebApplicationInitializer {
@Override
public void onStartup(ServletContext container) {
AnnotationConfigWebApplicationContext dispatcherContext = new AnnotationConfigWebApplicationContext();
dispatcherContext.register(DispatcherModule.class);
ServletRegistration.Dynamic dispatcher = container.addServlet("dispatcher", new DispatcherServlet(dispatcherContext));
dispatcher.setLoadOnStartup(1);
dispatcher.addMapping("/");
}
}
ApplicationModule annotated with @Configuration用於調度的servlet提供配置。
@Configuration
@EnableWebMvc
@ComponentScan("com.id.try")
public class DispatcherModule {
@Bean
public InternalResourceViewResolver internalResourceViewResolver() {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("/WEB-INF/pages/");
resolver.setSuffix(".jsp");
return resolver;
}
}
最後我POM文件拉依賴關係和配置jetty-maven-plugin
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<!-- Initial Config: Truncated -->
<properties>
<spring.version>3.2.3.RELEASE</spring.version>
<jetty.plugin.version>8.1.11.v20130520</jetty.plugin.version>
<java.version>1.7</java.version>
<javax.servlet-api.version>3.0.1</javax.servlet-api.version>
</properties>
<dependencies>
<!-- Dependencies Truncated: versions are above -->
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>${jetty.plugin.version}</version>
<configuration>
<scanIntervalSeconds>1</scanIntervalSeconds>
<webApp>
<contextPath>/</contextPath>
</webApp>
</configuration>
</plugin>
</plugins>
</build>
</project>
的問題是，當我在一個控制器改變的東西作爲比喻爲一個字符串後重新編譯，碼頭會做，因爲它應重新加載類時，檢測到更改並重新啓動，但它有一個NullPointerException
java.lang.NullPointerException
at com.id.tryconfiguration.WebAppInitializer.onStartup(WebAppInitializer.java:18)
at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:180)
at org.eclipse.jetty.plus.annotation.ContainerInitializer.callStartup(ContainerInitializer.java:106)
at org.eclipse.jetty.annotations.ServletContainerInitializerListener.doStart(ServletContainerInitializerListener.java:107)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.util.component.AggregateLifeCycle.doStart(AggregateLifeCycle.java:81)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:58)
at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:96)
at org.eclipse.jetty.server.handler.ScopedHandler.doStart(ScopedHandler.java:115)
at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:756)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:249)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1252)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:710)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:494)
at org.mortbay.jetty.plugin.JettyWebAppContext.doStart(JettyWebAppContext.java:293)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.mortbay.jetty.plugin.JettyRunMojo.restartWebApp(JettyRunMojo.java:435)
at org.mortbay.jetty.plugin.JettyRunMojo$1.filesChanged(JettyRunMojo.java:394)
at org.eclipse.jetty.util.Scanner.reportBulkChanges(Scanner.java:691)
at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:551)
at org.eclipse.jetty.util.Scanner.scan(Scanner.java:403)
at org.eclipse.jetty.util.Scanner$1.run(Scanner.java:353)
at java.util.TimerThread.mainLoop(Timer.java:555)
at java.util.TimerThread.run(Timer.java:505)
開始我試圖排除配置類es和WebApplicationInitializer.java但它不能解決問題。
如何讓SpringMVC使用no-xml和jetty class reloader？