我们正在构建一个 Web 应用程序,在启动 HttpServer
后,我尝试将一些项目从数据库加载到内存中。我知道如何利用服务层的最好方法是使用以下类:
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
public class ApplicationContextProvider implements ApplicationContextAware {
private static ApplicationContext applicationContext;
public static ApplicationContext getApplicationContext() {
return applicationContext;
}
public void setApplicationContext (ApplicationContext applicationContext) {
this.applicationContext = applicationContext;
}
}
它一直为空。
public static void main(String[] args) throws IOException {
final HttpServer server = HttpServer.createSimpleServer(".", 8181);
WebappContext ctx = new WebappContext("Socket", "/");
//enable annotation configuration
ctx.addContextInitParameter("contextClass", "org.springframework.web.context.support.AnnotationConfigWebApplicationContext");
ctx.addContextInitParameter("contextLocation", "com.production");
//allow spring to do all of it's stuff
ctx.addListener("org.springframework.web.context.ContextLoaderListener");
//serve static assets
StaticHttpHandler staticHttpHandler = new StaticHttpHandler("src/main/web");
server.getServerConfiguration().addHttpHandler(staticHttpHandler, "/");
//deploy
ctx.deploy(server);
//NULL
WorkflowService workflowService = (WorkflowService) ApplicationContextProvider.getApplicationContext().getBean("workflowService");
server.start();
服务类用@Service
注释,我的配置类是...
@Configuration
@ComponentScan(basePackages = {
"com.production"
})
@PropertySource(value= {
"classpath:/application.properties",
"classpath:/environment-${MYAPP_ENVIRONMENT}.properties"
})
@EnableJpaRepositories("com.fettergroup.production.repositories")
@EnableTransactionManagement
public class Config {
...
@Bean
public ApplicationContextProvider applicationContextProvider() {
return new ApplicationContextProvider();
}
}
我相信这个使用 grizzly WebContext
的应用程序的某些内容是问题的根源。但我不确定该怎么办。我已经做了一些谷歌搜索,看来我正在使用的解决方案应该有效......
最佳答案
contextLocation
初始化参数应为 contextConfigLocation
关于java - Web 应用程序的 ApplicationContext 为 null,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/15772328/