Spring4REST应用程序使用Java配置(无xml)IllegalArgumentException
这让我快发疯了。我已经完成了一些Spring编码,但这是我第一次尝试用Java进行所有配置。我搜索了stackoverflow和其他地方,虽然其他人看到了这个问题,但他们的解决方案对我都不起作用 以下是我的源文件: 初始值设定项:Spring4REST应用程序使用Java配置(无xml)IllegalArgumentException,java,spring,rest,spring-mvc,configuration,Java,Spring,Rest,Spring Mvc,Configuration,这让我快发疯了。我已经完成了一些Spring编码,但这是我第一次尝试用Java进行所有配置。我搜索了stackoverflow和其他地方,虽然其他人看到了这个问题,但他们的解决方案对我都不起作用 以下是我的源文件: 初始值设定项: public class EnhancedCandidateInfoInitializer extends AbstractAnnotationConfigDispatcherServletInitializer { private static final
public class EnhancedCandidateInfoInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
private static final Logger logger = LoggerFactory.getLogger(EnhancedCandidateInfoInitializer.class);
@Override
protected Class<?>[] getRootConfigClasses() {
logger.info("@@@@@ getRootConfigClasses called - returning null @@@@@");
return null;
}
@Override
protected Class<?>[] getServletConfigClasses() {
logger.info("@@@@@ getServletConfigClasses called returning EnhancedCandidateInfoWebConfiguration.class @@@@@");
return new Class[] { EnhancedCandidateInfoWebConfiguration.class };
}
@Override
protected String[] getServletMappings() {
logger.info("@@@@@ getServletMappings called @@@@@");
return new String[] { "/" };
}
}
控制器:
@RestController
public class EnhanceCandidateInfoController {
@RequestMapping("/")
public String welcome() {//Welcome page, non-rest
return "Welcome to RestTemplate Example.";
}
@RequestMapping("/hello/{player}")
public Message message(@PathVariable String player) {//REST Endpoint.
Message msg = new Message(player, "Hello " + player);
return msg;
}
}
当我构建应用程序并将其部署到tomcat时,我会得到以下异常堆栈跟踪:
原因:java.lang.IllegalArgumentException:未能注册名为“dispatcher”的servlet。请检查是否有另一个servlet以相同的名称注册。
位于org.springframework.util.Assert.notNull(Assert.java:115)
位于org.springframework.web.servlet.support.AbstractDispatcherServletInitializer.registerDispatcherServlet(AbstractDispatcherServletInitializer.java:98)
在org.springframework.web.servlet.support.AbstractDispatcherServletInitializer.onStartup上(AbstractDispatcherServletInitializer.java:71)
在org.springframework.web.SpringServletContainerInitializer.onStartup上(SpringServletContainerInitializer.java:169)
位于org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5274)
位于org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
正如我所说,我已经搜索了stackoverflow和其他地方,找到了其他有我相同问题的地方,但是当我尝试实施建议的修复时,我的问题仍然存在。提前感谢您的帮助。将您的
webmvc配置方法更改为:
public class EnhancedCandidateInfoWebConfiguration extends WebMvcConfigurerAdapter {
@Override
public void configureViewResolvers(ViewResolverRegistry registry) {
InternalResourceViewResolver ivr=new InternalResourceViewResolver();
ivr.setPrefix("/WEB-INF/jsp/");
ivr.setSuffix(".jsp");
ivr.setExposeContextBeansAsAttributes(true);
registry.viewResolver(ivr);
}
}
public class EnhancedCandidateInfoWebConfiguration extends WebMvcConfigurerAdapter {
@Override
public void configureViewResolvers(ViewResolverRegistry registry) {
InternalResourceViewResolver ivr=new InternalResourceViewResolver();
ivr.setPrefix("/WEB-INF/jsp/");
ivr.setSuffix(".jsp");
ivr.setExposeContextBeansAsAttributes(true);
registry.viewResolver(ivr);
}
}