整合springboot+dubbo优雅关机的相关问题 5C

有几个问题想跟大家交流下:
1.在正式环境中,是通过dubbo的com.alibaba.dubbo.container.Main启动服务
还是用springboot的容器来启动服务呢?

2.用springboot启动该如何实现优雅关机呢?

3.用dubbo Main启动又是怎么去加载application.yml文件的?

4.dubbo Main是通过读取spring配置文件来启动容器,而springboot的宗旨是零配置启动项目,基于这点,springboot对于dubbo的支持是不是就没那么好了

1个回答

首先是dubbo支不支持spring boot的问题而不是spring boot支持dubbo.对于spring boot 关机你可以看下spring boot actuator 里面有接口允许你进行重启关机等操作

u013198917
逍遥遥浪子 好的,我先了解看看,谢谢.
2 年多之前 回复
Csdn user default icon
上传中...
上传图片
插入图片
抄袭、复制答案,以达到刷声望分或其他目的的行为,在CSDN问答是严格禁止的,一经发现立刻封号。是时候展现真正的技术了!
其他相关推荐
整合springboot+dubbo优雅关机的相关问题

有几个问题想跟大家交流下: 1.在正式环境中,是通过dubbo的com.alibaba.dubbo.container.Main启动服务 还是用springboot的容器来启动服务呢? 2.用springboot启动该如何实现优雅关机呢? 3.用dubbo Main启动又是怎么去加载application.yml文件的? 4.dubbo Main是通过读取spring配置文件来启动容器,而springboot的宗旨是零配置启动项目,基于这点,springboot对于dubbo的支持是不是就没那么好了

springboot整合dubbo,注册服务。启动时报这个错误,怎么回事呢?

. ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v2.1.0.RELEASE) 2020-05-03 23:34:12.084 INFO 1156 --- [ main] com.provider.DemoApplication : Starting DemoApplication on u-PC with PID 1156 (D:\springboot-dubbo-test\provider\target\classes started by u in D:\springboot-dubbo-test) 2020-05-03 23:34:12.084 INFO 1156 --- [ main] com.provider.DemoApplication : No active profile set, falling back to default profiles: default 2020-05-03 23:34:12.672 INFO 1156 --- [ main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The dubbo config bean definition [name : com.alibaba.dubbo.config.ApplicationConfig#0, class : com.alibaba.dubbo.config.ApplicationConfig] has been registered. 2020-05-03 23:34:12.674 INFO 1156 --- [ main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The BeanPostProcessor bean definition [com.alibaba.dubbo.config.spring.beans.factory.annotation.DubboConfigBindingBeanPostProcessor] for dubbo config bean [name : com.alibaba.dubbo.config.ApplicationConfig#0] has been registered. 2020-05-03 23:34:12.674 INFO 1156 --- [ main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The dubbo config bean definition [name : com.alibaba.dubbo.config.RegistryConfig#0, class : com.alibaba.dubbo.config.RegistryConfig] has been registered. 2020-05-03 23:34:12.674 INFO 1156 --- [ main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The BeanPostProcessor bean definition [com.alibaba.dubbo.config.spring.beans.factory.annotation.DubboConfigBindingBeanPostProcessor] for dubbo config bean [name : com.alibaba.dubbo.config.RegistryConfig#0] has been registered. 2020-05-03 23:34:12.674 INFO 1156 --- [ main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The dubbo config bean definition [name : com.alibaba.dubbo.config.ProtocolConfig#0, class : com.alibaba.dubbo.config.ProtocolConfig] has been registered. 2020-05-03 23:34:12.675 INFO 1156 --- [ main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The BeanPostProcessor bean definition [com.alibaba.dubbo.config.spring.beans.factory.annotation.DubboConfigBindingBeanPostProcessor] for dubbo config bean [name : com.alibaba.dubbo.config.ProtocolConfig#0] has been registered. 2020-05-03 23:34:12.675 INFO 1156 --- [ main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The dubbo config bean definition [name : com.alibaba.dubbo.config.MonitorConfig#0, class : com.alibaba.dubbo.config.MonitorConfig] has been registered. 2020-05-03 23:34:12.675 INFO 1156 --- [ main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The BeanPostProcessor bean definition [com.alibaba.dubbo.config.spring.beans.factory.annotation.DubboConfigBindingBeanPostProcessor] for dubbo config bean [name : com.alibaba.dubbo.config.MonitorConfig#0] has been registered. 2020-05-03 23:34:12.722 ERROR 1156 --- [ main] o.s.boot.SpringApplication : Application run failed java.lang.IllegalStateException: Error processing condition on com.alibaba.boot.dubbo.actuate.autoconfigure.DubboEndpointAutoConfiguration.dubboEndpoint at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:64) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar:2.1.0.RELEASE] at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:108) ~[spring-context-5.1.2.RELEASE.jar:5.1.2.RELEASE] at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForBeanMethod(ConfigurationClassBeanDefinitionReader.java:181) ~[spring-context-5.1.2.RELEASE.jar:5.1.2.RELEASE] at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:141) ~[spring-context-5.1.2.RELEASE.jar:5.1.2.RELEASE] at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:117) ~[spring-context-5.1.2.RELEASE.jar:5.1.2.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:327) ~[spring-context-5.1.2.RELEASE.jar:5.1.2.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232) ~[spring-context-5.1.2.RELEASE.jar:5.1.2.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) ~[spring-context-5.1.2.RELEASE.jar:5.1.2.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) ~[spring-context-5.1.2.RELEASE.jar:5.1.2.RELEASE] at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:691) ~[spring-context-5.1.2.RELEASE.jar:5.1.2.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:528) ~[spring-context-5.1.2.RELEASE.jar:5.1.2.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) [spring-boot-2.1.0.RELEASE.jar:2.1.0.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.1.0.RELEASE.jar:2.1.0.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) [spring-boot-2.1.0.RELEASE.jar:2.1.0.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.0.RELEASE.jar:2.1.0.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.0.RELEASE.jar:2.1.0.RELEASE] at com.provider.DemoApplication.main(DemoApplication.java:12) [classes/:na] Caused by: java.lang.IllegalStateException: @ConditionalOnMissingBean did not specify a bean using type, name or annotation and the attempt to deduce the bean's type failed at org.springframework.boot.autoconfigure.condition.OnBeanCondition$BeanSearchSpec.validate(OnBeanCondition.java:451) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar:2.1.0.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition$BeanSearchSpec.<init>(OnBeanCondition.java:441) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar:2.1.0.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition$BeanSearchSpec.<init>(OnBeanCondition.java:416) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar:2.1.0.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchOutcome(OnBeanCondition.java:158) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar:2.1.0.RELEASE] at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar:2.1.0.RELEASE] ... 16 common frames omitted Caused by: org.springframework.boot.autoconfigure.condition.OnBeanCondition$BeanTypeDeductionException: Failed to deduce bean type for com.alibaba.boot.dubbo.actuate.autoconfigure.DubboEndpointAutoConfiguration.dubboEndpoint at org.springframework.boot.autoconfigure.condition.OnBeanCondition$BeanSearchSpec.addDeducedBeanTypeForBeanMethod(OnBeanCondition.java:496) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar:2.1.0.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition$BeanSearchSpec.addDeducedBeanType(OnBeanCondition.java:483) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar:2.1.0.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition$BeanSearchSpec.<init>(OnBeanCondition.java:435) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar:2.1.0.RELEASE] ... 19 common frames omitted Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/actuate/endpoint/AbstractEndpoint at java.lang.ClassLoader.defineClass1(Native Method) ~[na:1.8.0_131] at java.lang.ClassLoader.defineClass(ClassLoader.java:763) ~[na:1.8.0_131] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[na:1.8.0_131] at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) ~[na:1.8.0_131] at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[na:1.8.0_131] at java.net.URLClassLoader$1.run(URLClassLoader.java:368) ~[na:1.8.0_131] at java.net.URLClassLoader$1.run(URLClassLoader.java:362) ~[na:1.8.0_131] at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_131] at java.net.URLClassLoader.findClass(URLClassLoader.java:361) ~[na:1.8.0_131] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_131] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) ~[na:1.8.0_131] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_131] at java.lang.Class.forName0(Native Method) ~[na:1.8.0_131] at java.lang.Class.forName(Class.java:348) ~[na:1.8.0_131] at org.springframework.util.ClassUtils.forName(ClassUtils.java:275) ~[spring-core-5.1.2.RELEASE.jar:5.1.2.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition$BeanSearchSpec.getReturnType(OnBeanCondition.java:505) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar:2.1.0.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition$BeanSearchSpec.addDeducedBeanTypeForBeanMethod(OnBeanCondition.java:491) ~[spring-boot-autoconfigure-2.1.0.RELEASE.jar:2.1.0.RELEASE] ... 21 common frames omitted Caused by: java.lang.ClassNotFoundException: org.springframework.boot.actuate.endpoint.AbstractEndpoint at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_131] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_131] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) ~[na:1.8.0_131] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_131] ... 38 common frames omitted Process finished with exit code 1

springboot+dubbo在写单元测试的时候controller中的@Reference注解属性为null

问题描述 项目中运用springboot+dubbo注解方式的配置开发,正常启动项目没有什么问题,但是当我在写单元测试的时候,发现@Reference标注的属性为null,导致调用空指针异常. 相关代码 待测试方法: ``` @RestController @RequestMapping("/api/user") public class UserController { @Reference(version = "${dubbo.service.version}") private IUserService userService; @PostMapping(value="/login", produces="application/json;charset=UTF-8") public JsonApi login(String username, String password) { User search = new User(); search.setUsername(username); User user = userService.selectUserBy(search); if (StringUtils.isEmpty(user)){ search.setUsername(null); search.setEmail(username); user = userService.selectUserBy(search); } if (StringUtils.isEmpty(user)){ throw new AuthorizeException(ErrorCode.USER_UNKNOWN_ACCOUNT); } return JsonApi.isOk()..data(user); } } ``` 测试方法: ``` @RunWith(SpringJUnit4ClassRunner.class) @WebAppConfiguration @SpringBootTest public class UserControllerTest { private MockMvc mvc; @Before public void setUp() { mvc = MockMvcBuilders.standaloneSetup(new UserController()).build(); } @Test public void login() throws Exception { RequestBuilder request = post("/api/user/login") .contentType(MediaType.APPLICATION_JSON) .param("username","test") .param("password","123456"); String rs = mvc.perform(request) //.andDo(print()) .andExpect(status().isOk()) .andReturn() .getResponse() .getContentAsString(); System.out.println(rs); } } ``` 在运行测试用例的时候,发现private IUserService userService为空 ![图片说明](https://img-ask.csdn.net/upload/201809/26/1537953108_564995.png) 网上都是说和springMvc集成的时候加载顺序会导致这个空指针异常,但是我的项目正常启动是可以访问的,就是在测试用例的时候回出现空,不知道什么原因. 是哪里的配置没有配置对吗?

springBoot整合dubbo的能否配置在消费先启动后再启动提供者能让服务注入进去。

![就像这时候在提供者还未启动时,这个对象是空的就算后面dubbo检查到提供者以启动了,但是这个消费者还是空的没办法注入值](https://img-ask.csdn.net/upload/201709/30/1506759230_72813.png) 就像这时候在提供者还未启动时,这个对象是空的就算后面dubbo检查到提供者以启动了,但是这个消费者还是空的没办法注入值. 这样就有了个启动顺序在。运维那群人就不想(#><)

dubbo中服务提供者和消费者在一个应用中也是远程调用吗?

标准springboot代码,接口实现类上标注@Service注解,controller引用则标注@Autowired自动注入,controller和service在一个应用中。 1、现在要引入dubbo,那么接口实现类上加Dubbo的@Service注解,原来的springboot的注解还保留吗? 2、在调用的地方,如果把@Autowired换成dubbo的@Reference,提供者和消费者在一个应用中,是直接调用还是走rpc呢? 3、部署应用时,根据资源情况,有可能实现类和调用打包到一个应用中,也可能打包到不同应用中走rpc调用,是否调用处同时标注springboot的@Autowired和dubbo的@Reference呢?总之,我希望代码不动能同时支持两种情况,谢谢!

hessian在springboot项目下具体的应用

hessian怎么发数据,怎么接数据,在springboot项目中具体的应用是什么样的?求助各位大佬

dubbo+Springboot把jar包推到云服务器之后,zookeeper报错UnresolvedAddressException: null

问题是这样的,我买了个云服务器,想跑Springboot+dubbo的代码,这边是服务端。 Zookeeper做注册中心,是放在服务器上的,成功启动了,而且我在本地直接用IDEA跑jar包也没有任何问题。 但是!!!我把jar传上linux服务器之后启动,就出现了这个: ![图片说明](https://img-ask.csdn.net/upload/202004/15/1586933523_930013.png) 本地是正常的,ip/ip:2181这种 我就想知道 这个<unresolved> 是咋回事???!!! 疯了!!!我晕了,Web项目就OK,正常启动了。这两个项目不同的地方在于web使用了springboot的Parent,而dubbo服务是我手动配置然后repackage打包的, 可能需要自己跟进一下后续

springboot整合dubbo服务启动报错

SpringBoot1.5.1,Dubbo 2..8.4,JDK 1.8.0_171 zookeeper确定是启动的。 provider配置如下: ``` <!--定义了提供方应用信息,用于计算依赖关系;在 dubbo-admin 或 dubbo-monitor 会显示这个名字,方便辨识--> <dubbo:application name="demotest-provider" owner="programmer" organization="dubbox"/> <!--使用 zookeeper 注册中心暴露服务,注意要先开启 zookeeper--> <dubbo:registry address="zookeeper://localhost:2181"/> <!-- 用dubbo协议在20880端口暴露服务 --> <dubbo:protocol name="dubbo" port="20880" /> <!--使用 dubbo 协议实现定义好的接口--> <dubbo:service interface="cn.kaison.xblog.system.api.service.SystemService" ref="systemService" protocol="dubbo"></dubbo:service> <!--具体实现该接口的 bean--> <bean id="demoService" class="cn.kaison.xblog.system.provider.serviceImpl.SystemServiceImpl"></bean> ``` 项目结构: ![图片说明](https://img-ask.csdn.net/upload/201804/20/1524156832_387407.png) 启动后报错如下: 2018-04-20 00:43:04.775 WARN 18261 --- [ main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'cn.kaison.xblog.system.api.service.SystemService': Instantiation of bean failed; nested exception is java.lang.ExceptionInInitializerError 2018-04-20 00:43:04.779 WARN 18261 --- [ main] o.s.boot.SpringApplication : Error handling failed (Error creating bean with name 'cn.kaison.xblog.system.api.service.SystemService': Instantiation of bean failed; nested exception is java.lang.NoClassDefFoundError: Could not initialize class com.alibaba.dubbo.config.spring.ServiceBean) 2018-04-20 00:43:04.789 ERROR 18261 --- [ main] o.s.boot.SpringApplication : Application startup failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'cn.kaison.xblog.system.api.service.SystemService': Instantiation of bean failed; nested exception is java.lang.ExceptionInInitializerError at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1155) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1099) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866) ~[spring-context-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) ~[spring-context-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737) ~[spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370) ~[spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) ~[spring-boot-1.5.1.RELEASE.jar:1.5.1.RELEASE] at cn.kaison.xblog.system.provider.SysProviderApplication.main(SysProviderApplication.java:30) [classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_144] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_144] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_144] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_144] at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147) [idea_rt.jar:na] Caused by: java.lang.ExceptionInInitializerError: null at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_144] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_144] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_144] at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_144] at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:142) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:89) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1147) ~[spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] ... 20 common frames omitted Caused by: java.lang.IllegalStateException: fail to create adaptive instance: java.lang.IllegalStateException: Can not create adaptive extenstion interface com.alibaba.dubbo.rpc.Protocol, cause: Failed to load extension class(interface: interface com.alibaba.dubbo.common.compiler.Compiler, class line: com.alibaba.dubbo.common.compiler.support.JavassistCompiler) in jar:file:/Users/xiaohuchen/Documents/_my_soft/mavenrepo/com/alibaba/dubbo/2.8.4/dubbo-2.8.4.jar!/META-INF/dubbo/internal/com.alibaba.dubbo.common.compiler.Compiler, cause: javassist/ClassPath at com.alibaba.dubbo.common.extension.ExtensionLoader.getAdaptiveExtension(ExtensionLoader.java:459) ~[dubbo-2.8.4.jar:2.8.4] at com.alibaba.dubbo.config.ServiceConfig.<clinit>(ServiceConfig.java:62) ~[dubbo-2.8.4.jar:2.8.4] ... 27 common frames omitted Caused by: java.lang.IllegalStateException: Can not create adaptive extenstion interface com.alibaba.dubbo.rpc.Protocol, cause: Failed to load extension class(interface: interface com.alibaba.dubbo.common.compiler.Compiler, class line: com.alibaba.dubbo.common.compiler.support.JavassistCompiler) in jar:file:/Users/xiaohuchen/Documents/_my_soft/mavenrepo/com/alibaba/dubbo/2.8.4/dubbo-2.8.4.jar!/META-INF/dubbo/internal/com.alibaba.dubbo.common.compiler.Compiler, cause: javassist/ClassPath at com.alibaba.dubbo.common.extension.ExtensionLoader.createAdaptiveExtension(ExtensionLoader.java:723) ~[dubbo-2.8.4.jar:2.8.4] at com.alibaba.dubbo.common.extension.ExtensionLoader.getAdaptiveExtension(ExtensionLoader.java:455) ~[dubbo-2.8.4.jar:2.8.4] ... 28 common frames omitted Caused by: java.lang.IllegalStateException: Failed to load extension class(interface: interface com.alibaba.dubbo.common.compiler.Compiler, class line: com.alibaba.dubbo.common.compiler.support.JavassistCompiler) in jar:file:/Users/xiaohuchen/Documents/_my_soft/mavenrepo/com/alibaba/dubbo/2.8.4/dubbo-2.8.4.jar!/META-INF/dubbo/internal/com.alibaba.dubbo.common.compiler.Compiler, cause: javassist/ClassPath at com.alibaba.dubbo.common.extension.ExtensionLoader.loadFile(ExtensionLoader.java:685) ~[dubbo-2.8.4.jar:2.8.4] at com.alibaba.dubbo.common.extension.ExtensionLoader.loadExtensionClasses(ExtensionLoader.java:591) ~[dubbo-2.8.4.jar:2.8.4] at com.alibaba.dubbo.common.extension.ExtensionLoader.getExtensionClasses(ExtensionLoader.java:567) ~[dubbo-2.8.4.jar:2.8.4] at com.alibaba.dubbo.common.extension.ExtensionLoader.getAdaptiveExtensionClass(ExtensionLoader.java:728) ~[dubbo-2.8.4.jar:2.8.4] at com.alibaba.dubbo.common.extension.ExtensionLoader.createAdaptiveExtension(ExtensionLoader.java:721) ~[dubbo-2.8.4.jar:2.8.4] at com.alibaba.dubbo.common.extension.ExtensionLoader.getAdaptiveExtension(ExtensionLoader.java:455) ~[dubbo-2.8.4.jar:2.8.4] at com.alibaba.dubbo.common.extension.ExtensionLoader.createAdaptiveExtensionClass(ExtensionLoader.java:738) ~[dubbo-2.8.4.jar:2.8.4] at com.alibaba.dubbo.common.extension.ExtensionLoader.getAdaptiveExtensionClass(ExtensionLoader.java:732) ~[dubbo-2.8.4.jar:2.8.4] at com.alibaba.dubbo.common.extension.ExtensionLoader.createAdaptiveExtension(ExtensionLoader.java:721) ~[dubbo-2.8.4.jar:2.8.4] ... 29 common frames omitted Caused by: java.lang.NoClassDefFoundError: javassist/ClassPath at java.lang.Class.forName0(Native Method) ~[na:1.8.0_144] at java.lang.Class.forName(Class.java:348) ~[na:1.8.0_144] at com.alibaba.dubbo.common.extension.ExtensionLoader.loadFile(ExtensionLoader.java:627) ~[dubbo-2.8.4.jar:2.8.4] ... 37 common frames omitted Caused by: java.lang.ClassNotFoundException: javassist.ClassPath at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_144] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_144] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) ~[na:1.8.0_144] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_144] ... 40 common frames omitted

SpringBootDubbo集成问题

@Configuration @ConditionalOnClass(Exporter.class) @PropertySource(value = "classpath:/dubbo.properties") public class DubboConfiguration { @Value("${dubbo.application.name}") private String applicationName; @Value("${dubbo.application.logger}") private String logger; @Value("${dubbo.registry.protocol}") private String protocol; @Value("${dubbo.registry.address}") private String registryAddress; @Value("${dubbo.protocol.name}") private String protocolName; @Value("${dubbo.protocol.port}") private int protocolPort; @Value("${dubbo.protocol.serialization}") private String protocolSerialization; @Value("${dubbo.consumer.timeout}") private int consumerTimeout; @Value("${dubbo.consumer.retries}") private int consumerRetries; /** * 设置dubbo扫描包 */ @Bean public static AnnotationBean annotationBean(@Value("${dubbo.annotation.package}") String packageName) { AnnotationBean annotationBean = new AnnotationBean(); annotationBean.setPackage(packageName); return annotationBean; } /** * 注入dubbo上下文 */ @Bean public ApplicationConfig applicationConfig() { // 当前应用配置 ApplicationConfig applicationConfig = new ApplicationConfig(); applicationConfig.setName(applicationName); applicationConfig.setLogger(logger); return applicationConfig; } /** * 注入dubbo注册中心配置,基于zookeeper */ @Bean public RegistryConfig registryConfig() { // 连接注册中心配置 RegistryConfig registry = new RegistryConfig(); registry.setProtocol(protocol); registry.setAddress(registryAddress); return registry; } /** * 默认基于dubbo协议提供服务 */ @Bean public ProtocolConfig protocolConfig() { // 服务提供者协议配置 ProtocolConfig protocolConfig = new ProtocolConfig(); protocolConfig.setName(protocolName); protocolConfig.setSerialization(protocolSerialization); protocolConfig.setPort(protocolPort); protocolConfig.setThreads(200); System.out.println("默认protocolConfig:" + protocolConfig.hashCode()); return protocolConfig; } /** * dubbo服务提供 */ @Bean(name = "defaultConsumer") public ConsumerConfig consumerConfig() { ConsumerConfig consumerConfig = new ConsumerConfig(); consumerConfig.setTimeout(consumerTimeout); consumerConfig.setRetries(consumerRetries); return consumerConfig; } } 基于Configuration配置Dubbo服务,在没有加入AOP的时候,正常发布,但是如果dubbo服务类,符合AOP条件,那么会造成SpringBoot启动时,先生成了Proxy,导致 AnnotationBean.isMatchPackage方法检测Bean时,与配置的扫描包路径不符,致使dubbo服务注册被略过, 想用@Order来设置顺序(dubbo服务注册先于AOP代理生成),但并未生效,请问各位大神有没有能帮忙解决的。万分感谢! ![图片说明](https://img-ask.csdn.net/upload/201707/31/1501500049_406527.png)

dubbo2.6.6+zookeeper0.11+springboot2.0.0报错

com.alibaba.dubbo.rpc.RpcException: Fail to start server (url: dubbo://169.254.169.71:20880/com.wz.springboot.dubbo.zookeeper.maven.demo.api.service.UserService?anyhost=true&application=provider&bean.name=com.wz.springboot.dubbo.zookeeper.maven.demo.api.service.UserService&bind.ip=169.254.169.71&bind.port=20880&channel.readonly.sent=true&codec=dubbo&dubbo=2.0.2&generic=false&heartbeat=60000&interface=com.wz.springboot.dubbo.zookeeper.maven.demo.api.service.UserService&methods=findUser&pid=4512&side=provider&timestamp=1560308343938) Failed to bind NettyServer on /169.254.169.71:20880, cause: io/netty/bootstrap/ServerBootstrap

springboot 整合dubbox,采用外部应用服务器的servlet容器配置问题

<dubbo:protocol name="rest" server="servlet"/>在使用该配置使用外部容器时,官方说明: 如果你是用spring的ContextLoaderListener来加载spring,则必须保证BootstrapListener配置在ContextLoaderListener之前,否则dubbo初始化会出错。 是否有大神能够指导如何实现这个配置保证BootstrapListener在ContextLoaderListener之前完成配置?

dubbo如何正确关闭Spring容器

查看dubbo文档,Dubbo是通过JDK的ShutdownHook来完成优雅停机的: http://dubbo.io/User+Guide-zh.htm#UserGuide-zh-%E4%BC%98%E9%9B%85%E5%81%9C%E6%9C%BA 但能实现优雅停机的前提是,在启动时,需要指定参数-Ddubbo.shutdown.hook=true: com.alibaba.dubbo.container.Main.main源码: ``` if ("true".equals(System.getProperty(SHUTDOWN_HOOK_KEY))) { Runtime.getRuntime().addShutdownHook(new Thread() { public void run() { for (Container container : containers) { try { container.stop(); logger.info("Dubbo " + container.getClass().getSimpleName() + " stopped!"); } catch (Throwable t) { logger.error(t.getMessage(), t); } synchronized (Main.class) { running = false; Main.class.notify(); } } } }); } ``` 我的问题是,如果没有指定-Ddubbo.shutdown.hook=true而实际中采用kill PID(不是kill -9 PID)的方式来停止应用,Spring容器能正常关闭吗,Spring的bean能不能正确销毁?

spring boot 集成dubbox项目部署到tomcat下报错

2016-05-31 17:16:29 [ localhost-startStop-1:5445 ] - [ INFO ] org.springframework.cache.ehcache.EhCacheManagerFactoryBean.destroy(EhCacheManagerFactoryBean.java:181) Shutting down EhCache CacheManager 2016-05-31 17:16:29 [ localhost-startStop-1:5458 ] - [ ERROR ] org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:825) Application startup failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scheduledTasks': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.itanbank.admin.service.ItbCompanyService com.itanbank.admin.config.ScheduledTasks.itbCompanyService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'itbCompanyServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.itanbank.admin.repository.web.ItbCompanyRepository com.itanbank.admin.service.ItbCompanyServiceImpl.itbCompanyRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'itbCompanyRepository': Cannot create inner bean '(inner bean)#7623d14e' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#7623d14e': Cannot resolve reference to bean 'webEntityManager' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'webEntityManager': Post-processing of FactoryBean's singleton object failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.itanbank.admin.service.InvestFinishService': Cannot resolve reference to bean 'investFinishServiceImpl' while setting bean property 'ref'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'investFinishServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.itanbank.admin.repository.web.ItbTrafficGiveRepository com.itanbank.admin.service.InvestFinishServiceImpl.itbTrafficGiveRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'itbTrafficGiveRepository': Cannot create inner bean '(inner bean)#4f762393' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#4f762393': Cannot resolve reference to bean 'webEntityManager' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'webEntityManager': Post-processing of FactoryBean's singleton object failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.itanbank.admin.service.RegisterFinishService': Cannot resolve reference to bean 'registerFinishServiceImpl' while setting bean property 'ref'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'registerFinishServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.itanbank.admin.repository.web.ItbFriendInviteRepository com.itanbank.admin.service.RegisterFinishServiceImpl.itbFriendInviteRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'itbFriendInviteRepository': Cannot create inner bean '(inner bean)#403e1ecb' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#403e1ecb': Cannot resolve reference to bean 'webEntityManager' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'webEntityManager': Post-processing of FactoryBean's singleton object failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.itanbank.admin.service.BindBankFinishService': Cannot resolve reference to bean 'bindBankFinishServiceImpl' while setting bean property 'ref'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'bindBankFinishServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.itanbank.admin.repository.web.ItbTrafficGiveRepository com.itanbank.admin.service.BindBankFinishServiceImpl.itbTrafficGiveRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'itbTrafficGiveRepository': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalArgumentException: Repository interface must not be null on initialization! at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:764) at org.springframework.boot.SpringApplication.doRun(SpringApplication.java:357) at org.springframework.boot.SpringApplication.run(SpringApplication.java:305) at org.springframework.boot.context.web.SpringBootServletInitializer.run(SpringBootServletInitializer.java:149) at org.springframework.boot.context.web.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:129) at org.springframework.boot.context.web.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:85) at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:175) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5183) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:152) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:726) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:702) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:952) at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1823) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) 目前问题已有解决方案,简单描述下问题:dubbo的多个接口实现类中引用了相同的业务对象dao。把dao封装成service后注入问题就没有出现了。 但是实际问题还没有解决,求大神解答。

springboot整合了dubbo后 运行出Failed to bind properties under 'spring.dubbo.protocol' to com.alibaba.dubbo.config.ProtocolConfig:

![图片说明](https://img-ask.csdn.net/upload/202003/02/1583078781_129000.png)

一个dubbo配置超时的问题。求助。

最近有个dubbo的项目,有超时的问题。看了下配置文件 dubbo:reference 里配置的时间300秒 dubbo:registry 里也配置了一个超时时间3秒 各种超时问题 另一个环境两个的时间是反过来配置的,目前没发现这类问题。 想问下大神们,这两个地方配置的timeout作用分别是什么?

SSM+dubbo+zookeeper整合问题

我在虚拟机中安转了centos6.4,并启动zookeeper成功,在Windows 环境下启动maven中的tomcat报错,错误是 zookeeper中的server for null,这是怎么回事

关于Dubbo服务,如何做到热部署?

在实际环境中,如何做到Dubbo服务的热部署,不影响任何一个用户的请求。做到无感知升级。

dubbo webservice 调用

**项目原来用的是cxf 的webservice接口,需要集成dubbo系统。根据配置浏览器可以访问,但是原程序中,spring mvc的注入对象为null,详细问题如下: web.xml 主要代码** <context-param> <param-name>contextConfigLocation</param-name> <param-value> classpath*:/applicationContext.xml </param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!--dubbo 服务根路径--> <servlet> <servlet-name>dubbo</servlet-name> <servlet-class> com.alibaba.dubbo.remoting.http.servlet.DispatcherServlet </servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dubbo</servlet-name> <url-pattern>/webservice/*</url-pattern> </servlet-mapping> <servlet> <servlet-name>SearchEngine</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:/spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>SearchEngine</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <session-config> <session-timeout>30</session-timeout> </session-config> <listener> <listener-class>org.springframework.web.context.request.RequestContextListener </listener-class> </listener> **provider.xml** <dubbo:application name="dubbo-webservice-provider" /> <!-- registry address, used for service to register itself --> <dubbo:registry address="zookeeper://127.0.0.1:2181" /> <!-- 用webservice协议在8181端口暴露服务 --> <dubbo:protocol name="webservice" port="8181" server="servlet" /> <dubbo:service interface="com.chinasofti.searchengine.webservice.server.searchService.SearchService" ref="demoWSService" /> <bean id="demoWSService" class="com.chinasofti.searchengine.webservice.server.searchService.impl.SearchServiceImpl" /> **consumer.xml** <dubbo:application name="consumer" /> <!-- registry address, used for consumer to discover services --> <dubbo:registry address="zookeeper://127.0.0.1:2181" /> <dubbo:consumer timeout="5000"/> <!-- which service to consume? --> <dubbo:reference id="demoWSService" interface="com.chinasofti.searchengine.webservice.server.searchService.SearchService" url="webservice://192.168.1.25:8181/SearchEngine/webservice/com.chinasofti.searchengine.webservice.server.searchService.SearchService"/> **通过上边的配置,可以在浏览器中访问“http://localhost:8181/SearchEngine/webservice/com.chinasofti.searchengine.webservice.server.searchService.SearchService?wsdl”,可以访问。** **在客户端访问服务主要代码:** URL url = null; try { url = new URL("http://localhost:8181/SearchEngine/webservice/com.chinasofti.searchengine.webservice.server.searchService.SearchService?wsdl"); } catch (MalformedURLException e) { } Service service = new SearchService(url); SearchServicePortType port = ((SearchService) service).getSearchServicePort(); { com.chinasofti.searchengine.webservice.client.ws.SearchModel _searchAll_arg0 = null; com.chinasofti.searchengine.webservice.client.ws.MultConditionsVO _searchAll_arg1 = null; java.lang.String _searchAll__return = port.searchAll(searchModel,vo); } **通过调试,可以调用到服务端代码,但是服务端的spring mvc @Resource标签注入的对象为null。** @Resource(name = "conClassDaoImpl") private ConClassDao conClassDao; **调试时,上边的conClassDao为null。** **项目中调用其他功能spring 标签是可以注入的,也没有问题。 我是在原有的工程中集成dubbo配置的,哪个地方可能导致调用接口是spring 标签注入失败啊?跪求各位大神,谢谢啦!**

关于Dubbo配置的问题~ spring整合Dubbo出现问题。

![图片说明](https://img-ask.csdn.net/upload/201704/05/1491383979_484380.png) 首先,在没有添加这段代码前 ![图片说明](https://img-ask.csdn.net/upload/201704/05/1491384001_58968.png) tomcat 报了如上错误| ↑ | 貌似是jar包冲突了?我的问题1:为什么会报这个错?(框架是ssm)【添加了那段代码后,项目正常启动。】 ![图片说明](https://img-ask.csdn.net/upload/201704/05/1491384164_16351.png) 问题2: 这是dubbo的配置文件 , tomcat启动报了如下的错误,貌似是找不到端口。这个配置文件正确的写法应该是?????( 注:当删除这个配置文件的时候,项目可以正常启动 注2:192.168.2.129:2181这个也是没错的,会不会是防火墙的问题?) ![图片说明](https://img-ask.csdn.net/upload/201704/05/1491384213_628095.png)

dubbo:reference该怎么注入。

dubbo:reference引入的bean,该怎么注入,可以用注解@Autowired注入吗,或者@reference注入,还是只能set注入??? <!-- 引用 dubbo 服务 --> <dubbo:application name="atonement-shop-web" /> <dubbo:registry address="zookeeper://192.168.25.129:2181"/> <dubbo:reference id="sellerService" interface="com.atonement.sellergo ds.service.SellerService" > </dubbo:reference>

程序员的兼职技能课

程序员的兼职技能课

为linux系统设计一个简单的二级文件系统

实验目的: 通过一个简单多用户文件系统的设计,加深理解文件系统的内部功能及内部实现。 实验要求: 为linux系统设计一个简单的二级文件系统。要求做到以下几点: (1)可以实现下列几条命令(至少4条)

CCNA+HCNA+wireshark抓包综合网工技能提升套餐

本套餐包含思科路由交换CCNA,部分CCNP核心,华为HCNA以及wireshark抓包等类容,旨在培养具有综合能力的网络工程师。

董付国老师Python全栈学习优惠套餐

购买套餐的朋友可以关注微信公众号“Python小屋”,上传付款截图,然后领取董老师任意图书1本。

成年人用得到的6款资源网站!各个都是宝藏,绝对让你大饱眼福!

不管是学习还是工作,我们都需要一些资源帮助我们有效地解决实际问题。 很多人找资源只知道上百度,但是你们知道吗,有的资源是百度也搜索不出来的,那么今天小编就给大家介绍几款好用的资源网站,大家赶紧收入囊中吧! 1.网盘007 https://wangpan007.com/ 一款全能的资源搜索网站!只需要输入关键字,就能获得你想要的视频、音乐、压缩包等各种资源,网上...

矿车轴载荷计算方法的比较及选用

针对矿车轴的弯曲损坏,分析了固定式矿车车轴的受力,并对力叠加法以及当量负荷法2种计算方法进行了分析和比较,认为应采用当量负荷法进行车轴的设计计算。

Python数据清洗实战入门

Python数据清洗实战入门

C/C++跨平台研发从基础到高阶实战系列套餐

一 专题从基础的C语言核心到c++ 和stl完成基础强化; 二 再到数据结构,设计模式完成专业计算机技能强化; 三 通过跨平台网络编程,linux编程,qt界面编程,mfc编程,windows编程,c++与lua联合编程来完成应用强化 四 最后通过基于ffmpeg的音视频播放器,直播推流,屏幕录像,

Polar编码matlab程序

matlab实现的Polar codes源程序

2019全国大学生数学建模竞赛C题原版优秀论文

2019全国大学生数学建模竞赛C题原版优秀论文,PDF原版论文,不是图片合成的,是可编辑的文字版。共三篇。 C044.pdf C137.pdf C308.pdf

Linux常用命令大全(非常全!!!)

Linux常用命令大全(非常全!!!) 最近都在和Linux打交道,感觉还不错。我觉得Linux相比windows比较麻烦的就是很多东西都要用命令来控制,当然,这也是很多人喜欢linux的原因,比较短小但却功能强大。我将我了解到的命令列举一下,仅供大家参考: 系统信息 arch 显示机器的处理器架构 uname -m 显示机器的处理器架构 uname -r 显示正在使用的内核版本 d...

Linux下聊天室实现(基于C)

在linux下的基于TCP/IP,采用socket通信的聊天室,实现进入聊天室,进行多人群聊,指定人进行私聊,群主管理员功能,颗进行禁言,提出群聊等操作。个人账号可修改昵称或者修改密码,还可进行找回密

一个较完整的Qt用户登录界面设计

一个较完整的Qt用户登录界面,稍微移植可用,用sqlite数据库存储用户名和密码,具有增加和删除用户的功能,开发环境为ubuntu16.04+Qt5.6.1,win7下程序也编译可用。贡献出来,共同学

机器学习初学者必会的案例精讲

机器学习初学者必会的案例精讲

【C语言】贪吃蛇游戏代码(Visual C++6.0实现)

本游戏代码参考《C语言项目开发全程实录(第二版)》第六章。代码已在Visual C++6.0环境下编译测试通过,可在VC++6.0编译器中导入工程编译运行查看效果,或者也可以直接运行Release或D

Android小项目——新闻APP(源码)

Android小项目——新闻APP(源码),一个很简单的可以练手的Android Demo Ps:下载之前可以先看一下这篇文章——https://blog.csdn.net/qq_34149526/a

网络工程师小白入门--【思科CCNA、华为HCNA等网络工程师认证】

网络工程师小白入门--【思科CCNA、华为HCNA等网络工程师认证】

Android音视频开发全套

Android平台音视频开发全套,涉及:FFmpeg软解码解码、Mediacodec硬解码编码、Openssl音频播放、OpenGL ES视频渲染、RTMP推流等核心重要知识点。

YOLOv3目标检测实战:训练自己的数据集

YOLOv3目标检测实战:训练自己的数据集

2019 Python开发者日-培训

2019 Python开发者日-培训

2019 AI开发者大会

2019 AI开发者大会

Windows版YOLOv4目标检测实战:训练自己的数据集

Windows版YOLOv4目标检测实战:训练自己的数据集

4小时玩转微信小程序——基础入门与微信支付实战

4小时玩转微信小程序——基础入门与微信支付实战

因为看了这些书,我大二就拿了华为Offer

四年了,四年,你知道大学这四年我怎么过的么?

Python可以这样学(第四季:数据分析与科学计算可视化)

Python可以这样学(第四季:数据分析与科学计算可视化)

我说我不会算法,阿里把我挂了。

不说了,字节跳动也反手把我挂了。

技术大佬:我去,你写的 switch 语句也太老土了吧

昨天早上通过远程的方式 review 了两名新来同事的代码,大部分代码都写得很漂亮,严谨的同时注释也很到位,这令我非常满意。但当我看到他们当中有一个人写的 switch 语句时,还是忍不住破口大骂:“我擦,小王,你丫写的 switch 语句也太老土了吧!” 来看看小王写的代码吧,看完不要骂我装逼啊。 private static String createPlayer(PlayerTypes p...

YOLOv3目标检测实战系列课程

《YOLOv3目标检测实战系列课程》旨在帮助大家掌握YOLOv3目标检测的训练、原理、源码与网络模型改进方法。 本课程的YOLOv3使用原作darknet(c语言编写),在Ubuntu系统上做项目演示。 本系列课程包括三门课: (1)《YOLOv3目标检测实战:训练自己的数据集》 包括:安装darknet、给自己的数据集打标签、整理自己的数据集、修改配置文件、训练自己的数据集、测试训练出的网络模型、性能统计(mAP计算和画出PR曲线)和先验框聚类。 (2)《YOLOv3目标检测:原理与源码解析》讲解YOLOv1、YOLOv2、YOLOv3的原理、程序流程并解析各层的源码。 (3)《YOLOv3目标检测:网络模型改进方法》讲解YOLOv3的改进方法,包括改进1:不显示指定类别目标的方法 (增加功能) ;改进2:合并BN层到卷积层 (加快推理速度) ; 改进3:使用GIoU指标和损失函数 (提高检测精度) ;改进4:tiny YOLOv3 (简化网络模型)并介绍 AlexeyAB/darknet项目。

DirectX修复工具V4.0增强版

DirectX修复工具(DirectX Repair)是一款系统级工具软件,简便易用。本程序为绿色版,无需安装,可直接运行。 本程序的主要功能是检测当前系统的DirectX状态,如果发现异常则进行修复

C++语言基础视频教程

C++语言基础视频教程

相关热词 c# dbml文件 修改 c#遍历tree c# 能够控制单片机 c#对象写入数据库 c# 添加activex c#2005 json c# 数据库在云端 c# 字符串移位加密 c#禁用滚轮 c#实体类list去重复
立即提问