我在Spring Boot中出错
2018-06-23 00:51:20.240 INFO 2053 --- [ restartedMain] org.tyrik.toys.App : Starting App on promote.cache-dns.local with PID 2053 (/Volumes/Lab/toys/target/classes started by tyrik in /Volumes/Lab/toys)
2018-06-23 00:51:20.242 INFO 2053 --- [ restartedMain] org.tyrik.toys.App : No active profile set, falling back to default profiles: default
2018-06-23 00:51:20.284 INFO 2053 --- [ restartedMain] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@40959417: startup date [Sat Jun 23 00:51:20 CST 2018]; root of context hierarchy
2018-06-23 00:51:21.267 INFO 2053 --- [ restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$2f930cf8] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-06-23 00:51:21.583 INFO 2053 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8888 (http)
2018-06-23 00:51:21.607 INFO 2053 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2018-06-23 00:51:21.607 INFO 2053 --- [ restartedMain] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.31
2018-06-23 00:51:21.611 INFO 2053 --- [ost-startStop-1] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/Users/tyrik/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.]
2018-06-23 00:51:21.701 INFO 2053 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2018-06-23 00:51:21.701 INFO 2053 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1419 ms
2018-06-23 00:51:21.827 INFO 2053 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Servlet dispatcherServlet mapped to [/]
2018-06-23 00:51:21.830 INFO 2053 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-06-23 00:51:21.831 INFO 2053 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-06-23 00:51:21.831 INFO 2053 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2018-06-23 00:51:21.831 INFO 2053 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2018-06-23 00:51:21.831 INFO 2053 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'corsFilter' to: [/*]
2018-06-23 00:51:21.992 INFO 2053 --- [ restartedMain] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2018-06-23 00:51:22.003 INFO 2053 --- [ restartedMain] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [
name: default
...]
2018-06-23 00:51:22.056 INFO 2053 --- [ restartedMain] org.hibernate.Version : HHH000412: Hibernate Core {5.2.17.Final}
2018-06-23 00:51:22.057 INFO 2053 --- [ restartedMain] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
2018-06-23 00:51:22.180 INFO 2053 --- [ restartedMain] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
2018-06-23 00:51:22.266 INFO 2053 --- [ restartedMain] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2018-06-23 00:51:23.110 INFO 2053 --- [ restartedMain] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2018-06-23 00:51:23.121 INFO 2053 --- [ restartedMain] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
2018-06-23 00:51:23.955 INFO 2053 --- [ restartedMain] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2018-06-23 00:51:23.973 WARN 2053 --- [ restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'moduleController' defined in file [/Volumes/Lab/toys/target/classes/org/tyrik/toys/api/ModuleController.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.tyrik.toys.service.ModuleService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}
2018-06-23 00:51:23.973 INFO 2053 --- [ restartedMain] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2018-06-23 00:51:23.974 INFO 2053 --- [ restartedMain] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2018-06-23 00:51:24.244 INFO 2053 --- [ restartedMain] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
2018-06-23 00:51:24.249 INFO 2053 --- [ restartedMain] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2018-06-23 00:51:24.264 INFO 2053 --- [ restartedMain] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-06-23 00:51:24.371 ERROR 2053 --- [ restartedMain] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Parameter 0 of constructor in org.tyrik.toys.api.ModuleController required a bean of type 'org.tyrik.toys.service.ModuleService' that could not be found.
Action:
Consider defining a bean of type 'org.tyrik.toys.service.ModuleService' in your configuration.
Process finished with exit code 0
moduleContraller
@RestController
@RequestMapping("/module")
@Validated
public class ModuleController {
private Logger log = LoggerFactory.getLogger(this.getClass());
private final ModuleService moduleService;
private final ResultGenerator generator;
@Autowired
public ModuleController(ModuleService moduleService, ResultGenerator generator) {
this.moduleService = moduleService;
this.generator = generator;
}
@PostMapping("/add")
public RestResult addModule(@Valid Module module){
return generator.getSuccessResult("添加模块成功", moduleService.saveModule(module));
}
@GetMapping("/all")
public RestResult getModule(){
return generator.getSuccessResult("查找成功", moduleService.getModule());
}
@GetMapping("/{id}")
public RestResult getModuleByMID(@PathVariable("id") Integer MID){
return generator.getSuccessResult("查找成功", moduleService.getModuleByMID(MID));
}
@PutMapping("/edit/{id}")
public RestResult editModule(@PathVariable("id") Integer MID, String title, String description){
return generator.getSuccessResult("修改成功", moduleService.editModule(MID, title, description));
}
@DeleteMapping("/remove/{id}")
public void removeModule(@PathVariable("id")Integer MID) {
moduleService.removeModuleByID(MID);
}
}
ModuleRepository
package org.tyrik.toys.repository;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
import org.tyrik.toys.entity.Module;
@Repository
public interface ModuleRepository extends JpaRepository<Module, Integer> {
}
这里还有ModuleService
/**
* 模块接口
*/
public interface ModuleService {
Module saveModule(Module module);
List<Module> getModule();
Optional<Module> getModuleByMID(Integer MID);
Module editModule(Integer MID, String title, String description);
void removeModuleByID(Integer MID);
}
ModuleServiceImpl在这里
@Service("ModuleService")
public class ModuleServiceImpl implements ModuleService{
@Autowired
ModuleRepository moduleRepository;
private Module moudle;
@Override
public Module saveModule(Module module) {
return moduleRepository.save(module);
}
@Override
public List<Module> getModule() {
return moduleRepository.findAll();
}
@Override
public Optional<Module> getModuleByMID(Integer MID) {
return moduleRepository.findById(MID);
}
@Override
public Module editModule(Integer MID, String title, String description) {
Module m = new Module();
m.setMID(MID);
m.setTitle(title);
m.setDescription(description);
return moduleRepository.save(m);
}
@Override
public void removeModuleByID(Integer MID) {
moduleRepository.deleteById(MID);
}
}
现在我无法入睡。这个问题困扰了我整整一整天，希望你们能帮助我解决问题。
答案 0 :(得分：0)
您在“应用程序”上下文中没有服务。可能的错误是 您的主类没有附加@EnableAutoConfiguration注释。
如果要测试此错误，只需在主类中创建此Bean：
@Bean
public ModuleService moduleService(ModuleRepository moduleRepository) {
return new ModuleServiceImpl(moduleRepository);
}
答案 1 :(得分：0)
您能否检查主类是否已定义ComponentScan或将basePackages传递给SpringBootApplication批注？不带任何包的@SpringBootApplication应该也可以工作，因为您将App.java放在了父包上。
答案 2 :(得分：0)
为 ModuleServiceImpl 删除“ ModuleServiceImpl ” bean名称。由于您只有ModuleService接口的一种实现，因此限定在这里不需要。
@Service
public class ModuleServiceImpl implements ModuleService{
如果您仍然要使用bean名称，请尝试使用@Qualifier
@Autowired
public ModuleController(@Qualifier(ModuleServiceImpl) ModuleService moduleService, ResultGenerator generator)
{
this.moduleService = moduleService;
this.generator = generator;
}