Springboot-发现不明确的映射-虽然控制器是用不同的路径定义的
有 2 个控制器,每个都扩展了一个未定义为控制器的接口。现在,我为每个路径定义了不同的路径,但仍然得到模糊映射发现错误。
控制器1
@RestController("/admin")
public final class AdminController implements BaseUserController {
@PostMapping
@ResponseStatus(HttpStatus.CREATED)
public User create(@RequestBody final User user) throws Exception {
return null;
}
}
控制器2
@RestController("/user")
public final class ConsumerController implements BaseUserController {
@PostMapping
@ResponseStatus(HttpStatus.CREATED)
public User create(@RequestBody final User user) throws Exception {
return null;
}
}
这是我得到的错误
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'requestMappingHandlerMapping' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Invocation of init method failed; nested exception is java.lang.IllegalStateException: Ambiguous mapping. Cannot map '/user' method
usermanager.controller.ConsumerController#create(User)
to {POST []}: There is already '/admin' bean method
usermanager.controller.AdminController#create(User) mapped.
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1786)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:602)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:944)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:769)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:326)
at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:123)
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99)
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124)
... 92 more
Caused by: java.lang.IllegalStateException: Ambiguous mapping. Cannot map '/user' method
usermanager.controller.ConsumerController#create(User)
to {POST []}: There is already '/admin' bean method
usermanager.controller.AdminController#create(User) mapped.
我不确定为什么这两种方法映射到相同的路径,而我已经定义了控制器的路径。我错过了什么?
回答
您正在使用@RestController注释的value字段作为不正确的 url 映射。
@RestController("/admin")
和
@RestController("/user")
正在创建两个具有组件/bean 名称的控制器 bean/admin和/user. 这意味着create来自两个类的方法都试图映射到相同的根 url /。如果您希望控制器类中的所有方法都映射到特定的 url,那么您需要将@RequestMapping注释与@RestController. 改成下面的;
@RestController
@RequestMapping("/admin")
和
@RestController
@RequestMapping("/user")