为什么在我的 Spring 启动 Rest 数据应用程序中为 HTTP 路径映射了不明确的处理程序方法？

Question

到目前为止我没有做任何特别的事情，但是遇到了这个烦人的异常：

java.lang.IllegalStateException: Ambiguous handler methods mapped for HTTP path 'http://localhost:8080/directoryWatches': {public org.springframework.http.ResponseEntity org.springframework.data.rest.webmvc.RepositoryEntityController.headCollectionResource(org.springframework.data.rest.webmvc.RootResourceInformation,org.springframework.data.rest.webmvc.support.DefaultedPageable) throws org.springframework.web.HttpRequestMethodNotSupportedException, public org.springframework.hateoas.Resources org.springframework.data.rest.webmvc.RepositoryEntityController.getCollectionResource(org.springframework.data.rest.webmvc.RootResourceInformation,org.springframework.data.rest.webmvc.support.DefaultedPageable,org.springframework.data.domain.Sort,org.springframework.data.rest.webmvc.PersistentEntityResourceAssembler) throws org.springframework.data.rest.webmvc.ResourceNotFoundException,org.springframework.web.HttpRequestMethodNotSupportedException}

这是我的实体：

@Entity
public class DirectoryWatch {

@Id
@GeneratedValue
private long id;

@Column(unique = true)
private String name;
//setters, getters and default constructor...
}

还有我的 DirectoryWatchRepository：

@RepositoryRestResource
public interface DirectoryWatchRepository extends PagingAndSortingRepository<DirectoryWatch, Long> {
}

当我打开 HAL 浏览器并尝试打开 NON-GET HTTP 方法时出现异常：

我的 pom 文件片段：

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.0.M2</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

Dependencies:
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-actuator-docs</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-rest</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-rest-hal-browser</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-hateoas</artifactId>
    </dependency>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-mail</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-remote-shell</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.restdocs</groupId>
        <artifactId>spring-restdocs-mockmvc</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.scala-lang</groupId>
        <artifactId>scala-library</artifactId>
        <version>2.11.0</version>
    </dependency>
</dependencies>

有没有人有帮助的想法？

谢谢，克里斯蒂安

Answer 1

这可疑地看起来像我报告的 here Spring Framework 4.3 RC1 中的回归。该问题已经修复，即将推出的 Spring Boot 1.4 M3 将包含修复版本。

发行版 Boot 应该会在几天内发布。在此之前，您可以手动升级到 Spring Framework 4.3 RC2。

为什么在我的 Spring 启动 Rest 数据应用程序中为 HTTP 路径映射了不明确的处理程序方法？

Why do I have ambiguous handler methods mapped for HTTP path in my Spring Boot Rest Data Application?

java

spring

spring-data-jpa

spring-boot

spring-rest