java - Spring 启动/MongoDB : expecting to have different URL for GET and DELETE

Question

两天前开始学习spring boot，看了很多文章，可惜并没有达到预期的效果(我是Ruby on Rails开发者，学Java对我来说有点困难;))

我想创建一个“简单”的 REST 应用程序，以便创建、获取和删除 Tag 类，并且我使用 mongoDB。

我的理解是我必须创建一个包含以下内容的 TagRepository 文件:

package com.petstore.repositories;

import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.data.rest.core.annotation.RepositoryRestResource;
import org.springframework.web.bind.annotation.RequestMapping;

import com.petstore.models.Tag;

@RepositoryRestResource(collectionResourceRel = "tags", path="tags")
public interface TagRepository extends MongoRepository<Tag, String> {

}

我希望能够管理以下 URL:

GET: http://localhost:8080/tags
GET: http://localhost:8080/tag/:id
DELETE: http://localhost:8080/tag/:id

不幸的是我只能使用

GET: http://localhost:8080/tags
GET: http://localhost:8080/tags/:id
DELETE: http://localhost:8080/tags/:id

如果我尝试删除 URL (/tag/:id)，我会收到此错误消息 不支持请求方法“DELETE”

但如果我使用删除 URL (/tags/:id)，它就可以正常工作。

你知道我做错了什么吗？

谢谢

Answer 1

我正在分享我的示例代码，该代码通过重命名为标签来工作

我的主课

package com.example;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.data.web.config.EnableSpringDataWebSupport;

@SpringBootApplication
@EnableSpringDataWebSupport
public class SpringBootDemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringBootDemoApplication.class, args);
    }
}

我的模型类

package com.example;

import org.springframework.data.annotation.Id;

public class Tag
{
    @Id
    String id;
    String tag;

    public String getId()
    {
        return id;
    }
    public void setId(String id)
    {
        this.id = id;
    }
    public String getTag()
    {
        return tag;
    }
    public void setTag(String tag)
    {
        this.tag = tag;
    }
}

最后是我们的存储库类

package com.example;

import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.data.rest.core.annotation.RepositoryRestResource;
import org.springframework.data.rest.core.annotation.RestResource;

@RepositoryRestResource(collectionResourceRel = "tags", path="tag")
public interface TagRepository extends MongoRepository<Tag, String>
{
    @RestResource(path = "tags")
    Page<Tag> findAll(Pageable pageable);

    void delete(String tag);
}

使用上面的示例代码，您可以启动 Spring Boot 代码，当您点击 http://localhost:8080/tag 时您可以看到所有标签，同样您可以通过点击 url http://localhost:8080/tag/:id 来检索单个标签。并按 http://localhost:8080/tag/:id 删除

下面是我的 pom，我用它来演示上面的代码

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.example</groupId>
    <artifactId>MongoDB</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>

    <name>SpringBootDemo</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.3.4.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-mongodb</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-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>

通过这段代码我们可以获得您想要的url路径