Question

我正在使用Spring引导中的Rest公开我的服务。我首先通过使用cxf jaxrs依赖关系以及其他的spring rest依赖关系来以两种不同的方法来公开我的服务。在第一种方法中，我在邮递员中运行服务时遇到404错误。但是在第二种方法中，我得到了我的输出。请帮帮我。

使用cxf jaxrs的第一种方法

@Path("/locations")
public interface LocationRestController {

@GET
public List<Location> getLocations();
}
******************************************
@RestController
public class LocationRestControllerImpl implements LocationRestController {

@Autowired
LocationRepos repos;

@Override

public List<Location> getLocations() {

    return repos.findAll();
}}
{
"timestamp": "2018-09-17T03:36:05.283+0000",
"status": 404,
"error": "Not Found",
"message": "No message available",
"path": "/locationweb/locations"
}

使用spring内置依赖项的第二种方法

@RestController
@RequestMapping("/locations")
public class LocationRestControllerImpl  {

@Autowired
LocationRepos repos;

@GetMapping
public List<Location> getLocations() {

    return repos.findAll();
}}

Pom文件

<?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.project.abhishek</groupId>
<artifactId>student</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>student</name>
<description>Student DAL</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
"pom.xml"   <version>2.1.0.M2</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

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

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

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.apache.tomcat.embed</groupId>
        <artifactId>tomcat-embed-jasper</artifactId>
        <version>9.0.12</version>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-mail</artifactId>
        <version>2.0.4.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>jfree</groupId>
        <artifactId>jfreechart</artifactId>
        <version>1.0.13</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-spring-boot-starter-jaxrs</artifactId>
        <version>3.2.6</version>
    </dependency>

</dependencies>

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

<repositories>
    <repository>
        <id>spring-snapshots</id>
        <name>Spring Snapshots</name>
        <url>https://repo.spring.io/snapshot</url>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </repository>
    <repository>
        <id>spring-milestones</id>
        <name>Spring Milestones</name>
        <url>https://repo.spring.io/milestone</url>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </repository>
</repositories>

<pluginRepositories>
    <pluginRepository>
        <id>spring-snapshots</id>
        <name>Spring Snapshots</name>
        <url>https://repo.spring.io/snapshot</url>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </pluginRepository>
    <pluginRepository>
        <id>spring-milestones</id>
        <name>Spring Milestones</name>
        <url>https://repo.spring.io/milestone</url>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </pluginRepository>
</pluginRepositories>

Answer 1

请参考以下代码以正确实施

public interface LocationRestController {

public List<Location> getLocations();
}
******************************************
@RestController(value="/locationweb/locations")
public class LocationRestControllerImpl implements LocationRestController {

@Autowired
LocationRepos repos;

@Override
@GetMapping
public List<Location> getLocations() {

    return repos.findAll();
}}
{

Answer 2

此行可能是问题

$this->app->extend(Mailer::class, function ($mailer) {
    return new MailerDecorator($mailer);
});

以第一种方法从班级中删除@RestController public class LocationRestControllerImpl implements LocationRestController {

Answer 3

尝试以下示例， https://dzone.com/articles/spring-boot-building-restful-web-services-with-jersey

很可能您缺少Spring / Jersey集成或Jersey配置。

添加用于春季启动的Jersey配置以了解Jersey。

为方便起见，下面是“ Jersey Configuration”的代码。

@Configuration
@ApplicationPath("rest")
public class Config extends ResourceConfig {

public Config() {       
}

@PostConstruct
public void setUp() {
    register(Controller.class);
}
}

Answer 4

请确保您拥有CXF configuration并将其设置为服务Bean，就像您使用@RestController一样，实际上并没有实现CXF，因此要通过CXF处理请求，您需要配置CXF服务器。

    @Configuration
    public class CXFConfig {

      @Autowired
      private Bus bus;


      @Bean
      public Server rsServer() {
         final JAXRSServerFactoryBean endpoint = new JAXRSServerFactoryBean();
         endpoint.setBus(bus);
         endpoint.setAddress("/");
         endpoint.setServiceBeans(Arrays.asList(LocationRestController ()));
         return endpoint.create();
      }

    @Bean
    public LocationRestController locationController() {
       return new LocationRestControllerImpl();
       }

    }

注意：无需实现控制器，您可以直接拥有控制器。

Spring Boot Rest Api控制器出现404错误

4 个答案: