Question

我正在使用JAX-RS在java中实现一个restful服务，并且在测试服务时它只适用于我的一个方法，当我添加一个带有不同@PATH注释的新方法时，测试网页只是空白而没有错误

我的资源类

@Path（＆＃34;啤酒＆＃34）公共类BeerResources {

tours_users_id

}

应用程序配置类

@ javax.ws.rs.ApplicationPath（＆＃34; / webresources＆＃34）公共类ApplicationConfig扩展了Application {

@Context
private UriInfo context;

/**
 * Creates a new instance of BeerResources
 */
public BeerResources() {
}

@GET
@Path("/costliest")
@Produces(MediaType.TEXT_PLAIN)
public String getCostliest() {
    //TODO return proper representation object
    return new BusinessLayer().getCostliest();
}

@GET
@Path("/cheapest")
@Produces(MediaType.APPLICATION_XML)
public String getCheapest() {
    //TODO return proper representation object
    return new BusinessLayer().getCheapest();
}

}

Answer 1

您可以尝试使用Spring Boot + JAX-RS方法或Spring Boot + Spring MVC。以下是我Github page上的两个。

还有Spring Boot + JAX-RS源代码：

Application.java：

@SpringBootApplication
public class Application extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(Application.class);
    }

    public static void main(String[] args) {
        SpringApplicationBuilder builder = new SpringApplicationBuilder(Application.class);
        new Application().configure(builder).run(args);
    }
}

DrinkEndpoint.java：

@Component
@Path("/drinks")
public class DrinkEndpoint {

    @Autowired
    private DrinkService drinkService;

    @GET
    @Path("/list")
    @Produces(MediaType.APPLICATION_JSON)
    public Iterable<Drink> getCostliest() {
        return drinkService.getDrinks();
    }

    @GET
    @Path("/{drink}")
    @Produces(MediaType.APPLICATION_JSON)
    public Response getCheapest(@PathParam("drink") String name) {
        Optional<Drink> drink = drinkService.getDrink(name);

        if (drink.isPresent()) {
            return Response.status(201).entity(drink.get().getName()).build();
        } else {
            return Response.status(201).entity("NOT_FOUND").build();
        }
    }
}

DrinkService.java：

public interface DrinkService {
    Iterable<Drink> getDrinks();
    Optional<Drink> getDrink(String name);
}

DrinkServiceImpl.java：

@Component
public class DrinkServiceImpl implements DrinkService {

    private List<Drink> drinks = new ArrayList<Drink>() {{
        add(new Drink("Coca Cola", 1886));
        add(new Drink("Pepsi", 1903));
    }};

    public Iterable<Drink> getDrinks() {
        return drinks;
    }

    public Optional<Drink> getDrink(String name) {
        for (Drink drink : drinks) {
            if (drink.getName().equalsIgnoreCase(name)) {
                return Optional.of(drink);
            }
        }
        return Optional.empty();
    }
}

ApplicationConfig.java：

@Component
public class ApplicationConfig extends ResourceConfig {

    public ApplicationConfig() {
        register(DrinkEndpoint.class);
    }
}

Drink.java：

public class Drink {
    private String name;
    private int since;

    public Drink(String name, int since) {
        this.name = name;
        this.since = since;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getSince() {
        return since;
    }

    public void setSince(int since) {
        this.since = since;
    }
}

的pom.xml：

<project>
    ....
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>1.3.0.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

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

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

开始运行应用程序：

mvn spring-boot:run

然后在浏览器中打开：

http://localhost:8080/drinks/list

http://localhost:8080/drinks/pepsi

Answer 2

确保您返回正确的XML格式

示例：

@Produces(MediaType.APPLICATION_XML)
public String getCheapest() {
    return "<abc>xyz</abc>";
}

如果BusinessLayer().getCheapest()函数返回字符串，并且您使用了代码@Produces(MediaType.APPLICATION_XML)，则只会显示一个空白页。

根据BusinessLayer().getCheapest()函数
返回的值，在 @Produces 标记中使用适当的 MediaType

JAX-RS测试Web服务在向新方法添加新的@PATH批注后显示空白网页

2 个答案: