rest - 从现有的 CXF 休息服务生成 wadl

标签 rest tomcat7 cxf wadl cxfrs

我尝试 create a wadl from an existing CXF rest service .这是行不通的。我得到的是 HTTP 404。其余服务本身确实有效。我使用 Tomcat 7。

我究竟做错了什么？

Server Information
Tomcat Version  JVM Version     JVM Vendor  OS Name     OS Version  OS Architecture     Hostname    IP Address
Apache Tomcat/7.0.52 (Ubuntu)   1.7.0_72-b14    Oracle Corporation  Linux   3.13.0-43-generic   amd64   myself  127.0.1.1

/WEB-INF/web.xml 
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring-cxf-rest-example.xml</param-value>
    </context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <servlet>
        <servlet-name>CXFServlet</servlet-name>
        <servlet-class>
            org.apache.cxf.transport.servlet.CXFServlet
        </servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>CXFServlet</servlet-name>
        <url-pattern>/services/*</url-pattern>
    </servlet-mapping>

</web-app>

/WEB-INF/spring-cxf-rest-example.xml 
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:jaxrs="http://cxf.apache.org/jaxrs"
       xmlns:cxf="http://cxf.apache.org/core"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="
                        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
                        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
                        http://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd
                        http://cxf.apache.org/core http://cxf.apache.org/schemas/core.xsd">

    <context:component-scan base-package="com.myself" />

    <jaxrs:server id="exampleCxfServer" address="/">
        <jaxrs:serviceBeans>
            <ref bean="exampleService"/>
        </jaxrs:serviceBeans>
        <jaxrs:extensionMappings>
            <entry key="json" value="application/json"/>
        </jaxrs:extensionMappings>
        <jaxrs:features>
            <cxf:logging/>
        </jaxrs:features>
        <jaxrs:providers>
            <bean class="com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider" />
        </jaxrs:providers>
    </jaxrs:server>

</beans>

pom.xml 
<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.myself</groupId>
  <artifactId>cxf3example</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>cxf3example Maven Webapp</name>
  <url>http://maven.apache.org</url>

    <properties>
        <spring.version>4.0.0.RELEASE</spring.version>
        <cxf.version>3.0.0</cxf.version>
        <jackson.version>2.0.1</jackson.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-frontend-jaxrs</artifactId>
            <version>${cxf.version}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.jaxrs</groupId>
            <artifactId>jackson-jaxrs-json-provider</artifactId>
            <version>${jackson.version}</version>
        </dependency>
    </dependencies>

    <build>
        <sourceDirectory>src</sourceDirectory>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <!--
                    <source>1.8</source>
                    <target>1.8</target>
                    -->
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.4</version>
                <configuration>
                    <warSourceDirectory>WebContent</warSourceDirectory>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>
        </plugins>

        <finalName>cxf3example</finalName>
    </build>  

</project>

ExampleService.java 
package com.myself.service;

import com.myself.model.ExampleModel;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;

@Path("/example")
@Produces("application/json")
public interface ExampleService {

    @GET
    @Path("/{id}")
    public ExampleModel get(@PathParam("id") String id);

}

ExampleServiceImpl.java 
package com.myself.service;

import com.myself.model.ExampleModel;
import org.springframework.stereotype.Service;

@Service("exampleService")
public class ExampleServiceImpl implements ExampleService {

    @Override
    public ExampleModel get(String modelId) {
        return new ExampleModel("example", 1001);
    }
}

ExampleModel.java 
package com.myself.model;

public class ExampleModel {
    private String string;
    private int anInt;

    public ExampleModel() {}

    public ExampleModel(String string, int anInt) {
        this.string = string;
        this.anInt = anInt;
    }

    public String getString() {
        return string;
    }

    public void setString(String string) {
        this.string = string;
    }

    public int getAnInt() {
        return anInt;
    }

    public void setAnInt(int anInt) {
        this.anInt = anInt;
    }

    @Override
    public String toString() {
        return "ExampleModel{" +
                "string='" + string + '\'' +
                ", anInt=" + anInt +
                '}';
    }
}

此请求有效:

http://localhost:8080/cxf3example/services/example/1

catalina.out:
Feb 04, 2015 5:43:27 PM org.apache.cxf.interceptor.LoggingInInterceptor
INFO: Inbound Message
----------------------------
ID: 1
Address: http://localhost:8080/cxf3example/services/example/1
Http-Method: GET
Content-Type: 
Headers: {Accept=[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8], accept-encoding=[gzip, deflate], accept-language=[en-US,en;q=0.5], connection=[keep-alive], Content-Type=[null], host=[localhost:8080], user-agent=[Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:34.0) Gecko/20100101 Firefox/34.0]}
--------------------------------------
Feb 04, 2015 5:43:27 PM org.apache.cxf.interceptor.LoggingOutInterceptor
INFO: Outbound Message
---------------------------
ID: 1
Response-Code: 200
Content-Type: application/json
Headers: {Content-Type=[application/json], Date=[Wed, 04 Feb 2015 22:43:27 GMT]}
Payload: {"string":"example","anInt":1001}
--------------------------------------

此请求不起作用:

http://localhost:8080/cxf3example/services/exampleService/?_wadl

catalina.out:
Feb 04, 2015 5:45:51 PM org.apache.cxf.interceptor.LoggingInInterceptor
INFO: Inbound Message
----------------------------
ID: 2
Address: http://localhost:8080/cxf3example/services/exampleService/?_wadl
Http-Method: GET
Content-Type: 
Headers: {Accept=[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8], accept-encoding=[gzip, deflate], accept-language=[en-US,en;q=0.5], connection=[keep-alive], Content-Type=[null], host=[localhost:8080], user-agent=[Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:34.0) Gecko/20100101 Firefox/34.0]}
--------------------------------------
Feb 04, 2015 5:45:51 PM org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor processRequest
WARNING: No root resource matching request path /cxf3example/services/exampleService/ has been found, Relative Path: /exampleService/. Please enable FINE/TRACE log level for more details.
Feb 04, 2015 5:45:51 PM org.apache.cxf.jaxrs.impl.WebApplicationExceptionMapper toResponse
WARNING: javax.ws.rs.NotFoundException: HTTP 404 Not Found
    at org.apache.cxf.jaxrs.utils.SpecExceptions.toNotFoundException(SpecExceptions.java:89)
    at org.apache.cxf.jaxrs.utils.ExceptionUtils.toNotFoundException(ExceptionUtils.java:117)
    at org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.processRequest(JAXRSInInterceptor.java:167)
    at org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.handleMessage(JAXRSInInterceptor.java:76)
    at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307)
    at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
    at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:243)
    at org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:223)
    at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:197)
    at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:149)
    at org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:171)
    at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:286)
    at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doGet(AbstractHTTPServlet.java:211)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
    at org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:262)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

Feb 04, 2015 5:45:51 PM org.apache.cxf.interceptor.LoggingOutInterceptor
INFO: Outbound Message
---------------------------
ID: 2
Response-Code: 404
Content-Type: 
Headers: {Date=[Wed, 04 Feb 2015 22:45:51 GMT], Content-Length=[0]}
--------------------------------------

最佳答案

我had to add到依赖项:

<dependency>
  <groupId>org.apache.cxf</groupId>
  <artifactId>cxf-rt-rs-service-description</artifactId>
  <version>${cxf.version}</version>
</dependency>

可悲的是，它失败了，但没有给我一个异常，即类路径上缺少某些东西。

另外，正如 David J. Liszewski 所建议的那样正确的网址是:
http://localhost:8080/cxf3example/services/example?_wadl

关于rest - 从现有的 CXF 休息服务生成 wadl，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/28333409/

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