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RESTEasy客户端 . 找不到内容类型application / xml的编写器

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我正在尝试使用RESTeasy连接到Web服务 .

我使用的代码是这样的:

WebTarget resource = client.target(URL_DISPLAY);
Builder request = resource.request(MediaType.APPLICATION_XML);

long startTime = System.currentTimeMillis();
ClientResponse response = (ClientResponse)request.post(Entity.xml(text));

我在Eclipse中运行它时,程序正在运行 .

当我生成一个可运行的jar,甚至从控制台运行java时它不起作用 . 堆栈跟踪如下:

javax.ws.rs.ProcessingException: Unable to invoke request
    at org.jboss.resteasy.client.jaxrs.engines.ApacheHttpClient4Engine.invoke(ApacheHttpClient4Engine.java:287)
    at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.invoke(ClientInvocation.java:407)
    at org.jboss.resteasy.client.jaxrs.internal.ClientInvocationBuilder.post(ClientInvocationBuilder.java:195)
    at webservices.WebServicesTest.requestDisplay(WebServicesTest.java:144)
    at webservices.WebServicesTest.main(WebServicesTest.java:328)
Caused by: javax.ws.rs.ProcessingException: could not find writer for content-type application/xml type: webservices.DisplayText
    at org.jboss.resteasy.core.interception.ClientWriterInterceptorContext.throwWriterNotFoundException(ClientWriterInterceptorContext.java:40)
    at org.jboss.resteasy.core.interception.AbstractWriterInterceptorContext.getWriter(AbstractWriterInterceptorContext.java:138)
    at org.jboss.resteasy.core.interception.AbstractWriterInterceptorContext.proceed(AbstractWriterInterceptorContext.java:117)
    at org.jboss.resteasy.plugins.interceptors.encoding.GZIPEncodingInterceptor.aroundWriteTo(GZIPEncodingInterceptor.java:100)
    at org.jboss.resteasy.core.interception.AbstractWriterInterceptorContext.proceed(AbstractWriterInterceptorContext.java:122)
    at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.writeRequestBody(ClientInvocation.java:341)
    at org.jboss.resteasy.client.jaxrs.engines.ApacheHttpClient4Engine.writeRequestBodyToOutputStream(ApacheHttpClient4Engine.java:558)
    at org.jboss.resteasy.client.jaxrs.engines.ApacheHttpClient4Engine.buildEntity(ApacheHttpClient4Engine.java:524)
    at org.jboss.resteasy.client.jaxrs.engines.ApacheHttpClient4Engine.loadHttpMethod(ApacheHttpClient4Engine.java:423)
    at org.jboss.resteasy.client.jaxrs.engines.ApacheHttpClient4Engine.invoke(ApacheHttpClient4Engine.java:281)
    ... 4 more

DisplayText类定义如下:

@XmlRootElement
public class DisplayText implements Serializable

我在我的pom中添加了以下包:

  • resteasy-client

  • resteasy-jaxrs

  • resteasy-jaxb-provider(版本3.0.8.Final)

  • com.sun.xml.bind

所有这些都在运行时范围内 .

我觉得奇怪的是它在日食下工作 . 它可能是一些Jaxb配置?或上下文设置 . 我也试过了

RegisterBuiltin.register(ResteasyProviderFactory.getInstance());

它不起作用 .

1 回答

  • 1

    我用maven阴影来构建它解决了这个问题 .

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>2.3</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <transformers>
                                <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>com.google.MainClass</mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
    

    这里最重要的一行是:

    <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
    

    shade插件配置需要the service transformer,它合并the service discovery mechanism使用的META-INF / services文件 .

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