Question

其实我正在尝试在cloud pub / sub中获取主题。当我发送请求URL以获取上述错误的主题时，我已经用宁静的Web服务编写了代码。经过一些查询后，它会像pub / sub 0.17版本和番石榴19.o版本的版本冲突一样，但我排除了guava 19版本并添加了18个版本，但同样的异常会一次又一次地出现。但是我尝试了所有番石榴版本，但没有使用相同的错误即将到来。请指导我如何解决以及它为什么会来。我要在这里附上我的代码.. 感谢..

我的代码：

 @Path("/topic")
  public class PubSubServices 
  {

    @Path("/gettopic")
    @GET
    @Produces({ MediaType.TEXT_HTML})
    public Response getTopic() throws Exception {
        String  projectid="My-ProjectID";
        String topicname="my-new-topic";


        System.out.println("Project name is:"+projectid+"  new topic name is:"+topicname);
        try 
        {

        TopicAdminClient topicAdminClient   topicAdminClient=TopicAdminClient.create();
             TopicName topicName = TopicName.create(projectid, topicname);
              Topic topic = topicAdminClient.getTopic(topicName);

        } catch(Exception e)
        {
            e.printStackTrace();
        }

        return Response.status(200).entity(topic.getName();).build();


    }

的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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>PubSub</groupId>
<artifactId>PubSub</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>

<dependencies>

    <dependency>
        <groupId>com.google.cloud</groupId>
        <artifactId>google-cloud-pubsub</artifactId>
        <version>0.17.2-alpha</version>
        <exclusions>
            <exclusion>
                <artifactId>com.google</artifactId>
                <groupId>guava</groupId>
            </exclusion>
            <exclusion>
                <groupId>com.google.guava</groupId>
                <artifactId>guava</artifactId>
            </exclusion>
        </exclusions>
    </dependency>


    <dependency>
        <groupId>com.google.guava</groupId>
        <artifactId>guava</artifactId> 
        <version>18.0</version> 
   </dependency> 

    <dependency>
        <groupId>com.google.api-client</groupId>
        <artifactId>google-api-client</artifactId>
        <version>1.22.0</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.core</groupId>
        <artifactId>jersey-server</artifactId>
        <version>2.17</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.containers</groupId>
        <artifactId>jersey-container-servlet-core</artifactId>
        <version>2.17</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.media</groupId>
        <artifactId>jersey-media-multipart</artifactId>
        <version>2.17</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.media</groupId>
        <artifactId>jersey-media-moxy</artifactId>
        <version>2.17</version>
    </dependency>
    <dependency>
        <groupId>com.thetransactioncompany</groupId>
        <artifactId>cors-filter</artifactId>
        <version>2.4</version>
    </dependency>
    <dependency>
        <groupId>javax</groupId>
        <artifactId>javaee-api</artifactId>
        <version>7.0</version>
    </dependency>

</dependencies>
<build>
    <finalName>CloudSubPub1</finalName>
    <plugins>

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.1</version>
            <configuration>
                <source>1.7</source>
                <target>1.7</target>
            </configuration>
        </plugin>
    </plugins>
</build>

我创建了war文件，我上传到玻璃鱼服务器。当我发送请求错误时...像Guava-18这样的接口在运行时被旧版本覆盖，而Guava-18仅在编译任务期间工作。

使用主要方法工作gud（使用main方法测试）

代码：

package com.agro.pubsub.services;
import com.google.cloud.pubsub.spi.v1.TopicAdminClient;
import com.google.pubsub.v1.Topic;
import com.google.pubsub.v1.TopicName;

public class Test {
public static void main(String args[]) throws Exception
{

     try (TopicAdminClient topicAdminClient = TopicAdminClient.create()) {
          TopicName topicName = TopicName.create("My-project-Id", "my-new-topic123");
          Topic topic = topicAdminClient.getTopic(topicName);
    System.out.println(""+topic.getName());
     }

}
}

的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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>PubSub</groupId>
<artifactId>PubSub</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>


  <dependencies>

          <dependency>
                <groupId>com.google.cloud</groupId>
                <artifactId>google-cloud-pubsub</artifactId>
                <version>0.17.2-alpha</version>
         </dependencies>
  </project>

问题是，当我使用带有jersey的restful web服务编写代码时，我遇到了上述错误，我无法找到解决方案。有什么解决方案吗？

Answer 1

我得到了解决方案。我将番石榴19版复制到玻璃鱼模块文件夹中所以这意味着我用我的番石榴版本重写番石榴

Answer 2

解决：我将Guava依赖关系更新为最新版本，它解决了问题

 <!-- https://mvnrepository.com/artifact/com.google.guava/guava -->
<dependency>
    <groupId>com.google.guava</groupId>
    <artifactId>guava</artifactId>
    <version>latest</version>
</dependency>

java.lang.NoSuchMethodError：com.google.common.util.concurrent.MoreExecutors.platformThreadFactory（）Ljava / util / concurrent / ThreadFactory;

2 个答案: