英文:
Implementation of JAXB-API has not been found(when running java jar)
问题
我在这行代码中遇到错误 (JAXBContext.newInstance)：
@Override
public void doWithMessage(WebServiceMessage message) throws IOException, TransformerException {
SoapHeader soapHeader = ((SoapMessage)message).getSoapHeader();
try {
JAXBContext context = JAXBContext.newInstance(AuthHeader.class);
Marshaller marshaller = context.createMarshaller();
marshaller.marshal(authentication, soapHeader.getResult());
} catch (JAXBException e) {
System.out.println(e.getMessage());
throw new IOException("在编组认证信息时出错。");
}
}
虽然通过以下方式作为测试用例执行时运行正常：
mvn install
或者
mvn spring-boot:run
但是在使用以下命令运行 JAR 文件时会出问题：
java -jar target/fileName-0.0.1-SNAPSHOT.jar
在运行 java -jar 并通过 Postman 发送请求时出错。
在模块路径或类路径上未找到 JAXB-API 的实现。
java.io.IOException: 在编组认证信息时出错。
版本信息：
mvn -version
Apache Maven 3.6.0
Maven home: /usr/share/maven
Java version: 11.0.7, vendor: Ubuntu, runtime: /usr/lib/jvm/java-11-openjdk-amd64
Default locale: en, platform encoding: UTF-8
OS name: "linux", version: "4.15.0-1051-aws", arch: "amd64", family: "unix"
java -version
openjdk version "11.0.7" 2020-04-14
OpenJDK Runtime Environment (build 11.0.7+10-post-Ubuntu-2ubuntu218.04)
OpenJDK 64-Bit Server VM (build 11.0.7+10-post-Ubuntu-2ubuntu218.04, mixed mode, sharing)
同样的 JAR 文件在开发服务器上运行良好，但在演示服务器上无法运行。开发和演示服务器具有相同的环境（Java 版本、Maven 等均相同）。我已将以下依赖项添加到 pom.xml 文件中：
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.3.3</version>
</dependency>
如果问题与 fat JAR 有关，那么为什么其他依赖项（如 Amazon S3、Stripe 等）在普通 JAR 中能正常工作？只有 JAXB 存在什么问题？
我甚至尝试使用以下配置创建 fat JAR：
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
<configuration>
<mainClass>com.patracorp.patrapay.PatrapayApplication</mainClass>
<layout>ZIP</layout>
</configuration>
</execution>
</executions>
</plugin>
但仍然遇到相同的错误。
<details>
<summary>英文:</summary>
I am getting error in the line (JAXBContext.newInstance):
@Override
public void doWithMessage(WebServiceMessage message) throws IOException, TransformerException {
SoapHeader soapHeader = ((SoapMessage)message).getSoapHeader();
try {
JAXBContext context = JAXBContext.newInstance(AuthHeader.class);
Marshaller marshaller = context.createMarshaller();
marshaller.marshal(authentication, soapHeader.getResult());
} catch (JAXBException e) {
System.out.println(e.getMessage());
throw new IOException("error while marshalling authentication.");
}
}
While it runs fine when this is executed as test case using:
mvn install
or
mvn:spring:boot run
But causes issue when the jar is run using:
java -jar target/fileName-0.0.1-SNAPSHOT.jar
Error when running java -jar and hit using postman.
Implementation of JAXB-API has not been found on module path or classpath.
java.io.IOException: error while marshalling authentication.
Version info
mvn -version
Apache Maven 3.6.0
Maven home: /usr/share/maven
Java version: 11.0.7, vendor: Ubuntu, runtime: /usr/lib/jvm/java-11-openjdk-amd64
Default locale: en, platform encoding: UTF-8
OS name: "linux", version: "4.15.0-1051-aws", arch: "amd64", family: "unix"
java -version
openjdk version "11.0.7" 2020-04-14
OpenJDK Runtime Environment (build 11.0.7+10-post-Ubuntu-2ubuntu218.04)
OpenJDK 64-Bit Server VM (build 11.0.7+10-post-Ubuntu-2ubuntu218.04, mixed mode, sharing)
Same jar runs fine on development server but doesn't run on staging server. Both development and staging server have same environment (java version, mvn, everything is same). I have these dependencies added to pom.xml:
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.3.3</version>
</dependency>
If it's related to fat jar then why other dependencies like amazon s3, stripe etc. works with normal jar. What's the issue with jaxb only ?
I even tried to create fat jar using mvn package with the following config:
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
<configuration>
<mainClass>com.patracorp.patrapay.PatrapayApplication</mainClass>
<layout>ZIP</layout>
</configuration>
</execution>
</executions>
</plugin>
but still getting the same error.
</details>
# 答案1
**得分**: 12
1) 请仔细检查您的依赖项，确保没有重复的依赖项，因为 JAXB 的相关构件已经多次更名。
运行 'mvn dependency:tree' 不应该多次输出与 JAXB 相关的构件。
2) 请尝试使用以下构件：
```xml
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
<version>2.3.2</version>
</dependency>
英文:
- Double check that you don't have duplicated dependencies, because JAXB artifacts had been renamed multiple times.
Running 'mvn dependency:tree' should not output JAXB related artifacts more than once.
-
Try to use this artifact:
<dependency> <groupId>org.glassfish.jaxb</groupId> <artifactId>jaxb-runtime</artifactId> <version>2.3.2</version> </dependency>
答案2
得分: 3
在Java 9及更高版本中，Java已从默认类路径中移除了java.xml.bind。因此，您必须显式地将JAR文件添加到类路径中。
仅添加jaxb-impl可能是不够的，我猜想。
您可以在您的POM中添加以下依赖，然后尝试一下。
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>${jaxb-api.version}</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>${jaxb-api.version}</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-core</artifactId>
<version>${jaxb-api.version}</version>
</dependency>
请分享结果。
英文:
In Java 9 and higher versions, Java has removed java.xml.bind from its default class path. So, you have to explicitly add JAR files to the classpath.
And adding only jaxb-impl won't suffice, I guess.
Can you add below dependency in your POM and then try it out.
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>${jaxb-api.version}</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>${jaxb-api.version}</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-core</artifactId>
<version>${jaxb-api.version}</version>
</dependency>
Please share the results.
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