Java 17 中的 Unmarshaller 导致空响应

问题描述 投票：0回答：1

我需要将我的应用程序从 Java 8 升级到 Java 17。我们有一些使用 JaxbContext 的解组器

          JAXBContext jaxbContext = JAXBContext.newInstance(Order.class);
          Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
          
          // Unmarshal the XML file into an Order object
          Order order = (Order) jaxbUnmarshaller.unmarshal(file);

该方法在 Java 8 中工作正常，但在 Java 17 中，我将 order 中存在的成员设置为 null。我也没有得到任何例外。 注意：我尝试使用下面的依赖项，但它们没有帮助。我还有 EclipseLink 作为 Jpa 提供者。

 <dependency>
        <groupId>jakarta.xml.bind</groupId>
        <artifactId>jakarta.xml.bind-api</artifactId>
        <version>3.0.1</version>
    </dependency>
    
    <!-- JAXB Runtime -->
    <dependency>
        <groupId>org.glassfish.jaxb</groupId>
        <artifactId>jaxb-runtime</artifactId>
        <version>3.0.2</version>
    </dependency>
    
    <!-- Optional: If you are using Java 9 or above, you might need the following dependency -->
    <dependency>
        <groupId>javax.activation</groupId>
        <artifactId>javax.activation-api</artifactId>
        <version>1.2.0</version>
    </dependency>
java spring-boot jaxb eclipselink unmarshalling
1个回答
0
投票

https://start.spring.io/

  • 项目：Maven
  • 语言：Java
  • 春季启动：3.3.1
  • 包装：罐装
  • 爪哇：17

依赖项：单击 

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  • Spring Web 服务网络

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保存演示.zip

解压演示.zip

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.3.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>17</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jersey</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web-services</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

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

</project>

运行命令

mvn dependency:tree

结果：

com.example:demo:jar:0.0.1-SNAPSHOT
+- org.springframework.boot:spring-boot-starter-jersey:jar:3.3.1:compile
|  +- org.springframework.boot:spring-boot-starter-json:jar:3.3.1:compile
|  |  +- com.fasterxml.jackson.core:jackson-databind:jar:2.17.1:compile
|  |  |  \- com.fasterxml.jackson.core:jackson-core:jar:2.17.1:compile
|  |  +- com.fasterxml.jackson.datatype:jackson-datatype-jdk8:jar:2.17.1:compile
|  |  +- com.fasterxml.jackson.datatype:jackson-datatype-jsr310:jar:2.17.1:compile
|  |  \- com.fasterxml.jackson.module:jackson-module-parameter-names:jar:2.17.1:compile
|  +- org.springframework.boot:spring-boot-starter-tomcat:jar:3.3.1:compile
|  |  +- jakarta.annotation:jakarta.annotation-api:jar:2.1.1:compile
|  |  +- org.apache.tomcat.embed:tomcat-embed-core:jar:10.1.25:compile
|  |  +- org.apache.tomcat.embed:tomcat-embed-el:jar:10.1.25:compile
|  |  \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:10.1.25:compile
|  +- org.springframework.boot:spring-boot-starter-validation:jar:3.3.1:compile
|  |  \- org.hibernate.validator:hibernate-validator:jar:8.0.1.Final:compile
|  |     \- com.fasterxml:classmate:jar:1.7.0:compile
|  +- org.springframework:spring-web:jar:6.1.10:compile
|  |  +- org.springframework:spring-beans:jar:6.1.10:compile
|  |  \- io.micrometer:micrometer-observation:jar:1.13.1:compile
|  |     \- io.micrometer:micrometer-commons:jar:1.13.1:compile
|  +- org.glassfish.jersey.containers:jersey-container-servlet-core:jar:3.1.7:compile
|  |  +- jakarta.inject:jakarta.inject-api:jar:2.0.1:compile
|  |  +- org.glassfish.jersey.core:jersey-common:jar:3.1.7:compile
|  |  |  \- org.glassfish.hk2:osgi-resource-locator:jar:1.0.3:compile
|  |  \- jakarta.ws.rs:jakarta.ws.rs-api:jar:3.1.0:compile
|  +- org.glassfish.jersey.containers:jersey-container-servlet:jar:3.1.7:compile
|  +- org.glassfish.jersey.core:jersey-server:jar:3.1.7:compile
|  |  +- org.glassfish.jersey.core:jersey-client:jar:3.1.7:compile
|  |  \- jakarta.validation:jakarta.validation-api:jar:3.0.2:compile
|  +- org.glassfish.jersey.ext:jersey-bean-validation:jar:3.1.7:compile
|  |  +- org.jboss.logging:jboss-logging:jar:3.5.3.Final:compile
|  |  \- org.glassfish.expressly:expressly:jar:5.0.0:compile
|  +- org.glassfish.jersey.ext:jersey-spring6:jar:3.1.7:compile
|  |  +- org.glassfish.jersey.inject:jersey-hk2:jar:3.1.7:compile
|  |  |  +- org.glassfish.hk2:hk2-locator:jar:3.0.6:compile
|  |  |  |  \- org.glassfish.hk2.external:aopalliance-repackaged:jar:3.0.6:compile
|  |  |  \- org.javassist:javassist:jar:3.30.2-GA:compile
|  |  +- org.glassfish.hk2:hk2:jar:3.0.6:compile
|  |  |  +- org.glassfish.hk2:hk2-utils:jar:3.0.6:compile
|  |  |  +- org.glassfish.hk2:hk2-api:jar:3.0.6:compile
|  |  |  +- org.glassfish.hk2:hk2-core:jar:3.0.6:compile
|  |  |  +- org.glassfish.hk2:hk2-runlevel:jar:3.0.6:compile
|  |  |  \- org.glassfish.hk2:class-model:jar:3.0.6:compile
|  |  |     \- org.ow2.asm:asm-commons:jar:9.6:compile
|  |  \- org.glassfish.hk2:spring-bridge:jar:3.0.6:compile
|  \- org.glassfish.jersey.media:jersey-media-json-jackson:jar:3.1.7:compile
|     +- org.glassfish.jersey.ext:jersey-entity-filtering:jar:3.1.7:compile
|     +- com.fasterxml.jackson.core:jackson-annotations:jar:2.17.1:compile
|     \- com.fasterxml.jackson.module:jackson-module-jakarta-xmlbind-annotations:jar:2.17.1:compile
+- org.springframework.boot:spring-boot-starter-web:jar:3.3.1:compile
|  +- org.springframework.boot:spring-boot-starter:jar:3.3.1:compile
|  |  +- org.springframework.boot:spring-boot:jar:3.3.1:compile
|  |  +- org.springframework.boot:spring-boot-autoconfigure:jar:3.3.1:compile
|  |  +- org.springframework.boot:spring-boot-starter-logging:jar:3.3.1:compile
|  |  |  +- ch.qos.logback:logback-classic:jar:1.5.6:compile
|  |  |  |  \- ch.qos.logback:logback-core:jar:1.5.6:compile
|  |  |  +- org.apache.logging.log4j:log4j-to-slf4j:jar:2.23.1:compile
|  |  |  |  \- org.apache.logging.log4j:log4j-api:jar:2.23.1:compile
|  |  |  \- org.slf4j:jul-to-slf4j:jar:2.0.13:compile
|  |  \- org.yaml:snakeyaml:jar:2.2:compile
|  \- org.springframework:spring-webmvc:jar:6.1.10:compile
|     +- org.springframework:spring-aop:jar:6.1.10:compile
|     +- org.springframework:spring-context:jar:6.1.10:compile
|     \- org.springframework:spring-expression:jar:6.1.10:compile
+- org.springframework.boot:spring-boot-starter-web-services:jar:3.3.1:compile
|  +- com.sun.xml.messaging.saaj:saaj-impl:jar:3.0.4:compile
|  |  +- jakarta.xml.soap:jakarta.xml.soap-api:jar:3.0.2:compile
|  |  +- org.jvnet.staxex:stax-ex:jar:2.1.0:compile
|  |  +- jakarta.activation:jakarta.activation-api:jar:2.1.3:compile
|  |  \- org.eclipse.angus:angus-activation:jar:2.0.2:runtime
|  +- jakarta.xml.ws:jakarta.xml.ws-api:jar:4.0.2:compile
|  +- org.springframework:spring-oxm:jar:6.1.10:compile
|  \- org.springframework.ws:spring-ws-core:jar:4.0.11:compile
|     +- org.springframework.ws:spring-xml:jar:4.0.11:compile
|     \- org.glassfish.jaxb:jaxb-runtime:jar:4.0.5:runtime
|        \- org.glassfish.jaxb:jaxb-core:jar:4.0.5:runtime
|           +- org.glassfish.jaxb:txw2:jar:4.0.5:runtime
|           \- com.sun.istack:istack-commons-runtime:jar:4.1.2:runtime
\- org.springframework.boot:spring-boot-starter-test:jar:3.3.1:test
   +- org.springframework.boot:spring-boot-test:jar:3.3.1:test
   +- org.springframework.boot:spring-boot-test-autoconfigure:jar:3.3.1:test
   +- com.jayway.jsonpath:json-path:jar:2.9.0:test
   |  \- org.slf4j:slf4j-api:jar:2.0.13:compile
   +- jakarta.xml.bind:jakarta.xml.bind-api:jar:4.0.2:compile
   +- net.minidev:json-smart:jar:2.5.1:test
   |  \- net.minidev:accessors-smart:jar:2.5.1:test
   |     \- org.ow2.asm:asm:jar:9.6:test
   +- org.assertj:assertj-core:jar:3.25.3:test
   |  \- net.bytebuddy:byte-buddy:jar:1.14.17:test
   +- org.awaitility:awaitility:jar:4.2.1:test
   +- org.hamcrest:hamcrest:jar:2.2:test
   +- org.junit.jupiter:junit-jupiter:jar:5.10.2:test
   |  +- org.junit.jupiter:junit-jupiter-api:jar:5.10.2:test
   |  |  +- org.opentest4j:opentest4j:jar:1.3.0:test
   |  |  +- org.junit.platform:junit-platform-commons:jar:1.10.2:test
   |  |  \- org.apiguardian:apiguardian-api:jar:1.1.2:test
   |  +- org.junit.jupiter:junit-jupiter-params:jar:5.10.2:test
   |  \- org.junit.jupiter:junit-jupiter-engine:jar:5.10.2:test
   |     \- org.junit.platform:junit-platform-engine:jar:1.10.2:test
   +- org.mockito:mockito-core:jar:5.11.0:test
   |  +- net.bytebuddy:byte-buddy-agent:jar:1.14.17:test
   |  \- org.objenesis:objenesis:jar:3.3:test
   +- org.mockito:mockito-junit-jupiter:jar:5.11.0:test
   +- org.skyscreamer:jsonassert:jar:1.5.1:test
   |  \- com.vaadin.external.google:android-json:jar:0.0.20131108.vaadin1:test
   +- org.springframework:spring-core:jar:6.1.10:compile
   |  \- org.springframework:spring-jcl:jar:6.1.10:compile
   +- org.springframework:spring-test:jar:6.1.10:test
   \- org.xmlunit:xmlunit-core:jar:2.9.1:test

搜索关键字 - 1 : 

jaxb

|     \- org.glassfish.jaxb:jaxb-runtime:jar:4.0.5:runtime
|        \- org.glassfish.jaxb:jaxb-core:jar:4.0.5:runtime
|           +- org.glassfish.jaxb:txw2:jar:4.0.5:runtime

搜索关键字 - 2 : 

xml

   +- jakarta.xml.bind:jakarta.xml.bind-api:jar:4.0.2:compile

搜索关键字 - 3 : 

activation

|  |  +- jakarta.activation:jakarta.activation-api:jar:2.1.3:compile
|  |  \- org.eclipse.angus:angus-activation:jar:2.0.2:runtime

请注意，pom.xml 仅添加以下 Spring Boot 启动器：

  • spring-boot-starter-jersey

  • spring-boot-starter-web

  • spring-boot-starter-web-services

  • (1)在使用Spring Boot时，请善用Spring Boot Starter，并添加相应的starter。不需要一一设置依赖包和版本。

  • (2)当使用java 17时，对应的Spring Boot版本应为Spring Boo 3.x。不是 Spring Boot 2.x.

如果想手动一一添加依赖的jar和版本设置，可以参考上面

mvn dependency:tree
的执行结果一一添加需要的jar和版本。

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