Java 17+Apache CXF 3.5.0构建SOAP客户端遇Marshalling Error求助

针对你遇到的https.www_w3schools_com.xml.CelsiusToFahrenheit is not known to this context错误，以下是具体修复步骤：

1. 确保JAXB上下文正确包含生成的类 #

CXF的SOAP客户端依赖JAXB完成对象与XML的转换，若请求类未被注册到JAXB上下文就会触发该错误：

• 显式指定JAXB上下文的包路径：

  TempConvert service = new TempConvert();
  // 初始化JAXB绑定，指定生成类所在的包
  JAXBDataBinding binding = new JAXBDataBinding("https.www_w3schools_com.xml");
  service.setDataBinding(binding);
  
  TempConvertSoap port = service.getTempConvertSoap();
  // 调用服务方法
  String result = port.celsiusToFahrenheit("25");
  

• 检查生成代码中是否存在ObjectFactory.java和package-info.java，这两个类是JAXB识别类的核心，若缺失需重新生成代码。

2. 适配Java 17的Maven依赖配置 #

Java 9+移除了JDK自带的JAXB模块，需手动添加相关依赖，同时确保CXF 3.5.0与Java 17兼容：

<dependencies>
    <!-- CXF核心SOAP依赖 -->
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-frontend-jaxws</artifactId>
        <version>3.5.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-transports-http</artifactId>
        <version>3.5.0</version>
    </dependency>
    <!-- JAXB依赖，适配Java 17 -->
    <dependency>
        <groupId>javax.xml.bind</groupId>
        <artifactId>jaxb-api</artifactId>
        <version>2.3.1</version>
    </dependency>
    <dependency>
        <groupId>com.sun.xml.bind</groupId>
        <artifactId>jaxb-core</artifactId>
        <version>2.3.7</version>
    </dependency>
    <dependency>
        <groupId>com.sun.xml.bind</groupId>
        <artifactId>jaxb-impl</artifactId>
        <version>2.3.7</version>
        <scope>runtime</scope>
    </dependency>
</dependencies>

3. 重新生成规范的客户端代码 #

默认生成的包名（https.www_w3schools_com.xml）容易出现上下文识别问题，建议通过Maven插件指定清晰的包名重新生成：

<build>
    <plugins>
        <!-- CXF代码生成插件 -->
        <plugin>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-codegen-plugin</artifactId>
            <version>3.5.0</version>
            <executions>
                <execution>
                    <id>generate-soap-client</id>
                    <phase>generate-sources</phase>
                    <configuration>
                        <wsdlOptions>
                            <wsdlOption>
                                <wsdl>https://www.w3schools.com/xml/tempconvert.asmx?WSDL</wsdl>
                                <!-- 指定自定义包名，避免默认的复杂路径 -->
                                <packageName>com.w3schools.tempconvert</packageName>
                            </wsdlOption>
                        </wsdlOptions>
                    </configuration>
                    <goals>
                        <goal>wsdl2java</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
        <!-- Java 17编译配置 -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.10.1</version>
            <configuration>
                <source>17</source>
                <target>17</target>
            </configuration>
        </plugin>
    </plugins>
</build>

执行mvn generate-sources生成代码后，使用新包下的类编写客户端，示例代码：

package com.w3schools.tempconvert;

public class TempConvertClient {
    public static void main(String[] args) {
        TempConvert service = new TempConvert();
        TempConvertSoap port = service.getTempConvertSoap();
        
        // 调用温度转换方法
        String fahrenheit = port.celsiusToFahrenheit("0");
        System.out.println("0℃ = " + fahrenheit + "℉");
    }
}

4. 模块化项目额外配置 #

如果你的项目是Java模块化项目（存在module-info.java），需添加模块依赖：

module your.module.name {
    requires org.apache.cxf.jaxws;
    requires javax.xml.bind;
    // 开放生成类的包给JAXB
    opens com.w3schools.tempconvert to com.sun.xml.bind;
}

内容的提问来源于stack exchange，提问作者Daniel Falcão