Jaxb无法将xml传输到对象

Question

我是jaxb的新手，我有这样的xml：

<testSuite name="suite1">
    <testCase name = "testCase1">
                <step name = "user">
                    <driverlicence>true</driverlicence>
                    <driversMinAge>18</driversMinAge>
                    <driversMinExperience>2</driversMinExperience>
                    <city_regestration>Boston</city_regestration>
                </step>
                <step name = "car">
                    <model>Ford</model>
                    <make>Focus</make>
                    <engineHorsepower>/resources/metadata/car_meta</engineHorsepower>
                    <modification>/resources/metadata/car_meta</modification>
                </step>
        <step name = "fullquota">
                    <driversListType>multidrive</driversListType>
                </step>
    </testCase>
   <testCase name = "testCase2">
                <step name = "user">
                    <driverlicence>false</driverlicence>
                    <driversMinAge>21</driversMinAge>
                    <driversMinExperience>11</driversMinExperience>
                    <city_regestration>LA</city_regestration>
                </step>
                <step name = "car">
                    <model>Audi</model>
                    <make>A6</make>
                    <engineHorsepower>user_meta</engineHorsepower>
                    <modification>user_meta</modification>
                </step>
        <step name = "fullquota">
                    <driversListType>nonemultidrive</driversListType>
                </step>
    </testCase>
</testSuite>

此外，我还有一个类，我想要映射到上面的xml：

@XmlRootElement(name="testSuite")
public class TestSuite {


    private TestCase testcase;


    public class TestCase {


        private Step step;


        public  class Step {

            Map<String, String> metaData = new HashMap<String, String>();


        } //End of StepClass

        @XmlAnyElement
        public void setStep(Step step) { this.step = step; }


    } //End of TestCase class

    @XmlElement(name="testCase")
    public void setTestcase(TestCase testcase) { this.testcase = testcase; }


}

这个类有一些内部类，内部嵌套到内部类。

我需要将我的xml文档传输到对象TestSuite类。一个重要的是，我从来不知道我会在<step>标签之间记下多少和哪种类型的文件。 我需要在step标记

之间设置所有节点密钥和节点值