在可观察列表中编组本地日期-Java 学习之路

我有一个可观察的 class 清单 . 使用以下内容编组此列表

public void saveBillsToFile(File file){
    try{    
        JAXBContext context = JAXBContext
                .newInstance(BillListWrapper.class);
        Marshaller m = context.createMarshaller();
        m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

        BillListWrapper wrapper = new BillListWrapper();
        wrapper.setBills(budget.getBills());

        m.marshal(wrapper, file);

        //TODO setPersonFilePath(file);
    }catch(Exception e){
        e.printStackTrace(System.out);
    }

但是，当我向Bill类添加LocalDate对象属性时，我得到NoSuchMethodException . 我发现一篇帖子说我需要创建一个XML适配器

public class LocalDateAdapter extends XmlAdapter<String, LocalDate> {
public LocalDate unmarshal(String v) throws Exception {
    return LocalDate.parse(v);
}

public String marshal(LocalDate v) throws Exception {
    return v.toString();
}
}

我不确定在哪里放这个 . 我假设它与我的包装器有关

@XmlRootElement(name = "bills")
public class BillListWrapper {

private List<Bill> bills;

@XmlElement(name = "bill")
public List<Bill> getBills() {
    return bills;
}

public void setBills(List<Bill> bills) {
    this.bills = bills;
}

票据类：

public class Bill{

//Properties
private StringProperty name = new SimpleStringProperty();
private StringProperty description = new SimpleStringProperty();
private IntegerProperty amount = new SimpleIntegerProperty();
private IntegerProperty payable = new SimpleIntegerProperty();
private IntegerProperty allocatedAmount = new SimpleIntegerProperty();
private IntegerProperty owedAmount = new SimpleIntegerProperty();
private IntegerProperty priority = new SimpleIntegerProperty();
private IntegerProperty recurrence = new SimpleIntegerProperty();
private StringProperty payments = new SimpleStringProperty();
//private ObjectProperty<LocalDate> lastPayment = new SimpleObjectProperty<LocalDate>();
int originalAmount;
int originalOwed;


public Bill(){
    name.set("");
    amount.set(0);
    owedAmount.set(0);
    allocatedAmount.set(0);
    description.set("");
    payments.set("");
    originalAmount = 0;
}

public void allocate(int allocation){
    System.out.println(allocation);
    allocatedAmount.set(originalAmount + allocation);
    if(allocation > amount.get()){
        owedAmount.set(originalOwed - allocation + amount.get());
    }else if(allocation < amount.get()){
        owedAmount.set(originalOwed - allocation + amount.get());
    }else if(allocation == amount.get()){
        owedAmount.set(originalOwed);
    }

}

public void pay(){
    if(payable.get() <= allocatedAmount.get()){
        allocatedAmount.set(allocatedAmount.get() - payable.get());
    }else{
        Alert alert = new Alert(AlertType.ERROR);
        alert.setTitle("Error!");
        alert.setHeaderText("Can't Pay");
        alert.setContentText("There is not enough money allocated to pay this.\nChange the value and try again.");

        alert.showAndWait();
    }
}
 //Getters and setters removed

堆栈跟踪：

（java：15134）：Gtk-WARNING **：无法在module_path中找到主题引擎：“adwaita”，2017年7月19日下午4:12:01 com.sun.xml.internal.bind.v2.ClassFactory create0 INFO ：没有在类java.time.LocalDate java.lang.NoSuchMethodException上找到的默认构造函数：java.lang.Class.Cons.DeclaredConstructor中的java.lang.Class.getConstructor0（Class.java:3082）中的java.time.LocalDate . （） Class.java:2178）com.sun.xml.internal.bind.v2.ClassFactory.create0（ClassFactory.java:89）at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.createInstance（ClassBeanInfoImpl . java：270）at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext.createInstance（UnmarshallingContext.java:684）at com.sun.xml.internal.bind.v2.runtime.unmarshaller.StructureLoader . startElement（StructureLoader.java:171）位于com.sun.xml.internal.bind.v2.runtime的com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext._startElement（UnmarshallingContext.java:559） . unmarshaller.UnmarshallingContext.startElem ent（UnmarshallingContext.java:538）位于com.sun.org.apind.v2.runtime.unmarshaller.SAXConnector.startElement（SAXConnector.java:153）的com.sun.org.apache.xerces.internal.parsers . AbstractSAXParser.startElement（AbstractSAXParser.java:509）位于com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement（AbstractXMLDocumentParser.java:182）的com.sun.org.apache.xerces.internal.impl . XMLNSDocumentScannerImpl.scanStartElement（XMLNSDocumentScannerImpl.java:351）位于com.sun.org.apache上的com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl $ FragmentContentDriver.next（XMLDocumentFragmentScannerImpl.java:2784） . impl.XMLDocumentScannerImpl.next（XMLDocumentScannerImpl.java:602）位于com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next（XMLNSDocumentScannerImpl.java:112）的com.sun.org.apache.xerces.internal . com.sun.org.apache.xerces.inter中的impl.XMLDocumentFragmentScannerImpl.scanDocument（XMLDocumentFragmentScannerImpl.java:505） nal.parsers.XML11Configuration.parse（XML11Configuration.java:841）位于com.sun.org.apache.xerces上的com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse（XML11Configuration.java:770） . internal.sparsers.XMLParser.parse（XMLParser.java:141）at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse（AbstractSAXParser.java:1213）at com.sun.org.apache.xerces . 在com.sun.xml的com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:243）的internal.jaxp.SAXParserImpl $ JAXPSAXParser.parse（SAXParserImpl.java:643） . internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal（UnmarshallerImpl.java:214）位于javax.xml.bind.helpers.AbstractUnmarshallerImpl的javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal（AbstractUnmarshallerImpl.java:157） . unmarshal（AbstractUnmarshallerImpl.java:162）at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal（AbstractUnmarshallerImpl.java:171）at javax.xml.bind.helpers.AbstractUnmarshallerImp l.unmarshal（AbstractUnmarshallerImpl.java:189）在budget.Main.loadBillsFromFile（Main.java:62）的budget.Main.start（Main.java:39）at com.sun.javafx.application.LauncherImpl.lambda $ launchApplication1 $ com（LauncherImpl.java:863）at com.sun.javafx.application.PlatformImpl.lambda $ runAndWait $ 119（PlatformImpl.java:326）at com.sun.javafx.application.PlatformImpl.lambda $ null $ 117（PlatformImpl.java： 295）java.sse.javafx.application.PlatformImpl.lambda上的java.security.AccessController.doPrivileged（Native Method）com.sun.glass.ui.InvokeLaterDispatcher $ Future.run上的$ runLater $ 118（PlatformImpl.java:294）（InvokeLaterDispatcher.java:95）at com.sun.glass.ui.gtk.GtkApplication._runLoop（Native Method）at com.sun.glass.ui.gtk.GtkApplication.lambda $ null $ 450（GtkApplication.java:139）at at java.lang.Thread.run（Thread.java:748）sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method）中的Application start方法java.lang.reflect.InvocationTargetException中的异常sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62）at sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）at java.lang.reflect.Method.invoke（Method.java:498）at com.sun位于sun.reflect的sun.reflect.NativeMethodAccessorImpl.invoke0（本地方法）的com.sun.javafx.application.LauncherImpl.launchApplication（LauncherImpl.java:328）中的.javafx.application.LauncherImpl.launchApplicationWithArgs（LauncherImpl.java:389） .nativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62）at sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）at java.lang.reflect.Method.invoke（Method.java:498）at sun.launcher.LauncherHelper $ FXHelper.main（LauncherHelper.java:767）引起：java.lang.RuntimeException：com.sun.javafxx中com.sun.javafx.application.LauncherImpl.launchApplication1（LauncherImpl.java:917）的Application start方法中的异常 . application.LauncherImpl.lambda $ launchApplication $ 99（LauncherImpl.java ：182）at java.lang.Thread.run（Thread.java:748）引起：java.lang.NoSuchMethodError：java.stime.Lind . （ . ）at com.sun.xml.internal.bind.v2.ClassFactory . create.com（ClassFactory.java:96）位于com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.createInstance（ClassBeanInfoImpl.java:270）的com.sun.xml.internal.bind.v2.runtime.unmarshaller . UnmarshallingContext.createInstance（UnmarshallingContext.java:684）位于com.sun.xml.internal.bind.v2的com.sun.xml.internal.bind.v2.runtime.unmarshaller.StructureLoader.startElement（StructureLoader.java:171） . run.unmarshaller.UnmarshallingContext._startElement（UnmarshallingContext.java：559）位于com.sun.xml.internal的com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext.startElement（UnmarshallingContext.java:538） . com.sun.org上的com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement（AbstractSAXParser.java:509）中的bind.v2.runtime.unmarshaller.SAXConnector.startElement（SAXConnector.java:153） . apache.xerces.internal.pars ers.AbstractXMLDocumentParser.emptyElement（AbstractXMLDocumentParser.java:182）位于com.sun.org.apache.erache.inmpl.XMLNSDocumentScannerImpl.scanStartElement（XMLNSDocumentScannerImpl.java:351）的com.sun.org.apache.xerces.internal . 位于com.sun.org.apache.xerces的com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next（XMLDocumentScannerImpl.java:602）中的impl.XMLDocumentFragmentScannerImpl $ FragmentContentDriver.next（XMLDocumentFragmentScannerImpl.java:2784） . 在com.sun.org.apache.xerces的com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument（XMLDocumentFragmentScannerImpl.java:505）中的internal.impl.XMLNSDocumentScannerImpl.next（XMLNSDocumentScannerImpl.java:112） . 在com.sun.org.apache.xerces的com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse（XML11Configuration.java:770）中的internal.parsers.XML11Configuration.parse（XML11Configuration.java:841） . com.un.org.apache.xerces.interna上的internal.parsers.XMLParser.parse（XMLParser.java:141） l.parsers.AbstractSAXParser.parse（AbstractSAXParser.java:1213）位于com.sun.xml.internal的com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl $ JAXPSAXParser.parse（SAXParserImpl.java:643） . bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:243）位于javax.xml的com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal（UnmarshallerImpl.java:214） . bind.helpers.AbstractUnmarshallerImpl.unmarshal（AbstractUnmarshallerImpl.java:157）位于javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal（AbstractUnmarshallerImpl.java:162）的javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal（AbstractUnmarshallerImpl.java： 171）位于com的budget.Main.start（Main.java:39）的budget.Main.loadBillsFromFile（Main.java:62）的javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal（AbstractUnmarshallerImpl.java:189） . sun.javafx.application.LauncherImpl.lambda $ launchApplication1 $ 106（LauncherImpl.java:863）at com.sun.javafx.application.PlatformImpl.lambda $ runAndWai来自com.sun.javafx的java.security.AccessController.doPrivileged（Native Method）的com.sun.javafx.application.PlatformImpl.lambda $ null $ 117（PlatformImpl.java:295）上的$ 119（PlatformImpl.java:326） . application.PlatformImpl.lambda $ runLater $ 118（PlatformImpl.java:294）at com.sun.glass.ui.InvokeLaterDispatcher $ Future.run（InvokeLaterDispatcher.java:95）at com.sun.glass.ui.gtk.GtkApplication._runLoop （本地方法）at com.sun.glass.ui.gtk.GtkApplication.lambda $ null $ 450（GtkApplication.java:139）... 1更多由以下引起：java.lang.NoSuchMethodException：java.lang.Class.Cons.Dat . （java.lang.Cattructor）的java.lang.Class.Cons.DeclaredConstructor（Class.java:2178）的java.lang.Class.Constructor0（ . sun.xml.internal.bind.v2.ClassFactory.create0（ClassFactory.java:89）... 35更多异常运行应用程序预算 . 主要

在可观察列表中编组本地日期

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