java - 如何使用 xml 文件中的数据创建 GUI？

Question

我想要的是创建一个由一组按钮组成的动态 GUI(在我的例子中，每个按钮代表 xml 文件中的一个元素)，当我单击一个按钮时，将创建一个代表其子元素的按钮..我不知道是否可以使用 DOM 或 JAXB 来做到这一点..如果有人可以帮助我或有其他想法，我将非常感激!谢谢!!

  <?xml version="1.0" encoding="UTF-8" ?> 

- <HWData xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="hw_data.xsd">

  <Header time="2015-02-03T02:02:56" uploaded="false" version="1.0" /> 

- <NE MOID="NE-SGSN-387826" objectClass="NE" objectClassVersion="1" NEId="387826" NEType="SGSN" systemTitle="SGSN-MNB-" locationName="MANOUBA" systemReleaseVersion="J8" softwareReleaseVersion="J8 50.70-0 50" serialNumber="387826" vendorName="Nokia">

- <EQHO MOID="NE-SGSN-387826/DN:EQHO-1A" objectClass="EQHO" objectClassVersion="1" equipmentHolderId="11" equipmentHolderType="Cabinet" equipmentHolderSpecificType="EC217_A" locationName="1A" serialNumber="" interchangeability="" version="" identificationCode="" vendorName="Nokia">

- <EQHO MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-1-0" objectClass="EQHO" objectClassVersion="1" equipmentHolderId="11100" equipmentHolderType="Cartridge" equipmentHolderSpecificType="ACH16_A" locationName="1A001-00" serialNumber="XY131403380" interchangeability="" version="" identificationCode="" vendorName="Nokia">

  <UNIT MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-1-0/UNIT-1-PIU-1" objectClass="UNIT" objectClassVersion="1" unitId="1" unitTypeActual="ACPI4_A" unitTypeExpected="ACPI4_A" position="1" operationalState="enabled" serialNumber="FK124600007" interchangeability="B" version="3C" identificationCode="C111969" vendorName="Nokia" /> 

  <UNIT MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-1-0/UNIT-1-RTM-1" objectClass="UNIT" objectClassVersion="1" unitId="1" unitTypeActual="CPRT4_A" unitTypeExpected="CPRT4_A" position="1" operationalState="enabled" serialNumber="JG130400410" interchangeability="A" version="2A" identificationCode="C111970" vendorName="Nokia" /> 

  <UNIT MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-1-0/UNIT-FAN-2" objectClass="UNIT" objectClassVersion="1" unitId="4" unitTypeActual="AFAMO_A" unitTypeExpected="AFAMO_A" position="4" operationalState="enabled" serialNumber="XY131400960" interchangeability="B" version="3B" identificationCode="C110638" vendorName="Nokia" /> 

  <UNIT MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-1-0/UNIT-FAN-1" objectClass="UNIT" objectClassVersion="1" unitId="4" unitTypeActual="AFAMO_A" unitTypeExpected="AFAMO_A" position="4" operationalState="enabled" serialNumber="XY131400980" interchangeability="B" version="3B" identificationCode="C110638" vendorName="Nokia" /> 

  </EQHO>

  <EQHO MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-1-0" objectClass="EQHO" objectClassVersion="1" equipmentHolderId="111000501" equipmentHolderType="Cartridge" equipmentHolderSpecificType="CHAF2_A" locationName="1A001-00-FFI-1" serialNumber="31401904" interchangeability="A" version="" identificationCode="C110639" vendorName="Nokia" /> 

- <EQHO MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-2-0" objectClass="EQHO" objectClassVersion="1" equipmentHolderId="11200" equipmentHolderType="Cartridge" equipmentHolderSpecificType="ACH16_A" locationName="1A002-00" serialNumber="XY131403370" interchangeability="" version="" identificationCode="" vendorName="Nokia">

  <UNIT MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-2-0/UNIT-1-PIU-1" objectClass="UNIT" objectClassVersion="1" unitId="1" unitTypeActual="ACPI4_A" unitTypeExpected="ACPI4_A" position="1" operationalState="enabled" serialNumber="FK124600059" interchangeability="B" version="3C" identificationCode="C111969" vendorName="Nokia" /> 

  <UNIT MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-2-0/UNIT-SHM-2" objectClass="UNIT" objectClassVersion="1" unitId="3" unitTypeActual="ASMGR_A" unitTypeExpected="ASMGR_A" position="3" operationalState="enabled" serialNumber="XY131402619" interchangeability="A" version="4B" identificationCode="C110581" vendorName="Nokia" /> 

  <UNIT MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-2-0/UNIT-FAN-3" objectClass="UNIT" objectClassVersion="1" unitId="4" unitTypeActual="AFAMO_A" unitTypeExpected="AFAMO_A" position="4" operationalState="enabled" serialNumber="XY131400977" interchangeability="B" version="3B" identificationCode="C110638" vendorName="Nokia" /> 

  <UNIT MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-2-0/UNIT-FAN-1" objectClass="UNIT" objectClassVersion="1" unitId="4" unitTypeActual="AFAMO_A" unitTypeExpected="AFAMO_A" position="4" operationalState="enabled" serialNumber="XY131400971" interchangeability="B" version="3B" identificationCode="C110638" vendorName="Nokia" /> 

  <UNIT MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-2-0/UNIT-FAN-2" objectClass="UNIT" objectClassVersion="1" unitId="4" unitTypeActual="AFAMO_A" unitTypeExpected="AFAMO_A" position="4" operationalState="enabled" serialNumber="XY131400975" interchangeability="B" version="3B" identificationCode="C110638" vendorName="Nokia" /> 

  </EQHO>

  <EQHO MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-2-0" objectClass="EQHO" objectClassVersion="1" equipmentHolderId="112000502" equipmentHolderType="Cartridge" equipmentHolderSpecificType="CHAF2_A" locationName="1A002-00-FFI-2" serialNumber="31401893" interchangeability="A" version="" identificationCode="C110639" vendorName="Nokia" /> 

- <EQHO MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-3-0" objectClass="EQHO" objectClassVersion="1" equipmentHolderId="11300" equipmentHolderType="Cartridge" equipmentHolderSpecificType="ACH16_A" locationName="1A003-00" serialNumber="XY131403377" interchangeability="" version="" identificationCode="" vendorName="Nokia">

  <UNIT MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-3-0/UNIT-SHM-1" objectClass="UNIT" objectClassVersion="1" unitId="3" unitTypeActual="ASMGR_A" unitTypeExpected="ASMGR_A" position="3" operationalState="enabled" serialNumber="XY131301773" interchangeability="A" version="4B" identificationCode="C110581" vendorName="Nokia" /> 

  <UNIT MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-3-0/UNIT-FAN-1" objectClass="UNIT" objectClassVersion="1" unitId="4" unitTypeActual="AFAMO_A" unitTypeExpected="AFAMO_A" position="4" operationalState="enabled" serialNumber="XY131400963" interchangeability="B" version="3B" identificationCode="C110638" vendorName="Nokia" /> 

  <UNIT MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-3-0/UNIT-FAN-2" objectClass="UNIT" objectClassVersion="1" unitId="4" unitTypeActual="AFAMO_A" unitTypeExpected="AFAMO_A" position="4" operationalState="enabled" serialNumber="XY131400962" interchangeability="B" version="3B" identificationCode="C110638" vendorName="Nokia" /> 

  <UNIT MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-3-0/UNIT-FAN-3" objectClass="UNIT" objectClassVersion="1" unitId="4" unitTypeActual="AFAMO_A" unitTypeExpected="AFAMO_A" position="4" operationalState="enabled" serialNumber="XY131400988" interchangeability="B" version="3B" identificationCode="C110638" vendorName="Nokia" /> 

  </EQHO>

  <EQHO MOID="NE-SGSN-387826/DN:EQHO-1A/EQHO-3-0" objectClass="EQHO" objectClassVersion="1" equipmentHolderId="113000503" equipmentHolderType="Cartridge" equipmentHolderSpecificType="CHAF2_A" locationName="1A003-00-FFI-3" serialNumber="31401903" interchangeability="A" version="" identificationCode="C110639" vendorName="Nokia" /> 

  </EQHO>

  </NE>

  </HWData>

Answer 1

删除了之前基于 XStream 的答案，支持 JAXB。

将 jaxb2-maven-plugin 添加到您的 pom.xml 中:

        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>jaxb2-maven-plugin</artifactId>
            <executions>
                <execution>
                    <goals>
                        <goal>xjc</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                <schemaDirectory>src/main/resources/xsd/</schemaDirectory>
            </configuration>
        </plugin>

把你的XSD放在src/main/resources/xsd/

类 HwDataTree 扩展 DynamicTreeDemo这是 Oracle 教程的一部分。下载这两个类并将它们添加到您的项目中。

import generated.EQHO;
import generated.HWData;
import generated.NE;
import generated.UNIT;

import javax.swing.*;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Unmarshaller;
import java.io.File;
import java.util.List;

public class HwDataTree extends DynamicTreeDemo {

    // the path of your XML file
    private static final String PATH = "C:/example.xml";

    @Override
    public void populateTree(DynamicTree treePanel) {
        HWData hwData = initData();
        treePanel.addObject(null, formatHeader(hwData));
        treePanel.addObject(null, formatNE(hwData));
        addNodesRecursive(hwData.getNE(), null, treePanel);
    }

    private HWData initData() {
        try {
            File xml = new File(PATH);
            JAXBContext jaxbContext = JAXBContext.newInstance(HWData.class);
            Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
            return (HWData) jaxbUnmarshaller.unmarshal(xml);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    private void addNodesRecursive(NE parent, DefaultMutableTreeNode parentNode, DynamicTree treePanel) {
        List<EQHO> children = parent.getEQHO();
        for (EQHO child : children) {
            DefaultMutableTreeNode childNode = treePanel.addObject(parentNode, formatEQHO(child));
            addNodesRecursive(child, childNode, treePanel);
        }
    }

    private void addNodesRecursive(EQHO parent, DefaultMutableTreeNode parentNode, DynamicTree treePanel) {
        List<Object> children = parent.getEQHOAndUNIT();
        for (Object child : children) {
            DefaultMutableTreeNode childNode = treePanel.addObject(parentNode, getMOID(child));
            if (child instanceof EQHO) {
                EQHO eqho = (EQHO) child;
                addNodesRecursive(eqho, childNode, treePanel);
            }
        }
    }

    private String getMOID(Object child) {
        String moid;
        if (child instanceof EQHO) {
            EQHO eqho = (EQHO) child;
            moid = formatEQHO(eqho);
        } else if (child instanceof UNIT) {
            UNIT unit = (UNIT) child;
            moid = formatUnit(unit);
        } else {
            throw new RuntimeException("Could not parse type of: " + child);
        }
        return moid;
    }

    private String formatHeader(HWData hwData) {
        return String.format("Header time=%s", hwData.getHeader().getTime());
    }

    private String formatNE(HWData hwData) {
        return String.format("NE MOID=%s", hwData.getNE().getMOID());
    }

    private String formatEQHO(EQHO child) {
        return String.format("EQHO MOID=%s", child.getMOID());
    }

    private String formatUnit(UNIT unit) {
        return String.format("UNIT MOID=%s", unit.getMOID());
    }

    public static void main(String[] args) {
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }

    private static void createAndShowGUI() {
        JFrame frame = new JFrame("Tree");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        HwDataTree newContentPane = new HwDataTree();
        newContentPane.setOpaque(true);
        frame.setContentPane(newContentPane);
        frame.pack();
        frame.setVisible(true);
    }
}

通过执行 mvn clean compile 生成包装器。

然后运行HwDataTree，结果是这样的: