将XML实体映射到Java对象

我相当肯定,这是 XML到 Java对象转换的许多重复的问题之一.
但是我开始了这个线程,因为我找不到更简单的解决方案.

我有一个xsd [我正在设计它]和xml.
我想根据映射将xml数据自动映射到Java bean

<tns:SummaryCart xmlns:tns="SummaryCart" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="SummaryCart.xsd">
    <SummaryElement type="test">
        <order>1</order>
        <id>A</id>
        <displayName>A</displayName>
        <subElements>
            <order>1</order>
            <id>Preactivation</id>
            <displayName>Preactivation</displayName>
        </subElements>
        <maxlines>1</maxlines>
    </SummaryElement>
</tns:SummaryCart>

现在我的Java类将会

public class SummaryCart{
    private List<SummaryElement> summaryElementList;
}
public class SummaryElement {
    private int order;
    private String id;
    private String displayName;
    private String property;
    private List<SummaryElement> subElements;
    private int maxlines;
    private String type;
}

有没有任何简单的工具/框架可以自动将数据从XML映射到Java beans(必须支持属性/元素映射).教程会很好

Btw,我正在使用Spring框架,如果采用spring-oxm优势,欢迎.

下面是如何使用 JAXB (JSR-222)将对象映射到XML.JDK / JRE中包含一个实现,从Java SE 6开始.JSXB由Spring支持(参见第8.5节： http://static.springsource.org/spring-ws/site/reference/html/oxm.html)

SummaryCart

import java.util.List;
import javax.xml.bind.annotation.*;

@XmlRootElement(name="SummaryCart",namespace="SummaryCart")
@XmlAccessorType(XmlAccessType.FIELD)
public class SummaryCart{

    @XmlElement(name="SummaryElement")
    private List<SummaryElement> summaryElementList;

}

SummaryElement

import java.util.List;
import javax.xml.bind.annotation.*;

@XmlAccessorType(XmlAccessType.FIELD)
public class SummaryElement {

    private int order;
    private String id;
    private String displayName;
    private String property;
    private List<SummaryElement> subElements;
    private int maxlines;

    @XmlAttribute
    private String type;

}

演示

import java.io.File;
import javax.xml.bind.*;

public class Demo {

    public static void main(String[] args) throws Exception {
        JAXBContext jc = JAXBContext.newInstance(SummaryCart.class);

        Unmarshaller unmarshaller = jc.createUnmarshaller();
        File xml = new File("src/forum15881876/input.xml");
        SummaryCart sc = (SummaryCart) unmarshaller.unmarshal(xml);

        Marshaller marshaller = jc.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT,true);
        marshaller.setProperty(Marshaller.JAXB_SCHEMA_LOCATION,"SummaryCart.xsd");
        marshaller.marshal(sc,System.out);
    }

}

input.xml中/输出

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns2:SummaryCart xmlns:ns2="SummaryCart" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="SummaryCart.xsd">
    <SummaryElement type="test">
        <order>1</order>
        <id>A</id>
        <displayName>A</displayName>
        <subElements>
            <order>1</order>
            <id>Preactivation</id>
            <displayName>Preactivation</displayName>
            <maxlines>0</maxlines>
        </subElements>
        <maxlines>1</maxlines>
    </SummaryElement>
</ns2:SummaryCart>

原文链接：https://www.f2er.com/xml/292196.html

将XML实体映射到Java对象

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