详细XML解析转换

1.建立test.xml文件

<books>    <book ID="1" name="java练习">        <author>Wmen</author>        <title>Java练习</title>        <publisher>哈哈哈</publisher>    </book>    <book ID="2" name="Xml解析">        <author>失眠忍者</author>        <title>Xml解析</title>        <publisher>啦啦啦</publisher>    </book>    <book ID="3" name="练习册">        <author>WJ</author>        <title>练习册</title>        <publisher>嘻嘻嘻</publisher>    </book></books>

2.建立testClass.java

3.利用getResourceAsStream方法读取test.xml文件并转换成流的形式：

InputStream ins = this.getClass().getResourceAsStream("test.xml");

4.用SAXReader().read(ins)将ins转换为Document：

document = new SAXReader().read(ins);

5.Element rootElt = document.getRootElement();转换成枚举类型以便于处理

6.迭代获得的枚举rootElt：

Iterator<Element> eltIterator = rootElt.elementIterator();

7.Element elt = eltIterator.next();自此已经可以获取元素值。

elt.getStringValue()即可

最后贴上源码包含转list等一下处理

项目目录结构（为maven项目）

相关jar包的引入：

<dependencies>        <dependency>            <groupId>junit</groupId>            <artifactId>junit</artifactId>            <version>4.11</version>        </dependency>        <dependency>            <groupId>log4j</groupId>            <artifactId>log4j</artifactId>            <version>1.2.17</version>        </dependency>        <dependency>            <groupId>dom4j</groupId>            <artifactId>dom4j</artifactId>            <version>1.6</version>        </dependency>        <dependency>            <groupId>org.apache.commons</groupId>            <artifactId>commons-lang3</artifactId>            <version>3.1</version>        </dependency>    </dependencies>

testClass代码：

public void test(){        List<Map<String, String>> columnDatas = new ArrayList<Map<String, String>>();InputStream ins = this.getClass().getResourceAsStream("test.xml");System.out.println("将xml解析转换成流的形式："+ins);Document document = null;try {    document = new SAXReader().read(ins);    System.out.println("SAXReader().read()解析后的document："+document);            Element rootElt = document.getRootElement();            System.out.println("将document转成Element："+rootElt);            Iterator<Element> eltIterator = rootElt.elementIterator();            System.out.println("迭代后："+eltIterator);            while(eltIterator.hasNext()) {            Element elt = eltIterator.next();            System.out.println("取得元素"+elt.getStringValue());            List<Attribute> attributes = elt.attributes();            System.out.println("转list："+attributes);            Map<String, String> cd = new HashMap<String, String>();            for (Attribute attr : attributes) {            //保存xml里面属性属于这个TransXMLDTO里面            String name = StringUtils.trim(attr.getName());            System.out.println("属性名称"+name);//            TransXMLDTD.valueOf(name);            cd.put(name, StringUtils.trim((String) attr.getData()));}            columnDatas.add(cd);            System.out.println(columnDatas.get(0));        }} catch (DocumentException e) {e.printStackTrace();} finally {            try {                if (null != ins) {                    ins.close();                }            } catch (IOException e) {            logger.debug("流关闭失败");                throw new RuntimeException("流关闭失败");            }}System.out.println(this.getClass().getSimpleName());}

利用Junit进行简单的测试

package controller;import org.junit.Test;public class testClassSon extends testClass {    @Test   public void testSon(){   test();   }}

运行后结果为

注意：若用idea进行开发，需设置test.xml路径，因为eclipse和idea的编译读取文件时的处理不一样，若不设置

this.getClass().getResourceAsStream("test.xml")

处会读取不到文件。

Maven项目下可在pom.xml配置添加如下代码即可读取到

<build>        <finalName>WjTest</finalName>        <resources>            <resource>                <directory>${basedir}/src/main/java</directory>                <includes>                    <include>**/*.properties</include>                    <include>**/*.xml</include>                </includes>            </resource>            <resource>                <directory>${basedir}/src/main/resources</directory>            </resource>        </resources></build>