大家好，又见面了，我是全栈君。
Java Bean：
package xml;
public class Person {
private String name ;
private int age ;
public Person(String name, int age) {
super();
this.name = name;
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
详细实现：
package xml;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
public class XmlGeneratorDemo {
public static void main(String[] args) {
String outputPath = System.getProperty("user.dir")+File.separator + "src"+File.separator+"person.xml";
generateXml(outputPath);
}
public static void generateXml(String outputPath) {
try {
Person [] arr = new Person[]{new Person("jinbo",20), new Person("gameboy",25)};
List<Person> list = Arrays.asList(arr);//将数组转换成List
Document doc = generateXml(list);//生成XML文件
outputXml(doc, outputPath);//将文件输出到指定的路径
} catch (Exception e) {
System.err.println("出现异常");
}
}
/**
* 将XML文件输出到指定的路径
* @param doc
* @param fileName
* @throws Exception
*/
private static void outputXml (Document doc, String fileName) throws Exception{
TransformerFactory tf = TransformerFactory.newInstance();
Transformer transformer = tf.newTransformer();
DOMSource source = new DOMSource(doc);
transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
transformer.setOutputProperty(OutputKeys.INDENT, "yes");//设置文档的换行与缩进
PrintWriter pw = new PrintWriter(new FileOutputStream(fileName));
StreamResult result = new StreamResult(pw);
transformer.transform(source, result);
System.out.println("生成XML文件成功!");
}
/**
* 生成XML文件
* @param list
* @return
*/
public static Document generateXml(List<Person> list){
Document doc = null;
Element root = null;
try {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
doc = builder.newDocument();
root = doc.createElement("person");
doc.appendChild(root);
} catch (Exception e) {
e.printStackTrace();
return null;//假设出现异常，则不再往下运行
}
int len = list.size() ;
Element element ;
for (int i = 0; i < len; i++) {
Person person = list.get(i);
element = doc.createElement("person"+(i+1));
element.setAttribute("age", ""+person.getAge());
element.setAttribute("name", person.getName());
root.appendChild(element);
}
return doc;
}
}
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