【原创】组装xml字符串工具类

因为要用到拼接一些值成xml字符串所以写下了一个下工具类：

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * XML元素类

 * @author tangyangbo
 */
public class Element {
    private String name;                 //元素名
    private String nodeText = "";        //文本值
    private Map<String,String> property = new HashMap<String,String>(); //属性
    private boolean isleaf = true;       //是否子节点
    private List<Element> child = new ArrayList<Element>();         //子节点

    public Element(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
    public String getNodeText() {
        return nodeText;
    }
    public void setNodeText(String nodeText) {
        this.nodeText = nodeText;
    }
    public Map<String, String> getProperty() {
        return property;
    }
    public void setProperty(Map<String, String> property) {
        this.property = property;
    }
    public boolean isIsleaf() {
        return isleaf;
    }
    //这个方法应该屏蔽
    public void setIsleaf(boolean isleaf) {
        this.isleaf = isleaf;
    }
    public List<Element> getChild() {
        return child;
    }
    public void setChild(List<Element> child) {
        this.child = child;
        if(this.isleaf && this.child.size() > 0){
            this.isleaf = false;
        }
    }

    /**
     * 添加属性
     * @param key
     * @param value
     */
    public void addProperty(String key,String value){
        this.property.put(key, value);
    }

    /**
     * 添加子节点
     * @param el
     */
    public void addChild(Element el){
        this.child.add(el);
        if(this.isleaf && this.child.size() > 0){
            this.isleaf = false;
        }
    }
}

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * XML元素类

 * @author tangyangbo
 */
public class Element {
	private String name;                 //元素名
	private String nodeText = "";        //文本值
	private Map<String,String> property = new HashMap<String,String>(); //属性
	private boolean isleaf = true;       //是否子节点
	private List<Element> child = new ArrayList<Element>();         //子节点
	
	public Element(String name) {
		this.name = name;
	}
	
	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
	public String getNodeText() {
		return nodeText;
	}
	public void setNodeText(String nodeText) {
		this.nodeText = nodeText;
	}
	public Map<String, String> getProperty() {
		return property;
	}
	public void setProperty(Map<String, String> property) {
		this.property = property;
	}
	public boolean isIsleaf() {
		return isleaf;
	}
	//这个方法应该屏蔽
	public void setIsleaf(boolean isleaf) {
		this.isleaf = isleaf;
	}
	public List<Element> getChild() {
		return child;
	}
	public void setChild(List<Element> child) {
		this.child = child;
		if(this.isleaf && this.child.size() > 0){
			this.isleaf = false;
		}
	}

	/**
	 * 添加属性
	 * @param key
	 * @param value
	 */
	public void addProperty(String key,String value){
		this.property.put(key, value);
	}
	
	/**
	 * 添加子节点
	 * @param el
	 */
	public void addChild(Element el){
		this.child.add(el);
		if(this.isleaf && this.child.size() > 0){
			this.isleaf = false;
		}
	}
}

import java.util.Iterator;

/**
 * XMl工具类

 * @author tangyangbo
 */
public class XmlUtil {

    static String lt = "<";
    static String ltEnd = "</";
    static String rt = ">";
    static String rhtEnd = "/>";
    static String quotes = "\"";
    static String equal = "=";
    static String blank = " ";

    public static String elementToXml(Element el){
        StringBuffer result = new StringBuffer();
        //元素开始
        result.append(lt).append(el.getName());
        //判断是否有属性
        if(el.getProperty() != null && el.getProperty().size() > 0 ){
            Iterator iter = el.getProperty().keySet().iterator();
            while (iter.hasNext()) {
                String key = String.valueOf(iter.next());
                String value = el.getProperty().get(key);
                result.append(blank).append(key).append(equal)
                .append(quotes).append(value).append(quotes).append(blank);
            }
        }
        result.append(rt);//结束标记
        /*
         * 判断是否是叶子节点
         * 是叶子节点，添加节点内容
         * 不是叶子节点，循环添加子节点
         */
        if(el.isIsleaf()){
            result.append(el.getNodeText());
        }else{
            for(Element element :el.getChild()){
                result.append(elementToXml(element));
            }
        }
        //元素结束
        result.append(ltEnd).append(el.getName()).append(rt);
        return result.toString();
    }
}

import java.util.Iterator;

/**
 * XMl工具类

 * @author tangyangbo
 */
public class XmlUtil {
	
	static String lt = "<";
	static String ltEnd = "</";
	static String rt = ">";
	static String rhtEnd = "/>";
	static String quotes = "\"";
	static String equal = "=";
	static String blank = " ";
	
	public static String elementToXml(Element el){
		StringBuffer result = new StringBuffer();
		//元素开始
		result.append(lt).append(el.getName());
		//判断是否有属性
		if(el.getProperty() != null && el.getProperty().size() > 0 ){
			Iterator iter = el.getProperty().keySet().iterator();
			while (iter.hasNext()) {
				String key = String.valueOf(iter.next());
				String value = el.getProperty().get(key);
				result.append(blank).append(key).append(equal)
				.append(quotes).append(value).append(quotes).append(blank);
			}
		}
		result.append(rt);//结束标记
		/*
		 * 判断是否是叶子节点
		 * 是叶子节点，添加节点内容
		 * 不是叶子节点，循环添加子节点
		 */
		if(el.isIsleaf()){
			result.append(el.getNodeText());
		}else{
			for(Element element :el.getChild()){
				result.append(elementToXml(element));
			}
		}
		//元素结束
		result.append(ltEnd).append(el.getName()).append(rt);
		return result.toString();
	}
}

import java.util.Iterator;

/**
 * xml测试类

 * @author tangyangbo
 */
public class XMLTest {

    /**
     * @param args
     */
    public static void main(String[] args) {
        Element el = new Element("node");

        Element el1 = new Element("node1");
        el1.addProperty("name", "zhangshan");
        el1.addProperty("password", "123465");
        el1.setNodeText("11111");
        el.addChild(el1);

        Element el2 = new Element("node1");
        el2.addProperty("name", "lisi");
        el2.addProperty("password", "3333");
        el2.setNodeText("11111");
        el.addChild(el2);
        System.out.println(XmlUtil.elementToXml(el));
    }
}

import java.util.Iterator;

/**
 * xml测试类

 * @author tangyangbo
 */
public class XMLTest {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Element el = new Element("node");
		
		Element el1 = new Element("node1");
		el1.addProperty("name", "zhangshan");
		el1.addProperty("password", "123465");
		el1.setNodeText("11111");
		el.addChild(el1);
		
		Element el2 = new Element("node1");
		el2.addProperty("name", "lisi");
		el2.addProperty("password", "3333");
		el2.setNodeText("11111");
		el.addChild(el2);
		System.out.println(XmlUtil.elementToXml(el));
	}
}

运行结果：
<node><node1 name="zhangshan"  password="123465" >11111</node1><node1 name="lishi"  password="3333" >11111</node1></node>