1 使用vtd技術將xml轉換為Map

    1）引入maven依賴：

        <dependency>
            <groupId>com.ximpleware</groupId>
            <artifactId>vtd-xml</artifactId>
            <version>2.13</version>

        </dependency>

   2）轉換過程：

package com.wj.business.util;
import com.ximpleware.*;
 
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
public class ClientResponseUtil2 {
    private static final String UTF8 = "UTF-8";
    public static void main(String args[]) throws UnsupportedEncodingException, ParseException, XPathParseException, NavException, XPathEvalException {
        String resourceXml = "<?xml version=
 
\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n" +
                "<resources>\n" +
                "    <string name=\"January\">January</string>\n" +
                "    <string name=\"February\">February</string>\n" +
                "    <string name=\"March\"
 
>March</string>\n" +
                "    <string name=\"April\">April</string>\n" +
                "    <string name=\"May\">May</string>\n" +
                "    <string name=\"June\">June</string>\n" +
                "    <string name=\"July\">July</string>\n" +
                "    <string name=\"August\">August</string>\n" +
                "    <string name=\"September\">September</string>\n" +
                "    <string name=\"October\">October</string>\n" +
                "    <string name=\"November\">November</string>\n" +
                "    <string name=\"December\">December</string>\n" +
                "    <string name=\"Today\">Today</string>\n" +
                "    <string name=\"Tomorrow\">Tomorrow</string>\n" +
                "\n" +
                "</resources>";
VTDGen vg = new VTDGen();
vg.setDoc(resourceXml.getBytes(UTF8));
vg.parse(false);
VTDNav vn = vg.getNav();
//利用AutoPilot進行節點遍歷
AutoPilot ap = new AutoPilot();
        int i = -1;
ap.bind(vn);
ap.selectXPath("/resources");
HashMap<String, Object> map = new HashMap<String, Object>();
        while ((i = ap.evalXPath()) != -1) {
            if (vn.toElement(VTDNav.FIRST_CHILD)) {
                do {
                    if (vn.getText()!=-1){
                        map.put(vn.toString(vn.getAttrVal("name")), vn.toString(vn.getText()));
}
                } while (vn.toElement(VTDNav.NEXT_SIBLING));
}
            vn.toElement(VTDNav.PARENT);
}
        System.out.println(map);
}



}

使用的xml為：<?xml version="1.0" encoding="utf-8" standalone="no"?>
<resources>
    <string name="January">January</string>
    <string name="February">February</string>
    <string name="March">March</string>
    <string name="April">April</string>
    <string name="May">May</string>
    <string name="June">June</string>
    <string name="July">July</string>
    <string name="August">August</string>
    <string name="September">September</string>
    <string name="October">October</string>
    <string name="November">November</string>
    <string name="December">December</string>
    <string name="Today">Today</string>
    <string name="Tomorrow">Tomorrow</string>

</resources>

說明：這個例子取的是元素的具體的值，也可以通過方法：

vn.toString(vn.getCurrentIndex())(獲取具體標籤的值)替換程式碼中的 vn.toString(vn.getAttrVal("name"))（獲取name元素內容）來獲取到元素的Key值，來解析格式為"<name>wj</name><age>18</age>"的xml.

2 將Map轉換為xml格式（與上述操作可逆）

import java.util.*;
public class Test {
    public static String callMapToXML(Map map) {
        StringBuffer sb = new StringBuffer();
sb.append("<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?><resources>");
mapToXMLTest2(map, sb);
sb.append("</resources>");
        return sb.toString();
}

    private static void mapToXMLTest2(Map map, StringBuffer sb) {
        Set set = map.keySet();
        for (Iterator it = set.iterator(); it.hasNext();) {
            String key = (String) it.next();
Object value = map.get(key);
            if (null == value)
                value = "";
            if (value.getClass().getName().equals("java.util.ArrayList")) {
                ArrayList list = (ArrayList) map.get(key);
sb.append("<" + key + ">");
                for (int i = 0; i < list.size(); i++) {
                    HashMap hm = (HashMap) list.get(i);
mapToXMLTest2(hm, sb);
}
                sb.append("</" + key + ">");
} else {
                if (value instanceof HashMap) {
                    sb.append("<" + key + ">");
mapToXMLTest2((HashMap) value, sb);
sb.append("</" + key + ">");
} else {
                    /*返回這種格式的xml會直接執行如下程式碼*/
sb.append("<String name=\"" + key + "\">" + value + "</String>");
}

            }

        }
    }
    public static void main(String args[]){
        Map<String,Object> map =new HashMap<String, Object>();
map.put("app_name","testApp");
map.put("search_label","Dictionary");
map.put("search_hint","Search the dictionary");
String ss = Test.callMapToXML(map);
System.out.println(ss);
}

}