1.需要的jar包
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
2.配置文件
配置文件地址(提取码z4vf)
https://pan.baidu.com/s/1nGZL-QWYZxrBS8LEC0Pgnw
3.工具类
package com.xiaolc.util;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* 选择地区工具,包含全国各地省级市级
* @author LiuJinan
*
*/
public class LocalUtil {
//各地区xml文件路径
private static final String LOCAL_LIST_PATH = "config/LocList.xml";
//所有国家名称List
private static final List<String> COUNTRY_REGION = new ArrayList<String>();
private static LocalUtil localutil;
private SAXReader reader;
private Document document;
private Element rootElement; //根元素
//初始化
private LocalUtil(){
//1.读取
reader = new SAXReader();
try {
document = reader.read(LOCAL_LIST_PATH);
} catch (DocumentException e) {
e.printStackTrace();
}
//2.获得根元素
rootElement = document.getRootElement();
//3.初始化所有国家名称列表
Iterator it = rootElement.elementIterator();
Element ele = null;
while(it.hasNext()){
ele = (Element)it.next();
COUNTRY_REGION.add(ele.attributeValue("Name"));
}
}
/**
*
* @author LiuJinan
* @TODO 功能: 获取所有国家名称
* @time 2016-8-26 上午9:02:05
* @return String[]
*/
public List<String> getCountry(){
return COUNTRY_REGION;
}
/**
*
* @author LiuJinan
* @TODO 功能: 根据国家名获取该国所有省份
* @time 2016-8-26 上午9:07:21
* @param countryName 国家名,从getCountry()从取出
* @return List<Element>
*/
private List<Element> provinces(String countryName){
Iterator it = rootElement.elementIterator();
List<Element> provinces = new ArrayList<Element>();
Element ele = null;
while(it.hasNext()){
ele = (Element)it.next();
COUNTRY_REGION.add(ele.attributeValue("Name"));
if(ele.attributeValue("Name").equals(countryName)){
provinces = ele.elements();
break;
}
}
return provinces;
}
/**
*
* @author LiuJinan
* @TODO 功能: 根据国家名获取该国所有省份
* @time 2016-8-26 上午9:07:21
* @param countryName 国家名,从getCountry()从取出
* @return List<Element>
*/
public List<String> getProvinces(String countryName){
List<Element> tmp = this.provinces(countryName);
List<String> list = new ArrayList<String>();
for(int i=0; i<tmp.size(); i++){
list.add(tmp.get(i).attributeValue("Name"));
}
return list;
}
/**
*
* @author LiuJinan
* @TODO 功能:根据国家名和省份名,获取该省城市名列表
* @time 2016-8-26 上午9:15:24
* @param
* @param provinceName
* @return
*/
private List<Element> cities(String countryName, String provinceName){
List<Element> provinces = this.provinces(countryName);
List<Element> cities = new ArrayList<Element>();
if(provinces==null || provinces.size()==0){ //没有这个城市
return cities;
}
for(int i=0; i<provinces.size(); i++){
if(provinces.get(i).attributeValue("Name").equals(provinceName)){
cities = provinces.get(i).elements();
break;
}
}
return cities;
}
/**
*
* @author LiuJinan
* @TODO 功能:根据国家名和省份名获取城市列表
* @time 2016-8-26 下午4:55:55
* @param countryName
* @param provinceName
* @return List<String>
*/
public List<String> getCities(String countryName, String provinceName){
List<Element> tmp = this.cities(countryName, provinceName);
List<String> cities = new ArrayList<String>();
for(int i=0; i<tmp.size(); i++){
cities.add(tmp.get(i).attributeValue("Name"));
}
return cities;
}
public static LocalUtil getInstance(){
if(localutil==null){
localutil = new LocalUtil();
}
return localutil;
}
}
4.测试代码
package xiaolc;
import com.xiaolc.util.LocalUtil;
import org.junit.Test;
import java.util.List;
/**
* @author lc
* @Date: 2018/11/29 11:12
*/
public class test {
@Test
public void test1(){
LocalUtil lu = LocalUtil.getInstance();
List<String> list = lu.getCities("中国", "北京");
for(int i=0; i<list.size(); i++){
System.out.print(list.get(i) + " ");
}
}
@Test
public void test2(){
LocalUtil lu = LocalUtil.getInstance();
List<String> list = lu.getProvinces("中国");
int j=0;
for(int i=0; i<list.size(); i++){
j++;
System.out.print(list.get(i) + " "+"\n");
}
System.out.println(j);
}
}
5.测试结果