Java学习

java,spring,structs,hibernate,jsf,ireport,jfreechart,jasperreport,tomcat,jboss -----本博客已经搬家了,新的地址是 http://www.javaly.cn 如果有对文章有任何疑问或者有任何不懂的地方,欢迎到www.javaly.cn (Java乐园)指出,我会尽力帮助解决。一起进步

 

JAVA Webservices 实现天气预报

最近工作有用到web services,而这两天也比较有空,就弄了一个获取天气预报的Util。以前以为这有多难,因为数据来源是个困难。现在用web services的技术,这个就不用管了。说共享也好,说偷也好,总之是达到目的了。网上找了几个提供web services的网站。发现下面这个是相当不错的。
http://www.webxml.com.cn/Webservices/WeatherWebService.asmx

下面就用java把具体的代码写写吧!
这里我采用比较简单的get请求调用,毕竟这也没什么秘密可言,就用最简单的就可以了。
还有,这里很多捕获异常的东西给我去掉了,自己加吧!

public final class WeatherUtil
{
private static String SERVICES_HOST = "www.webxml.com.cn";
private static String WEATHER_SERVICES_URL = "http://www.webxml.com.cn/WebServices/WeatherWebService.asmx/";
private static String SUPPORT_CITY_URL = WEATHER_SERVICES_URL
+ "getSupportCity?byProvinceName=ALL";
private static String WEATHER_QUERY_URL = WEATHER_SERVICES_URL
+ "getWeatherbyCityName?theCityName=";
private WeatherUtil(){}
public static InputStream getSoapInputStream(String url)
{
InputStream is = null;

URL U = new URL(url);
URLConnection conn = U.openConnection();
conn.setRequestProperty("Host", SERVICES_HOST);
conn.connect();
is = conn.getInputStream();
return is;
}
//取得支持的城市列表
public static ArrayList<String> getSupportCity()
{
ArrayList cityList = null;
Document doc;
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
DocumentBuilder db = dbf.newDocumentBuilder();
InputStream is = getSoapInputStream(SUPPORT_CITY_URL);
doc = db.parse(is);
NodeList nl = doc.getElementsByTagName("string");
int len = nl.getLength();
cityList = new ArrayList<String>(len);
for (int i = 0; i < len; i++)
{
Node n = nl.item(i);
String city = n.getFirstChild().getNodeValue();
cityList.add(city);
}
is.close();
return cityList;
}
//取得城市的天气
public static ArrayList<String> getWeather(String city)
{
ArrayList weatherList = null;
Document doc;
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
DocumentBuilder db = dbf.newDocumentBuilder();
//这里他的编码格式就是这样,我试了几个也没办法。。只好这样混过去了
InputStream is = getSoapInputStream(WEATHER_QUERY_URL
+ new String(city.getBytes("UTF-8"), "GBK"));
doc = db.parse(is);
NodeList nl = doc.getElementsByTagName("string");
int len = nl.getLength();
weatherList = new ArrayList<String>(len);
for (int i = 0; i < len; i++)
{
Node n = nl.item(i);
String weather = n.getFirstChild().getNodeValue();
weatherList.add(weather);
}
is.close();
return weatherList;
}

public static void main(String[] args) throws Exception
{
ArrayList<String> weatherList = WeatherUtil.getWeather("59287");
// ArrayList<String> weatherList = WeatherUtil.getSupportCity();
for (String weather : weatherList)
{
System.out.println(weather);
}
}
}



文章来源 mccxj
鼠中无大将的博客
, 文章地址 http://mccxj.javaeye.com/blog/144161

posted on 2009-04-08 14:27 找个美女做老婆 阅读(745) 评论(1)  编辑  收藏

评论

# re: JAVA Webservices 实现天气预报 2010-08-03 11:13 lb_rain

ArrayList<String> 处编译错误

Multiple markers at this line
- The type ArrayList is not generic; it cannot be parameterized with
arguments <String>
- Syntax error, parameterized types are only available if source level
is 5.0

我用的jdk1.5.0

请问你用的哪个版本?  回复  更多评论   


只有注册用户登录后才能发表评论。


网站导航:
 

导航

统计

公告

本blog已经搬到新家了, 新家:www.javaly.cn
 http://www.javaly.cn

常用链接

留言簿(6)

随笔档案

文章档案

搜索

最新评论

阅读排行榜

评论排行榜