java 获取新浪天气样例详解编程语言

前言：

提供天气api的厂商有很多，比如，腾讯、雅虎、中国天气网，在综合比较各个功能后，决定使用新浪的天气接口，主要是考虑到，新浪的接口可以直接通过城市名字查询天气，而像雅虎、中国天气网需要使用自己的内部城市编码，维护起来比较麻烦，另外有的厂商会收费。

实现思路：

通过新浪ip的api，获取ip归属地城市；

通过新浪天气的api，传入城市名字，获取城市的天气；

通过ip获取城市的url地址：

http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip=”+ip

通过城市获取天气的url地址：

“http://php.weather.sina.com.cn/xml.php?city=” + encodedCityName+ “&password=DJOYnieT8234jlsK&day=0”;

注意，city需要经过gbk编码，比如String encodedCityName = URLEncoder.encode(cityName, “GBK”);

password是固定的，新浪规定的，不需要修改；

基本代码：

通过ip获取城市

private static String getCityNameByIp(String ip) { 
		try{ 
			String ipUrl = "http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip="+ip; 
			HttpClient  client = new DefaultHttpClient(); 
			HttpGet get = new HttpGet(ipUrl); 
			HttpResponse  response = client.execute(get); 
			HttpEntity responseEntity = response.getEntity(); 
			//服务器端使用utf-8编码,所以这里用utf-8解析服务器端传来的字节流 
			String resultJsonStr = EntityUtils.toString(responseEntity,"utf-8"); 
			IpCityInfo result = new Gson().fromJson(resultJsonStr, IpCityInfo.class); 
			String cityName =  result.getCity(); 
			if(cityName == null){ 
				return ""; 
			} 
		}catch(Exception e){ 
			e.printStackTrace(); 
			logger.error("根据ip获取城市名字失败",e); 
		} 
		return ""; 
	}

这里使用了apache httpclient包，google的gson包，用于将json串转为java对象

通过城市名字获取天气

private static WeatherInfo getWeatherInfoByCityName(String cityName) { 
		 
		String encodedCityName = null; 
		try { 
			encodedCityName = URLEncoder.encode(cityName, "GBK"); 
		} catch (UnsupportedEncodingException e1) { 
			e1.printStackTrace(); 
		} 
		String url = "http://php.weather.sina.com.cn/xml.php?city=" + encodedCityName 
				+ "&password=DJOYnieT8234jlsK&day=0"; 
		try{ 
			HttpClient  client = new DefaultHttpClient(); 
			HttpGet get = new HttpGet(url); 
			HttpResponse  response = client.execute(get); 
			HttpEntity responseEntity = response.getEntity(); 
			InputStream content = responseEntity.getContent(); 
			JAXBContext context = JAXBContext.newInstance(Profile.class); 
			Unmarshaller  unmarshaller = context.createUnmarshaller(); 
			Profile result = (Profile) unmarshaller.unmarshal(content); 
			return result.getWeather(); 
		}catch(Exception e){ 
			e.printStackTrace(); 
			logger.error("根据ip获取城市名字失败",e); 
		} 
		return null; 
	}

这里用到了：jdk1.6自带的jaxb（java api for xml binding）用于将xml转java对象

辅助的实体类：

public class IpCityInfo implements Serializable{ 
 
	 
	/**     
	 * serialVersionUID:TODO（用一句话描述这个变量表示什么）     
	 *     
	 * @since Ver 1.1     
	 */     
	 
	private static final long serialVersionUID = 1L; 
	 
	 
	String ret; 
	String start; 
	String end; 
	String country; 
	String province; 
	String city; 
	String district; 
	String isp; 
	String type; 
	String desc; 
	 
	 
	 
	public String getRet() { 
		return ret; 
	} 
	public void setRet(String ret) { 
		this.ret = ret; 
	} 
	public String getStart() { 
		return start; 
	} 
	public void setStart(String start) { 
		this.start = start; 
	} 
	public String getEnd() { 
		return end; 
	} 
	public void setEnd(String end) { 
		this.end = end; 
	} 
	public String getCountry() { 
		return country; 
	} 
	public void setCountry(String country) { 
		this.country = country; 
	} 
	public String getProvince() { 
		return province; 
	} 
	public void setProvince(String province) { 
		this.province = province; 
	} 
	public String getCity() { 
		return city; 
	} 
	public void setCity(String city) { 
		this.city = city; 
	} 
	public String getDistrict() { 
		return district; 
	} 
	public void setDistrict(String district) { 
		this.district = district; 
	} 
	public String getIsp() { 
		return isp; 
	} 
	public void setIsp(String isp) { 
		this.isp = isp; 
	} 
	public String getType() { 
		return type; 
	} 
	public void setType(String type) { 
		this.type = type; 
	} 
	public String getDesc() { 
		return desc; 
	} 
	public void setDesc(String desc) { 
		this.desc = desc; 
	} 
	@Override 
	public String toString() { 
		return "IpCityInfo [ret=" + ret + ", start=" + start + ", end=" + end 
				+ ", country=" + country + ", province=" + province + ", city=" 
				+ city + ", district=" + district + ", isp=" + isp + ", type=" 
				+ type + ", desc=" + desc + "]"; 
	} 
	 
	 
	 
	 
	 
}

@XmlRootElement(name="Profiles")  
public class Profile { 
 
	private WeatherInfo weather; 
 
	public WeatherInfo getWeather() { 
		return weather; 
	} 
 
	@XmlElement(name="Weather")  
	public void setWeather(WeatherInfo weather) { 
		this.weather = weather; 
	} 
	 
	 
}

public class WeatherInfo implements Serializable{ 
/**     
* serialVersionUID:TODO（用一句话描述这个变量表示什么）     
*     
* @since Ver 1.1     
*/     
/* 
* <?xml version="1.0" encoding="UTF-8"?> 
<!-- published at 2015-07-01 10:26:29 --> 
<Profiles> 
<Weather> 
<city>青岛</city> 
<status1>晴</status1> 
<status2>晴</status2> 
<figure1>qing</figure1> 
<figure2>qing</figure2> 
<direction1>北风</direction1> 
<direction2>北风</direction2> 
<power1>3-4</power1> 
<power2>3-4</power2> 
<temperature1>31</temperature1> 
<temperature2>19</temperature2> 
<ssd>8</ssd> 
<tgd1>28</tgd1> 
<tgd2>28</tgd2> 
<zwx>4</zwx> 
<ktk>4</ktk> 
<pollution>1</pollution> 
<xcz>4</xcz> 
<zho></zho> 
<diy></diy> 
<fas></fas> 
<chy>1</chy> 
<zho_shuoming>暂无</zho_shuoming> 
<diy_shuoming>暂无</diy_shuoming> 
<fas_shuoming>暂无</fas_shuoming> 
<chy_shuoming>短袖衫、短裙、短裤、薄型T恤衫、敞领短袖棉衫</chy_shuoming> 
<pollution_l>优</pollution_l> 
<zwx_l>强</zwx_l> 
<ssd_l>较热</ssd_l> 
<fas_l>暂无</fas_l> 
<zho_l>暂无</zho_l> 
<chy_l>薄短袖类</chy_l> 
<ktk_l>不需要开启</ktk_l> 
<xcz_l>不太适宜</xcz_l> 
<diy_l>暂无</diy_l> 
<pollution_s>非常有利于空气污染物扩散</pollution_s> 
<zwx_s>紫外线强</zwx_s> 
<ssd_s>户外活动不适宜在中午前后展开。</ssd_s> 
<ktk_s>不需要开启空调</ktk_s> 
<xcz_s>洗车后未来1-2天内有降水、大风或沙尘天气，不太适宜洗车</xcz_s> 
<gm>1</gm> 
<gm_l>低发期</gm_l> 
<gm_s>环境温度较高，要提防长时间在空调环境中引发的空调病；</gm_s> 
<yd>5</yd> 
<yd_l>不适宜</yd_l> 
<yd_s>天气炎热，不适宜户外运动；</yd_s> 
<savedate_weather>2015-07-01</savedate_weather> 
<savedate_life>2015-07-01</savedate_life> 
<savedate_zhishu>2015-07-01</savedate_zhishu> 
<udatetime>2015-07-01 07:58:00</udatetime> 
</Weather> 
</Profiles> 
*/ 
private static final long serialVersionUID = 1L; 
private String city; 
private String status1; 
private String status2; 
private String figure1; 
private String figure2; 
private String direction1; 
private String direction2; 
private String power1; 
private String power2; 
private String temperature1; 
private String temperature2; 
private String ssd; 
private String tgd1; 
private String tgd2; 
private String zwx; 
private String ktk; 
private String pollution; 
private String xcz; 
private String zho; 
private String diy; 
private String fas; 
private String chy; 
private String zho_shuoming; 
private String diy_shuoming; 
private String fas_shuoming; 
private String chy_shuoming; 
private String pollution_l; 
private String zwx_l; 
private String ssd_l; 
private String fas_l; 
private String zho_l; 
private String chy_l; 
private String ktk_l; 
private String xcz_l; 
private String diy_l; 
private String pollution_s; 
private String zwx_s; 
private String ssd_s; 
private String ktk_s; 
private String xcz_s; 
private String gm; 
private String gm_l; 
private String gm_s; 
private String yd; 
private String yd_l; 
private String yd_s; 
private String savedate_weather; 
private String savedate_life; 
private String savedate_zhishu; 
private String udatetime; 
public String getCity() { 
return city; 
} 
public void setCity(String city) { 
this.city = city; 
} 
public String getStatus1() { 
return status1; 
} 
public void setStatus1(String status1) { 
this.status1 = status1; 
} 
public String getStatus2() { 
return status2; 
} 
public void setStatus2(String status2) { 
this.status2 = status2; 
} 
public String getFigure1() { 
return figure1; 
} 
public void setFigure1(String figure1) { 
this.figure1 = figure1; 
} 
public String getFigure2() { 
return figure2; 
} 
public void setFigure2(String figure2) { 
this.figure2 = figure2; 
} 
public String getDirection1() { 
return direction1; 
} 
public void setDirection1(String direction1) { 
this.direction1 = direction1; 
} 
public String getDirection2() { 
return direction2; 
} 
public void setDirection2(String direction2) { 
this.direction2 = direction2; 
} 
public String getPower1() { 
return power1; 
} 
public void setPower1(String power1) { 
this.power1 = power1; 
} 
public String getPower2() { 
return power2; 
} 
public void setPower2(String power2) { 
this.power2 = power2; 
} 
public String getTemperature1() { 
return temperature1; 
} 
public void setTemperature1(String temperature1) { 
this.temperature1 = temperature1; 
} 
public String getTemperature2() { 
return temperature2; 
} 
public void setTemperature2(String temperature2) { 
this.temperature2 = temperature2; 
} 
public String getSsd() { 
return ssd; 
} 
public void setSsd(String ssd) { 
this.ssd = ssd; 
} 
public String getTgd1() { 
return tgd1; 
} 
public void setTgd1(String tgd1) { 
this.tgd1 = tgd1; 
} 
public String getTgd2() { 
return tgd2; 
} 
public void setTgd2(String tgd2) { 
this.tgd2 = tgd2; 
} 
public String getZwx() { 
return zwx; 
} 
public void setZwx(String zwx) { 
this.zwx = zwx; 
} 
public String getKtk() { 
return ktk; 
} 
public void setKtk(String ktk) { 
this.ktk = ktk; 
} 
public String getPollution() { 
return pollution; 
} 
public void setPollution(String pollution) { 
this.pollution = pollution; 
} 
public String getXcz() { 
return xcz; 
} 
public void setXcz(String xcz) { 
this.xcz = xcz; 
} 
public String getZho() { 
return zho; 
} 
public void setZho(String zho) { 
this.zho = zho; 
} 
public String getDiy() { 
return diy; 
} 
public void setDiy(String diy) { 
this.diy = diy; 
} 
public String getFas() { 
return fas; 
} 
public void setFas(String fas) { 
this.fas = fas; 
} 
public String getChy() { 
return chy; 
} 
public void setChy(String chy) { 
this.chy = chy; 
} 
public String getZho_shuoming() { 
return zho_shuoming; 
} 
public void setZho_shuoming(String zho_shuoming) { 
this.zho_shuoming = zho_shuoming; 
} 
public String getDiy_shuoming() { 
return diy_shuoming; 
} 
public void setDiy_shuoming(String diy_shuoming) { 
this.diy_shuoming = diy_shuoming; 
} 
public String getFas_shuoming() { 
return fas_shuoming; 
} 
public void setFas_shuoming(String fas_shuoming) { 
this.fas_shuoming = fas_shuoming; 
} 
public String getChy_shuoming() { 
return chy_shuoming; 
} 
public void setChy_shuoming(String chy_shuoming) { 
this.chy_shuoming = chy_shuoming; 
} 
public String getPollution_l() { 
return pollution_l; 
} 
public void setPollution_l(String pollution_l) { 
this.pollution_l = pollution_l; 
} 
public String getZwx_l() { 
return zwx_l; 
} 
public void setZwx_l(String zwx_l) { 
this.zwx_l = zwx_l; 
} 
public String getSsd_l() { 
return ssd_l; 
} 
public void setSsd_l(String ssd_l) { 
this.ssd_l = ssd_l; 
} 
public String getFas_l() { 
return fas_l; 
} 
public void setFas_l(String fas_l) { 
this.fas_l = fas_l; 
} 
public String getZho_l() { 
return zho_l; 
} 
public void setZho_l(String zho_l) { 
this.zho_l = zho_l; 
} 
public String getChy_l() { 
return chy_l; 
} 
public void setChy_l(String chy_l) { 
this.chy_l = chy_l; 
} 
public String getKtk_l() { 
return ktk_l; 
} 
public void setKtk_l(String ktk_l) { 
this.ktk_l = ktk_l; 
} 
public String getXcz_l() { 
return xcz_l; 
} 
public void setXcz_l(String xcz_l) { 
this.xcz_l = xcz_l; 
} 
public String getDiy_l() { 
return diy_l; 
} 
public void setDiy_l(String diy_l) { 
this.diy_l = diy_l; 
} 
public String getPollution_s() { 
return pollution_s; 
} 
public void setPollution_s(String pollution_s) { 
this.pollution_s = pollution_s; 
} 
public String getZwx_s() { 
return zwx_s; 
} 
public void setZwx_s(String zwx_s) { 
this.zwx_s = zwx_s; 
} 
public String getSsd_s() { 
return ssd_s; 
} 
public void setSsd_s(String ssd_s) { 
this.ssd_s = ssd_s; 
} 
public String getKtk_s() { 
return ktk_s; 
} 
public void setKtk_s(String ktk_s) { 
this.ktk_s = ktk_s; 
} 
public String getXcz_s() { 
return xcz_s; 
} 
public void setXcz_s(String xcz_s) { 
this.xcz_s = xcz_s; 
} 
public String getGm() { 
return gm; 
} 
public void setGm(String gm) { 
this.gm = gm; 
} 
public String getGm_l() { 
return gm_l; 
} 
public void setGm_l(String gm_l) { 
this.gm_l = gm_l; 
} 
public String getGm_s() { 
return gm_s; 
} 
public void setGm_s(String gm_s) { 
this.gm_s = gm_s; 
} 
public String getYd() { 
return yd; 
} 
public void setYd(String yd) { 
this.yd = yd; 
} 
public String getYd_l() { 
return yd_l; 
} 
public void setYd_l(String yd_l) { 
this.yd_l = yd_l; 
} 
public String getYd_s() { 
return yd_s; 
} 
public void setYd_s(String yd_s) { 
this.yd_s = yd_s; 
} 
public String getSavedate_weather() { 
return savedate_weather; 
} 
public void setSavedate_weather(String savedate_weather) { 
this.savedate_weather = savedate_weather; 
} 
public String getSavedate_life() { 
return savedate_life; 
} 
public void setSavedate_life(String savedate_life) { 
this.savedate_life = savedate_life; 
} 
public String getSavedate_zhishu() { 
return savedate_zhishu; 
} 
public void setSavedate_zhishu(String savedate_zhishu) { 
this.savedate_zhishu = savedate_zhishu; 
} 
public String getUdatetime() { 
return udatetime; 
} 
public void setUdatetime(String udatetime) { 
this.udatetime = udatetime; 
} 
@Override 
public String toString() { 
return "WeatherInfo [city=" + city + ", status1=" + status1 
+ ", status2=" + status2 + ", figure1=" + figure1 
+ ", figure2=" + figure2 + ", direction1=" + direction1 
+ ", direction2=" + direction2 + ", power1=" + power1 
+ ", power2=" + power2 + ", temperature1=" + temperature1 
+ ", temperature2=" + temperature2 + ", ssd=" + ssd + ", tgd1=" 
+ tgd1 + ", tgd2=" + tgd2 + ", zwx=" + zwx + ", ktk=" + ktk 
+ ", pollution=" + pollution + ", xcz=" + xcz + ", zho=" + zho 
+ ", diy=" + diy + ", fas=" + fas + ", chy=" + chy 
+ ", zho_shuoming=" + zho_shuoming + ", diy_shuoming=" 
+ diy_shuoming + ", fas_shuoming=" + fas_shuoming 
+ ", chy_shuoming=" + chy_shuoming + ", pollution_l=" 
+ pollution_l + ", zwx_l=" + zwx_l + ", ssd_l=" + ssd_l 
+ ", fas_l=" + fas_l + ", zho_l=" + zho_l + ", chy_l=" + chy_l 
+ ", ktk_l=" + ktk_l + ", xcz_l=" + xcz_l + ", diy_l=" + diy_l 
+ ", pollution_s=" + pollution_s + ", zwx_s=" + zwx_s 
+ ", ssd_s=" + ssd_s + ", ktk_s=" + ktk_s + ", xcz_s=" + xcz_s 
+ ", gm=" + gm + ", gm_l=" + gm_l + ", gm_s=" + gm_s + ", yd=" 
+ yd + ", yd_l=" + yd_l + ", yd_s=" + yd_s 
+ ", savedate_weather=" + savedate_weather + ", savedate_life=" 
+ savedate_life + ", savedate_zhishu=" + savedate_zhishu 
+ ", udatetime=" + udatetime + "]"; 
} 
}

过程中遇到的问题：

由于是第一次使用jaxb，对要用到的注解不熟悉，这里再说明一下，
[email protected](name=”xx”) , name值与xml的节点名字相同，
@XmlElement是与xml文档中的节点对应的，@XmlElementxml只能添加在get/set方法上，添加在成员变量上会出现异常。
@xmlattribute是对应xml文档中的属性，比如<node id=”xx”>是对应id的。

原创文章，作者：ItWorker，如若转载，请注明出处：https://blog.ytso.com/20286.html

java 获取新浪天气样例详解编程语言

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