JAVAWEB天气预报 中国气象网API（WebServices）

根据城市或地区名称查询获得未来三天内天气情况、现在的天气实况、天气和生活指数

方法名：getWeatherbyCityName

有多种请求方式，本文使用的是SOAP1.1

该链接有SOAP1.2、GEY、POST等其它请求方式

http://www.webxml.com.cn/WebServices/WeatherWebService.asmx?op=getWeatherbyCityName

1、

package com.lhh.servlet;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.lhh.comm.util.WeatherReport;


public class WeatherServlet extends HttpServlet {

	private static final long serialVersionUID = 1L;

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		//设置request编码
		request.setCharacterEncoding("UTF-8");
		//获取查询的城市
		String city = request.getParameter("city");
		String info = WeatherReport.getWeather(city);
		request.setAttribute("info", info);
		request.getRequestDispatcher("/weatherInfo.jsp").forward(request, response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		
		this.doGet(request, response);
	}

}

2、

package com.lhh.comm.util;

import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.URL;
import java.net.URLConnection;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class WeatherReport {
	/**
	 * 获取SOAP的请求头，并替换其中的标志符号为用户输入的城市
	 * 
	 * 
	 * @param city
	 *            用户输入的城市名称
	 * @return 客户将要发送给服务器的SOAP请求
	 */
	private static String getSoapRequest(String city) {
		StringBuilder sb = new StringBuilder();
		sb
				.append("<?xml version="1.0" encoding="utf-8"?>"
						+ "<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" "
						+ "xmlns:xsd="http://www.w3.org/2001/XMLSchema" "
						+ "xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">"
						+ "<soap:Body>    <getWeatherbyCityName xmlns="http://WebXml.com.cn/">"
						+ "<theCityName>" + city
						+ "</theCityName>    </getWeatherbyCityName>"
						+ "</soap:Body></soap:Envelope>");
		return sb.toString();
	}

	/**
	 * 用户把SOAP请求发送给服务器端，并返回服务器点返回的输入流
	 * 
	 * 
	 * @param city
	 *            用户输入的城市名称
	 * @return 服务器端返回的输入流，供客户端读取
	 * @throws Exception
	 */
	private static InputStream getSoapInputStream(String city) throws Exception {
		try {
			String soap = getSoapRequest(city);
			if (soap == null) {
				return null;
			}
			URL url = new URL(
					"http://www.webxml.com.cn/WebServices/WeatherWebService.asmx");
			URLConnection conn = url.openConnection();
			conn.setUseCaches(false);
			conn.setDoInput(true);
			conn.setDoOutput(true);

			conn.setRequestProperty("Content-Length", Integer.toString(soap
					.length()));
			conn.setRequestProperty("Content-Type", "text/xml; charset=utf-8");
			conn.setRequestProperty("SOAPAction",
					"http://WebXml.com.cn/getWeatherbyCityName");

			OutputStream os = conn.getOutputStream();
			OutputStreamWriter osw = new OutputStreamWriter(os, "utf-8");
			osw.write(soap);
			osw.flush();
			osw.close();

			InputStream is = conn.getInputStream();
			return is;
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}

	/**
	 * 对服务器端返回的XML进行解析
	 * 
	 * 
	 * @param city
	 *            用户输入的城市名称
	 * @return 字符串 用,分割
	 */
	public static String getWeather(String city) {
		try {
			Document doc;
			DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
			dbf.setNamespaceAware(true);
			DocumentBuilder db = dbf.newDocumentBuilder();
			InputStream is = getSoapInputStream(city);
			doc = db.parse(is);
			NodeList nl = doc.getElementsByTagName("string");
			StringBuffer sb = new StringBuffer();
			for (int count = 0; count < nl.getLength(); count++) {
				Node n = nl.item(count);
				if(n.getFirstChild().getNodeValue().equals("查询结果为空！")) {
					sb = new StringBuffer("#") ;
					break ;
				}
				sb.append(n.getFirstChild().getNodeValue() + "#
");
			}
			is.close();
			return sb.toString();
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}

	
	public static void main(String[] args) throws Exception {
		System.out.println(getWeather("福州"));
		System.out.println("po&oi".split("&").length) ;
		System.out.println("##".split("#").length) ;
	}
}

3、tianqi.jsp

<%@ page language="java" pageEncoding="UTF-8" contentType="text/html; charset=UTF-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>天气预报查询</title>
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->
  </head>
  
  <body>
  <form action="WeatherServlet" method="POST" target="_blank">
   	<input type="text" id="city" name="city"/>
   	<input type="submit" value="查询"/>
   	</form>
  </body>
</html>

4、weatherInfo.jsp

<pre name="code" class="html"><%@ page language="java" pageEncoding="UTF-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    
    <title>城市天气信息</title>
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->

  </head>
  
  <body>
    <% 
    String info = (String) request.getAttribute("info") ; 
    
    if(info.equals("#")) {
    %>
    <h1>该城市暂不被支持天气预报服务</h1>
    <%
    } else {
    String[] infos = info.split("#") ; 
    %>
    
    
    <table border="1">
     <tr>
     <td colspan="3">
     <strong><font color="blue">72小时天气预报</font>---
     <font color="red">
     <!-- 城市名称 -->
     <%=infos[0]%>   <%=infos[1]%>
     </font>
     <font size="-1">
     <%=infos[4] %>发布
     </font>
     </strong>
     </td>
     </tr>
     <tr align="center">
     <td>
     <table>
     <tr align="center">
     <!-- 日期 -->
     <td>
     <font size="-1">
     <%=infos[6] %>
     </font>
     </td>
     </tr>
     <tr align="center">
     <!-- 天气图标 -->
     <td>
     <img src="tqimgs/a_<%=infos[8]%>" />
     <img src="tqimgs/a_<%=infos[9]%>" />
     </td>
     </tr>
     <tr align="center">
     <!-- 天气细则 -->
     <td>
     <font size="-1">
     <%=infos[5] %><br>
     <%=infos[7] %><br>
     </font>
     </td>
     </tr>
     </table>
     </td>
     
     
     <td>
     <table align="center">
     <tr align="center">
     <td>
     <!-- 第二天的时间 -->
     <font size="-1">
     <%=infos[13] %>
     </font>
     </td>
     </tr>
     
     <tr align="center">
     <td>
     <!-- 第二天的天气图标 -->
     <img src="tqimgs/a_<%=infos[15]%>">
     <img src="tqimgs/a_<%=infos[16]%>">
	</td>
     </tr>
     
     <tr align="center">
     <td>
     <!-- 第二天的天气细则 -->
     <font size="-1">
     <%=infos[12] %><br>
     <%=infos[14] %><br>
     </font>
     </td>
     </tr>
     </table>
     </td>
     
     
     <td>
     <table align="center">
     <tr align="center">
     <td>
     <!-- 第三天的天气时间 -->
    	<font size="-1">
     <%=infos[18] %>
     </font>
		</td>
     </tr>
     
     <tr align="center">
     <td>
     <!-- 第三天的天气图标 -->
     <img src="tqimgs/a_<%=infos[20]%>" />
     <img src="tqimgs/a_<%=infos[21]%>" />
     </td>
     </tr>
     <tr align="center">
     <td>
     <!-- 第三天的天气细则 -->
     <font size="-1">
     <%=infos[17] %><br>
     <%=infos[19] %><br>
     </font>
     </td>
     </tr>
     </table>
     </td>
		 </tr>
		 <tr>
		 <td colspan="3">
		 <!-- 居家指数 -->
		 <strong><font color="blue">温馨提醒</font></strong>
		 </td>
		 </tr>
		 <tr>
		 <td colspan="3">
		 
		 <table>
		 <tr>
		 <td>
		 <img src="tqimgs/sun.gif" />
		 </td>
		 <td>
		 <font size="-1">
		 <%=infos[10] %>
		 </font>
		 </td>
		 </tr>
		 </table>
		 
		 
		 </td>
		 </tr>
		 <tr>
		 <td colspan="3">
		 
		  
		  <%
		  String str = "" ;
		  String s1 = "" ;
		  String s1Content = "" ;
		  String s2 = "" ;
		  String s2Content = "" ;
		  String s3 = "" ;
		  String s3Content = "" ;
		  String s4 = "" ;
		  String s4Content = "" ;
		  String s5 = "" ;
		  String s5Content = "" ;
		  String s6 = "" ;
		  String s6Content = "" ;
		  String s7 = "" ;
		  String s7Content = "" ;
		  try {
		  	//这里开始进行具体详细测试
		  str = infos[11] ;
		  //穿衣指数
		  s1 = str.substring(str.indexOf("穿衣指数："),str.indexOf("穿衣指数：")+4) ;
		  s1Content = str.substring(str.indexOf("穿衣指数：")+5,str.indexOf("感冒指数：")) ;
		  //感冒指数
		  s2 = str.substring(str.indexOf("感冒指数："),str.indexOf("感冒指数：")+4) ;
		  s2Content = str.substring(str.indexOf("感冒指数：")+5,str.indexOf("晨练指数：")) ;
		  
		  //晨练指数
		  s3 = str.substring(str.indexOf("晨练指数："),str.indexOf("晨练指数：")+4) ;
		  s3Content = str.substring(str.indexOf("晨练指数：")+5,str.indexOf("交通指数：")) ;
		  //交通指数
		  s7 = str.substring(str.indexOf("交通指数："),str.indexOf("交通指数：")+4) ;
		  s7Content = str.substring(str.indexOf("交通指数：")+5,str.indexOf("中暑指数：")) ;
		  //中暑指数
		  s4 = str.substring(str.indexOf("中暑指数："),str.indexOf("中暑指数：")+4) ;
		  s4Content = str.substring(str.indexOf("中暑指数：")+5,str.indexOf("防晒指数：")) ;
		  //防晒指数
		  s5 = str.substring(str.indexOf("防晒指数："),str.indexOf("防晒指数：")+4) ;
		  s5Content = str.substring(str.indexOf("防晒指数：")+5,str.indexOf("旅行指数：")) ;
		  //旅行指数
		  s6 = str.substring(str.indexOf("旅行指数："),str.indexOf("旅行指数：")+4) ;
		  s6Content = str.substring(str.indexOf("旅行指数：")+5) ;
		  %>
		  
		   <table>
		 <tr>
		 <td width="50">
		 <img src="tqimgs/zhishu_01.gif" />
		 </td>
		 <td>
		 <strong>
		 <font size="-1">
		 <%=s1 %> 
		 </font>
		 </strong>
		 </td>
		 <td>
		 <font size="-1">
		 <%=s1Content %>
		 </font>
		 </td>
		 </tr>
		 
		 
		 <tr>
		 <td width="50">
		 <img src="tqimgs/zhishu_20.gif" />
		 </td>
		 <td>
		 <strong>
		 <font size="-1">
		 <%=s2 %> 
		 </font>
		 </strong>
		 </td>
		 <td>
		 <font size="-1">
		 <%=s2Content %>
		 </font>
		 </td>
		 </tr>
		 
		 <tr>
		 <td width="50">
		 <img src="tqimgs/zhishu_03.gif" />
		 </td>
		 <td>
		 <strong>
		 <font size="-1">
		 <%=s3 %> 
		 </font>
		 </strong>
		 </td>
		 <td>
		 <font size="-1">
		 <%=s3Content %>
		 </font>
		 </td>
		 </tr>
		 
		 <tr>
		 <td width="50">
		 <img src="tqimgs/zhishu_22.gif" />
		 </td>
		 <td>
		 <strong>
		 <font size="-1">
		 <%=s4 %> 
		 </font>
		 </strong>
		 </td>
		 <td>
		 <font size="-1">
		 <%=s4Content %>
		 </font>
		 </td>
		 </tr>
		 
		 
		 <tr>
		 <td width="50">
		 <img src="tqimgs/zhishu_07.gif" />
		 </td>
		 <td>
		 <strong>
		 <font size="-1">
		 <%=s5 %> 
		 </font>
		 </strong>
		 </td>
		 <td>
		 <font size="-1">
		 <%=s5Content %>
		 </font>
		 </td>
		 </tr>
		 
		 
		 <tr>
		 <td width="50">
		 <img src="tqimgs/zhishu_31.gif" />
		 </td>
		 <td>
		 <strong>
		 <font size="-1">
		 <%=s6 %> 
		 </font>
		 </strong>
		 </td>
		 <td>
		 <font size="-1">
		 <%=s6Content %>
		 </font>
		 </td>
		 </tr>
		 
		 
		 
		 <tr>
		 <td width="50">
		 <img src="tqimgs/zhishu_11.gif" />
		 </td>
		 <td>
		 <strong>
		 <font size="-1">
		 <%=s7 %> 
		 </font>
		 </strong>
		 </td>
		 <td>
		 <font size="-1">
		 <%=s7Content %>
		 </font>
		 </td>
		 </tr>
		 
		 
		 </table>
		 
		 
		 </td>
		 </tr>
     </table>
		  
		  
		  <%
		  } catch(Exception e) {		  	
		  }		  

		   %>  
    <%
    }     
     %>
 

</body>
</html>

天气图片包下载地址http://www.webxml.com.cn/images/weather.zip