Code download: https://download.csdn.net/download/sinat_36710456/10369688
1. Description
Reprint the webService address of the weather forecast used in this blog:
http://www.webxml.com.cn/WebServices/WeatherWebService.asmx
Now changed to: http://www.webxml.com.cn/WebServices/WeatherWS.asmx?wsdl
2. Examples and descriptions of relevant information invocation
1. Create a new java class: WeatherUtil.java
package com.test.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 WeatherUtil {
/**
* Parse the XML file stream returned by the server
*
* @param city the city name entered by the user
* @return string is split with #
*/
public String getWeather(String city) {
try {
//Use Dom parsing
Document doc;
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
DocumentBuilder db = dbf.newDocumentBuilder();
//Get the stream returned after calling the interface
InputStream is = getSoapInputStream(city);
doc = db.parse(is);
//The element tag of xml is "<string>value 1</string><string>value 2</string>..."
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("The query result is empty!")) {
sb = new StringBuffer("#") ;
break ;
}
//Parse and use "#" as the delimiter, splicing and returning the result
sb.append(n.getFirstChild().getNodeValue() + "#");
}
is.close();
return sb.toString();
} catch (Exception e) {
e.printStackTrace ();
return null;
}
}
/*
* The user sends the SOAP request to the server and returns the input stream returned by the server
*
* @param city the city name entered by the user
* @return the input stream returned by the server for the client to read
* @throws Exception
* @Note: There are four request header formats: 1. SOAP 1.1; 2. SOAP 1.2; 3. HTTP GET; 4. HTTP POST
* 参考---》http://www.webxml.com.cn/WebServices/WeatherWebService.asmx?op=getWeatherbyCityName
*/
private InputStream getSoapInputStream(String city) throws Exception {
try {
// get request specification
String soap = getSoapRequest(city);
if (soap == null) {
return null;
}
//Called weather forecast webserviceURL
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");
//The interface method called is " getWeatherbyCityName "
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 ();
//Get the stream returned by webserivce
InputStream is = conn.getInputStream();
return is;
} catch (Exception e) {
e.printStackTrace ();
return null;
}
}
/*
* Get the SOAP request header and replace the glyph with the city entered by the user
*
* @param city: the city name entered by the user
* @return the SOAP request specification that the client will send to the server
* @Note: There are four request header formats: 1. SOAP 1.1; 2. SOAP 1.2; 3. HTTP GET; 4. HTTP POST
* 参考---》http://www.webxml.com.cn/WebServices/WeatherWebService.asmx?op=getWeatherbyCityName
* This article uses: SOAP 1.1 format
*/
private 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();
}
}
Note: The xml file returned by webservice is as follows
2. Create a new test class: TestWeather.java
package com.util;
import com.test.util.WeatherUtil;
public class TestWeather {
/**
* test
*/
public static void main(String[] args) throws Exception {
WeatherUtil weath=new WeatherUtil();
//查看城市：济南
String weather=weath.getWeather("济南");
String len[]=weather.split("#");
for(int i=0;i<len.length-1;i++){
System.out.println(len[i]);
}
/**
* 打印结果：
* 山东
* 济南
* 54823
* 54823.jpg
* 2016-3-5 13:52:01
* 4℃/14℃
* 3月5日 多云转晴
* 北风3-4级转南风微风
* 1.gif
* 0.gif
* 今日天气实况：气温：12℃；风向/风力：东北风 2级；湿度：23%；紫外线强度：弱。空气质量：良。
* 紫外线指数：弱，辐射较弱，涂擦SPF12-15、PA+护肤品。
感冒指数：极易发，强降温，湿度较大，极易感冒。
穿衣指数：较冷，建议着厚外套加毛衣等服装。
洗车指数：较适宜，无雨且风力较小，易保持清洁度。
交通指数：良好，气象条件良好，车辆可以正常行驶。
空气污染指数：良，气象条件有利于空气污染物扩散。
* 7℃/17℃
* 3月6日 多云
* 南风微风
* 1.gif
* 1.gif
* 4℃/16℃
* 3月7日 多云
* 南风微风转北风3-4级
* 1.gif
* 1.gif
*/}
}
三、以上代码已经测试通过，可以直接根据需要改动并使用