package org.main;
import java.io.bufferedwriter;
import java.io.fileoutputstream;
import java.io.ioexception;
import java.io.inputstream;
import java.io.outputstreamwriter;
import java.util.hashmap;
import java.util.iterator;
import java.util.list;
import java.util.map;
import java.util.zip.gzipinputstream;
import org.apache.http.httpentity;
import org.apache.http.httpresponse;
import org.apache.http.client.clientprotocolexception;
import org.apache.http.client.methods.httpget;
import org.apache.http.impl.client.defaulthttpclient;
import org.dom4j.document;
import org.dom4j.element;
import org.dom4j.io.saxreader;
public class demo {
public static gzipinputstream getreponse(string _url) throws clientprotocolexception, ioexception
{
defaulthttpclient httpclient = new defaulthttpclient();
httpget httpget = new httpget(_url);
httpresponse response = httpclient.execute(httpget);
httpentity entity = response.getentity();
inputstream inputs=entity.getcontent();
gzipinputstream in = new gzipinputstream(inputs);
return in;
}
@suppresswarnings(rawtypes)
public static void main(string[] args) throws exception {
map map = new hashmap();
saxreader reader = new saxreader();
document document = reader.read(getreponse(http://wthrcdn.etouch.cn/weatherapi?city=%e9%95%bf%e6%98%a5));
// 得到xml根元素
element root = document.getrootelement();
// 得到根元素的所有子节点
list elementlist = root.elements();
iterator forecast = root.elementiterator(forecast);
if (forecast.hasnext()) {
element recordeless = (element) forecast.next();
iterator weather = recordeless.elementiterator(weather);
element weathernode = (element) weather.next();
system.out.println();
system.out.println(date + : + weathernode.elementtexttrim(date));
system.out.println(high + : + weathernode.elementtexttrim(high));
system.out.println(low + : + weathernode.elementtexttrim(low));
iterator weathernodechild = weathernode.elementiterator(day);
element daynode = (element) weathernodechild.next();
system.out.println();
system.out.println(type + : + daynode.elementtexttrim(type));
system.out.println(fengxiang + : + daynode.elementtexttrim(fengxiang));
system.out.println(fengli + : + daynode.elementtexttrim(fengli));
}
iterator zhishus = root.elementiterator(zhishus);
while(zhishus.hasnext()) {
element zhishusnode = (element) zhishus.next();
iterator zhishu = zhishusnode.elementiterator(zhishu);
while(zhishu.hasnext()) {
element zhishunode = (element) zhishu.next();
system.out.println();
system.out.println(name + : + zhishunode.elementtexttrim(name));
system.out.println(value + : + zhishunode.elementtexttrim(value));
system.out.println(detail + : + zhishunode.elementtexttrim(detail));
}
}
}
}
最近给一个公众平台做一个天气查询的功能，原理就是从接口获取数据然后返回给用户。这里使用的接口返回的是xml类型的数据。于是使用dom4j解析。
本来想着使用document document = reader.read();
然后他的参数是一个input流，就想着如何把get请求到的resp转换为流，也上网查了一些相关资料，发现比较扯，，，自己搞吧... 先从
httpget httpget = new httpget(_url);
httpresponse response = httpclient.execute(httpget);
httpentity entity = response.getentity();
inputstream inputs=entity.getcontent();
这里得到resp的返回流，直接传给reader.read();方法，发现报错说是编码错误。。。一脸懵逼，因为直接通过浏览器访问就是utf-8编码啊，卧槽什么鬼。。。
后来使用entity.getcontentencoding() 打印 发现是返回流是gzip编码......ri...
使用java自带的解压解一下压就好了....
gzipinputstream in = new gzipinputstream(inputs);
本文出自 “theaurorasec” 博客，请务必保留此出处http://aurorasec.blog.51cto.com/9752323/1859599
