HttpURLConnection抓取页面资源问题

Question

public class XML { public Document getDoc(String u, String encoding) {
Document doc = null;
try {
URL url = new URL(u);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                            conn.connect();
                            DocumentBuilder dombuilder = builderFactory.newDocumentBuilder();
InputStream in = new BufferedInputStream(conn.getInputStream());
InputStreamReader isr = new InputStreamReader(in,encoding);
InputSource inputSource = new InputSource(isr); doc = dombuilder.parse(inputSource);
} catch (Exception e) {
e.printStackTrace();
}
return doc;
}
  public static void main(String[] args) { 
  
  XML x=new XML();
  String  u = "http://www.p5w.net/stock/hydx/bkfx/index_160.xml";
  x.getDoc(u,"utf-8");
       } 
     
}
出如下异常  一直无法解决  高手帮下忙  谢谢了
[Fatal Error] :206:35: An invalid XML character (Unicode: 0xdf2f) was found in the element content of the document.
org.xml.sax.SAXParseException: An invalid XML character (Unicode: 0xdf2f) was found in the element content of the document.
at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at com.util.XML.getDoc(XML.java:117)（红色部分）
at com.util.XML.main(XML.java:134)

Answer 1

import java.io.BufferedInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.StringReader;
import java.net.HttpURLConnection;
import java.net.URL;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
public class Test {
    public static void main(String[] args) throws Exception{
        String uri="http://www.p5w.net/stock/hydx/bkfx/index_160.xml";
        String encoding="gb2312";
        URL url = new URL(uri);
        System.getProperties().setProperty("http.proxyHost", "172.28.88.2");
        System.getProperties().setProperty("http.proxyPort", "80");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.connect();
        InputStream in = new BufferedInputStream(conn.getInputStream());
        InputStreamReader isr = new InputStreamReader(in,encoding);
        int str=-1;
        StringBuffer sb=new StringBuffer();
        while((str=isr.read())!=-1)
            sb.append((char)str);
        DocumentBuilderFactory dbf=DocumentBuilderFactory.newInstance();
        DocumentBuilder   db   =  dbf.newDocumentBuilder();
        isr.close();
        Document doc=db.parse(new   InputSource(new  StringReader(sb.toString()))); 
        //这生成一个doc类型
               }
}//注意你读取的时候应该用gb2312，那个xml是gb2312的编码格式

Answer 2

嗯  谢谢  这个问题解决了   我想把得到的资源打印出来  就出现这个错误
但是出现新问题：
[Fatal Error] :-1:-1: Premature end of file.
org.xml.sax.SAXParseException: Premature end of file.
at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at com.util.XML.getDoc(XML.java:120)
at com.util.XML.main(XML.java:130)

Answer 3

HTML 不好用XML解析把，不符合XML规范的99%？