Question

java进:javaSE urlConnection.getInputStream() 乱码

代码如下:import java.net.URL;import java.net.URLConnection;import java.util.*;import java.io.IOException;public class TestgetHtml {   public static void main(String[] args) {    StringBuffer allText=new  StringBuffer("");   StringBuffer tempPage=new StringBuffer("");       String temper ="";       String str="";       try {                                  for(int i=1;i<10;i++){            URL url = new URL("http://某静态网页编码是utf-8.html");                  URLConnection connection = url.openConnection();                   connection.setRequestProperty("Content-Type", "text/html;charset=utf-8");                 connection.connect();                    // print header fields                   Scanner in = new Scanner(connection.getInputStream());                   // print first ten lines of contents                                     for (int n = 30; in.hasNextLine() && n <= 1000; n++) {                          tempPage.append(in.nextLine());                   }                  // System.out.println("in");                  //tempPage.subSequence(tempPage.indexOf("<tr"), tempPage.indexOf("</table>"));                  temper=tempPage.toString();                  allText.append(temper);                  tempPage=new StringBuffer("");             }             System.out.println(allText);                            } catch (IOException e) {               // TODO Auto-generated catch block               e.printStackTrace();        }        } }目标页面使用的utf-8, java控制台程序是utf-8还是latin-1呢?如何获得网页上的中文数据,也就是如何解决这种乱码问题? 

Answer 1

private String contentType = "text/xml;charset=utf-8";
private String cacheControl = "no-cache";
private boolean doOutPut = true;
private int connectTimeout = 5000;

public String getRs(String url) throws Exception {
if(null==url||url.equals(""))
throw new IllegalArgumentException("url参数为空");
StringBuilder resultXml = new StringBuilder();
try {
URLConnection urlConn = (new URL(url)).openConnection();
urlConn.setConnectTimeout(connectTimeout);
urlConn.setDoOutput(doOutPut);
urlConn.setRequestProperty("Content-Type", contentType);
urlConn.setRequestProperty("Cache-Control", cacheControl);
urlConn.connect();
BufferedReader br = new BufferedReader(new InputStreamReader(urlConn.getInputStream(),"utf-8"));
String line;
while ((line = br.readLine()) != null) {
System.out.println(line);
resultXml.append(line);
}
} catch (MalformedURLException mue) {
throw new IllegalArgumentException("url参数'"+url+"'解析失败:"+mue.getMessage());
} catch (IOException ioe) {
throw ioe;
} catch (Exception e) {
throw e;
}
return resultXml.toString();
}

仅供参考 BufferedReader br = new BufferedReader(new InputStreamReader(urlConn.getInputStream(),"utf-8"));