Not a iso8859-1 character solution

Package com.iamzken.test;
Import java.io.*;
Import java.util.*;
Import javax.servlet.*;
Import javax.servlet.http.*;
public class Test extends HttpServlet {
public void doget (HttpServletRequest request, httpservletresponse response) throws Servletexception, IOException {
Response.setcontenttype ("TEXT/HTML;CHARSET=GBK");
The first case
PrintWriter out = Response.getwriter ();
OUT.PRINTLN ("------The first situation of the output of Chinese normal------<br>");
Second case
Servletoutputstream out = Response.getoutputstream ();
OUT.PRINTLN ("------The second case output Chinese error but output English normal------<br>");

}

}
The error is as follows:
Type Exception
Message
Description The server encountered an internal error () is prevented it from fulfilling this request.
exception
Java.io.CharConversionException:Not an ISO 8859-1 character: part
Javax.servlet.ServletOutputStream.print (servletoutputstream.java:89)
Javax.servlet.ServletOutputStream.println (servletoutputstream.java:242)
Com.iamzken.test.Test.doGet (helloworldexample1.java:43)
Javax.servlet.http.HttpServlet.service (httpservlet.java:690)
Javax.servlet.http.HttpServlet.service (httpservlet.java:803)
Filters. Setcharacterencodingfilter.dofilter (setcharacterencodingfilter.java:122)
Org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter (monitorfilter.java:196)

Stream outputs a binary stream that does not encode characters: Stream only applies to iso8859-1 encoded characters

Writer output is the text of the information, is carried out after the system code.