1、繁体字转换工具
用来处理GB2312/BIG5码字符互相转换的类.可到网上搜索
2、filter拦截方法
public class FileCaptureResponseWrapper extends HttpServletResponseWrapper ...{
public static final int OT_NONE = 0, OT_WRITER = 1, OT_STREAM = 2;
private int outputType = OT_NONE;
private ServletOutputStream output = null;
private PrintWriter writer = null;
private ByteArrayOutputStream buffer = null;
public FileCaptureResponseWrapper(HttpServletResponse resp) throws IOException ...{
super(resp);
buffer = new ByteArrayOutputStream();
}
public PrintWriter getWriter() throws IOException ...{
if(outputType==OT_STREAM)
throw new IllegalStateException();
else if(outputType==OT_WRITER)
return writer;
else ...{
outputType = OT_WRITER;
writer = new PrintWriter(new OutputStreamWriter(buffer, getCharacterEncoding()));
return writer;
}
}
public ServletOutputStream getOutputStream() throws IOException ...{
if(outputType==OT_WRITER)
throw new IllegalStateException();
else if(outputType==OT_STREAM)
return output;
else ...{
outputType = OT_STREAM;
output = new WrappedOutputStream(buffer);
return output;
}
}
public void flushBuffer() throws IOException ...{
if(outputType==OT_WRITER)
writer.flush();
if(outputType==OT_STREAM)
output.flush();
}
public void reset() ...{
outputType = OT_NONE;
buffer.reset();
}
public byte[] toByteArray() throws IOException ...{
flushBuffer();
return buffer.toByteArray();
}
}
class WrappedOutputStream extends ServletOutputStream ...{
private ByteArrayOutputStream buffer;
public WrappedOutputStream(ByteArrayOutputStream buffer) ...{
this.buffer = buffer;
}
public void write(int b) throws IOException ...{
buffer.write(b);
}
public byte[] toByteArray() ...{
return buffer.toByteArray();
}
}
3、web.xml配置
GbAndBig5Filter zeal.util.GbAndBig5Filter GbAndBig5Filter *.shtml GbAndBig5Filter *.jsp GbAndBig5Filter *.html GbAndBig5Filter *.htm
4、过滤器
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException,
ServletException ...{
HttpServletRequest httpRequest = (HttpServletRequest) request;
HttpServletResponse httpResponse = (HttpServletResponse) response;
FileCaptureResponseWrapper wrapperResponse = new FileCaptureResponseWrapper(httpResponse);
chain.doFilter(httpRequest, wrapperResponse);
byte[] bytes=wrapperResponse.toByteArray();
String s="";
try ...{
s = new String(GB2Big5.getInstance().gb2big5(bytes,"UTF-8"), "BIG5");
} catch (Exception e) ...{
e.printStackTrace();
}
// response.setContentType("text/html;charset=UTF-8");
PrintWriter pr = response.getWriter();
pr.print(s);
pr.flush();
pr.close();
}