JSP顯示內容緩衝技巧（二）

附件原始碼

　　不過採用resin伺服器的話，以上代碼會失效。因為resin沒有實現getWriter方法，而是採用getOutputStream取而代之，所以必須修改些代碼來迎合resin運行環境：

/** * START File FileCaptureResponseWrapper.java */ package com.junjing.filter; import javax.servlet.*; import javax.servlet.http.*; import java.io.*; public class FileCaptureResponseWrapper 　extends HttpServletResponseWrapper { 　private CharArrayWriter output; 　public String toString() 　{ 　　return output.toString(); 　} 　public FileCaptureResponseWrapper(HttpServletResponse response) 　{ 　　super(response); 　　output = new CharArrayWriter(); 　} 　public PrintWriter getWriter() 　{ 　　return new PrintWriter(output); 　} 　public void writeFile(String fileName) 　 throws IOException 　{ 　　FileWriter fw = new FileWriter(fileName); 　　fw.write( output.toString()); 　　fw.close(); 　} 　public ServletOutputStream getOutputStream() 　　throws java.io.IOException 　　{ 　　　return new ServletOutputStream(); 　　} 　public void write(int b) 　 throws IOException 　{ 　　output.write(b); 　} 　public void write(byte b[]) 　 throws IOException 　{ 　　output.write(new String(b,"GBK")); 　} 　public void write(byte b[], int off, int len) 　 throws IOException 　{ 　　output.write(new String(b, off, len)); 　} }; } 　public void writeResponse(PrintWriter out) 　{ 　　out.print(output.toCharArray()); 　} } /** * END File FileCaptureResponseWrapper.java */