JSP教程《缓存JSP显示的内容》

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缓存JSP显示的内容

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 */

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