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POHow to use log4j to save the output to a file
 

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  1. POHow to use log4j to save the output to a file
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    <p>I have downloaded the log4j jar. But dont know how to use it to save the output to a text file. My code is:</p> <pre><code>import java.io.BufferedReader; import java.io.File; import java.io.IOException; import java.io.PrintWriter; import java.util.Enumeration; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.log4j.Logger; public class ShowHeaders extends HttpServlet { /** * */ private static final long serialVersionUID = 1L; String headerName; String headerValue; public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { response.setContentType("text/plain"); PrintWriter out = response.getWriter(); String method= request.getMethod(); out.println("Request Method: " +method); out.println("-----------------------"); String uri= request.getRequestURI(); out.println("URI: " +uri); out.println("-----------------------"); out.println("Request Headers"); Enumeration&lt;?&gt; Enumeration = (java.util.Enumeration&lt;?&gt;) request.getHeaderNames(); while (Enumeration.hasMoreElements()) { String headerName = (String) Enumeration.nextElement(); String headerValue = request.getHeader(headerName); out.print(""+headerName + ": "); out.println(headerValue + ""); } } </code></pre> <p>Kindly tell me where to describe the file location &amp; what to use instead of out.println(); to display it that text file</p>
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    1. USChetan Potdar
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    1. COWhat? Did you mean `log4j`? Did you bother to read the manual?
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    2. COi am sorry, you are correct its log4j. I have read the documentation manual but i am totally confused on how to use it.
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      1. POHow to use log4j to save the output to a file
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    3. COThis tutorial seems good : http://logging.apache.org/log4j/1.2/manual.html have you read it already ?
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      1. USMarc
 

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