How to set HTML encoding in HTMLLayout in logback?
By default logback only produces the following header for HTML log files:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Logback Log Messages</title>
<style type="text/css">
</style>
</head>
But encoding here is not set. And some browsers default encoding to something they want like 'windows-1251' or 'ISO-8859-1' or 'ISO-8859-5'.
How do I add something like
<meta http-equiv="Content-Type" con开发者_如何学Ctent="text/html; charset=utf-16">
to HTML header? Also since all strings in Java are UTF-16, shouldn't this be permanently set in logback source code?
Is there any way to do it via logback configuration file or should I create my own HTMLLayout descendant?
You couldn't set "head" tag,but you can extend "HTMLLayout",such example:
public class CustomizationHTMLLayout extends HTMLLayoutBase<ILoggingEvent>{
@Override
public String getFileHeader()
{
StringBuilder sbuf = new StringBuilder();
sbuf.append("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\"");
sbuf.append(" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">");
sbuf.append(LINE_SEPARATOR);
sbuf.append("<html>");
sbuf.append(LINE_SEPARATOR);
sbuf.append(" <head>");
sbuf.append(LINE_SEPARATOR);
// customization code
sbuf.append(" <meta charset=\"utf-8\">");
sbuf.append(LINE_SEPARATOR);
// customization code
sbuf.append(" <meta http-equiv=\"content-type\" content=\"text/html; charset=utf-8\">");
sbuf.append(LINE_SEPARATOR);
sbuf.append(" <title>");
sbuf.append(title);
sbuf.append("</title>");
sbuf.append(LINE_SEPARATOR);
cssBuilder.addCss(sbuf);
sbuf.append(LINE_SEPARATOR);
sbuf.append(" </head>");
sbuf.append(LINE_SEPARATOR);
sbuf.append("<body>");
sbuf.append(LINE_SEPARATOR);
return sbuf.toString();
}
}
if you use xml configraution , change "layout" tag,use your class
<layout class="CustomizationHTMLLayout">
It appears from the javadocs that no such option exists, but check the source to be certain. Logback is still a moving target until 1.0.
If you find it is not present, then raise a bug in the logback JIRA instance -- http://jira.qos.ch/secure/Dashboard.jspa - and ask for it, or submit a patch that adds the functionality.
加载中,请稍侯......
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