?? loghandler.java
字號:
package anni.handler;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.util.Date;
import org.apache.axis.AxisFault;
import org.apache.axis.Handler;
import org.apache.axis.MessageContext;
import org.apache.axis.handlers.BasicHandler;
public class LogHandler extends BasicHandler {
/**
invoke,每一個handler都必須實現的方法。
*/
public void invoke(MessageContext msgContext) throws AxisFault {
//每當web服務被調用,都記錄到log中。
try {
Handler handler = msgContext.getService();
String filename = (String)getOption("filename");
if ((filename == null) || (filename.equals("")))
throw new AxisFault("Server.NoLogFile",
"No log file configured for the LogHandler!",
null, null);
FileOutputStream fos = new FileOutputStream(filename, true);
PrintWriter writer = new PrintWriter(fos);
Integer counter = (Integer)handler.getOption("accesses");
if (counter == null)
counter = new Integer(0);
counter = new Integer(counter.intValue() + 1);
Date date = new Date();
msgContext.getMessage().writeTo(System.out);
String result = "在" + date + ": Web 服務 " +
msgContext.getTargetService() +
" 被調用,現在已經共調用了 " + counter + " 次.";
handler.setOption("accesses", counter);
writer.println(result);
writer.close();
} catch (Exception e) {
throw AxisFault.makeFault(e);
}
}
}
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