?? abstracttag.java
字號:
/*
* Copyright 1999,2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.taglibs.io;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.Writer;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import javax.servlet.ServletContext;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.BodyContent;
import javax.servlet.jsp.tagext.TagSupport;
/** A useful base class for Tags
*
* @author <a href="mailto:james.strachan@metastuff.com">James Strachan</a>
* @version $Revision: 1.2 $
*/
public class AbstractTag extends TagSupport {
// #### SHOULD MOVE TO LOG4J ASAP
/** Is tracing enabled? */
protected static final boolean TRACE = false;
/** Are warnings enabled? */
protected static final boolean WARN = true;
public AbstractTag() {
}
/** Handles non-JspExceptions thrown in this instance
*/
protected void handleException( Exception e ) throws JspException {
warn( "ERROR: Caught", e );
if ( e instanceof JspException ) {
throw (JspException) e;
}
else {
pageContext.getServletContext().log( e.getMessage(), e );
if ( WARN ) {
warn( "Caught Exception: ", e );
}
throw new JspException( e.getMessage() );
}
}
protected void warn(String text) {
System.out.println( "WARNING: " + text );
//pageContext.getServletContext().log( text );
}
protected void warn(String text, Exception e) {
System.out.println( "WARNING: " + text + e );
//pageContext.getServletContext().log( text + e );
e.printStackTrace();
}
protected void log(String text ) {
System.out.println( text );
//pageContext.getServletContext().log( text );
}
}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -