?? happyaxis.jsp
字號:
<html><%@ page import="java.io.InputStream, java.io.IOException, javax.xml.parsers.SAXParser, javax.xml.parsers.SAXParserFactory" session="false" %> <% /* * The Apache Software License, Version 1.1 * * Copyright (c) 2002 The Apache Software Foundation. All rights * reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, if * any, must include the following acknowlegement: * "This product includes software developed by the * Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowlegement may appear in the software itself, * if and wherever such third-party acknowlegements normally appear. * * 4. The names "The Jakarta Project", "Ant", and "Apache Software * Foundation" must not be used to endorse or promote products derived * from this software without prior written permission. For written * permission, please contact apache@apache.org. * * 5. Products derived from this software may not be called "Apache" * nor may "Apache" appear in their names without prior written * permission of the Apache Group. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. */%><head><title>Axis Happiness Page</title></head><body bgcolor='#ffffff'><%! /* * Happiness tests for axis. These look at the classpath and warn if things * are missing. Normally addng this much code in a JSP page is mad * but here we want to validate JSP compilation too, and have a drop-in * page for easy re-use * @author Steve 'configuration problems' Loughran * @author dims * @author Brian Ewins */ /** * Get a string providing install information. * TODO: make this platform aware and give specific hints */ public String getInstallHints(HttpServletRequest request) { String hint= "<B><I>Note:</I></B> On Tomcat 4.x and Java1.4, you may need to put libraries that contain " +"java.* or javax.* packages into CATALINA_HOME/common/lib" +"<br>jaxrpc.jar and soap.jar are two such libraries."; return hint; } /** * test for a class existing * @param classname * @return class iff present */ Class classExists(String classname) { try { return Class.forName(classname); } catch (ClassNotFoundException e) { return null; } } /** * test for resource on the classpath * @param resource * @return true iff present */ boolean resourceExists(String resource) { boolean found; InputStream instream=this.getClass().getResourceAsStream(resource); found=instream!=null; if(instream!=null) { try { instream.close(); } catch (IOException e) { } } return found; } /** * probe for a class, print an error message is missing * @param out stream to print stuff * @param category text like "warning" or "error" * @param classname class to look for * @param jarFile where this class comes from * @param errorText extra error text * @param homePage where to d/l the library * @return the number of missing classes * @throws IOException */ int probeClass(JspWriter out, String category, String classname, String jarFile, String description, String errorText, String homePage) throws IOException { try { Class clazz = classExists(classname); if(clazz == null) { String url=""; if(homePage!=null) { url="<br> See <a href="+homePage+">"+homePage+"</a>"; } out.write("<p>"+category+": could not find class "+classname +" from file <b>"+jarFile +"</b><br> "+errorText +url +"<p>"); return 1; } else { String location = getLocation(out, clazz); if(location == null) { out.write("Found "+ description + " (" + classname + ")<br>"); } else { out.write("Found "+ description + " (" + classname + ") at " + location + "<br>"); } return 0; } } catch(NoClassDefFoundError ncdfe) { String url=""; if(homePage!=null) { url="<br> See <a href="+homePage+">"+homePage+"</a>"; } out.write("<p>"+category+": could not find a dependency" +" of class "+classname +" from file <b>"+jarFile +"</b><br> "+errorText +url +"<br>The root cause was: "+ncdfe.getMessage() +"<br>This can happen e.g. if "+classname+" is in" +" the 'common' classpath, but a dependency like " +" activation.jar is only in the webapp classpath." +"<p>"); return 1; } } /** * get the location of a class * @param out * @param clazz * @return the jar file or path where a class was found */ String getLocation(JspWriter out, Class clazz) { try { java.net.URL url = clazz.getProtectionDomain().getCodeSource().getLocation(); String location = url.toString(); if(location.startsWith("jar")) { url = ((java.net.JarURLConnection)url.openConnection()).getJarFileURL(); location = url.toString(); } if(location.startsWith("file")) { java.io.File file = new java.io.File(url.getFile()); return file.getAbsolutePath(); } else { return url.toString(); } } catch (Throwable t){ } return "an unknown location"; } /** * a class we need if a class is missing * @param out stream to print stuff * @param classname class to look for * @param jarFile where this class comes from * @param errorText extra error text * @param homePage where to d/l the library * @throws IOException when needed * @return the number of missing libraries (0 or 1) */ int needClass(JspWriter out, String classname, String jarFile, String description, String errorText, String homePage) throws IOException { return probeClass(out, "<b>Error</b>", classname, jarFile, description, errorText, homePage); } /** * print warning message if a class is missing * @param out stream to print stuff * @param classname class to look for * @param jarFile where this class comes from * @param errorText extra error text * @param homePage where to d/l the library * @throws IOException when needed * @return the number of missing libraries (0 or 1) */ int wantClass(JspWriter out, String classname, String jarFile, String description, String errorText, String homePage) throws IOException { return probeClass(out, "<b>Warning</b>", classname, jarFile, description, errorText, homePage); } /** * probe for a resource existing, * @param out * @param resource?? 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 + -