📄 happyaxis.jsp
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<html><%@ page contentType="text/html; charset=utf-8" import="java.io.InputStream, java.io.IOException, javax.xml.parsers.SAXParser, java.lang.reflect.*, javax.xml.parsers.SAXParserFactory" session="false" %><%/* * Copyright 2002,2004,2005 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. */%><%! /* * 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 */ /** * 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=getMessage("seeHomepage",homePage,homePage); } out.write(getMessage("couldNotFound",category,classname,jarFile,errorText,url)); return 1; } else { String location = getLocation(out, clazz); if(location == null) { out.write("<li>"+getMessage("foundClass00",description,classname)+"</li><br>"); } else { out.write("<li>"+getMessage("foundClass01",description,classname,location)+"</li><br>"); } return 0; } } catch(NoClassDefFoundError ncdfe) { String url=""; if(homePage!=null) { url=getMessage("seeHomepage",homePage,homePage); } out.write(getMessage("couldNotFoundDep",category, classname, errorText, url)); out.write(getMessage("theRootCause",ncdfe.getMessage(), classname)); 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 getMessage("classFoundError"); } /** * 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>"+getMessage("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>"+getMessage("warning")+"</b>", classname, jarFile, description, errorText, homePage); } /** * get servlet version string * */ public String getServletVersion() { ServletContext context=getServletConfig().getServletContext(); int major = context.getMajorVersion(); int minor = context.getMinorVersion(); return Integer.toString(major) + '.' + Integer.toString(minor); } /** * what parser are we using. * @return the classname of the parser */ private String getParserName() { SAXParser saxParser = getSAXParser(); if (saxParser == null) { return getMessage("couldNotCreateParser"); } // check to what is in the classname String saxParserName = saxParser.getClass().getName(); return saxParserName; } /** * Create a JAXP SAXParser * @return parser or null for trouble */ private SAXParser getSAXParser() { SAXParserFactory saxParserFactory = SAXParserFactory.newInstance(); if (saxParserFactory == null) { return null; } SAXParser saxParser = null; try { saxParser = saxParserFactory.newSAXParser(); } catch (Exception e) { } return saxParser; } /** * get the location of the parser * @return path or null for trouble in tracking it down */ private String getParserLocation(JspWriter out) { SAXParser saxParser = getSAXParser(); if (saxParser == null) { return null; } String location = getLocation(out,saxParser.getClass()); return location; } /** * Check if class implements specified interface. * @param Class clazz * @param String interface name * @return boolean */ private boolean implementsInterface(Class clazz, String interfaceName) { if (clazz == null) { return false; } Class[] interfaces = clazz.getInterfaces(); if (interfaces.length != 0) { for (int i = 0; i < interfaces.length; i++) { if (interfaces[i].getName().equals(interfaceName)) { return true; } } } return false; } %><%@ include file="i18nLib.jsp" %><% // initialize a private HttpServletRequest setRequest(request); // set a resouce base setResouceBase("i18n");%><head><title><%= getMessage("pageTitle") %></title></head><body bgcolor='#ffffff'><% out.print("<h1>"+ getMessage("pageTitle") +"</h1>"); out.print("<h2>"+ getMessage("pageRole") +"</h2><p/>");%><%= getLocaleChoice() %><% out.print("<h3>"+ getMessage("neededComponents") +"</h3>");%><UL><% int needed=0,wanted=0; /** * the essentials, without these Axis is not going to work */ // need to check if the available version of SAAJ API meets requirements String className = "javax.xml.soap.SOAPPart"; String interfaceName = "org.w3c.dom.Document"; Class clazz = classExists(className); if (clazz == null || implementsInterface(clazz, interfaceName)) { needed = needClass(out, "javax.xml.soap.SOAPMessage", "saaj.jar", "SAAJ API", getMessage("criticalErrorMessage"), "http://ws.apache.org/axis/"); } else { String location = getLocation(out, clazz); out.print(getMessage("invalidSAAJ",location)); out.print(getMessage("criticalErrorMessage")); out.print(getMessage("seeHomepage","http://ws.apache.org/axis/java/install.html",getMessage("axisInstallation"))); out.print("<br>"); } needed+=needClass(out, "javax.xml.rpc.Service", "jaxrpc.jar", "JAX-RPC API", getMessage("criticalErrorMessage"), "http://ws.apache.org/axis/"); needed+=needClass(out, "org.apache.axis.transport.http.AxisServlet", "axis.jar", "Apache-Axis", getMessage("criticalErrorMessage"), "http://ws.apache.org/axis/"); needed+=needClass(out, "org.apache.commons.discovery.Resource", "commons-discovery.jar", "Jakarta-Commons Discovery", getMessage("criticalErrorMessage"), "http://jakarta.apache.org/commons/discovery/"); needed+=needClass(out, "org.apache.commons.logging.Log", "commons-logging.jar", "Jakarta-Commons Logging", getMessage("criticalErrorMessage"), "http://jakarta.apache.org/commons/logging/"); needed+=needClass(out, "org.apache.log4j.Layout", "log4j-1.2.8.jar", "Log4j", getMessage("uncertainErrorMessage"), "http://jakarta.apache.org/log4j"); //should we search for a javax.wsdl file here, to hint that it needs //to go into an approved directory? because we dont seem to need to do that. needed+=needClass(out, "com.ibm.wsdl.factory.WSDLFactoryImpl", "wsdl4j.jar", "IBM's WSDL4Java", getMessage("criticalErrorMessage"), null); needed+=needClass(out, "javax.xml.parsers.SAXParserFactory", "xerces.jar", "JAXP implementation", getMessage("criticalErrorMessage"), "http://xml.apache.org/xerces-j/"); needed+=needClass(out,"javax.activation.DataHandler", "activation.jar", "Activation API", getMessage("criticalErrorMessage"), "http://java.sun.com/products/javabeans/glasgow/jaf.html");%></UL><% out.print("<h3>"+ getMessage("optionalComponents") +"</h3>");%><UL><% /* * now the stuff we can live without */ wanted+=wantClass(out,"javax.mail.internet.MimeMessage", "mail.jar", "Mail API", getMessage("attachmentsError"), "http://java.sun.com/products/javamail/"); wanted+=wantClass(out,"org.apache.xml.security.Init", "xmlsec.jar", "XML Security API", getMessage("xmlSecurityError"), "http://xml.apache.org/security/"); wanted += wantClass(out, "javax.net.ssl.SSLSocketFactory", "jsse.jar or java1.4+ runtime", "Java Secure Socket Extension", getMessage("httpsError"), "http://java.sun.com/products/jsse/"); /* * resources on the classpath path */ /* add more libraries here */%></UL><% out.write("<h3>"); //is everythng we need here if(needed==0) { //yes, be happy out.write(getMessage("happyResult00")); } else { //no, be very unhappy response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); out.write(getMessage("unhappyResult00",Integer.toString(needed))); } //now look at wanted stuff if(wanted>0) { out.write(getMessage("unhappyResult01",Integer.toString(wanted))); } else { out.write(getMessage("happyResult01")); } out.write("</h3>");%><UL><% //hint if anything is missing if(needed>0 || wanted>0 ) { out.write(getMessage("hintString")); } out.write(getMessage("noteString"));%></UL> <h2><%= getMessage("apsExamining") %></h2><UL> <% String servletVersion=getServletVersion(); String xmlParser=getParserName(); String xmlParserLocation = getParserLocation(out); %> <table border="1" cellpadding="10"> <tr><td>Servlet version</td><td><%= servletVersion %></td></tr> <tr><td>XML Parser</td><td><%= xmlParser %></td></tr> <tr><td>XML ParserLocation</td><td><%= xmlParserLocation %></td></tr> </table></UL><% if(xmlParser.indexOf("crimson")>=0) { %> <p> <%= getMessage("recommendedParser") %> </p><% } %> <h2><%= getMessage("sysExamining") %></h2><UL><% /** * Dump the system properties */ java.util.Enumeration e=null; try { e= System.getProperties().propertyNames(); } catch (SecurityException se) { } if(e!=null) { out.write("<pre>"); for (;e.hasMoreElements();) { String key = (String) e.nextElement(); out.write(key + "=" + System.getProperty(key)+"\n"); } out.write("</pre><p>"); } else { out.write(getMessage("sysPropError")); }%></UL> <hr> <%= getMessage("apsPlatform") %>: <%= getServletConfig().getServletContext().getServerInfo() %></body></html>⌨️ 快捷键说明
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