thanks very much. let me try again
Mike 2009/3/8 Pid <p...@pidster.com> > Mike.G wrote: > > Hi, everyone, > > I run the tomcat 6.0.18 on my ubuntu 8.04.2, the jdk version is 1.6.0_07 > > > > I configure the localhost 's ROOT to my home directory /home/ghw/myjava > > the configuration file like this: > > > > <?xml version='1.0' encoding='utf-8'?> > > > > <Server port="8005" shutdown="SHUTDOWN"> > > > > <Listener className="org.apache.catalina.core.AprLifecycleListener" > > SSLEngine="on" /> > > <Listener className="org.apache.catalina.core.JasperListener" /> > > <Listener > className="org.apache.catalina.mbeans.ServerLifecycleListener" > > /> > > <Listener > > className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" > /> > > > > <GlobalNamingResources> > > <Resource name="UserDatabase" auth="Container" > > type="org.apache.catalina.UserDatabase" > > description="User database that can be updated and saved" > > > factory="org.apache.catalina.users.MemoryUserDatabaseFactory" > > pathname="conf/tomcat-users.xml" /> > > </GlobalNamingResources> > > > > <Service name="Catalina"> > > <Connector port="8080" protocol="HTTP/1.1" > > connectionTimeout="20000" > > redirectPort="8443" /> > > <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" /> > > <Engine name="Catalina" defaultHost="localhost"> > > <Realm className="org.apache.catalina.realm.UserDatabaseRealm" > > resourceName="UserDatabase"/> > > <Host name="localhost" appBase="webapps" > > unpackWARs="true" autoDeploy="true" > > xmlValidation="false" xmlNamespaceAware="false"> > > > > </Host> > > </Engine> > > </Service> > > </Server> > > > > > > and I created the directory understand > CATALINE_HOME/conf/Catalina/localhost > > and create a ROOT.xml in there > > like this: > > <?xml version="1.0" encoding="utf-8"?> > > > > <Context path="" docBase="/home/ghw/myjava" debug="9" reloadable="9" > > > > > </Context> > > > > when write a test index.jsp in /home/ghw/myjava, it works. > > > > > > and when I try to write a Tag class in there, it will be report Error: > > > > *type* Exception report > > > > *message* > > > > *description* *The server encountered an internal error () that prevented > it > > from fulfilling this request.* > > > > *exception* > > > > org.apache.jasper.JasperException: Unable to compile class for JSP: > > > > An error occurred at line: 10 in the jsp file: /test.jsp > > JavaScriptExampleTag cannot be resolved to a type > > 7: </head> > > 8: <body> > > 9: <p>This is a simple test page </p> > > 10: <my:message> > > 11: This is a simple java alert message > > 12: </my:message> > > 13: > > > > > > An error occurred at line: 10 in the jsp file: /test.jsp > > JavaScriptExampleTag cannot be resolved to a type > > 7: </head> > > 8: <body> > > 9: <p>This is a simple test page </p> > > 10: <my:message> > > 11: This is a simple java alert message > > 12: </my:message> > > 13: > > > > > > An error occurred at line: 10 in the jsp file: /test.jsp > > JavaScriptExampleTag cannot be resolved to a type > > 7: </head> > > 8: <body> > > 9: <p>This is a simple test page </p> > > 10: <my:message> > > 11: This is a simple java alert message > > 12: </my:message> > > 13: > > > > > > Stacktrace: > > > org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92) > > > org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330) > > > org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:423) > > org.apache.jasper.compiler.Compiler.compile(Compiler.java:317) > > org.apache.jasper.compiler.Compiler.compile(Compiler.java:295) > > org.apache.jasper.compiler.Compiler.compile(Compiler.java:282) > > > org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586) > > > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317) > > > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342) > > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267) > > > > > > here is my web.xml > > <taglib> > > <taglib-uri> > > /WEB-INF/tld/JavaScriptExampleTag.tld > > </taglib-uri> > > > > <taglib-location> > > /WEB-INF/tld/JavaScriptExampleTag.tld > > </taglib-location> > > </taglib> > > > > > > and the tld file is like this: > > <?xml version="1.0" encoding="utf-8"?> > > > > <!DOCTYPE taglib > > PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN" > > "http://java.sun.com/j2ee/dtd/web-jsptaglibrary_1_2.dtd";> > > > > <taglib> > > <tlib-version>1.0</tlib-version> > > <jsp-version>1.2</jsp-version> > > <short-name>JavaScriptExampleTag</short-name> > > <uri>/WEB-INF/tld/JavaScriptExampleTag.tld</uri> > > <description> > > A simple tab library for the examples > > </description> > > > > <tag> > > <name>message</name> > > <tag-class>JavaScriptExampleTag</tag-class> > > <info>Display Alert Box</info> > > </tag> > > > > > > > > </taglib> > > > > > > and the Tag class like this: > > import java.io.IOException; > > import javax.servlet.jsp.*; > > import javax.servlet.jsp.tagext.*; > > > > public class JavaScriptExampleTag extends BodyTagSupport { > > public int doEndTag() throws JspTagException { > > String ls_alert = ""; > > > > try { > > BodyContent lbc_bodycurrent = getBodyContent(); > > > > if ( lbc_bodycurrent != null ) { > > String ls_message = lbc_bodycurrent.getString(); > > JavaScriptExample JS = new JavaScriptExample(); > > > > ls_alert = JS.alert(ls_message.trim()); > > > > } > > > > pageContext.getOut().write(ls_alert); > > > > } catch ( IOException e ) { > > throw new JspTagException("Error " + e.toString()); > > } > > return EVAL_PAGE; > > } > > } > > Put your tag class in a package, and make sure the tag class is in the > correct folder like so: > > myapp/index.jsp > myapp/WEB-INF/classes/com/myapp/YourTag.class > myapp/WEB-INF/tld/YourTag.tld > > Adjust the tag class definition in the the TLD accordingly. > > p > > > > > and the Bean class is like this: > > import java.io.Serializable; > > > > public class JavaScriptExample implements Serializable { > > > > public JavaScriptExample() { > > > > } > > > > public String alert(Object aobj_data) { > > return( start_script + " alert(\" " + > > aobj_data.toString() + "\");" + > > end_script ); > > } > > > > > > > > //private area > > private String start_script = "<script language=\"javascript\">"; > > private String end_script = "</script>"; > > > > > > > > } > > > > > > anyone can help me on this? > > > > thanks very much > > > > > > Mike > > javax.servlet.http.HttpServlet.service(HttpServlet.java:717) > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
