具体错误只这样的: org.apache.jasper.JasperException: Unable to compile class for JSP..\work\localhost\_\_0002fparton_0002findex_0002ejspindex_jsp_0.java:11: Package xbook.common not found in import. xbook.common.*; ^ ..\work\localhost\_\_0002fparton_0002findex_0002ejspindex_jsp_0.java:13: Package xbook.bookstore not found in import. xbook.bookstore.*;; ^ ..\work\localhost\_\_0002fparton_0002findex_0002ejspindex_jsp_0.java:14: Class or interface declaration expected. import javax.servlet.*; ^ ..\work\localhost\_\_0002fparton_0002findex_0002ejspindex_jsp_0.java:21: Superclass parton.HttpJspBase of class parton._0002fparton_0002findex_0002ejspindex_jsp_0 not found. public class _0002fparton_0002findex_0002ejspindex_jsp_0 extends HttpJspBase { ^
to 风雨: d:\Tomcat\webapps\ROOT\parton\WEB-INF\classes\我加到CLASSPATH中了,还是不行,错误同上! 请教了!
org.apache.jasper.JasperException: Unable to compile class for JSP..\work\localhost\_\_0002fparton_0002findex_0002ejspindex_jsp_0.java:7: Class or interface declaration expected. import java.sql.*; ^ ..\work\localhost\_\_0002fparton_0002findex_0002ejspindex_jsp_0.java:18: Superclass parton.HttpJspBase of class parton._0002fparton_0002findex_0002ejspindex_jsp_0 not found. public class _0002fparton_0002findex_0002ejspindex_jsp_0 extends HttpJspBase { ^ 2 errors 我吧程序改成: import="java.sql.*,java.io.*,java.text.*,java.util.*;" import="xbook.bookstore.*,xbook.comon.*;" 他就出现上面的错误!咋办? 请教两位了!谢谢!
to TNT: 谢谢你的反复帮助,不知道为什么他连JAVA。SQL。*;这个包都找不到,看来我只有下大力起把所有的东东都放在ROOT下试试看,谢谢你,我再试试!
不行,我把所有的东东都放在了ROOT下,可还是说: A Servlet Exception Has Occurred org.apache.jasper.JasperException: Unable to compile class for JSP..\work\localhost\_\_0002findex_0002ejspindex_jsp_0.java:5: Class or interface declaration expected. import java.sql.*; ^ ..\work\localhost\_\_0002findex_0002ejspindex_jsp_0.java:16: Superclass HttpJspBase of class _0002findex_0002ejspindex_jsp_0 not found. public class _0002findex_0002ejspindex_jsp_0 extends HttpJspBase { , 可是我运行其他的*.jsp没问题,我该怎么办?请教了,辛苦两位了!
我的BEAN编译过了。我的BEANS的开始: package xbook.bookstore.
我觉得这样是没什么问题的。不知你是怎样认为的?谢谢!
我的TOMCAT好象没有这个包。请教各位了。在先等待!
package xbook.common ; import java.lang.* ;
import java.sql.* ;
import java.util.* ;
import javax.servlet.* ; public class ConnPool {
private static final int defaultMaxConnections=3 ; private Vector freeConnections ;
private Hashtable boundConnections ;
private String driverName ;
private String jdbcURL ;
private String username ;
private String password ;
private int maxConnections ;
// ------------------------------------ Constructot -------------------------------------
public ConnPool( int numConnections ) {
maxConnections=numConnections ;
boundConnections=null ;
freeConnections=null ;
driverName="" ;
jdbcURL="" ;
username="" ;
password="" ;
}// --------------------------------------------------------------------------------------
public ConnPool() {
this( defaultMaxConnections ) ;
}
public void closeDB() throws SQLException {
if( boundConnections!=null ) {
for( Enumeration e=boundConnections.elements() ; e.hasMoreElements() ; ) {
Connection conn=(Connection)e.nextElement() ;
conn.close() ;
}
boundConnections.clear() ;
boundConnections=null ;
}
if( freeConnections!=null ) {
for( Enumeration e=freeConnections.elements() ; e.hasMoreElements() ; ) {
Connection conn=(Connection)e.nextElement() ;
conn.close() ;
}
freeConnections.removeAllElements() ;
freeConnections=null ;
}
}
public synchronized Connection getConnection()
throws SQLException {
if( freeConnections==null )
throw new SQLException( "The conection pool has not been established yet." ) ;
if( boundConnections.get( Thread.currentThread() )!=null )
throw new SQLException( "Cannot get connections over once for this current running thread." ) ;
try {
if( freeConnections.size()==0 )
wait() ;
}
catch( InterruptedException ex ) {
throw new SQLException( ex.toString() ) ;
}
Connection conn=(Connection)freeConnections.firstElement() ;
freeConnections.removeElement( conn ) ;
boundConnections.put( Thread.currentThread(), conn ) ; return conn ;
}
public void openDB( String drvName, String url,
String uname, String passwd )
throws SQLException {
try {
boundConnections=new Hashtable( maxConnections ) ;
freeConnections=new Vector( maxConnections ) ;
Class.forName( drvName ) ;
for( int i=0 ; i<maxConnections ; i++ )
freeConnections.addElement( DriverManager.getConnection( url ,uname ,passwd ) ) ;
}
catch( Exception ex ) {
boundConnections=null ;
freeConnections=null ;
throw new SQLException( ex.toString() ) ;
}
}
public synchronized void returnConnection()
throws SQLException {
Connection conn=(Connection)boundConnections.remove( Thread.currentThread() ) ;
if( conn==null )
throw new SQLException( "The connection which this current running thread got is not found." ) ;
freeConnections.addElement( conn ) ;
notify() ;
}
public void setConnectionSwitch( String on_off ) throws ServletException {
try {
if( on_off.equalsIgnoreCase( "ON" ) )
openDB( driverName, jdbcURL, username, password ) ;
else if( on_off.equalsIgnoreCase( "OFF" ) )
closeDB() ;
}
catch( SQLException ex ) {
throw new ServletException( ex.toString() ) ;
}
}
public void setMaxConnections( int numConnections ) {
maxConnections=numConnections ;
}
public void setDriverName( String drvName ) {
driverName=drvName ;
}
public void setJdbcURL( String url ) {
jdbcURL=url ;
}
public void setUserName( String uname ) {
username=uname ;
}
public void setPassword( String passwd ) {
password=passwd ;
}
}怎高啊?请教了?第一次做JSP。好多不懂!
我的JAVAX。SERVLET这个包找不到,怎加啊。我的TOMCAT的LIB中没有这个包。 怎么办,谢了!
你在classpath下加上tomcat\bin\servlet.jar试试。
请教两位了!谢谢!呵呵!
具体错误只这样的:
org.apache.jasper.JasperException: Unable to compile class for JSP..\work\localhost\_\_0002fparton_0002findex_0002ejspindex_jsp_0.java:11: Package xbook.common not found in import.
xbook.common.*;
^
..\work\localhost\_\_0002fparton_0002findex_0002ejspindex_jsp_0.java:13: Package xbook.bookstore not found in import.
xbook.bookstore.*;;
^
..\work\localhost\_\_0002fparton_0002findex_0002ejspindex_jsp_0.java:14: Class or interface declaration expected.
import javax.servlet.*;
^
..\work\localhost\_\_0002fparton_0002findex_0002ejspindex_jsp_0.java:21: Superclass parton.HttpJspBase of class parton._0002fparton_0002findex_0002ejspindex_jsp_0 not found.
public class _0002fparton_0002findex_0002ejspindex_jsp_0 extends HttpJspBase {
^
d:\Tomcat\webapps\ROOT\parton\WEB-INF\classes\我加到CLASSPATH中了,还是不行,错误同上!
请教了!
我的Tomcat默认的是在WEBAPPS\ROOT下,在这个目录下的*。JSP是可以行的通的!
import="java.sql.*,
java.io.*,
java.text.*,
java.util.*,
xbook.common.*,
xbook.bookstore.*;"
改成import="java.sql.*,java.io.*,java.text.*,java.util.*,xbook.common.*, xbook.bookstore.*"试一下;
再试去掉这句的
import java.sql.*;
^
..\work\localhost\_\_0002fparton_0002findex_0002ejspindex_jsp_0.java:18: Superclass parton.HttpJspBase of class parton._0002fparton_0002findex_0002ejspindex_jsp_0 not found.
public class _0002fparton_0002findex_0002ejspindex_jsp_0 extends HttpJspBase {
^
2 errors
我吧程序改成:
import="java.sql.*,java.io.*,java.text.*,java.util.*;"
import="xbook.bookstore.*,xbook.comon.*;"
他就出现上面的错误!咋办?
请教两位了!谢谢!
e:\jdk1.3\lib\tools.jar;e:\jdk1.3\lib\dt.jar;e:\jdk1.3\bin ;d:\Tomcat\bin\servlet.jar;d:\Tomcat\webapps\ROOT\parton\WEB-INF\classes;e:\jdk1.3\bin
有没有什么不妥啊?
那么要在server.xml里修改context path,否则系统不认bean的
要不你先把bean放在root\WEB-INF\classes\下试试。
谢谢你的反复帮助,不知道为什么他连JAVA。SQL。*;这个包都找不到,看来我只有下大力起把所有的东东都放在ROOT下试试看,谢谢你,我再试试!
A Servlet Exception Has Occurred
org.apache.jasper.JasperException: Unable to compile class for JSP..\work\localhost\_\_0002findex_0002ejspindex_jsp_0.java:5: Class or interface declaration expected.
import java.sql.*;
^
..\work\localhost\_\_0002findex_0002ejspindex_jsp_0.java:16: Superclass HttpJspBase of class _0002findex_0002ejspindex_jsp_0 not found.
public class _0002findex_0002ejspindex_jsp_0 extends HttpJspBase {
,
可是我运行其他的*.jsp没问题,我该怎么办?请教了,辛苦两位了!
谢谢TNT和风雨了。非常感谢你们两位!呵呵,再见!请你们到这里来!呵呵。
http://expert.csdn.net/Expert/topic/1334/1334844.xml?temp=.9591028