<%# page import = "java.sql.*" %>
<!-- Variables Declaration -->
<%!
String connectionURL = "jdbc:mysql://localhost:3306/Tamir";
Connection connection = null;
Statement statement = null;
ResultSet rs = null;
%>
<!-- Connecting to database "Tamir" -->
<%!
void ConnectDb(){
try{
Class.forName("com.mysql.jdbc.Driver").newInstance();
connection = DriverManager.getConnection(connectionURL,"root","tamir");
statement = connection.createStatement();
} catch (Exception ex){
System.out.print("Error in connecting");
}
}
%>
<!-- Html Part Starts Here -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=Windows-1255">
<title> Test Database </title>
</head>
<body>
<h1> test hello </h1>
<%
ConnectDb();
rs = statement.executeQuery("SELECT * FROM users");
out.println(rs.getString("nickname"));
rs.close();
%>
</body>
</html>
Error recieved:
error
and yes, I have the mysql connector in lib of web-inf.
Yes I have a database with the username Tamir and password tamir, and the table Users;
yes, i have tomcat installed and running.
I've been looking in the internet for ages, help would be appriciated. Cheers.
Edit: full error is as the following:
HTTP Status 500 - An exception occurred processing JSP page /select.jsp at line 34
type Exception report
message An exception occurred processing JSP page /select.jsp at line 34
description The server encountered an internal error that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: An exception occurred processing JSP page /select.jsp at line 34
31: <%
32: ConnectDb();
33: rs = statement.executeQuery("SELECT * FROM users");
34: out.println(rs.getString("nickname"));
35: rs.close();
36: %>
37:
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:568)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:455)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
root cause
javax.servlet.ServletException: java.sql.SQLException: Before start of result set
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:912)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:841)
org.apache.jsp.select_jsp._jspService(select_jsp.java:110)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
root cause
java.sql.SQLException: Before start of result set
com.mysql.jdbc.SQLError.createSQLException(SQLError.java:964)
com.mysql.jdbc.SQLError.createSQLException(SQLError.java:897)
com.mysql.jdbc.SQLError.createSQLException(SQLError.java:886)
com.mysql.jdbc.SQLError.createSQLException(SQLError.java:860)
com.mysql.jdbc.ResultSetImpl.checkRowPos(ResultSetImpl.java:790)
com.mysql.jdbc.ResultSetImpl.getStringInternal(ResultSetImpl.java:5212)
com.mysql.jdbc.ResultSetImpl.getString(ResultSetImpl.java:5135)
com.mysql.jdbc.ResultSetImpl.getString(ResultSetImpl.java:5174)
org.apache.jsp.select_jsp._jspService(select_jsp.java:98)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.47 logs.
Apache Tomcat/7.0.47
enter code here
Related
I am trying to run simple code to connect with mysql. I m using eclipse and tomcat.
I have added mysql-connector-java-8.0.1.9.jar in Libraries:
Libraries-->mysql-->mysql-connector-java-8.0.1.9.jar
I have been at it for several hours adding and removing mysql-connector-java-8.0.1.9.jar to build path cannot get it running. Please help. Do I need to add any thing in run configuration??
This is the error on eclipse browser:
HTTP Status 500 – Internal Server Error
Type Exception Report
Message javax.servlet.ServletException: java.lang.NoClassDefFoundError: com/mysql/jdbc/Driver
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
org.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.NoClassDefFoundError: com/mysql/jdbc/Driver
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:599)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:500)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Root Cause
javax.servlet.ServletException: java.lang.NoClassDefFoundError: com/mysql/jdbc/Driver
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:917)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:846)
org.apache.jsp.regCheck_jsp._jspService(regCheck_jsp.java:129)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Root Cause
java.lang.NoClassDefFoundError: com/mysql/jdbc/Driver
compute.DB.con(DB.java:21)
org.apache.jsp.regCheck_jsp._jspService(regCheck_jsp.java:100)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Root Cause
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1951)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1794)
compute.DB.con(DB.java:21)
org.apache.jsp.regCheck_jsp._jspService(regCheck_jsp.java:100)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Note The full stack trace of the root cause is available in the server logs.
This is the output in console:
> Mar 16, 2020 4:57:27 PM org.apache.catalina.core.StandardContext reload
INFO: Reloading Context with name [/Mysql] has started
Mar 16, 2020 4:57:27 PM org.apache.catalina.core.StandardContext reload
INFO: Reloading Context with name [/Mysql] is completed
Mar 16, 2020 4:57:41 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [jsp] in context with path [/Mysql] threw exception [javax.servlet.ServletException: java.lang.NoClassDefFoundError: com/mysql/jdbc/Driver] with root cause
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1951)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1794)
at compute.DB.con(DB.java:21)
at org.apache.jsp.regCheck_jsp._jspService(regCheck_jsp.java:100)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:492)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:165)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:1025)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:452)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1195)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:654)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:319)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:834)
Try - 05 Trying to establish con in regCheck.jsp
Con method called Try 5A
Try 05a - Trying to connect
This is DB.java:
package compute;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
import java.sql.*;
public class DB {
final static String DB_URL = "jdbc:mysql://localhost:3306/new";
final static String USER = "admin";
final static String PASS = "admin";
public static Connection con() {
System.out.println("Con method called Try 5A");
Connection con;
try {
System.out.println("Try 05a - Trying to connect");
DriverManager.registerDriver(new com.mysql.jdbc.Driver());
con = DriverManager.getConnection(DB_URL, USER, PASS);
System.out.println("Try 05a- con established ");
return con;
}catch(Exception e) {
System.out.println(e);
return null;
}
}
public static Statement st() {
Statement stmt;
try {
stmt=DB.con().createStatement();
return null;
}catch(Exception e) {
System.out.println(e);
return null;
}
}
}
This is regCheck.jsp:
<%#page import="java.sql.Connection" %>
<%#page import="compute.DB" %>
<%#page import="java.sql.PreparedStatement" %>
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<%
String user = request.getParameter("username");
System.out.println("Try - 05 Trying to establish con in regCheck.jsp");
Connection con = DB.con();
System.out.println("Preparing Statement in regCheck.jsp");
PreparedStatement p = con.prepareStatement("Insert into register(username)values(?)");
p.setString(1,user);
System.out.println("user::" +user);
int R = p.executeUpdate();
if(R!=0)
response.sendRedirect("index.html");
else
response.sendRedirect("register.jsp");
%>
</body>
</html>
The JDBC driver library is missing from your runtime CLASSPATH i.e. the CLASSPATH where Tomcat looks for the required classes in order to execute your compiled code.
I added mysql-connector-java-8.0.19.jar to Tomcat 7.0/Lib and now it's working find.
I removed it from Library and everywhere and it works.
I created new project with the same code and without adding mysql-connector-java-8.0.19.jar to any library or build path, it's running fine.
I found the instruction to add to tomcat somewhere on youtube.
I'm new to JSP. I'm trying to do a basic program of JSP & MySQL connectivity using ADT Eclipse. On running the index.jsp page, I get the following:
HTTP Status 500 - An exception occurred processing JSP page /index.jsp at line 24
type Exception report
message An exception occurred processing JSP page /index.jsp at line 24
description The server encountered an internal error that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: An exception occurred processing JSP page /index.jsp at line 24
21: String sql = "select usertype from userdetail";
22:
23: try {
24: Class.forName("com.mysql.jdbc.Driver");
25: con = DriverManager.getConnection(url, user, password);
26: ps = con.prepareStatement(sql);
27: rs = ps.executeQuery();
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:568)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:455)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
root cause
javax.servlet.ServletException: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:912)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:841)
org.apache.jsp.index_jsp._jspService(index_jsp.java:141)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
root cause
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:126)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:63)
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Class.java:190)
org.apache.jsp.index_jsp._jspService(index_jsp.java:85)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.30 logs.
Apache Tomcat/7.0.30
I downloaded MySQL Connector J jar and included it in the project
Thanks in advance...
Don't add the external jar. Download it and copy in project.
COPY it in WEB-INF--->lib(folder).
The error ,
javax.servlet.ServletException: java.lang.ClassNotFoundException:
com.mysql.jdbc.Driver
says that it couldn't find the class file .
So you should check for the mysql jar to the the project using ,
Project properties-> add jar
before that place the jar in folder somewhere inside the project or add through external jar option.
If you already added . trying remove and adding the jar file again
see how-to-add-mysql-driver-jar-file-in-eclipse and how-to-add-external-jar-without-eclipse for addtional reference
I am trying to connect to Impala and run a query from my web application. Here is my jsp code:
<%#page contentType="text/html" pageEncoding="UTF-8"%>
<%# page import="java.sql.SQLException" %>
<%# page import="java.sql.Connection" %>
<%# page import="java.sql.ResultSet" %>
<%# page import="java.sql.Statement" %>
<%# page import="java.sql.DriverManager" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>Hello World!</h1>
<%
Class.forName("org.apache.hadoop.hive.jdbc.HiveDriver");
Connection con = DriverManager.getConnection("jdbc:hive2://localhost:21050/;auth=noSasl");
Statement stmt = con.createStatement();
String sql = "select * from logdata limit 10";
System.out.println("Running: " + sql);
ResultSet res = stmt.executeQuery(sql);
while (res.next()) {
System.out.println(String.valueOf(res.getInt(1)) + "\t" + res.getString(2));
}
%>
</body>
</html>
Here is the error that I get in my browser:
exception
org.apache.jasper.JasperException: javax.servlet.ServletException: java.sql.SQLException: Invalid URL: jdbc:hive2://localhost:21050/;auth=noSasl
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:549)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:455)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
root cause
javax.servlet.ServletException: java.sql.SQLException: Invalid URL: jdbc:hive2://localhost:21050/;auth=noSasl
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:911)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:840)
org.apache.jsp.web.index_jsp._jspService(index_jsp.java:114)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
root cause
java.sql.SQLException: Invalid URL: jdbc:hive2://localhost:21050/;auth=noSasl
org.apache.hadoop.hive.jdbc.HiveConnection.<init>(HiveConnection.java:86)
org.apache.hadoop.hive.jdbc.HiveDriver.connect(HiveDriver.java:106)
java.sql.DriverManager.getConnection(DriverManager.java:615)
java.sql.DriverManager.getConnection(DriverManager.java:213)
org.apache.jsp.web.index_jsp._jspService(index_jsp.java:91)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
I am using CDH4 and Tomcat7. I've been wrestling with it for half a day now. What am I missing?
The problem is solved. Instead of:
Class.forName("org.apache.hadoop.hive.jdbc.HiveDriver");
I should have used:
Class.forName("org.apache.hive.jdbc.HiveDriver");
Its very clear from this line ,
org.apache.jasper.JasperException: javax.servlet.ServletException:
java.sql.SQLException:
Invalid URL: jdbc:hive2://localhost:21050/;auth=noSasl
this line "jdbc:hive2://localhost:21050/;auth=noSasl" is invalid . so check for the coorect url to connect your jdbc driver .
Hope this helps!!
This is the code I have put up in my jsp page just to test if it works or not correctly.
The jsp page works fine without any use of opencv classes.
But I got this error while using objects of the opencv library.
<%# page import="org.opencv.core.*" %>
<%# page import="org.opencv.highgui.Highgui" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Title</title>
</head>
<body>
<%
System.loadLibrary("opencv_java248");
Mat img = Highgui.imread("F:/project/im2.jpg");
%>
</body>
</html>
Attaching the error page for the details:
The error code is :
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:553)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:442)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
root cause
javax.servlet.ServletException: java.lang.UnsatisfiedLinkError: org.opencv.highgui.Highgui.imread_1(Ljava/lang/String;)J
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:911)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:840)
org.apache.jsp.first_jsp._jspService(first_jsp.java:79)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:419)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
root cause
java.lang.UnsatisfiedLinkError: org.opencv.highgui.Highgui.imread_1(Ljava/lang/String;)J
org.opencv.highgui.Highgui.imread_1(Native Method)
org.opencv.highgui.Highgui.imread(Highgui.java:359)
org.apache.jsp.first_jsp._jspService(first_jsp.java:68)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:419)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
The unsatisfied link error is telling you, that there was no library with such a name found.
See here: OpenCV + Java = UnsatisfiedLinkError.
On a side note, you really shouldn't be using code inside JSPs. Create a Servlet that does what you want with the image, add it's path/URL as an attribute request.setAttribute("key", "value").
Use a RequestDispatcher:
getServletContext().getRequestDispatcher("/path/to/page.jsp").forward(request, response)
to forward the request and response to the JSP. You can then reference it there with ${key}.
I am having Jsp file under root folder in Tomcat and i want to include another jsp file which is placed under webapps folder. while i am trying following code
<%#page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>Hello World!</h1>
<jsp:include page="../docs/index.html"/>
</body>
</html>
i am getting the following exception
HTTP Status 500 - An exception occurred processing JSP page /trail.jsp at line 16
type Exception report
message An exception occurred processing JSP page /trail.jsp at line 16
description The server encountered an internal error that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: An exception occurred processing JSP page /trail.jsp at line 16
13: </head>
14: <body>
15: <h1>Hello World!</h1>
16: <jsp:include page="../docs/index.html"/>
17: </body>
18: </html>
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:568)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:470)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
root cause
java.lang.NullPointerException
org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:954)
org.apache.jsp.trail_jsp._jspService(trail_jsp.java:73)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.42 logs.
Please help me to include the jsp under webapps folder in tomcat.
Thanks in advance
the file in webapps/doc/ will not be in the same context as trail.jsp. You can not include a jsp from another context. Although according to the code you are trying to include a static file. If this is right please update your description.
Try from the directory WEB-INF/views (src/main/webapp/WEB-INF/views)
<jsp:include page="/WEB-INF/views/index.jsp" />