mysql - Unable to connect to database using jsp in ubuntu -

-

i trying connect mysql database in linux. know making mistake in including jar file. don't know how give reference jar files in linux way reference them in eclipse or netbeans. running jsp pages using tomat7.

type exception report

message exception occurred processing jsp page /first.jsp @ line 9

description server encountered internal error prevented fulfilling request.

exception

org.apache.jasper.jasperexception: exception occurred processing jsp page /first.jsp @ line 9

6: <% 7:
8: out.println("hello world!"); 9: class.forname("com.mysql.jdbc.driver"); 10: connection con=drivermanager.getconnection("jdbc:mysql://localhost:3306/meshliumdb","myuser","mypass"); 11: if(con!=null) 12: out.println("connection established");

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:727)

root cause

javax.servlet.servletexception: java.lang.classnotfoundexception: com.mysql.jdbc.driver org.apache.jasper.runtime.pagecontextimpl.dohandlepageexception(pagecontextimpl.java:916) org.apache.jasper.runtime.pagecontextimpl.handlepageexception(pagecontextimpl.java:845) org.apache.jsp.first_jsp._jspservice(first_jsp.java:86) org.apache.jasper.runtime.httpjspbase.service(httpjspbase.java:70) javax.servlet.http.httpservlet.service(httpservlet.java:727) 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:727)

root cause

java.lang.classnotfoundexception: com.mysql.jdbc.driver org.apache.catalina.loader.webappclassloader.loadclass(webappclassloader.java:1718) org.apache.catalina.loader.webappclassloader.loadclass(webappclassloader.java:1569) 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:191) org.apache.jsp.first_jsp._jspservice(first_jsp.java:73) org.apache.jasper.runtime.httpjspbase.service(httpjspbase.java:70) javax.servlet.http.httpservlet.service(httpservlet.java:727) 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:727)

put mysql-connector-java-5.1.13-bin.jar file in web-inf/lib of directory present inside webapps of tomcat.

or

download mysql-connector-java-5.1.13-bin.jar , add using following procedure.

  1. go project properties right clicking on project.

  2. then click on libraries tab, see compile, run, compile tests, run tests tabs.

  3. click on compile tab

  4. click on add jar/folder button @ right

  5. then browse , select jar files or folder want include. included jar files or libraries show on following box of compile tab.

  6. click on ok button.

  7. finished.

see link .

https://www.youtube.com/watch?v=vqhqy7u9rlc&feature=youtu.be

https://jsumon.wordpress.com/2009/11/24/adding-external-jar-or-library-to-netbeans-java-project/


Comments

Post a Comment

Popular posts from this blog

python - pip install -U PySide error -

-
does know how avoid following error when running pip install -u pyside per official website instructions here: https://pypi.python.org/pypi/pyside/#installing-pyside-on-a-mac-os-x-system note have done brew install qt successfully. you using pip version 7.0.3, version 7.1.2 available. should consider upgrading via 'pip install --upgrade pip' command. collecting pyside using cached pyside-1.2.4.tar.gz installing collected packages: pyside running setup.py install pyside complete output command /applications/anaconda/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-build-cpxemt/pyside/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-0r7hri-record/install-record.txt --single-version-externally-managed --compile:
Read more

arrays - C++ error: a brace-enclosed initializer is not allowed here before ‘{’ token -

-
simple question: i'm trying initialize array within c++ class declaration: using namespace std; #include <string> class myclass{ public: string myarray[] = {"a","b","c"}; }; and i'm getting error: error: brace-enclosed initializer not allowed here before ‘{’ token no, without complied c++11 compiler, cannot initialize member array in declaration. have initialize array member in constructor. , don't use open array if know number of elements initialize array.
Read more

cytoscape.js - How to add nodes to Dagre layout with Cytoscape -

-
i trying add nodes dagre graph through cityscape.js. problem nodes not painted. code have: cy.add({ group: "nodes", data: { id:"n0",name:"n0",weight: 75 }, }); $.ajax(url).done(function(jsontree){ var newnodes=[]; for(var i=1;i<6;i++){ //var child = jsontree.result[i]; newnodes.push( { group: "nodes", data: { id: "n"+i, name:"n"+i}}, { group: "edges", data: { id: "e"+i, source: "n0", target: "n"+i } } ); } cy.add(newnodes); any ideas? have used loaded function reload graph not work. not know if have use specific function reload graph. thank in advance. you need add positions new nodes. cytoscape.js docs : it important note positions of newly added nodes must defined when calling cy.add(). nodes can not placed in graph without valid position — otherwise not displayed. yo
Read more