How to enable add option in run at server [duplicate]
[this the program of servlet] [1][I want to add project name in available block so that my error 404 will solve. This is eclipse And I want to run the servlet program. I'm getting error when run the...
View Article@Inject does not seem to work in my @WebServlet, the dependency is null
This is my servlet code. I'm using java ee and servlet to save my information. I used dependency injection. when I press button to run the servlet I have the error:Cannot invoke...
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Eclipse Build Path Nesting Errors
I'm working on a simple JSP/Servlet/Tomcat webapp for my class. The professor asked us to use a folder structure that is slightly different than the default dynamic web project structure. Rather than...
View ArticleDisable all default HTTP error response content in Tomcat
By default, Tomcat sends some HTML content back to the client if it encounters something like an HTTP 404. I know that via web.xml an <error-page>can be configured to customize this...
View ArticleHow to store a lengthy json as a file and assign this json to a String variable?
I'm working on a server code which when API request is made should send a static Json as response.If Get on /root/, server return Json1If Get on /root/login/, server return Json2This Json1 and Json2...
View ArticleWhat's the best way to deploy an image servlet to maintain confidentiality of...
I have a servlet for allowing manipulations of images - zoom, etc.What's the best way to deploy this service so that the users of the servlet keep their images confidential?I assume this means they...
View ArticleHow to read request attribute in a JSP after a POST request from the same JSP?
I'm working on a webapp with JAVA servlet backend and JSP frontend. This is my problem:in jsp page i have three select form, the options of this form are taken from the DB, so when i load the page the...
View ArticleThe process servlet filter is registered in Spring boot
What I wanted to do is register filter in my spring application dynamically at runtime.At first, I tried to register with injected application context and succeed to add filter as bean, but it doesn't...
View ArticleServletContext.getRealPath("pictures") returns tmp dir?? JBoss [duplicate]
I made an app with seamgen (also with gui) and i created a folder "pictures" in the root of the application for storing profile images .When i evaluate ServletContext.getRealPath("pictures") it returns...
View ArticleGenerated servlet error: default methods are not supported in -source 1.5...
I am using Netbeans version 8.2 to practice my spring MVC project.The version of default IDK provided by netbeans is 1.8 , I am using this project to learn form validation. I am using all the libraries...
View Articleget value of checkbox JSP Servlet
I wanna send checkbox data from JSP to Servlet but it cannot catch my checkbox event.JSP "HomePage.jsp":<form action="MainControl" method="post"><input type="checkbox" name="checkbox1"...
View Articlejava.lang.NoClassDefFoundError: opennlp/tools/tokenize/Tokenizer
i downloaded all needed jar files and added them into build path and the imports work but when i run the app it doesnt work and show the following error: java.lang.NoClassDefFoundError:...
View Article404 error- Showing error while try access my Servlets [duplicate]
the home page works normally, however, when I try to access one of the two servlets I am testing, the 404 error appears. I am using IDE intellij, tomcat 9, maven, servlet version 5,HTTP Status 404 –...
View ArticleJDBC connection object returns null in Servlet/Web [duplicate]
I'm stuck with a servlet problem – my database connection is turning up null. The weird part is, the same database code works fine in another class. I've double-checked my configuration, loaded the...
View ArticleServet and JSP tag have different results from request.getRequestURI()...
I use Spring MVC for a web site. I need to access a JSP page with the following urlhttp://127.0.0.1/passwordResetIn the controller for this page, HttpServletRequest request.getRequestURI() produces the...
View ArticleCompilation error in JSP: req cannot be resolved
I created a simple JSP/Servlet project for calculating the monthly payment. However, when I make an HTTP request on my localhost, I receive the following error:HTTP Status 500 – Internal Server...
View ArticleIs there a way to define required parameter in web.xml in java servlet
I am trying to create a rest api using a java servlet application. I am working with url pattern mapping using web.xml . When I validate parameters I need to do request.getParameter("name") and check...
View ArticleWeb application in other web application
I need to create a web application (servlets/jsp) as a JAR file which can be added in another web application in WEB-INF/lib folder. And it should be made available by making an entry in web.xml...
View Articlejava.lang.IllegalArgumentException: Servlet [LoginServlet] and Servlet...
I have tried to change my simple html form action="LoginServlet" to a custom url like action="/login" and here are the related files,LoginServlet.java@WebServlet("/login")public class LoginServlet...
View ArticleHow to SendRedirect outside a iFrame
I have this structure:<div id="head"><ui:insert name="cabecera"><ui:include src="header.xhtml"/></ui:insert></div><div id="menu"><ui:insert...
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