Questions tagged as 'servlet'

Tagged questions
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How to pass variable from jquery to servlet (control)?

Ineedtodisplaythenoteoftheselecteditem,Ineedthevalueofthisitemor"name" to be able to do the search in the bank and thus show the user the value of the selected item, help me in that, so I see I need the jquery help, I got the value as follows:...
asked by 08.04.2018 / 22:41
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print a list returned from the servlet in a jsp

Good morning, guys I'm killing myself to make my jsp return a list that comes from the DB, I'm getting the information from the bank and I can launch from the servlet to the jsp but not in an orderly and dynamic way, ends up pulling all the item...
asked by 02.03.2018 / 15:36
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Illegal use of < when > -style tag without < choose > its direct parent

I'm developing a web application using jsp and servlet page and would like to show the data from my servlet in two repeat structures one with the produots and another with the plots but this error appears. Illegal use of &lt;when&gt;-s...
asked by 25.02.2018 / 02:18
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Java / MySQL - Error in query

Hello, I'm trying to make a simple application to register with the bank with Java and I'm getting the following error: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corr...
asked by 14.02.2018 / 22:25
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Identify the input URL of a Filter

How do I identify by which URL is being accessed a filter? My situation is as follows: I have the class below: @WebFilter(filterName = "FiltroLogado", urlPatterns = {"/alterar.jsp", "/deletar.jsp", "/cadastrado.jsp", "/logado.jsp"...
asked by 07.02.2018 / 19:42
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Angular Authentication 2 - Java Servlet

I have a problem using an API that I can not make changes to, it happens as follows, I have a servlet that extends from a security library, this library is in charge of logging, allow the methods to be used in the servlet , etc. When I go thr...
asked by 06.02.2018 / 18:23
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Problem when mapping servlet in web xml

I'm getting 500 error when trying to map the servlet, I do not know what can be, I think it's the servlet class that's wrong. ServletpublicclassaddContatoServlet3extendsHttpServlet{protectedvoiddoGet(HttpServletRequestrequest,HttpServletResp...
asked by 16.01.2018 / 17:36
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Send selected value of the option by parameter

I'm developing a Java application where I get the data from the database and present it to a <select><option> but I do not know how to get the value selected and send per parameter.    JSP <c:choose> <c:w...
asked by 24.11.2017 / 02:37
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java.lang.NullPointerException when passing to servlet

Hello, I have a problem in passing the data from a jsp to the servlet that will insert the data into the database, I made three forms for scheduling and in the third it will send to the servlet but the java.lang.NullPointerException error appear...
asked by 24.11.2017 / 13:55
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Message on the JSP Servlet page

I am developing a JSP and Servlet login in which it does the validation of the fields if they are filled and certain but when redirecting to login page it does not display the message of Please fill in the fields of login or password or Incorrec...
asked by 28.10.2017 / 22:41