servlets

XAMPP tomcat service is not starting with error as “Tomcat Started/Stopped with errors, return code: 1”

由 大憨熊 提交于 2019-12-24 18:42:56
问题 I have installed XAMPP 7.2.10 on my Win 10 and other services like Apache and MySQL are working fine. But the Tomcat service is not starting and is throwing an error as: "Tomcat Started/Stopped with errors, return code: 1, Make sure you have Java JDK or JRE installed and the required ports are free, Check the "/xampp/tomcat/logs" folder for more information" XAMPP Tomcat error image I have installed Java JDK in "C:\Program Files\Java" and have set the environment variables path. I have set

JQuery uploadify plugin not working

由 让人想犯罪 __ 提交于 2019-12-24 18:33:04
问题 I first used primefaces FileUpload component and it didn't work. Always gave "HTTP Error". So i thought there is some bug with this component and went to plain old JQuery and tried using uploadify. But still i get the same error. I am using Container Managed Security. Is this the reason for not working properly? This is my script :- $(document).ready(function(){ $('#photoInput').uploadify({ 'script' : '/Blogger/fileUploadServlet', 'uploader' : './uploadify/uploadify.swf', 'cancelImg' : '.

Why can't i send email from my servlet and getting java.security.AccessControlException? [duplicate]

由 久未见 提交于 2019-12-24 18:30:16
问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Why can't i send email from my servlet? I am using google app engine. I want to send email from my servlet. i am using following code: String to[] = {"mygmail@gmail.com"}; String host = "smtp.gmail.com"; String username = "mygmail@gmail.com"; String password = "password"; Properties props = new Properties(); props.put("mail.smtps.auth", "true"); props.put("mail.smtp.starttls.enable", "true"); props.put("mail

how to submit the option selected from drop down list in jsp page to perform a mysql query

由 时光怂恿深爱的人放手 提交于 2019-12-24 18:05:09
问题 My project is StaffAllocation, and I want to retrieve information from the database. I'm very new and this is my very first project. I created a drop down list retrieving staffnames from one of my table. Now I want to perform a query action to view the details of the selected staffnames from the drop-down list. The following is the coding which i have, which is not correct: <%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <%@ page import="java

Servlet get date and time

由 孤人 提交于 2019-12-24 17:50:14
问题 I'm using the following code to get the date and time public class offer extends HttpServlet { @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); try { out.println("<html>"); out.println("<head>"); out.println("<title>Servlet offer</title>"); out.println("</head>"); out.println("<body>"); out.println("<h1> sv sugar mills</h1>"

send object from JSP to sevlet [duplicate]

由 隐身守侯 提交于 2019-12-24 17:25:54
问题 This question already has answers here : Passing an object from JSP page back to Servlet (3 answers) Closed 3 years ago . Can i send object or bean instead of sending parameters in jsp request to servlet, if yes , How can i get the value from each input field and use it inside jsp. E.g: //define user object <jsp:useBean id="user" class="iug.edu.entities.UserBean"/> //here is the input inside fomr <input type="text" name="userName"/> //here jsp code , to add object attributes <% user

Why does a servlet container synchronise access for multiple requests to a particular resource/ servlet?

由 别来无恙 提交于 2019-12-24 17:25:40
问题 By default, the servlet container loads only a single instance of a servlet. Requests serviced by the servlet are run in separate threads , but share the same instance . This enables applications to be responsive and scalable, since it requires fewer resources and uses them efficiently. Almost everyone knows that this is the default threading model . This question/discussion is a follow-up on this particular stackoverflow thread. But the output happens to be completely different in my case,

Send a string to a servlet from android

由 丶灬走出姿态 提交于 2019-12-24 17:20:53
问题 I am trying to send a string from a android application to a servlet and then retrieve that string to my android application ,but when i try to invoke the servlet it force close on me and i dont know why (im very new to android and this is a practice exercise for me) here is my android simple app: ANDROID package com.theopentutorials.android; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net

Java servlets, write data from text file to web page

由 可紊 提交于 2019-12-24 17:15:50
问题 I have this servlet code in java: package servlets; import java.io.*; import java.util.*; import javax.servlet.*; import java.net.*; public class Servlet1 extends GenericServlet{ private ServletConfig sc; public void init(ServletConfig conf) throws ServletException{ super.init(conf); sc = conf; } public void read_file(){ String filename = "/web/WEB-INF/Data.txt"; BufferedReader br = new BufferedReader(new FileReader(filename)); // Why this doesn't work ? } public void service(ServletRequest

java.lang.ClassNotFoundException: javax.el.StaticFieldELResolver

由 半世苍凉 提交于 2019-12-24 17:12:20
问题 I am attempting to run a project with a servlet that was working a few weeks ago (no modifications have been made since). However, when I run it I now get the following error: java.lang.ClassNotFoundException: javax.el.StaticFieldELResolver I've seen similar questions out there such as this one, but their solutions did not work for me. I've tried the following unsuccessfully: Removing all other library references other than JDK 1.7 and Apache Tomcat 7.0.41.0 Updating the web.xml file from 2.5
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