servlets

问题 I want to send different parameters to JSP. Is it possible to send multiple parameter to JSP in jQuery? Because jQuery is client side and JSP is server side. Update me! 回答1: You can make an ajax request passing parameters For example: $.ajax({ type: "POST", url: "userNameCheck.jsp", data: { username: "John"} }).done(function( msg ) { alert( msg ); //do other processing }); See jQuery.ajax 回答2: Simplest case: you want to open some page with javascript (jQuery). In this case you can send

问题 Here is a simplified (NOT real world) example. Suppose there is a domain model - a class Movie , which has a List of actors. A class Actor has three fields ( name , birthDate , rolesNumber ). The following code is an illustration of this scenario: Movie.java public class Movie { // some fields private List<Actor> actors; // getters and setters } Actor.java public class Actor { private String name; private Date birthDate; private int rolesNumber; // getters and setters } There is also a JSP

问题 can i use servlet for a self implemented HttpServer(com.sun.net.httpserver.HttpServer) in eclipse(The HttpServer should start with the port no. and servlet should handle the client request.) ? if yes sample code would be highly useful. 来源： https://stackoverflow.com/questions/25263696/how-to-use-servlet-for-httpserver

问题 can i use servlet for a self implemented HttpServer(com.sun.net.httpserver.HttpServer) in eclipse(The HttpServer should start with the port no. and servlet should handle the client request.) ? if yes sample code would be highly useful. 来源： https://stackoverflow.com/questions/25263696/how-to-use-servlet-for-httpserver

问题 can i use servlet for a self implemented HttpServer(com.sun.net.httpserver.HttpServer) in eclipse(The HttpServer should start with the port no. and servlet should handle the client request.) ? if yes sample code would be highly useful. 来源： https://stackoverflow.com/questions/25263696/how-to-use-servlet-for-httpserver

问题 I have a Servlet which recieves a request, has to process 5 tasks (Grab data Form external Servers) and send all the data back to the client ordered. How to process the 5 Task simultaneously and continue with the servlet code after all 5 tasks are completed? 回答1: You can use CoundDownLatch A synchronization aid that allows one or more threads to wait until a set of operations being performed in other threads completes. sample code: CountDownLatch startSignal = new CountDownLatch(1);

问题 Not a very common implementation, but using Processing as a Java Servlet has been discussed in previous posts before (1, 2). I have been developing a program in Processing to use as a Java servlet. However, when I have code (such as like the first linked example) in a Processing sketch, I get the error message The package 'javax.servlet' does not exist. You might be missing a library. I have Tomcat 5.5 service running on XP, and my environment variables are as follows CLASSPATH = C:\tomcat

问题 I have implemented Spring Session with Redis in my legacy Spring MVC application. I also used the DefaultCookieSerializer to set the jvmRoute , because I need some server affinity for Talend jobs to be able to run. When I run the front end and inspect the page in Chrome, I see the jvmRoute appended to the session. If I edit this from "node1" to "node2", the session is preserved. If I redeploy the server and make requests during that deployment, I get redirected to another node in the cluster,

问题 In my Tomcat servlet, I am using a jar library that looks for certain .properties files in System.getProperty("user.dir") . The issue is that when I deploy the servlet on different servers, the "user.dir" is different. I'd like them to be the same. Is there a way to configure this directory so that it is the same for each server? I also ran catalina.sh version , and the "user.dir" directory doesn't appear in the output (including CATALINA_BASE and CATALINA_HOME ), which is strange. This

问题 I have the following class that I'm using in my Java with JSP applicaton. // public class QuestionBO implements Serializable{ private int questionId; private int testID; private String question; private TutorBO infoAboutTutor; private SubjectBO infoAboutSubject; private TestBO infoAboutTest; private List<AnswerBO> answers; public QuestionBO() { } public QuestionBO(String question) { this.question = question; } getter & setter.... The JSP page has a form where each Question (its String