Recent questions tagged servlets

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i try to code a login form which passes username and password to a servlet and let the user login. Then, in ... some user. Please help. Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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459 views

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servlets - HTTP Session: how to configure URLs that not change the session expiration?

I have in my application polling HTTP requests that executed each 5 minutes. I want to configure those URLs not ... that come each 5 minutes See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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539 views

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servlets - Should I set response.setContentLength() header?

What happen if I do not specify the Content-Length header when I send a HttpServletResponse containing a zip ... found some documentation about? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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640 views

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servlets - Java add all table data into list

+--------+-------+-----+ | Name |number |qty | +--------+-------+-----+ | ab | 5 | 7 ... list or ?? and return it using method how do i do that? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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626 views

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servlets - Java ImageIO.write() takes up to 6 seconds

I am writing an web application where I need to send an image from servlet to client. Image is ... down Exception handling for readability. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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667 views

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servlets - How to prevent adding jsessionid at the end of redirected url

I am trying to redirect to foreign domain url from my servlet. But the redirection adds ;jsessionid=ghdssdf ... .com/mymage;jsessionid=dfsdfsd See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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525 views

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servlets - Where to store `UI`-object scoped state in a Vaadin 14 app?

Context (web app) To store state available to our entire Vaadin app, we can get and set "Attribute" on ... state in current Vaadin-based apps. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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565 views

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servlets - Get Java application server name and version

I am writing a Web application with Java, and this WAR application may be deployed to different ... different JEE application servers. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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535 views

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servlets - use flash capture webcam image?

Is there any open source flash utility that i can embed on a webpage and use it to capture user webcam image or ... can you folks elaborate ...? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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504 views

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servlets - How to create an war file in Eclipse without ant or maven?

I am using Eclipse IDE for Java Developers Helios. I have mainly done desktop applications before but now I would ... can deploy it in Jetty. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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436 views

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servlets - ServletContextListener not being invoked

I creating a Java EE 7 project using Eclipse Maven plugin. My problem is when I run the application the class that ... -file-list> </web-app> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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570 views

1 answer

servlets - Accessing HttpServletRequest object in a normal Java class from Spring

I have a normal Java class in a Spring MVC 3.06 web application. In this class I would like to inject ... t have the method getRequestContext(). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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568 views

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servlets - Export jqgrid filtered data as excel or CSV

I am in trouble please help me out.I want to show "export to excel" button in the pager of jqgrid, that will ... am using back-end as a servlet. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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593 views

1 answer

servlets - @MultipartConfig override in web.xml

So I have this servlet : @WebServlet(name = "StudentRegistrationUsn", urlPatterns = {"/university/student/registration" ... run(Thread.java:722) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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452 views

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servlets - @MultipartConfig override in web.xml

So I have this servlet : @WebServlet(name = "StudentRegistrationUsn", urlPatterns = {"/university/student/registration" ... run(Thread.java:722) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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480 views

1 answer

servlets - Export jqgrid filtered data as excel or CSV

I am in trouble please help me out.I want to show "export to excel" button in the pager of jqgrid, that will ... am using back-end as a servlet. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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552 views

1 answer

servlets - @MultipartConfig override in web.xml

So I have this servlet : @WebServlet(name = "StudentRegistrationUsn", urlPatterns = {"/university/student/registration" ... run(Thread.java:722) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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547 views

1 answer

servlets - Parse Accept-Language header in Java

The accept-language header in request is usually a long complex string - Eg. Accept-Language : en-ca,en;q=0.8,en- ... a API to help me do that? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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627 views

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servlets - java.lang.IllegalArgumentException: Control character in cookie value or attribute

I am trying to set the unicode value inside the cookie but it doesn't accept this and throws Exception. I ... 7 as the runtime environment. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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441 views

1 answer

servlets - How to skip a filter in the filter chain in java

I have 2 filters in my application. Based on some condition, I want to choose whether to execute the second ... Any help will be appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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442 views

1 answer

servlets - Loading JSP pages from custom sources

Would it be possible to execute a JSP page and capture its output outside of a web application? Mode specifically, in ... to a JSP file on disk. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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480 views

1 answer

servlets - @WebServlet fails in GlassFish 5 + JDK 13 with java.lang.RuntimeException: com.example.NewServlet.<init>(NewServlet.java:1), always at line 1

JSPs and html files are served by my Glassfish server in NetBeans, but not servlets. Latest NetBeans ... ] public org.glassfish.jms.injection.JMSCDIExtension.processAnnotatedType(@...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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427 views

1 answer

servlets - Can't display SVG charts in Internet Explorer 8

I made a servlet that runs and renders a BIRT report, using ReportEngine API. The only problem is that SVG images (charts) are ... "dialogCloseBtn dCloseBtn"></div> </td> </tr> </t...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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418 views

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servlets - Does SSL also encrypt cookies?

A review of SO doesn't categorically answer this question. It could be implied, but I would like to get it on ... the need to use "setSecure". See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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557 views

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servlets - In Java, How do I make sure my web application is thread safe?

How do I make sure my java servlets web application is thread safe? What do I need to do in regards to ... could be a thread-safety problem? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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485 views

1 answer

servlets - Java Web Application: How to implement caching techniques?

I am developing a Java web application that bases it behavior through large XML configuration files that are loaded ... . Thanks for your help See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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478 views

1 answer

servlets - JSP processing message

probalby quite a dummy question, but that is not the area I work with usually... I have html page "start. ... How can I achieve this? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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763 views

1 answer

servlets - retrieve dropdown list from mysql database and insert to database in jsp

This thing is really bothering me. How can I get my dropdown list from MySQL database and then submit it to ... Hope I get an answer here See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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