Add context path to Spring Boot application

Question

I am trying to set a Spring Boot applications context root programmatically  The reason for the context root is we want the app to be accessed from localhost port  app name  and have all the controller paths append to it    Here is the application configuration file for the web-app    Configuration public class ApplicationConfiguration      Logger logger   LoggerFactory getLogger ApplicationConfiguration class       Value    mainstay web port 12378      private String port      Value    mainstay web context  mainstay      private String context     private Set lt ErrorPage gt  pageHandlers      PostConstruct   private void init          pageHandlers   new HashSet lt ErrorPage gt           pageHandlers add new ErrorPage HttpStatus NOT FOUND   notfound html           pageHandlers add new ErrorPage HttpStatus FORBIDDEN   forbidden html             Bean   public EmbeddedServletContainerFactory servletContainer          TomcatEmbeddedServletContainerFactory factory   new TomcatEmbeddedServletContainerFactory          logger info  Setting custom configuration for Mainstay           logger info  Setting port to     port         logger info  Setting context to     context         factory setPort Integer valueOf port          factory setContextPath context         factory setErrorPages pageHandlers         return factory         public String getPort           return port         public void setPort String port          this port   port          Here is the index controller for the main page     Controller public class IndexController      Logger logger   LoggerFactory getLogger IndexController class       RequestMapping        public String index Model model         logger info  Setting index page title to Mainstay - Web          model addAttribute  title   Mainstay - Web          return  index            The new root of the application should be at localhost 12378 mainstay  but it is still located at localhost 12378    What am I missing that is causing Spring Boot to not append the context root before the request mapping

User · Answer

In Spring Boot 1 5   Add the following property in application properties   server context-path  demo   Note   demo is your context path URL

User · Answer

You can use in Spring Boot  2 1 6 like below  server servlet context-path  api-path

User · Answer

The correct properties are   server servlet path   to configure the path of the DispatcherServlet  and  server servlet context-path   to configure the path of the applications context below that

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If you are using Spring Boot  then you don t have to configure the server properties via Bean initializing  Instead  if one functionality is available for basic configuration  then it can be set in a  quot properties quot  file called application  which should reside under src main resources in your application structure  The  quot properties quot  file is available in two formats   yml   properties   The way you specify or set the configurations differs from one format to the other  In your specific case  if you decide to use the extension  properties  then you would have a file called application properties under src main resources with the following configuration settings server port   8080 server contextPath    context-path  OTOH  if you decide to use the  yml extension  i e  application yml   you would need to set the configurations using the following format  i e  YAML   server      port  8080     contextPath   context-path  For more common properties of Spring Boot refer to the link below   https   docs spring io spring-boot docs current reference html common-application-properties html

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For below Spring boot 2 version you need to use below code server     context-path  abc      And For Spring boot 2  version use below code server    servlet      context-path  abc

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If you are using application yml and spring version above 2 0 then configure in below manner   server    port  8081   servlet       context-path   demo-api   Now all the api call will be like http   localhost 8081 demo-api

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please note that the  server context-path  or  server servlet context-path   starting from springboot 2 0 x  properties will only work if you are deploying to an embedded container e g   embedded tomcat  These properties will have no effect if you are deploying your application as a war to an external tomcat for example   see this answer here  https   stackoverflow com a 43856300 4449859

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We can change context root path using a simple entry in the properties file   application properties      Spring boot 1 x           server contextPath  ClientApp      Spring boot 2 x           server servlet context-path  ClientApp

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lt  -- Server port-- gt   server port 8080   lt  --Context Path of the Application-- gt   server servlet context-path  ems

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If you use Spring Boot 2 0 0 use   server servlet context-path

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It must be  server servlet context-path     demo note that it does not have quotes only the value preceded by     this value goes in your application properties file

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If you use Spring Boot 2 x and want to pass the context path property in the command line  you should put double    like this   --server servlet context-path   your-path   That worked for me running in windows

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Why are you trying to roll your own solution  Spring-boot already supports that   If you don t already have one  add an application properties file to src main resources  In that properties file  add 2 properties   server contextPath  mainstay server port 12378   UPDATE  Spring Boot 2 0   As of Spring Boot 2 0  due to the support of both Spring MVC and Spring WebFlux  the contextPath has been changed to the following   server servlet contextPath  mainstay   You can then remove your configuration for the custom servlet container  If you need to do some post processing on the container you can add a EmbeddedServletContainerCustomizer implementation to your configuration  for instance to add the error pages    Basically the properties inside the application properties serve as a default you can always override them by using another application properties next to the artifact you deliver or by adding JVM parameters  -Dserver port 6666    See also The Reference Guide especially the properties section   The class ServerProperties implements the EmbeddedServletContainerCustomizer  The default for contextPath is     In your code sample you are setting the contextPath directly on the TomcatEmbeddedServletContainerFactory  Next the ServerProperties instance will process this instance and reset it from your path to      This line does a null check but as the default is    it always fail and set the context to    and thus overriding yours

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server contextPath  mainstay  works for me if i had one war file in JBOSS  Among multiple war files where each contain jboss-web xml it didn t work  I had to put jboss-web xml inside WEB-INF directory with content   lt  xml version  1 0  encoding  UTF-8   gt   lt jboss-web xmlns  http   www jboss com xml ns javaee  xmlns xsi  http   www w3 org 2001 XMLSchema-instance             xsi schemaLocation  http   www jboss com xml ns javaee http   www jboss org j2ee schema jboss-web 5 1 xsd  gt       lt context-root gt mainstay lt  context-root gt   lt  jboss-web gt

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context path can be directly integrated to the code but it is not advisable since it cannot be reused so write in the application properties file server contextPath  name of the folder where you placed the code contextPath   name of the folder where you placed the code  Note watch the slash carefully

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We can set it in the application properties as API CONTEXT ROOT  therootpath  And we access it in the Java class as mentioned below   Value    API CONTEXT ROOT    private String contextRoot

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We can set it using WebServerFactoryCustomizer  This can be added directly in the spring boot main method class which starts up the Spring ApplicationContext    Bean     public WebServerFactoryCustomizer lt ConfigurableServletWebServerFactory gt        webServerFactoryCustomizer             return factory - gt  factory setContextPath   demo

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You can do it by adding the port and contextpath easily to add the configuration in  src main resources   properties file and also  yml file   application porperties file configuration  server port   8084 server contextPath    context-path   application yml file configuration  server  port  8084 contextPath   context-path   We can also change it programmatically in spring boot    Component public class ServerPortCustomizer implements     WebServerFactoryCustomizer lt EmbeddedServletContainerCustomizer  gt      Override public void customize EmbeddedServletContainerCustomizer factory        factory setContextPath   context-path        factory setPort 8084          We can also add an other way   SpringBootApplication public class MyApplication   public static void main String   args   SpringApplication application       new pringApplication MyApplication class       Map lt String  Object gt  map   new HashMap lt  gt         map put  server servlet context-path     context-path        map put  server port    808        application setDefaultProperties map       application run args                    using java command spring boot 1 X  java -jar my-app jar --server contextPath  spring-boot-app     --server port 8585    using java command spring boot 2 X  java -jar my-app jar --server servlet context-path  spring-boot-app --server port 8585

[java] Add context path to Spring Boot application

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