qijunbo / springboot-jsp

Spring Boot Hello World Example with JSP

Spring Boot Hello World Example with JSP

• Executable jar version
• War version

Branch:

There are two branchs under this repository. ** war ** and ** jar ** , checkout different branch for need. There are significant differences between jar verion and war version.

war

• Gradle

you won't privid this at compile time, but at runtime.

providedRumtime("org.apache.tomcat.embed:tomcat-embed-jasper")
providedRumtime("org.springframework.boot:spring-boot-starter-tomcat")

you must use the plugin war

apply plugin: 'war' 

way to use:

drop it into  tomcat's  webapp folder.

http://localhost:80/springboot_jsp

Reference

https://hellokoding.com/spring-boot-hello-world-example-with-jsp/

What you'll need

• JDK 1.7 or later
• Maven 3 or later
• Gradle 2.3 later

Stack

• Spring Boot
• Java

Run

mvn spring-boot:run

jar

Executable Spring-boot jar ?

It's proved that spring-boot doesn't support jsp very well. don't not waste time on this. But it does NOT mean you cannot use executable jar, just because it is not friendly to jsp, but you can use HTML5, Thymeleaf, Freemarker, etc. Lean more:

https://dzone.com/articles/spring-boot-with-jsps-in-executable-jars-1

• Maven

If you want to generate a executable jar file, you have to use this plug-in, actually, It's heavily rely on this plug-in(1.4.2 this version only, so far.).

<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>1.4.2.RELEASE</version>

for more detail, please refer to the pom.xml in this sample.

run mvn clean package to create the jar file. But the more complicated your project is, the more trouble you encounter, I promise. so again.

do NOT waste time on executable jar which support jsp.

To support jsp means you can access using url like http://xxxx.com/xxx.jsp

in the build.gradle file (this DOES NOT work well, you can only run this in eclipse, so package this project with maven.)

• Gradle

you need to privid this at compile time instead of runtime.

compile("org.apache.tomcat.embed:tomcat-embed-jasper")
compile("org.springframework.boot:spring-boot-starter-tomcat")

and what's more, you need add the -- /webapp -- path into resource path, because in jar version, gradle just simply ignore this folder. so you need to add it manually.

sourceSets.main.resources.srcDirs = ['src/main/webapp','src/main/resources']

and in application.properties, you need to set the view resolver for jsp.

spring.mvc.view.prefix: /WEB-INF/jsp/
spring.mvc.view.suffix: .jsp

• Run this way:

java -jar  xxxx.jar 

you can see different things by clicking:

http://localhost:80

http://localhost:80/index.jsp

http://localhost:80/hello