Dưới đây là ví dụ về ứng dụng web Spring Boot, sử dụng embedded Tomcat + JSP template, và package được build thành file WAR.

Công nghệ sử dụng:

  1. Spring Boot 1.4.2.RELEASE
  2. Spring 4.3.4.RELEASE
  3. Tomcat Embed 8.5.6
  4. Maven 3
  5. Java 8

1. Cấu trúc thư mục

2. Cấu trúc file pom.xml

<project xmlns="https://maven.apache.org/POM/4.0.0" xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="https://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>spring-boot-web-jsp</groupId>
  <artifactId>spring-boot-web-jsp-hello-world</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>spring-boot-web-jsp-hello-world</name>
  <url>https://maven.apache.org</url>
  <parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.0.5.RELEASE</version>
	</parent>
	<properties>
		<java.version>1.8</java.version>
	</properties>
	<dependencies>
		<!-- Web -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<!-- Web with Tomcat + Embed -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-tomcat</artifactId>
			<scope>provided</scope>
		</dependency>

		<!-- JSTL -->
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>jstl</artifactId>
		</dependency>

		<!-- Need this to compile JSP -->
		<dependency>
			<groupId>org.apache.tomcat.embed</groupId>
			<artifactId>tomcat-embed-jasper</artifactId>
			<scope>provided</scope>
		</dependency>

		<!-- Need this to compile JSP -->
		<dependency>
		<groupId>org.eclipse.jdt.core.compiler</groupId>
			<artifactId>ecj</artifactId>
			<version>4.6.1</version>
			<scope>provided</scope>
		</dependency>
		<!-- Optional, for bootstrap -->
		<dependency>
			<groupId>org.webjars</groupId>
			<artifactId>bootstrap</artifactId>
			<version>3.3.7</version>
		</dependency>

	</dependencies>
	<build>
		<plugins>
			<!-- Package as an executable jar/war -->
			<plugin>
			<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
</project>

 

3. Cấu hình Spring Boot

3.1 Khai báo extend SpringBootServletInitializer dùng để triển khai một ứng dụng Spring boot và được build chạy từ file WAR

package fixbugdao;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;

@SpringBootApplication
public class SpringBootWebApplication extends SpringBootServletInitializer {

	@Override
	protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
		return application.sources(SpringBootWebApplication.class);
	}

	public static void main(String[] args) throws Exception {
		SpringApplication.run(SpringBootWebApplication.class, args);
	}

}

 

3.2 Class controller của Spring Boot

package fixbugdao;

import java.util.Map;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class HelloController {

	// inject via application.properties
	@Value("${welcome.message:test}")
	private String message = "Hello World";

	@RequestMapping("/")
	public String welcome(Map<String, Object> model) {
		model.put("message", this.message);
		return "welcome";
	}
}

 

4. JSP + Resources + Static files

4.1 File JSP được đặt trong src/main/webapp/WEB-INF/jsp/

<!DOCTYPE html>
<%@ taglib prefix="spring" uri="https://www.springframework.org/tags"%>
<%@ taglib prefix="c" uri="https://java.sun.com/jsp/jstl/core"%>
<html lang="en">
<head>

<link rel="stylesheet" type="text/css"
	href="webjars/bootstrap/3.3.7/css/bootstrap.min.css" />

<c:url value="/css/main.css" var="jstlCss" />
<link href="${jstlCss}" rel="stylesheet" />

</head>
<body>
	<nav class="navbar navbar-inverse">
		<div class="container">
			<div class="navbar-header">
				<a class="navbar-brand" href="#">Spring Boot</a>
			</div>
			<div id="navbar" class="collapse navbar-collapse">
				<ul class="nav navbar-nav">
					<li class="active"><a href="#">Home</a></li>
					<li><a href="#about">About</a></li>
				</ul>
			</div>
		</div>
	</nav>

	<div class="container">

		<div class="starter-template">
			<h1>Spring Boot Web JSP Example</h1>
			<h2>Message: ${message}</h2>
		</div>

	</div>
	<!-- /.container -->

	<script type="text/javascript"
		src="webjars/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</body>
</html>

 

4.2 File CSS và Javascript được đặt trong thư mục /src/main/resources/static/

h1{
	color:#0000FF;
}
h2{
	color:#FF0000;
}

 

4.3 File application.properties được đặt trong thư mục /src/main/resources/

spring.mvc.view.prefix: /WEB-INF/jsp/
spring.mvc.view.suffix: .jsp
welcome.message: Hello Fixbugdao

Chú ý : Trong Spring Boot thì cấu hình trong file application.properties như trên nó sẽ tự động mapping vào project, không cần khai báo thủ công như trước.

 

5.  Chạy project

 Chuột phải vào file SpringBootWebApplication.java, chọn Run As -> Java Application. Sau khi project được chạy port mặc định là 8080. Tomcat server đã được nhúng trong project, không cần phải sử dụng tomcat bên ngoài

 .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.4.2.RELEASE)

2019-01-06 20:39:53.283  INFO 4392 --- [           main] fixbugdao.SpringBootWebApplication       : Starting SpringBootWebApplication on DESKTOP-DLGRKJK with PID 4392 (C:\Users\AdMins\eclipse-workspace\spring-boot-web-jsp-hello-world\target\classes started by AdMins in C:\Users\AdMins\eclipse-workspace\spring-boot-web-jsp-hello-world)
2019-01-06 20:39:53.285  INFO 4392 --- [           main] fixbugdao.SpringBootWebApplication       : No active profile set, falling back to default profiles: default
2019-01-06 20:39:53.317  INFO 4392 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@3ba9ad43: startup date [Sun Jan 06 20:39:53 ICT 2019]; root of context hierarchy
2019-01-06 20:39:54.169  INFO 4392 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2019-01-06 20:39:54.177  INFO 4392 --- [           main] o.apache.catalina.core.StandardService   : Starting service Tomcat
2019-01-06 20:39:54.178  INFO 4392 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.6
2019-01-06 20:39:54.363  INFO 4392 --- [ost-startStop-1] org.apache.jasper.servlet.TldScanner     : At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
2019-01-06 20:39:54.366  INFO 4392 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2019-01-06 20:39:54.366  INFO 4392 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1051 ms
2019-01-06 20:39:54.475  INFO 4392 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Mapping servlet: 'dispatcherServlet' to [/]
2019-01-06 20:39:54.478  INFO 4392 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2019-01-06 20:39:54.479  INFO 4392 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2019-01-06 20:39:54.479  INFO 4392 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2019-01-06 20:39:54.479  INFO 4392 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2019-01-06 20:39:54.647  INFO 4392 --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@3ba9ad43: startup date [Sun Jan 06 20:39:53 ICT 2019]; root of context hierarchy
2019-01-06 20:39:54.690  INFO 4392 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/]}" onto public java.lang.String fixbugdao.HelloController.welcome(java.util.Map<java.lang.String, java.lang.Object>)
2019-01-06 20:39:54.692  INFO 4392 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2019-01-06 20:39:54.693  INFO 4392 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2019-01-06 20:39:54.708  INFO 4392 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2019-01-06 20:39:54.708  INFO 4392 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2019-01-06 20:39:54.729  INFO 4392 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2019-01-06 20:39:54.818  INFO 4392 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
2019-01-06 20:39:54.870  INFO 4392 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2019-01-06 20:39:54.874  INFO 4392 --- [           main] fixbugdao.SpringBootWebApplication       : Started SpringBootWebApplication in 1.882 seconds (JVM running for 2.134)
2019-01-06 20:39:57.531  INFO 4392 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring FrameworkServlet 'dispatcherServlet'
2019-01-06 20:39:57.531  INFO 4392 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : FrameworkServlet 'dispatcherServlet': initialization started
2019-01-06 20:39:57.544  INFO 4392 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : FrameworkServlet 'dispatcherServlet': initialization completed in 13 ms

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minhnhatict@gmail.com Apr 10 2021