Spring Boot Hello World示例-JSP

 

 

Spring Boot Hello World示例-JSP

通过姆基永 

一个springbootWeb应用程序示例，使用embedded Tomcat + JSP template，并将其打包为可执行的WAR文件。

使用的技术：

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.项目目录

手动创建以下文件夹：

2.项目依赖

Maven例子。阅读自我解释的注释。

pom.xml

	4.0.0

	spring-boot-web-jsp
	war
	Spring Boot Web JSP Example
	Spring Boot Web JSP Example
	https://www.mkyong.com
	1.0

	
		org.springframework.boot
		spring-boot-starter-parent
		1.4.2.RELEASE
	

	
		1.8
	

	

		
		
			org.springframework.boot
			spring-boot-starter-web
		

		
		
			org.springframework.boot
			spring-boot-starter-tomcat
			provided
		

		
		
			javax.servlet
			jstl
		

		
		
			org.apache.tomcat.embed
			tomcat-embed-jasper
			provided
		

		
		
			org.eclipse.jdt.core.compiler
			ecj
			4.6.1
			provided
		

		
		
			org.webjars
			bootstrap
			3.3.7
		

	
	
		
			
			
				org.springframework.boot
				spring-boot-maven-plugin
			
		
	

Copy

显示项目相关事项：

$ mvn dependency:tree

[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Spring Boot Web JSP Example 1.0
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-dependency-plugin:2.10:tree (default-cli) @ spring-boot-web-jsp ---
[INFO] org.springframework.boot:spring-boot-web-jsp:war:1.0
[INFO] +- org.springframework.boot:spring-boot-starter-web:jar:1.4.2.RELEASE:compile
[INFO] |  +- org.springframework.boot:spring-boot-starter:jar:1.4.2.RELEASE:compile
[INFO] |  |  +- org.springframework.boot:spring-boot:jar:1.4.2.RELEASE:compile
[INFO] |  |  +- org.springframework.boot:spring-boot-autoconfigure:jar:1.4.2.RELEASE:compile
[INFO] |  |  +- org.springframework.boot:spring-boot-starter-logging:jar:1.4.2.RELEASE:compile
[INFO] |  |  |  +- ch.qos.logback:logback-classic:jar:1.1.7:compile
[INFO] |  |  |  |  +- ch.qos.logback:logback-core:jar:1.1.7:compile
[INFO] |  |  |  |  \- org.slf4j:slf4j-api:jar:1.7.21:compile
[INFO] |  |  |  +- org.slf4j:jcl-over-slf4j:jar:1.7.21:compile
[INFO] |  |  |  +- org.slf4j:jul-to-slf4j:jar:1.7.21:compile
[INFO] |  |  |  \- org.slf4j:log4j-over-slf4j:jar:1.7.21:compile
[INFO] |  |  +- org.springframework:spring-core:jar:4.3.4.RELEASE:compile
[INFO] |  |  \- org.yaml:snakeyaml:jar:1.17:runtime
[INFO] |  +- org.hibernate:hibernate-validator:jar:5.2.4.Final:compile
[INFO] |  |  +- javax.validation:validation-api:jar:1.1.0.Final:compile
[INFO] |  |  +- org.jboss.logging:jboss-logging:jar:3.3.0.Final:compile
[INFO] |  |  \- com.fasterxml:classmate:jar:1.3.3:compile
[INFO] |  +- com.fasterxml.jackson.core:jackson-databind:jar:2.8.4:compile
[INFO] |  |  +- com.fasterxml.jackson.core:jackson-annotations:jar:2.8.4:compile
[INFO] |  |  \- com.fasterxml.jackson.core:jackson-core:jar:2.8.4:compile
[INFO] |  +- org.springframework:spring-web:jar:4.3.4.RELEASE:compile
[INFO] |  |  +- org.springframework:spring-aop:jar:4.3.4.RELEASE:compile
[INFO] |  |  +- org.springframework:spring-beans:jar:4.3.4.RELEASE:compile
[INFO] |  |  \- org.springframework:spring-context:jar:4.3.4.RELEASE:compile
[INFO] |  \- org.springframework:spring-webmvc:jar:4.3.4.RELEASE:compile
[INFO] |     \- org.springframework:spring-expression:jar:4.3.4.RELEASE:compile
[INFO] +- org.springframework.boot:spring-boot-starter-tomcat:jar:1.4.2.RELEASE:provided
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-core:jar:8.5.6:provided
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-el:jar:8.5.6:provided
[INFO] |  \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:8.5.6:provided
[INFO] +- javax.servlet:jstl:jar:1.2:compile
[INFO] +- org.apache.tomcat.embed:tomcat-embed-jasper:jar:8.5.6:provided
[INFO] +- org.eclipse.jdt.core.compiler:ecj:jar:4.6.1:provided
[INFO] \- org.webjars:bootstrap:jar:3.3.7:compile
[INFO]    \- org.webjars:jquery:jar:1.11.1:compile
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.327 s
[INFO] Finished at: 2016-11-28T16:57:00+08:00
[INFO] Final Memory: 20M/309M
[INFO] ------------------------------------------------------------------------

Copy

3.弹簧弹簧

3.1这个SpringBootServletInitializer运行一个SpringApplication从传统的战争部署

SpringBootWebApplication.java

package com.mkyong;

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);
	}

}

Copy

3.2一个简单的Spring控制器类。

WelcomeController.java

package com.mkyong;

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 WelcomeController {

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

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

}

Copy

4.JSP+Resources+静态文件

4.1对于JSP文件，输入src/main/webapp/WEB-INF/jsp/

src/main/webapp/WEB-INF/jsp/welcome.jsp

<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>



	
	

	
	
	




	

		

			

				Spring Boot
			
			

				

					
Home
					
About
				
			
		
	

	


		

			
Spring Boot Web JSP Example
			
Message: ${message}
		

	
	
	

Copy

4.2对于CSS或Javascript这样的静态文件，请插入/src/main/resources/static/

/src/main/resources/static/css/main.css

h1{
	color:#0000FF;
}

h2{
	color:#FF0000;
}

 

4.3关于属性文件，输入/src/main/resources/

/src/main/resources/application.properties

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

welcome.message: Hello Mkyong

 

注
SpringBoot，约定超过配置，不需要像这样声明资源映射这，这个。资源映射只是自动处理-阅读本文-弹簧启动服务静态内容

5.演示

5.1启动SpringBootWeb应用程序。

project$ mvn spring-boot:run

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

2016-11-28 17:25:24.809  INFO 4696 --- [           main] com.mkyong.SpringBootWebApplication      : Starting SpringBootWebApplication on MKYONG-WIN10 with PID 4696 (C:\spring-boot\spring-boot-examples\spring-boot-web-jsp\target\classes started by mkyong in C:\spring-boot\spring-boot-examples\spring-boot-web-jsp)
2016-11-28 17:25:24.812  INFO 4696 --- [           main] com.mkyong.SpringBootWebApplication      : No active profile set, falling back to default profiles: default
2016-11-28 17:25:24.861  INFO 4696 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@69410cd3: startup date [Mon Nov 28 17:25:24 SGT 2016]; root of context hierarchy
2016-11-28 17:25:25.950  INFO 4696 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2016-11-28 17:25:25.965  INFO 4696 --- [           main] o.apache.catalina.core.StandardService   : Starting service Tomcat
2016-11-28 17:25:25.966  INFO 4696 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.6
2016-11-28 17:25:26.171  INFO 4696 --- [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.
2016-11-28 17:25:26.180  INFO 4696 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2016-11-28 17:25:26.180  INFO 4696 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1322 ms
2016-11-28 17:25:26.304  INFO 4696 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Mapping servlet: 'dispatcherServlet' to [/]
2016-11-28 17:25:26.312  INFO 4696 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2016-11-28 17:25:26.313  INFO 4696 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2016-11-28 17:25:26.313  INFO 4696 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2016-11-28 17:25:26.314  INFO 4696 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]

//...

2016-11-28 17:25:26.841  INFO 4696 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2016-11-28 17:25:26.846  INFO 4696 --- [           main] com.mkyong.SpringBootWebApplication      : Started SpringBootWebApplication in 2.403 seconds (JVM running for 5.08)

 

5.2访问http://localhost:8080

5.3 Maven将项目打包为可执行文件WAR档案。18m+WAR文件将在target文件夹。

project$ mvn clean package

...
[INFO] Building war: ...\spring-boot-web-jsp\target\spring-boot-web-jsp-1.0.war
[INFO]
[INFO] --- spring-boot-maven-plugin:1.4.2.RELEASE:repackage (default) @ spring-boot-web-jsp ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------

 

运行它，访问http://localhost:8080再来一次。

project$ java -jar target/spring-boot-web-jsp-1.0.war

 

JSP限制
不能创建可执行文件jar要运行此嵌入式Tomcat+JSPWeb示例，需要使用Tomcat中的硬编码文件模式。读这个Spring Boot-JSP限制.

下载源代码

下载-Spring-boot-web-jsp.zip(8KB)

参考文献

1. springboot启动-静态内容
2. SpringBootServletInitiatorJavaDoc
3. 部署SpringBoot应用程序
4. SpringBoot-JSP限制
5. SpringMVC-InludeCSS文件

 

转载自 英文技术网站Mkyong.com