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在本文中,将演示如何将Spring Boot WAR文件部署到Tomcat servlet容器中。
对于Spring Boot WAR部署,需要执行三个步骤:
SpringBootServletInitializer
War
测试工具:
注意
在Spring Boot中,具有嵌入服务器解决方案的最终可执行JAR
文件可能不适合所有生产环境,特别是部署团队(具有良好的服务器优化和监控技能知识,但缺乏开发经验的团队),他们希望完全控制服务器,并且不能接触代码。
1. 推展 SpringBootServletInitializer
使现有的 @SpringBootApplication
类扩展 SpringBootServletInitializer
1.1 - 经典Spring Boot JAR部署(更新此文件以支持WAR部署)。
SpringBootWebApplication.java
文件的内容如下 -
- import org.springframework.boot.autoconfigure.SpringBootApplication;
-
- @SpringBootApplication
- public class SpringBootWebApplication {
-
- public static void main(String[] args) throws Exception {
- SpringApplication.run(SpringBootWebApplication.class, args);
- }
-
- }
1.2 Spring Boot WAR 部署
SpringBootWebApplication.java
文件的内容如下 -
- 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);
- }
-
- }
-
- /*@SpringBootApplication
- public class SpringBootWebApplication {
- public static void main(String[] args) throws Exception {
- SpringApplication.run(SpringBootWebApplication.class, args);
- }
- }*/
如果要为部署创建了一个额外的SpringBootWebApplication
类,请确保告诉Spring Boot要从哪个主类开始启动程序:
在 pom.xml
文件中增加以下内容指定 -
- <properties>
- <start-class>com.yiibai.NewSpringBootWebApplicationForWAR</start-class>
- </properties>
2.提供标记嵌入式servlet容器
在 pom.xml
文件中增加以下内容指定 -
- <dependencies>
-
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-thymeleaf</artifactId>
- </dependency>
-
- <!-- marked the embedded servlet container as provided -->
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-tomcat</artifactId>
- <scope>provided</scope>
- </dependency>
-
- </dependencies>
3.更新包装为War
在 pom.xml
文件中增加以下内容指定 -
<packaging>war</packaging>
完成,mvn
打包并将$project/target/xxx.war
复制到Tomcat
发布目录进行部署。
4. 完整的Spring Boot WAR + Tomcat部署
4.1 - 以Spring Boot Thymeleaf
为例,更新它并手动部署到Tomcat。
4.2 - 更新现有的SpringBootWebApplication
并让它扩展SpringBootServletInitializer
类。
SpringBootWebApplication.java
文件的完整代码如下所示 -
- package com.yiibai;
-
- 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);
- }
-
- }
4.3 - 更新打包包,并按提供的标记spring-boot-starter-tomcat
。pom.xml
文件的完整代码如下所示 -
- <?xml version="1.0" encoding="UTF-8"?>
- <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
- <modelVersion>4.0.0</modelVersion>
-
- <artifactId>spring-boot-web-thymeleaf</artifactId>
- <packaging>war</packaging>
- <name>Spring Boot Web Thymeleaf Example</name>
- <description>Spring Boot Web Thymeleaf Example</description>
- <url>http://www.yiibai.com</url>
- <version>1.0</version>
-
- <parent>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-parent</artifactId>
- <version>1.4.2.RELEASE</version>
- </parent>
-
- <properties>
- <java.version>1.8</java.version>
- </properties>
-
- <dependencies>
-
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-thymeleaf</artifactId>
- </dependency>
-
- <!-- marked the embedded servlet container as provided -->
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-tomcat</artifactId>
- <scope>provided</scope>
- </dependency>
-
- <!-- hot swapping, disable cache for template, enable live reload -->
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-devtools</artifactId>
- <optional>true</optional>
- </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>
4.4 - 这是可选的,将contextPath
更新为/yiibai
以方便稍后作为演示。准备好WAR
部署文件。
application.properties
文件的完整内容如下所示 -
- welcome.message: Hello Yiibai
-
- server.contextPath=/yiibai
Bash
4.5 - 获取Tomcat并部署WAR文件,执行以下命令 -
- F:\worksp\springboot\spring-boot-war-tomcat>mvn clean package
- [INFO] Scanning for projects...
- [INFO]
- [INFO] ------------------------------------------------------------------------
- [INFO] Building Spring Boot Web Thymeleaf Example 1.0
- [INFO] ------------------------------------------------------------------------
- Downloading: http://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-starter-thymeleaf/1.4.2.RELEASE/spring-boot-starter-thymeleaf-1.4.2.RELEASE.pom
- Downloaded: http://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-starter-thymeleaf/1.4.2.RELEASE/spring-boot-starter-thymeleaf-1.4.2.RELEASE.pom (2 KB at 0.7 KB/sec)
- Downloading: http://repo.maven.apache.org/maven2/org/thymeleaf/thymeleaf-spring4/2.1.5.RELEASE/thymeleaf-spring4-2.1.5.RELEASE.pom
- ....
- .... ...
将生成的 spring-boot-web-thymeleaf-1.0.war
拷贝到 Tomcat 发布目录下 -
例如,写本文章时,Tomcat 发布目录使用的是 -F:\worksp\springmvc\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\webapps
4.6 - 现在启动 Tomcat,访问:http://localhost:8080/yiibai/ ,程序没有错误问题,应该会看到以下结果 -
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