本文的示例代码参考HotDeploy
目录
开发环境
初始项目
spring init -a demo -b 2.0.6.RELEASE --build gradle -dweb -l kotlin HotDeploy
cd HotDeploy
关于更多springboot命令行工具使用 可以参考Kotlin起步
vim src/main/kotlin/com/example/demo/DemoController.kt
package com.example.demo;
import org.springframework.web.bind.annotation.GetMapping
import org.springframework.web.bind.annotation.RestController
@RestController
class DemoController {
@GetMapping("/demo")
fun demo(): String {
return "Version 1"
}
}
- 测试
./gradlew bootrun
curl localhost:8080/demo
# Version 1
配置Idea
springboot-hotdeploy-01.png
springboot-hotdeploy-02.png
详细配置可以参考Intellij IDEA Java classes not auto compiling on save
配置Gradle
vim build.gradle
dependencies {
implementation('org.springframework.boot:spring-boot-starter-web')
implementation('com.fasterxml.jackson.module:jackson-module-kotlin')
implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
implementation("org.jetbrains.kotlin:kotlin-reflect")
runtimeOnly('org.springframework.boot:spring-boot-devtools')
testImplementation('org.springframework.boot:spring-boot-starter-test')
}
- 使用Idea运行项目
curl localhost:8080/demo
# Version 1
vim src/main/kotlin/com/example/demo/DemoController.kt
package com.example.demo;
import org.springframework.web.bind.annotation.GetMapping
import org.springframework.web.bind.annotation.RestController
@RestController
class DemoController {
@GetMapping("/demo")
fun demo(): String {
return "Version 2"
}
}
- 测试
curl localhost:8080/demo
# Version 2
生产环境
Fully Executable
./gradlew build
java -jar build/libs/demo-0.0.1-SNAPSHOT.jar
curl localhost:8080/demo
# Version 2
vim build.gradle
bootJar {
launchScript()
}
./gradlew build
./build/libs/demo-0.0.1-SNAPSHOT.jar
curl localhost:8080/demo
# Version 2
关于Gradle的配置可以参考64. Installing Spring Boot Applications和4.4.4. Making an archive fully executable
Service
echo "server.port=5858" >> application.properties
vim demo.service
[Unit]
Description=demo
After=syslog.target
[Service]
User=dev
ExecStart=/home/dev/temp/demo-0.0.1-SNAPSHOT.jar --spring.config.location=/home/dev/temp/application.properties
SuccessExitStatus=143
[Install]
WantedBy=multi-user.target
sudo cp demo.service /etc/systemd/system/
# flag the application to start automatically on system boot
systemctl enable fourier.service
- 测试
sudo service demo start
curl localhost:5858/demo
# Version 2
- 关于Service的配置可以参考64.1 Supported Operating Systems
Customizing
vim demo.conf
JAVA_OPTS='-Xms512m -Xmx512m -XX:MaxPermSize=256m -XX:ReservedCodeCacheSize=256m -Dfile.encoding=UTF-8'
RUN_ARGS=--spring.config.location=/home/dev/temp/application.properties
vim demo.service
[Unit]
Description=demo
After=syslog.target
[Service]
User=dev
ExecStart=/home/dev/temp/demo-0.0.1-SNAPSHOT.jar
SuccessExitStatus=143
[Install]
WantedBy=multi-user.target
- 测试
sudo service demo restart
curl localhost:5858/demo
# Version 2
- 关于配置Service启动参数可以参考64.2.3 Customizing the Startup Script
