在开发中我们修改一个Java文件后想看到效果不得不重启应用,这导致大量时间 花费,我们希望不重启应用的情况下,程序可以自动部署(热部署)。有以下四 种情况,如何能实现热部署。
1、模板引擎
– 在Spring Boot中开发情况下禁用模板引擎的cache
– 页面模板改变ctrl+F9可以重新编译当前页面并生效
2、Spring Loaded
Spring官方提供的热部署程序,实现修改类文件的热部署
– 下载Spring Loaded(项目地址https://github.com/springprojects/spring-loaded)
– 添加运行时参数; -javaagent:C:/springloaded-1.2.5.RELEASE.jar –noverify
3、JRebel
– 收费的一个热部署软件
– 安装插件使用即可
4、Spring Boot Devtools(推荐)
– 引入依赖
– IDEA使用ctrl+F9
– 或做一些小调整
(1)pom文件
<?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>
<groupId>com.atguigu</groupId>
<artifactId>springboot_deploy</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>springboot_deploy</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.12.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
(2)代码