Spring boot 项目 devtools 实现热部署（IDEA）

超、凢脫俗 2021-09-20 18:28 447阅读 0赞

### 一，背景 ###

当我们的项目（web页面，静态资源，java代码）发上变化的时候我们不希望每一次都手动重启项目。我们用官方的devtools解决这个问题，当然方法有很多。

### 二，配置 ###

1，项目配置

我们先创建一个如下目录结构的项目

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9tcmxlZS5ibG9nLmNzZG4ubmV0_size_16_color_FFFFFF_t_70][]

pom引入所需的jar以及插件fork设置为true

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <parent>
            <groupId>com.g7go</groupId>
            <artifactId>simple-study-project</artifactId>
            <version>1.0.0-SNAPSHOT</version>
        </parent>
        <artifactId>devtools-demo</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>devtools-demo</name>
        <description>devtools-demo</description>
    
        <properties>
            <java.version>1.8</java.version>
        </properties>
    
        <dependencies>
            <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-thymeleaf</artifactId>
            </dependency>
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <configuration>
                        
                        <fork>true</fork>
                    </configuration>
                </plugin>
            </plugins>
        </build>
    
    </project>

application.yml

spring:
      devtools:
        restart:
          #添加额外重启目录
          additional-paths: src/main/java
          #排除重启目录默认如下：exclude: META-INF/maven/**,META-INF/resources/**,resources/**,static/**,public/**,templates/**,**/*Test.class,**/*Tests.class,git.properties,META-INF/build-info.properties
      mvc:
        #指定静态资源上下文目录
        static-path-pattern: /**
      resources:
        #指定静态资源根目录
        static-locations: classpath:/static/
      thymeleaf:
        prefix: classpath:/templates/
        suffix: .html
        cache: false
    server:
      port: 8013

2，IDEA配置

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9tcmxlZS5ibG9nLmNzZG4ubmV0_size_16_color_FFFFFF_t_70 1][]

快捷键 shift+ctrl+alt+/

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9tcmxlZS5ibG9nLmNzZG4ubmV0_size_16_color_FFFFFF_t_70 2][]

勾选compiler.automake.allow.when.app.running

### 3，测试 ###

当修改src/main/java或者application.yml时候自动重启项目，当修改static，templates时只是重新加载资源。

测试项目地址：

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9tcmxlZS5ibG9nLmNzZG4ubmV0_size_16_color_FFFFFF_t_70]: /images/20210920/456e9f1c661f4c328605be9bded066a0.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9tcmxlZS5ibG9nLmNzZG4ubmV0_size_16_color_FFFFFF_t_70 1]: /images/20210920/213c5301d7c04f129eee860cf7e771f6.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9tcmxlZS5ibG9nLmNzZG4ubmV0_size_16_color_FFFFFF_t_70 2]: /images/20210920/3f0a55756c9949e6a4f5306f9732a37e.png