【唯快不破】学习开发springboot怎么能不先配置热部署？

向右看齐 2022-06-13 12:14 128阅读 0赞

在开发springboot应用过程中，如何频繁的重启服务器，势必要浪费大量的开发时间，配置好热部署，能大大减少时间的浪费。小弟在学习工作中应用intellij idea 2017 使用 spring-boot-devtools 实现热部署。

# 1. 步骤1，配置pom.xml 添加 spring-boot-devtools 的依赖 #

1.  pom.xml 添加spring-boot-devtools依赖， option属性值设置为true

<dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-devtools</artifactId>
                <optional>true</optional>       
            </dependency>
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <configuration>
                        
                        <fork>true</fork> 
                    </configuration>
                </plugin>
            </plugins>
        </build>

# 2. 步骤2. 设置idea #

## 2.1 设置 自动编译 勾选 Build project automactically ##

![这里写图片描述][20170706184332480]

## 2.2 调出 maintain菜单选择 Registry菜单 ##

![这里写图片描述][20170706184714312]

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

![这里写图片描述][20170706184813532]

# 3. 测试效果 #

## 3.1 完整的pom.xml ##

<?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.ruglcc</groupId>
        <artifactId>hoot</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>jar</packaging>
    
        <name>hoot</name>
        <description>Demo project for Spring Boot</description>
    
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>1.5.4.RELEASE</version>
            <relativePath/> 
        </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-data-jpa</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-freemarker</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>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <scope>runtime</scope>
            </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>
                    <configuration>
                        <fork>true</fork> 
                    </configuration>
                </plugin>
            </plugins>
        </build>
    </project>

## 3.2 application.properties ##

#开启包的自动扫描
    entitymanager.packagesToScan= com.ruglcc
    # 数据库连接
    spring.datasource.url=jdbc:mysql://localhost:3306/db
    # 用户名
    spring.datasource.username=root
    # 密码
    spring.datasource.password=123456
    # 数据库驱动
    spring.datasource.driver-class-name=com.mysql.jdbc.Driver
    # 自动更新表
    spring.jpa.properties.hibernate.hbm2ddl.auto=update
    # 使用MYSQL5作为数据库访问方言
    spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
    #显示sql语句
    spring.jpa.properties.hibernate.show_sql=true
    
    # web配置
    server.port=8081
    spring.devtools.restart.enabled=true

## 3.3 测试的控制器TestController.java ##

package com.ruglcc.controller;
    
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    @RestController
    public class TestController {
        
    
        @RequestMapping("test")
        public String test()
        {
            return "唯快不破";
        }
    }

小弟修改一下返回值，发现编辑器在自动编辑，热部署成功~

![006tNc79ly1fhaf08228zg30bo07d1kx.gif][]

[20170706184332480]: /images/20220613/0cf72043aead4fdd8778c4f1e362627d.png
[20170706184714312]: /images/20220613/d7fe03553d2a43df98b0dce412e211ef.png
[20170706184813532]: /images/20220613/4edde540a2c946eaa1cfce09b866ea39.png
[006tNc79ly1fhaf08228zg30bo07d1kx.gif]: https://ws3.sinaimg.cn/large/006tNc79ly1fhaf08228zg30bo07d1kx.gif