IDEA+Gradle搭建Spring Boot项目

àì夳堔傛蜴生んèń 2021-11-29 04:32 480阅读 0赞

## IDEA+Gradle搭建Spring Boot项目 ##

### 1. 环境准备: ###

*  Jdk1.8+
 *  Intellij IDEA
 *  gradle

### 2. 创建项目 ###

IDEA > File > New > Module(Project)…  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1NoZWxsZXlMaXR0bGVoZXJv_size_16_color_FFFFFF_t_70]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1NoZWxsZXlMaXR0bGVoZXJv_size_16_color_FFFFFF_t_70 1]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1NoZWxsZXlMaXR0bGVoZXJv_size_16_color_FFFFFF_t_70 2]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1NoZWxsZXlMaXR0bGVoZXJv_size_16_color_FFFFFF_t_70 3]  
完成后,项目的目录下只有两个文件:build.gradle和settings.gradle,接下来我们需要做一些配置.

### 3. 配置 ###

build.gradle文件，自动生成的内容为：

plugins {
        id 'java'
    }
    
    group 'com.ryze'
    version '1.0-SNAPSHOT'
    
    sourceCompatibility = 1.8
    
    repositories {
        mavenCentral()
    }
    
    dependencies {
        testCompile group: 'junit', name: 'junit', version: '4.12'
    }

修改后:

// buildscript必须在顶部，注意位置
    buildscript {
        repositories {
            // 优先使用国内源
            maven { url 'https://maven.aliyun.com/repository/public' }
            mavenCentral()
        }
        dependencies {
            // 让spring-boot支持gradle
            classpath("org.springframework.boot:spring-boot-gradle-plugin:2.1.1.RELEASE")
        }
    }
    
    plugins {
        id 'java'
        id 'org.springframework.boot' version '2.1.1.RELEASE'
    }
    
    apply plugin: 'java'
    apply plugin: 'idea'
    // 使用spring boot
    apply plugin: "org.springframework.boot"
    // 使用spring boot的自动依赖管理
    apply plugin: 'io.spring.dependency-management'
    
    group 'com.ryze'
    version '1.0-SNAPSHOT'
    
    sourceCompatibility = 1.8
    targetCompatibility = 1.8
    
    repositories {
        // 使用国内的源
        maven { url 'https://maven.aliyun.com/repository/public' }
        mavenCentral()
    }
    
    dependencies {
        compile 'org.springframework.boot:spring-boot-starter-web'
        testCompile 'org.springframework.boot:spring-boot-starter-test'
        compile group: 'io.netty', name: 'netty-all', version: '4.1.15.Final'
        testCompile group: 'junit', name: 'junit', version: '4.12'
    
    }

点击刷新,进行自动下载:  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1NoZWxsZXlMaXR0bGVoZXJv_size_16_color_FFFFFF_t_70 4]

### 4. 测试类编写 ###

1.在项目中新建目录 src/main/java（这是java默认可以识别的目录）

2.点选新建的 java 目录，右键选择 New > Package 新建一个包，包名：com.ryze  
3.新建Springboot启动类和测试Controller类:  
![在这里插入图片描述][20190722161236345.png]  
代码为:  
MainApplication :

@SpringBootApplication
    public class MainApplication { 
        public static void main(String[] args){ 
            SpringApplication.run(MainApplication.class,args);
        }
    }

HelloController :

@RestController
    public class HelloController { 
        @GetMapping("/")
        @ResponseBody
        public String hello(){ 
            return "hello gradle!";
        }
    }

### 5. 运行 ###

使用springboot方式启动,或者使用Gradle的命令bootrun启动.浏览器输入http://localhost:8080,可以看到输出.  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1NoZWxsZXlMaXR0bGVoZXJv_size_16_color_FFFFFF_t_70 5]

### UPDTAE: ###

异常Gradle 5 IntelJ java.lang.AbstractMethodError :  
[https://www.jianshu.com/p/f9951d5506fc][https_www.jianshu.com_p_f9951d5506fc]

### 更多学习: ###

[https://www.awaimai.com/2621.html][https_www.awaimai.com_2621.html] 参考  
[https://www.cnblogs.com/davenkin/p/gradle-learning-1.html][https_www.cnblogs.com_davenkin_p_gradle-learning-1.html]  
[https://gradle.org/][https_gradle.org] 官网

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[20190722161236345.png]: /images/20211129/0f2df6124ff54ddf91328a28937c8046.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1NoZWxsZXlMaXR0bGVoZXJv_size_16_color_FFFFFF_t_70 5]: /images/20211129/156388173c2446d78d30c350e85f72de.png
[https_www.jianshu.com_p_f9951d5506fc]: https://www.jianshu.com/p/f9951d5506fc
[https_www.awaimai.com_2621.html]: https://www.awaimai.com/2621.html
[https_www.cnblogs.com_davenkin_p_gradle-learning-1.html]: https://www.cnblogs.com/davenkin/p/gradle-learning-1.html
[https_gradle.org]: https://gradle.org/