创建springboot项目

深碍√TFBOYSˉ_ 2023-01-08 04:21 238阅读 0赞

> 为什么使用springboot，springboot的优点

1.  为所有spring开发者更快的入门
2.  开箱即用，提供各种默认的配置来简化项目的开发
3.  内嵌式容器简化web项目
4.  没有冗余的代码生成和XML配置的要求

#### 1.创建springboot项目 ####

1.  创建一个新项目，选择Spring Initializr，选择jdk版本
    
    ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mzg5NDc3MQ_size_16_color_FFFFFF_t_70][]
2.  填写项目信息，注意选择对应的java版本（java8对应jdk1.8）
    
    ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mzg5NDc3MQ_size_16_color_FFFFFF_t_70 1][]
3.  选择初始话的组件，这里我们勾选web选项下的spring web
    
    ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mzg5NDc3MQ_size_16_color_FFFFFF_t_70 2][]
4.  选择项目路径，点击finish，等待项目构建，springboot项目创建成功
    
    ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mzg5NDc3MQ_size_16_color_FFFFFF_t_70 3][]

#### 2.项目结构分析与简单测试 ####

###### 1.pom.xml分析 ######

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.5.RELEASE</version>
        <relativePath/>
    </parent>
    
    <dependencies>
        
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>
    
    <build>
        <plugins>
            
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

###### 2.编写接口测试 ######

1.  在主程序的同级目录下创建controller包，并创建一个HelloController
    
    ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mzg5NDc3MQ_size_16_color_FFFFFF_t_70 4][]
2.  hellocontroller的代码
    
        @Controller
        @RequestMapping("/hello")
        public class HelloController { 
            @GetMapping("/hello")
            @ResponseBody
            public String Hello(){ 
                return "hello,world";
            }
        }
3.  从主程序启动项目，并在网页输入localhost:8081/hello，选择自己服务启动对应的端口号，页面返回“hello，word”，项目创建成功  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mzg5NDc3MQ_size_16_color_FFFFFF_t_70 5]

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