【idea&spring boot】搭建简易的spring boot项目（基于maven）！

一、创建项目

1、打开idea，file--new--project

 

 

 2、选择spring initializr，并点击next

 

 

 3、填写一些基本的信息

 

 

 4、选择spring web项目，然后点击下一步

 

 

 5、项目存放的路径，确认后点击finish

 

 

 

二、项目配置

1、在src/main/java/com/test/DemoApplication.java下面的代码配置如下（如有不同请修改）

package com.test;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication(scanBasePackages = {"com.test"})
public class DemoApplication {

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

这是项目启动的入口，启动后会扫描com.test下的所有注解并加载

2、在resources/application.properties下面需要配置项目的启动参数等其他参数（有的文件是以yml结尾，但如果只有一个服务可默认不配置，默认启动tomcat为中间件，端口号为8080）

server.port=8082
spring.application.name=demo
spring.mvc.static-path-pattern=/**

3、代码分层就不需要说了，上一节已经讲过，代码分层不区分spring boot还是spring mvc，把各自的代码放到对应的位置

package com.test.controller;

import com.test.services.impl.CommonServiceImpl;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@RestController
@RequestMapping("/common")
public class TestController {

    @CrossOrigin
    @RequestMapping(value ="/getSMSRecord",method =  RequestMethod.GET,produces = "text/html;charset=utf8")
    public String test(HttpServletRequest req, HttpServletResponse res){
        String mobile = req.getParameter("mobile");
        String env = req.getParameter("env");
        return "fail";
    }
}

注意：这是controller层的代码，与spring mvc一致，注解大家都可以用，不做过多说明

至此可进入到DemoApplication.java代码中启动服务了，然后进行web访问。若想再src/test/java本地运行代码，则需要导入junit

3、附录的pom.xml的配置

<?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>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.4.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.test</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <java.version>1.8</java.version>
        <mybatis-spring-boot-starter.version>2.0.0</mybatis-spring-boot-starter.version>
        <mybatis-generator-core.version>1.3.7</mybatis-generator-core.version>
        <druid-spring-boot-starter.version>1.1.17</druid-spring-boot-starter.version>
        <log4j.version>1.2.17</log4j.version>
        <slf4j-api.version>1.7.26</slf4j-api.version>
        <poi-ooxml.version>4.0.1</poi-ooxml.version>
        <kaptcha.version>0.0.9</kaptcha.version>
        <spring-boot-admin-starter-client.version>2.0.4</spring-boot-admin-starter-client.version>
        <metadata-extractor.version>2.9.1</metadata-extractor.version>
        <json-path.version>2.4.0</json-path.version>
    </properties>

    <dependencies>

        <!-- 打war包时加入此项， 告诉spring-boot tomcat相关jar包用外部的，不要打进去 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>

        <!-- web -->
        <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>

        <!-- spring aop -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>

        <!--热部署依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>

        <!-- log4j -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>${log4j.version}</version>
        </dependency>

        <!-- slf4j -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${slf4j-api.version}</version>
        </dependency>

        <!-- poi -->
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>${poi-ooxml.version}</version>
        </dependency>

        <!-- kaptcha -->
        <dependency>
            <groupId>com.github.axet</groupId>
            <artifactId>kaptcha</artifactId>
            <version>${kaptcha.version}</version>
        </dependency>

        <!--spring-boot-admin-client-->
        <dependency>
            <groupId>de.codecentric</groupId>
            <artifactId>spring-boot-admin-starter-client</artifactId>
            <version>${spring-boot-admin-starter-client.version}</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.drewnoakes/metadata-extractor -->
        <dependency>
            <groupId>com.drewnoakes</groupId>
            <artifactId>metadata-extractor</artifactId>
            <version>${metadata-extractor.version}</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.jayway.jsonpath/json-path -->
        <dependency>
            <groupId>com.jayway.jsonpath</groupId>
            <artifactId>json-path</artifactId>
            <version>${json-path.version}</version>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.0</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.72</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/junit/junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13</version>
<!--            <scope>test</scope>-->
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.12</version>
        </dependency>


    </dependencies>

    <!--spring cloud-->
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Finchley.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <finalName>demo</finalName>
        <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
            <plugins>
                <plugin>
                    <artifactId>maven-clean-plugin</artifactId>
                    <version>3.1.0</version>
                </plugin>
                <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
                <plugin>
                    <artifactId>maven-resources-plugin</artifactId>
                    <version>3.0.2</version>
                </plugin>
                <plugin>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.8.0</version>
                </plugin>
                <plugin>
                    <artifactId>maven-surefire-plugin</artifactId>
                    <version>2.22.1</version>
                </plugin>
                <plugin>
                    <artifactId>maven-war-plugin</artifactId>
                    <version>3.2.2</version>
                </plugin>
                <plugin>
                    <artifactId>maven-install-plugin</artifactId>
                    <version>2.5.2</version>
                </plugin>
                <plugin>
                    <artifactId>maven-deploy-plugin</artifactId>
                    <version>2.8.2</version>
                </plugin>
            </plugins>
        </pluginManagement>

        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>2.2-beta-5</version>
                <configuration>
                    <archive>
                        <manifest>
                            <mainClass>com.test.services.*</mainClass>
                        </manifest>
                    </archive>
                </configuration>
                <executions>
                    <execution>
                        <id>make-assembly</id>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <!-- 下面是打jar包相关插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>2.4</version>
            </plugin>
        </plugins>
        <resources>
            <!-- 下面的resource是自己工程中所需要的配置文件 -->
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.xml</include>
                    <include>**/*.properties</include>
                </includes>
                <filtering>false</filtering>
            </resource>
        </resources>
    </build>

</project>

 

注意：用不到的时候不要配置有关数据库的jar包依赖，否则spring boot启动时会检测pom的配置与application文件的配置是否一致，若application没配置数据库相关连接，则启动报错。