SpringSecurity Demo 创建项目的过程详解_Java

环境说明

jdk 版本：

c:\users\jzadmin>java -version
java version "21.0.10" 2026-01-20 lts
java(tm) se runtime environment (build 21.0.10+8-lts-217)
java hotspot(tm) 64-bit server vm (build 21.0.10+8-lts-217, mixed mode, sharing)
c:\users\jzadmin>

mysql 版本：8.4.7
springboot 版本：3.2.4

创建项目

代码已推送至 gitee 仓库：springdecurity-demo

项目创建完成后，结构如下：

file -->> new -->> project

填写项目信息

修改 pom.xml 文件，引入后续需使用到依赖包。

<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">
  <parent>
    <groupid>org.springframework.boot</groupid>
    <artifactid>spring-boot-starter-parent</artifactid>
    <version>3.2.4</version>
    <relativepath/>
    <!--  lookup parent from repository  -->
  </parent>
  <modelversion>4.0.0</modelversion>
  <groupid>com.junjiu.springboot3</groupid>
  <artifactid>security-demo</artifactid>
  <version>1.0-snapshot</version>
  <packaging>jar</packaging>
  <name>security-demo</name>
  <url>http://maven.apache.org</url>
  <properties>
    <project.build.sourceencoding>utf-8</project.build.sourceencoding>
    <mybatis-plus.version>3.5.10.1</mybatis-plus.version>
    <fastjson2.version>2.0.51</fastjson2.version>
    <druid.version>1.2.23</druid.version>
    <junit.version>4.13.2</junit.version>
  </properties>
  <dependencymanagement>
    <dependencies>
      <dependency>
        <groupid>com.baomidou</groupid>
        <artifactid>mybatis-plus-bom</artifactid>
        <version>${mybatis-plus.version}</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
    </dependencies>
  </dependencymanagement>
  <dependencies>
    <dependency>
      <groupid>org.springframework.boot</groupid>
      <artifactid>spring-boot-starter-web</artifactid>
    </dependency>
    <dependency>
      <groupid>com.alibaba</groupid>
      <artifactid>druid-spring-boot-starter</artifactid>
      <version>${druid.version}</version>
    </dependency>
<!--    <dependency>-->
<!--      <groupid>org.springframework.boot</groupid>-->
<!--      <artifactid>spring-boot-starter-jdbc</artifactid>-->
<!--    </dependency>-->
    <!-- mybatis-plus 依赖
            https://baomidou.com/getting-started/
        -->
    <!-- spring boot3 引入可选模块 -->
    <dependency>
      <groupid>com.baomidou</groupid>
      <artifactid>mybatis-plus-spring-boot3-starter</artifactid>
    </dependency>
    <!-- jdk 11+ 引入可选模块 -->
    <dependency>
      <groupid>com.baomidou</groupid>
      <artifactid>mybatis-plus-jsqlparser</artifactid>
    </dependency>
    <dependency>
      <groupid>com.mysql</groupid>
      <artifactid>mysql-connector-j</artifactid>
      <scope>runtime</scope>
    </dependency>
<!--    <dependency>-->
<!--      <groupid>com.huawei.gaussdb</groupid>-->
<!--      <artifactid>gaussdbjdbc</artifactid>-->
<!--      <version>1.0</version>-->
<!--    </dependency>-->
    <dependency>
      <groupid>org.projectlombok</groupid>
      <artifactid>lombok</artifactid>
      <optional>true</optional>
    </dependency>
    <dependency>
      <groupid>com.alibaba.fastjson2</groupid>
      <artifactid>fastjson2</artifactid>
      <version>${fastjson2.version}</version>
    </dependency>
<!--    <dependency>-->
<!--      <groupid>com.github.xiaoymin</groupid>-->
<!--      <artifactid>knife4j-openapi3-jakarta-spring-boot-starter</artifactid>-->
<!--      <version>4.5.0</version>-->
<!--    </dependency>-->
    <!--    <dependency>-->
    <!--      <groupid>org.springdoc</groupid>-->
    <!--      <artifactid>springdoc-openapi-starter-webmvc-ui</artifactid>-->
    <!--      <version>2.0.4</version>-->
    <!--    </dependency>-->
    <!--    <dependency>-->
    <!--      <groupid>org.apache.commons</groupid>-->
    <!--      <artifactid>commons-dbcp2</artifactid>-->
    <!--      <version>2.13.0</version>-->
    <!--    </dependency>-->
    <!--    <dependency>-->
    <!--      <groupid>commons-dbcp</groupid>-->
    <!--      <artifactid>commons-dbcp</artifactid>-->
    <!--      <version>1.4</version>-->
    <!--    </dependency>-->
    <!-- 数据源依赖 -->
    <!--    <dependency>-->
    <!--      <groupid>org.springframework.boot</groupid>-->
    <!--      <artifactid>spring-boot-starter-data-jpa</artifactid>-->
    <!--    </dependency>-->
<!--    <dependency>-->
<!--      <groupid>ch.qos.logback.db</groupid>-->
<!--      <artifactid>logback-classic-db</artifactid>-->
<!--      <version>1.2.11.1</version>-->
<!--    </dependency>-->
    <dependency>
      <groupid>cn.hutool</groupid>
      <artifactid>hutool-all</artifactid>
      <version>5.8.36</version>
    </dependency>
    <dependency>
      <groupid>org.springframework.boot</groupid>
      <artifactid>spring-boot-starter-test</artifactid>
    </dependency>
    <!--    <dependency>-->
    <!--      <groupid>junit</groupid>-->
    <!--      <artifactid>junit</artifactid>-->
    <!--      <scope>test</scope>-->
    <!--      <version>${junit.version}</version>-->
    <!--    </dependency>-->
  </dependencies>
  <build>
    <plugins>
      <plugin>
        <groupid>org.apache.maven.plugins</groupid>
        <artifactid>maven-compiler-plugin</artifactid>
      </plugin>
      <plugin>
        <groupid>org.springframework.boot</groupid>
        <artifactid>spring-boot-maven-plugin</artifactid>
      </plugin>
    </plugins>
  </build>
</project>

修改 application.yml 配置文件

server:
  port: 5826
spring:
  application:
    name: security-demo
  datasource:
    type: com.alibaba.druid.pool.druiddatasource
    driver-class-name: com.mysql.cj.jdbc.driver
    url: jdbc:mysql://localhost:3306/security?useunicode=true&characterencoding=utf8&zerodatetimebehavior=converttonull&usessl=
    username: root
    password: 123456

新建 hellocontroller ,用于启动项目功能测试。

package com.junjiu.springboot3.controller;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.restcontroller;
/**
 * program: security-demo
 * classname: hellocontroller
 * description:
 *
 * @author: 君九
 * @create: 2026-04-01 14:30
 * @version: 1.0
 **/
@restcontroller
public class hellocontroller {
    @requestmapping("/hello")
    public string hello(){
        return "hello ~ 君九";
    }
}

创建启动类 securityapplication

package com.junjiu.springboot3;
import org.springframework.boot.springapplication;
import org.springframework.boot.autoconfigure.springbootapplication;
import org.springframework.boot.autoconfigure.jdbc.datasourceautoconfiguration;
/**
 * program: security-demo
 * classname: securityapplication
 * description:
 *
 * @author: 君九
 * @create: 2026-04-01 14:30
 * @version: 1.0
 **/
//@springbootapplication(exclude = {
//        datasourceautoconfiguration.class
//})
@springbootapplication
public class securityapplication {
    public static void main(string[] args) {
        springapplication.run(securityapplication.class, args);
    }
}