SpringSecurity集成JWT实现后端认证授权保姆级教程-环境搭建篇

🍁 作者：知识浅谈，CSDN签约讲师，CSDN博客专家，华为云云享专家，阿里云专家博主
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🤞为什么这个东西我要分多篇写，我想说的是这个真不简单🤞
无论是shiro还是SpringSecurity，想要熟悉的使用，我们都要来回的摸索，各种认证和授权类，完全看的一塌糊涂，我不能说讲的很明白，只能说按教程一步步来能带你实现SpringSecurity集成JWT实现后端认证授权。

正菜来了🛴🛴🛴

🎈肯定先创建项目

直接springboot创建
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springboot选用2.7.6版本

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创建后打开

🎈再来创建各种文件夹和文件

之所以创建文件夹，下边要用到
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🎈再来引入各种依赖

pom.xml
如果自己项目路径和我的不一样：只需要引入下边的properties 和dependencies
有mysql依赖，redis依赖，security依赖，swagger依赖，相对来说比较全了

<?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><groupId>com.example</groupId><artifactId>demo</artifactId><version>0.0.1-SNAPSHOT</version><name>demo</name><description>demo</description><properties><java.version>1.8</java.version><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><spring-boot.version>2.7.6</spring-boot.version><jwt.verison>4.3.0</jwt.verison><fastjson.version>2.0.27</fastjson.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-security</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>com.mysql</groupId><artifactId>mysql-connector-j</artifactId></dependency><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.2.16</version></dependency><!-- https://mvnrepository.com/artifact/com.baomidou/mybatis-plus-boot-starter --><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>3.5.2</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency><dependency><groupId>com.auth0</groupId><artifactId>java-jwt</artifactId><version>${jwt.verison}</version></dependency><dependency><groupId>com.alibaba.fastjson2</groupId><artifactId>fastjson2</artifactId><version>${fastjson.version}</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-redis</artifactId></dependency><!-- https://mvnrepository.com/artifact/com.google.code.gson/gson --><dependency><groupId>com.google.code.gson</groupId><artifactId>gson</artifactId><version>2.10.1</version></dependency><!-- https://mvnrepository.com/artifact/com.github.xiaoymin/knife4j-spring-boot-starter --><dependency><groupId>com.github.xiaoymin</groupId><artifactId>knife4j-spring-boot-starter</artifactId><version>3.0.3</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>org.springframework.security</groupId><artifactId>spring-security-test</artifactId><scope>test</scope></dependency></dependencies><dependencyManagement><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-dependencies</artifactId><version>${spring-boot.version}</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><build><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.8.1</version><configuration><source>1.8</source><target>1.8</target><encoding>UTF-8</encoding></configuration></plugin><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>${spring-boot.version}</version><configuration><mainClass>com.example.demo.DemoApplication</mainClass><skip>true</skip></configuration><executions><execution><id>repackage</id><goals><goal>repackage</goal></goals></execution></executions></plugin></plugins></build></project>

🎈安装mysql和redis

安装Mysql(使用默认的3306端口)
在mysql中创建test数据库
设置账号：root 密码：password
安装Redis 不用设置密码（生产环境需要设置密码，使用默认的6379端口）

🎈填写配置文件

application.yml

# 应用服务 WEB 访问端口
server:port: 8080spring:datasource:url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8&serverTimezone=UTC  # 数据库连接URLusername: root  # 数据库用户名password: password # 数据库密码driver-class-name: com.mysql.cj.jdbc.Driver  # MySQL驱动程序类名type: com.alibaba.druid.pool.DruidDataSource  # 指定使用Druid连接池druid:initial-size: 5  # 初始化时建立物理连接的个数max-active: 20  # 最大连接池数量min-idle: 5  # 最小连接池数量max-wait: 60000  # 获取连接时最大等待时间，单位毫秒validation-query: SELECT 1 FROM DUAL  # 测试连接是否可用的SQL语句test-while-idle: true  # 保持连接池活跃地状态time-between-eviction-runs-millis: 60000  # 检查空闲连接的时间间隔，单位毫秒min-evictable-idle-time-millis: 300000  # 连接在连接池中最小空闲时间，单位毫秒filters: stat,wall,log4j2  # 配置Druid监控和防御SQL注入的过滤器data:redis:host: 127.0.0.1port: 6379database: 0mvc:pathmatch:matching-strategy: ant_path_matchermybatis-plus:mapper-locations: classpath:/mapper/*.xml # Mapper.xml文件所在路径typeAliasesPackage: com.example.demo.domain # 实体类包名configuration:log-impl: org.apache.ibatis.logging.stdout.StdOutImpl # 日志输出方式map-underscore-to-camel-case: true # 开启驼峰命名规则映射

🎈最后让项目跑起来

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到这里项目就运行起来了
上图里运行程序之后有一个密码
Using generated security password: 248b72f4-198a-48ef-929e-1f3f2cd51c79
这个是springsecurity自带的密码，当我们访问接口的时候要用到的，默认用户名是user

🍚写个接口测试一下

在controller文件夹创建一个controller

package com.example.demo.controller;import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;@Api(tags = "测试类")
@RestController
@RequestMapping("/test")
public class TestController {@ApiOperation(value = "测试方法")@GetMapping("/test")public String test(){return "test";}}