一、入門案例

當前案例pom.xml配置

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
 

    </parent>

<dependencies>
        <!-- spring security -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <!-- spring 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>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

測試Controller

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

    @GetMapping("/hello")
    public String hello(){
        return "Spring Security";
    }
}

演示效果：

　　當引入了security時，spring會自動實現認證功能，此時訪問http://localhost:8080/test/hello時，會自動跳轉到http://localhost:8080/login處；

預設使用者名稱：user

預設密碼：當前專案執行控制檯打印出來的uuid

此時通過使用者名稱和密碼可以正常進行認證；