使用Tomcat启动Spring Boot时的用户名和密码是什么？

我认为你的类路径上有 Spring Security，然后 spring security 自动配置了默认用户和生成的密码

请查看您的 pom.xml 文件以了解：

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

如果你的 pom 中有这个，那么你应该有这样的日志控制台消息：

Using default security password: ce6c3d39-8f20-4a41-8e01-803166bb99b6

在浏览器提示中，您将导入用户 user 和控制台中打印的密码。

或者，如果您想配置 spring 安全性，您可以查看 Spring Boot secured example

它在 Security 部分的 Spring Boot 参考文档 中进行了解释，它表明：

The default AuthenticationManager has a single user (‘user’ username and random password, printed at `INFO` level when the application starts up)

Using default security password: 78fa095d-3f4c-48b1-ad50-e24c31d5cf35

---

如果在类路径中添加了 spring-security jar，并且如果它是 spring-boot 应用程序，则所有 http 端点都将由默认安全配置类 SecurityAutoConfiguration 保护

这会导致浏览器弹出窗口询问凭据。

每个应用程序的密码更改都会重新启动，并且可以在控制台中找到。

Using default security password: 78fa095d-3f4c-48b1-ad50-e24c31d5cf35

要在默认值之前添加您自己的应用程序安全层，

@EnableWebSecurity
public class SecurityConfig {

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth
            .inMemoryAuthentication()
                .withUser("user").password("password").roles("USER");
    }
}

或者，如果您只想更改密码，则可以覆盖默认值，

应用程序.xml

security.user.password=new_password

或者

应用程序属性

spring.security.user.name=<>
spring.security.user.password=<>

---

覆盖时

spring.security.user.name=
spring.security.user.password=

在 application.properties 中，您不需要在 "username" 周围使用 "，只需使用 username。还有一点，不是存储 原始密码，而是使用 bcrypt/scrypt 对其进行加密并将其存储为

spring.security.user.password={bcrypt}encryptedPassword

---

如果您无法根据指向默认密码的其他答案找到密码，则最近版本中的日志消息措辞更改为

Using generated security password: <some UUID>

---

您还可以向用户询问凭据并在服务器启动后动态设置它们（当您需要在客户环境中发布解决方案时非常有效）：

@EnableWebSecurity
public class SecurityConfig {

    private static final Logger log = LogManager.getLogger();

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        log.info("Setting in-memory security using the user input...");

        Scanner scanner = new Scanner(System.in);
        String inputUser = null;
        String inputPassword = null;
        System.out.println("\nPlease set the admin credentials for this web application");
        while (true) {
            System.out.print("user: ");
            inputUser = scanner.nextLine();
            System.out.print("password: ");
            inputPassword = scanner.nextLine();
            System.out.print("confirm password: ");
            String inputPasswordConfirm = scanner.nextLine();

            if (inputUser.isEmpty()) {
                System.out.println("Error: user must be set - please try again");
            } else if (inputPassword.isEmpty()) {
                System.out.println("Error: password must be set - please try again");
            } else if (!inputPassword.equals(inputPasswordConfirm)) {
                System.out.println("Error: password and password confirm do not match - please try again");
            } else {
                log.info("Setting the in-memory security using the provided credentials...");
                break;
            }
            System.out.println("");
        }
        scanner.close();

        if (inputUser != null && inputPassword != null) {
             auth.inMemoryAuthentication()
                .withUser(inputUser)
                .password(inputPassword)
                .roles("USER");
        }
    }
}

（2018 年 5 月）更新 - 这将适用于 spring boot 2.x：

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    private static final Logger log = LogManager.getLogger();

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        // Note: 
        // Use this to enable the tomcat basic authentication (tomcat popup rather than spring login page)
        // Note that the CSRf token is disabled for all requests
        log.info("Disabling CSRF, enabling basic authentication...");
        http
        .authorizeRequests()
            .antMatchers("/**").authenticated() // These urls are allowed by any authenticated user
        .and()
            .httpBasic();
        http.csrf().disable();
    }

    @Bean
    public UserDetailsService userDetailsService() {
        log.info("Setting in-memory security using the user input...");

        String username = null;
        String password = null;

        System.out.println("\nPlease set the admin credentials for this web application (will be required when browsing to the web application)");
        Console console = System.console();

        // Read the credentials from the user console: 
        // Note: 
        // Console supports password masking, but is not supported in IDEs such as eclipse; 
        // thus if in IDE (where console == null) use scanner instead:
        if (console == null) {
            // Use scanner:
            Scanner scanner = new Scanner(System.in);
            while (true) {
                System.out.print("Username: ");
                username = scanner.nextLine();
                System.out.print("Password: ");
                password = scanner.nextLine();
                System.out.print("Confirm Password: ");
                String inputPasswordConfirm = scanner.nextLine();

                if (username.isEmpty()) {
                    System.out.println("Error: user must be set - please try again");
                } else if (password.isEmpty()) {
                    System.out.println("Error: password must be set - please try again");
                } else if (!password.equals(inputPasswordConfirm)) {
                    System.out.println("Error: password and password confirm do not match - please try again");
                } else {
                    log.info("Setting the in-memory security using the provided credentials...");
                    break;
                }
                System.out.println("");
            }
            scanner.close();
        } else {
            // Use Console
            while (true) {
                username = console.readLine("Username: ");
                char[] passwordChars = console.readPassword("Password: ");
                password = String.valueOf(passwordChars);
                char[] passwordConfirmChars = console.readPassword("Confirm Password: ");
                String passwordConfirm = String.valueOf(passwordConfirmChars);

                if (username.isEmpty()) {
                    System.out.println("Error: Username must be set - please try again");
                } else if (password.isEmpty()) {
                    System.out.println("Error: Password must be set - please try again");
                } else if (!password.equals(passwordConfirm)) {
                    System.out.println("Error: Password and Password Confirm do not match - please try again");
                } else {
                    log.info("Setting the in-memory security using the provided credentials...");
                    break;
                }
                System.out.println("");
            }
        }

        // Set the inMemoryAuthentication object with the given credentials:
        InMemoryUserDetailsManager manager = new InMemoryUserDetailsManager();
        if (username != null && password != null) {
            String encodedPassword = passwordEncoder().encode(password);
            manager.createUser(User.withUsername(username).password(encodedPassword).roles("USER").build());
        }
        return manager;
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
}

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除了接受的答案 -

如果日志中未显示密码，请启用“org.springframework.boot.autoconfigure.security”日志。

如果您微调日志配置，请确保将 org.springframework.boot.autoconfigure.security 类别设置为记录 INFO 消息，否则不会打印默认密码。

https://docs.spring.io/spring-boot/docs/1.4.0.RELEASE/reference/htmlsingle/#boot-features-security

---

首先，只需将以下内容添加到您的 application.properties 文件中

spring.security.user.name=user
spring.security.user.password=pass

注意：没有双引号

运行您的应用程序并输入凭据（用户、密码）

---

从 Spring Security 版本 5.7.1 开始，默认用户名是 user，密码是随机生成的并显示在控制台中（例如 8e557245-73e2-4286-969a-ff57fe326336）。

请参阅文档以获取更多详细信息：

https://docs.spring.io/spring-security/reference/servlet/getting-started.html

---

当我开始学习 Spring Security 时，我重写了 userDetailsService() 方法，如下面的代码片段所示：

@Configuration
@EnableWebSecurity
public class ApplicationSecurityConfiguration extends WebSecurityConfigurerAdapter{

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                .csrf().disable()
                .authorizeRequests()
                .antMatchers("/", "/index").permitAll()
                .anyRequest().authenticated()
                .and()
                .httpBasic();
    }

    @Override
    @Bean
    public UserDetailsService userDetailsService() {
        List<UserDetails> users= new ArrayList<UserDetails>();
        users.add(User.withDefaultPasswordEncoder().username("admin").password("nimda").roles("USER","ADMIN").build());
        users.add(User.withDefaultPasswordEncoder().username("Spring").password("Security").roles("USER").build());
        return new InMemoryUserDetailsManager(users);
    }
}

因此我们可以使用上述凭据登录应用程序。 （例如管理员/nimda）

注意：我们不应该在生产中使用它。

---

尝试从您项目中的以下代码片段中获取用户名和密码并登录，希望这能奏效。

@Override
    @Bean
    public UserDetailsService userDetailsService() {
        List<UserDetails> users= new ArrayList<UserDetails>();
        users.add(User.withDefaultPasswordEncoder().username("admin").password("admin").roles("USER","ADMIN").build());
        users.add(User.withDefaultPasswordEncoder().username("spring").password("spring").roles("USER").build());
        return new UserDetailsManager(users);
    }

---