如何提供访问权限（Spring 安全）

Question

如何设置权限，以便只有管理员可以使用他的用户名和密码访问 JSP 页面。假设一个页面 (allStudents.jsp) 只对管理员可用，为此他必须输入他的用户名和密码

package adil.java.schoolmaven.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.annotation.Order;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.authentication.www.BasicAuthenticationFilter;
import org.springframework.stereotype.Component;

@Order(1)
@Configuration
@EnableWebSecurity
@Component
public class CustomWebSecurityConfigurerAdapter extends WebSecurityConfigurerAdapter {

    @Autowired
    private MyBasicAuthenticationEntryPoint authenticationEntryPoint;

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication()
          .withUser("admin").password(passwordEncoder().encode("1234"))
          .authorities("ROLE_ADMIN");
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
          .antMatchers("/securityNone").permitAll() //??????
          .anyRequest().authenticated()
          .and()
          .httpBasic()
          .authenticationEntryPoint(authenticationEntryPoint);

        http.addFilterAfter(new CustomFilter(),
          BasicAuthenticationFilter.class);
    }

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

enter image description here

我正在更改代码，请查看此代码

@Order(1)
@Configuration
@EnableWebSecurity
@Component
public class СostumWebSecurityConfigurerAdapter extends WebSecurityConfigurerAdapter {

    @Autowired
    private MyBasicAuthenticationEntryPoint authenticationEntryPoint;

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication()
          .withUser("admin").password(passwordEncoder().encode("1234"))
          .authorities("ROLE_ADMIN");
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
          .antMatchers("/allStudents").hasRole("ADMIN");
          .anyRequest().authenticated()
          .and()
          .httpBasic()
          .authenticationEntryPoint(authenticationEntryPoint);

        http.addFilterAfter(new CustomFilter(),
          BasicAuthenticationFilter.class);
    }

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

Answer 1

整页授权示例

With expressions enabled for the http element, an URL pattern can be secured as follows:

@Configuration
@EnableWebSecurity
public class SecSecurityConfig extends WebSecurityConfigurerAdapter {
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
          .authorizeRequests()
          .antMatchers("/allStudents").hasRole("ROLE_ADMIN"); // assuming this is your endpoint/controller for allStudents.jsp page
    }
}

方法级授权示例 – @PreAuthorize

Security Expressions can be used to secure business functionality at the method level as well, by using annotations.

The annotations @PreAuthorize and @PostAuthorize (as well as @PreFilter and @PostFilter) support Spring Expression Language (SpEL) and provide expression-based access control.

First, in order to use method level security, we need to enable this in the security configuration using @EnableGlobalMethodSecurity:

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {
   ...
}

Then, we can secure methods using the Spring @PreAuthorize annotation:

@Service
public class FooService {
    @PreAuthorize("hasRole('ROLE_ADMIN')")
    public List<Foo> findAll() { ... }
    ...
}

关于这个例子更深入的解释，你可以参考这个link

如何提供访问权限（Spring 安全）

How to provide access (Spring Security)

java

spring

spring-mvc

spring-security

jakarta-ee