如何提供访问权限（Spring Security）[关闭]

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) 仅对管理员可用，为此他必须输入他的用户名和密码

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) 仅对管理员可用，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

我已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

为 http 元素启用表达式后，可以使用 URL 模式 保护如下：

@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

安全表达式可用于保护业务功能 方法级别也是如此，通过使用注释。

注解@PreAuthorize 和@PostAuthorize（以及 @PreFilter 和 @PostFilter) 支持 Spring 表达式语言 (SpEL) 并提供基于表达式的访问控制。

首先，为了使用方法级别的安全性，我们需要启用这个 在使用@EnableGlobalMethodSecurity 的安全配置中：

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

然后，我们可以使用 Spring @PreAuthorize 注解来保护方法：

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

---

对于这个例子更深入的解释，可以参考这个link