如何提供访问权限(Spring Security)

时间:2019-06-10 06:24:21

标签: java spring spring-mvc java-ee spring-security

如何正确设置权限,以便只有管理员才能使用其用户名和密码转到JSP页面。假设只有管理员可以使用页面(allStudents.jsp),为此,他必须输入用户名和密码

如何正确设置权限,以便只有管理员才能使用其用户名和密码转到JSP页面。假设只有管理员可以使用页面(allStudents.jsp),为此,他必须输入用户名和密码

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();
    }
}

1 个答案:

答案 0 :(得分:0)

整页授权示例

  

在为http元素启用表达式的情况下,可以使用以下网址格式   安全性如下:

CURLOPT_RETURNTRANSFER

方法级别授权示例– @PreAuthorize

  

安全表达式可用于保护位于以下位置的业务功能   方法级别,也可以使用注释。

     

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

     

首先,为了使用方法级安全性,我们需要启用此功能   在使用@EnableGlobalMethodSecurity的安全配置中:

@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
    }
}
  

然后,我们可以使用Spring @PreAuthorize批注来保护方法:

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

有关此示例的更多详细说明,您可以参考此link