Spring Security表单配置过程分步讲解

import org.springframework.security.authorization.AuthorizationDecision;
import org.springframework.security.authorization.AuthorizationManager;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.access.intercept.RequestAuthorizationContext;
import java.util.function.Supplier;
public class MyAuthorizationManager implements AuthorizationManager<RequestAuthorizationContext> {
    @Override
    public AuthorizationDecision check(Supplier<Authentication> authentication, RequestAuthorizationContext object) {
    	// ... 这里可以写授权逻辑
        // 返回true表示有权限
        return new AuthorizationDecision(true);
    }
}

@Bean
public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
      http.formLogin(form -> {
          form
                  .loginProcessingUrl("/login") // 接受登录请求的url，默认也是login
                  .loginPage("/toLogin") // 表单对应的url
                  .successForwardUrl("/success") // 登录成功后重定向的url
                  .failureForwardUrl("/failure") // 登录失败后重定向的url
                  ;
              })
              .authorizeHttpRequests(authorize -> {
                  // 授权所有请求都得经过授权
                  authorize.anyRequest().access(new MyAuthorizationManager());
              })
              .csrf().disable(); // 简单粗暴禁用csrf
      return http.build();
}

@Configuration
@EnableWebSecurity
@EnableMethodSecurity
public class SecurityConfig {
	// ... 省略配置
}

import org.springframework.security.access.prepost.PostAuthorize;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import security.demo.DataEntity;
import java.util.UUID;
@RestController
@RequestMapping("/admin")
public class AdminController {
    @GetMapping("/res/{id}")
    @PreAuthorize("hasAnyRole('admin')")
    public String getResById(@PathVariable("id") String id) {
        return id;
    }
    @GetMapping("/res/{id}")
    @PreAuthorize("hasAnyRole('admin')")
    @PostAuthorize("returnObject.creator == authentication.name")
    public DataEntity getDataEntityById(@PathVariable("id") String id) {
        String creator = UUID.randomUUID().toString();
        return DataEntity.builder().id(id).someData("一些数据").creator(creator).build();
    }
}

import lombok.Builder;
import lombok.Data;
@Data
@Builder
public class DataEntity {
    private String id;
    private String someData;
    private String creator;
}