使用SpringSecurity保护方法应用

(1)pom添加依赖

1     <dependency>
2       <groupId>org.springframework.security</groupId>
3       <artifactId>spring-security-core</artifactId>
4       <version>5.1.3.RELEASE</version>
5     </dependency>

(2)添加相应配置类

 1 package cn.coreqi.config;
 2 
 3 import org.springframework.context.annotation.Configuration;
 4 import org.springframework.security.access.expression.method.DefaultMethodSecurityExpressionHandler;
 5 import org.springframework.security.access.expression.method.MethodSecurityExpressionHandler;
 6 import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
 7 import org.springframework.security.config.annotation.method.configuration.GlobalMethodSecurityConfiguration;
 8 
 9 @Configuration
10 @EnableGlobalMethodSecurity(securedEnabled = true,jsr250Enabled = true,prePostEnabled = true) //启用基于注解的方法安全性
11 public class MethodSecurityConfig extends GlobalMethodSecurityConfiguration {
12     /**
13      * 注册自定义的表达式处理器
14      * @return
15      */
16 //    @Override
17 //    protected MethodSecurityExpressionHandler createExpressionHandler() {
18 //        DefaultMethodSecurityExpressionHandler expressionHandler = new DefaultMethodSecurityExpressionHandler();
19 //        expressionHandler.setPermissionEvaluator(new UserPermissionEvaluator());
20 //        return expressionHandler;
21 //    }
22 }

(3)dao使用相应的注解

仅仅作为参考

 1 package cn.coreqi.dao.redis;
 2 
 3 import cn.coreqi.entities.User;
 4 import org.springframework.security.access.annotation.Secured;
 5 import org.springframework.security.access.prepost.PostAuthorize;
 6 import org.springframework.security.access.prepost.PostFilter;
 7 import org.springframework.security.access.prepost.PreAuthorize;
 8 import org.springframework.security.access.prepost.PreFilter;
 9 import org.springframework.stereotype.Repository;
10 
11 import java.util.List;
12 
13 @Repository
14 public class UserRedis {
15     
16     @Secured("ROLE_ADMIN")  //限制只有ROLE_ADMIN权限才可以调用此方法
17     public List<User> getAll(){
18         return null;
19     }
20 
21     @PostAuthorize("returnObject.UserName == principal.username")    //方法返回时执行,根据表达式结果决定是否抛出安全性异常
22     public User getById(int Id){
23         return null;
24     }
25 
26     @PreAuthorize("hasRole('ROLE_ADMIN') or hasRole('ROLE_SYSTEM') and #user.UserName.length() <= 16") //在方法调用前执行,如果表达式不为true则阻止方法执行
27     public User modify(User user){
28         return null;
29     }
30 
31     public void delById(int Id){
32     }
33 
34     @PostFilter("hasRole('ROLE_ADMIN') && filterObject.Age < 18") //使用表达式计算该方法返回中的每一个成员,将计算结果为false的成员移除掉。
35     public List<User> findMeinv()
36     {
37         return null;
38     }
39 
40     @PreFilter("hasRole('ROLE_ADMIN') && targetObject.Name == 'admin'") //在方法调用前对参数中的每一个元素进行过滤,只有满足表达式的元素才会保留到集合中
41     public void batchAdd(List<User> users){
42 
43     }
44 }

 

(4)*(不重要)自定义表达式处理器,如何注册参考(2)

 1 package cn.coreqi.config;
 2 
 3 import org.springframework.security.access.PermissionEvaluator;
 4 import org.springframework.security.core.Authentication;
 5 
 6 import java.io.Serializable;
 7 
 8 /**
 9  * 自定义表达式处理器
10  */
11 public class UserPermissionEvaluator implements PermissionEvaluator {
12     @Override
13     public boolean hasPermission(Authentication authentication, Object o, Object o1) {
14         return false;
15     }
16 
17     @Override
18     public boolean hasPermission(Authentication authentication, Serializable serializable, String s, Object o) {
19         return false;
20     }
21 }

 

posted @ 2019-01-16 22:47  SpringCore  阅读(751)  评论(0编辑  收藏  举报