我想保护管理员面板。我已经添加到Spring Security:
.antMatchers("/admin/**").hasAuthority("ADMIN")
我的用户模型包含(实现UserDetails):
@Override
@OneToMany(fetch=FetchType.LAZY, mappedBy = "user", cascade = CascadeType.ALL)
@JsonIgnore
public Set<Authority> getAuthorities() {
return authorities;
}
public void setAuthorities(Set<Authority> authorities){
this.authorities = authorities;
}
授权模型包含(实现GrantedAuthority):
@ManyToOne
@JoinColumn(name="user_id")
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
问题:当我添加此行并使用andMatchers并尝试访问此控制器时,会显示错误:
<pre>java.lang.NullPointerException
org.springframework.security.core.authority.AuthorityUtils.authorityListToSet(AuthorityUtils.java:39)
org.springframework.security.access.expression.SecurityExpressionRoot.getAuthoritySet(SecurityExpressionRoot.java:128)
org.springframework.security.access.expression.SecurityExpressionRoot.hasRole(SecurityExpressionRoot.java:60)
org.springframework.security.access.expression.SecurityExpressionRoot.hasAuthority(SecurityExpressionRoot.java:52)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:483)
答案 0 :(得分:1)
由于安全评估可能是在事务外部进行的,因此请使用EAGER
获取权限。我还建议进行延迟初始化,以便该方法永远不会返回null
。
@OneToMany(fetch=FetchType.EAGER, mappedBy = "user", cascade = CascadeType.ALL)
public Set<Authority> getAuthorities() {
if (authorities == null)
authorities = new HashSet<Authority>();
return authorities;
}