springsecurity中自动效验token的过滤器
时间: 2023-10-10 19:13:55 浏览: 107
在Spring Security中,可以使用过滤器来自动验证令牌。具体来说,可以通过以下步骤实现:
1. 创建一个过滤器,用于验证令牌。
```java
public class JwtTokenAuthenticationFilter extends OncePerRequestFilter {
@Autowired
private JwtTokenProvider jwtTokenProvider;
@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
String token = jwtTokenProvider.resolveToken(request);
try {
if (StringUtils.hasText(token) && jwtTokenProvider.validateToken(token)) {
Authentication authentication = jwtTokenProvider.getAuthentication(token);
SecurityContextHolder.getContext().setAuthentication(authentication);
}
} catch (JwtException e) {
SecurityContextHolder.clearContext();
response.sendError(HttpStatus.UNAUTHORIZED.value(), "Invalid token");
return;
}
filterChain.doFilter(request, response);
}
}
```
2. 将过滤器添加到Spring Security的配置中。
```java
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Autowired
private JwtTokenAuthenticationFilter jwtTokenAuthenticationFilter;
@Override
protected void configure(HttpSecurity http) throws Exception {
http.csrf().disable()
.authorizeRequests()
.antMatchers("/api/auth/**").permitAll()
.anyRequest().authenticated()
.and()
.addFilterBefore(jwtTokenAuthenticationFilter, UsernamePasswordAuthenticationFilter.class);
}
}
```
在上述代码中,我们首先创建了一个JwtTokenAuthenticationFilter过滤器,用于验证令牌。然后,我们将这个过滤器添加到Spring Security的配置中,以便在处理请求时自动验证令牌。最后,我们将这个过滤器添加到UsernamePasswordAuthenticationFilter之前,确保它在处理请求时先进行验证。
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