springboot~security中自定义forbidden和unauthorized返回值

墨蓝 2024-03-22 19:32 57阅读 0赞

对于spring-security来说，当你访问一个受保护资源时，需要检查你的token，当没有传递，或者传递的token有错误时，将出现401unauthorized异常；当你传递的token是有效的，但解析后并没有访问这个资源的权限时，将返回403forbidden的异常，而你通过拦截器`@RestControllerAdvice`是不能重写这两个异常消息的，我们下面介绍重写这两种消息的方法。

## 两个接口 ##

*  AccessDeniedHandler 实现重写403的消息
 *  AuthenticationEntryPoint 实现重写401的消息

## 代码 ##

*  CustomAccessDeineHandler

public class CustomAccessDeineHandler implements AccessDeniedHandler {
    
      @Override
      public void handle(HttpServletRequest request, HttpServletResponse response,
                         AccessDeniedException accessDeniedException) throws IOException, ServletException {
        response.setCharacterEncoding("utf-8");
        response.setContentType("application/json;charset=utf-8");
        response.getWriter().print(JSONObject.toJSONString(CommonResult.forbiddenFailure("没有访问权限!")));
      }
    
    }

*  CustomAuthenticationEntryPoint

public class CustomAuthenticationEntryPoint implements AuthenticationEntryPoint {
    
      @Override
      public void commence(HttpServletRequest request, HttpServletResponse response,
                           AuthenticationException authException) throws IOException, ServletException {
        response.setCharacterEncoding("utf-8");
        response.setContentType("application/json;charset=utf-8");
        response.getWriter().print(JSONObject.toJSONString(CommonResult.unauthorizedFailure("需要先认证才能访问!")));
      }
    
    }

*  WebSecurityConfig.configure中添加注入代码

// 401和403自定义
      http.exceptionHandling().authenticationEntryPoint(new CustomAuthenticationEntryPoint())
          .accessDeniedHandler(new CustomAccessDeineHandler());

*  效果

//没有传token，或者token不合法
    {
        "code": 401,
        "message": "需要先认证才能访问!"
    }
    //token中没有权限
    {
        "code": 403,
        "message": "没有访问权限!"
    }