有没有办法在使用Spring执行Rest API之前验证令牌
我已经为休息控制器配置了弹簧靴。我创建了许多api,但我需要在乞讨时在每个api中验证我的令牌信息,是否已授权用户使用提供的令牌。
在登录期间,我会生成令牌,该令牌是每个api中访问信息所需的令牌。如果令牌无效,那么我需要返回消息Sorry, your provided token
information has been expired or not exists.
以下是我的API。
@RequestMapping(value="/delete", method= RequestMethod.DELETE)public Map<String, Object> delete(@RequestBody String reqData,HttpServletRequest request) {
Map<String, Object> m1 = new HashMap<String,Object>();
JSONObject jsonData = new JSONObject(reqData);
Token token= tokenDao.getByTokenCode(jsonData.getString("token"));
if(token==null){
m1.put("status", "error");
m1.put("message", "Sorry, your provided token information expired or not exists.");
return m1;
}
//here my logic to remove user from database.
}
有什么方法可以检查服务方法中的令牌功能或使用注释,因此我需要在每个api中删除相同的代码,并且需要使用一种通用功能。
回答:
您可以使用 来处理令牌。
将在任何RequestMapping之前执行。
在 验证您的令牌。如果令牌有效,则继续,否则抛出异常,控制器建议将处理其余部分。
公开MappedInterceptor的bean类,spring会自动加载Bean中包含的HandlerInterceptor。
和 可以捕获异常并返回错误消息
@RestController@EnableAutoConfiguration
public class App {
@RequestMapping("/")
public String index() {
return "hello world";
}
public static void main(String[] args) {
SpringApplication.run(App.class, args);
}
public static class MyException extends RuntimeException {
}
@Bean
@Autowired
public MappedInterceptor getMappedInterceptor(MyHandlerInterceptor myHandlerInterceptor) {
return new MappedInterceptor(new String[] { "/" }, myHandlerInterceptor);
}
@Component
public static class TestBean {
public boolean judgeToken(HttpServletRequest request) {
String token = request.getParameter("token");
if (token == null) {
throw new MyException();
}
return true;
}
}
@Component
public static class MyHandlerInterceptor implements HandlerInterceptor {
@Autowired
TestBean testBean;
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
throws Exception {
return testBean.judgeToken(request);
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
ModelAndView modelAndView) throws Exception {
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler,
Exception ex) throws Exception {
}
}
@ControllerAdvice
public static class MyExceptionHandler {
@ExceptionHandler(MyException.class)
@ResponseBody
public Map<String, Object> handelr() {
Map<String, Object> m1 = new HashMap<String, Object>();
m1.put("status", "error");
m1.put("message", "Sorry, your provided token information expired or not exists.");
return m1;
}
}
}
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