详解SpringBoot 解决拦截器注入Service为空问题

详解SpringBoot 解决拦截器注入Service为空问题

一、自定义拦截器实现 HandlerInterceptor 接口

/**

*

* Created by zhh on 2018/04/20.

*/

public class MyInterceptor implements HandlerInterceptor {

@Autowiredhttp://

private NetworkProxyInfoService networkProxyInfoService;

@Override

public void afterCompletion(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, Exception arg3)

throws Exception {

// TODO Auto-generated method stub

}

@Override

public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, ModelAndView arg3)

throws Exception {

networkProxyInfoService.getAllNetworkProxyInfoByIsValid(GobalConstant.ProxyValid.VALID);

}

@Override

public boolean preHandle(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2) throws Exception {

// TODO Auto-generated method stub

return true;

}

}

二、自定义拦截器配置

/**

*

* Created by QwUVJlnVtzhh on 2018/04/20.

*/

@Configuration

public class MyWebMvcConfig extends WebMvcConfigurerAdapter {

/**

* 将自定义拦截器作为Bean写入配置

* @return

*/

@Bean

public MyInterceptor myInterceptor() {

return new MyInterceptor();

}

@Override

public void addInterceptors(InterceptorRegistry registry) {

/**

* 多个拦截器组成一个拦截器链

* addPathPatterns 用于添加拦截规则

* excludePathPatterns 用户排除拦截

*/

registry.addInterceptor(myInterceptor()).addPathPatterns("/**");

super.addInterceptorQwUVJlnVts(registry);

}

}

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