SpringBoot-拦截器配置
SpringBoot-拦截器配置
在我们的SSM项目中，可以在web.xml中配置拦截器，但是在SpringBoot中只能使用java类来配置，配置方法如下。
创建拦截器
- 首先创建一个类如MyInterceptor
- 实现HandlerInterceptor接口
- 重写其方法
package cn.ryafoo.core.interceptor;
import lombok.Builder;
import lombok.extern.slf4j.Slf4j;
import org.springframework.lang.Nullable;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* @author 张瑞丰
* @description
* @date 2019/11/19
*/
@Slf4j
public class MyInterepter implements HandlerInterceptor {
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
log.info("into my api");
return true;
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, @Nullable ModelAndView modelAndView) throws Exception {
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, @Nullable Exception ex) throws Exception {
}
}
加载拦截器
- 创建一个新类，如WebMvcConfig
- 实现WebMvcConfigurer
- 在其类上加入@Configuration注解
- 重写addInterceptors方法
- 在方法内加入拦截规则，如registry.addInterceptor(new MyInterceptor()).addPathPatterns("/**");
package cn.ryafoo.core.config;
import cn.ryafoo.core.interceptor.MyInterepter;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
/**
* @author 张瑞丰
* @description
* @date 2019/11/19
*/
@Configuration
public class WebMvcConfig implements WebMvcConfigurer {
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(new MyInterepter()).addPathPatterns("/**");
}
}