SpringBoot入门（14）- SpringBoot 中使用拦截器

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1、实现拦截器接口HandlerInterceptor

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.HandlerInterceptor;

public class LogHandlerInterceptor implements HandlerInterceptor {

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
			throws Exception {
		System.out.println("=====preHandle=========="+handler.getClass());
		return true;
	}
}

2、新类继承WebMvcConfigurerAdapter，注册拦截器

import org.springframework.boot.SpringBootConfiguration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

import com.zemel.test.rest.LogHandlerInterceptor;

@SpringBootConfiguration
public class WebConfig extends WebMvcConfigurerAdapter{

	@Override
	public void addInterceptors(InterceptorRegistry registry) {
		registry.addInterceptor(new LogHandlerInterceptor());
	}
}