Java拦截器

一、InterceptorRegister

package com.muen.interceptor;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;


@Configuration
public class InterceptorRegister extends WebMvcConfigurerAdapter {

    private static final Logger logger = LoggerFactory.getLogger(InterceptorRegister.class);

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        InterceptorRegistration ir = registry.addInterceptor(new MyInterceptor());
        /** 拦截所有路径 */
        /* ir.addPathPatterns("/**"); */
        /** 不拦截获取验证码请求路径 */
        /* ir.excludePathPatterns("/getBizId"); */
        /** 拦截个人中心 */
        ir.addPathPatterns("/Accounts/**");
        /** 拦截家庭档案 */
        ir.addPathPatterns("/FamilyFile/**");
        /** 拦截健康档案 */
        ir.addPathPatterns("/HealthyArchives/**");
        /** 健康自测 */
        ir.addPathPatterns("/HealthTest/**");
        /** 体检报告 */
        ir.addPathPatterns("/ExamineReport/**");
        /** 家庭医生 */
        ir.addPathPatterns("/familydoctor/**");
        /** 指标趋势 */
        ir.addPathPatterns("/canvasManage/**");
        super.addInterceptors(registry);
    }

}

二、MyInterceptor

package com.muen.interceptor;


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

import org.apache.log4j.Logger;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import com.muen.util.Constants;
import com.muen.util.StringUtils;


/**
 * @author MyPC
 */
public class MyInterceptor implements HandlerInterceptor {

    private Logger logger = Logger.getLogger(MyInterceptor.class);


    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
            throws Exception {
        logger.info("preHandle...");
        String path = request.getServletPath();
        // 不需要的拦截直接过;不需要拦截的请求配置在这个属性里面加
        if (path.matches(Constants.NO_INTERCEPTOR_PATH)) {
            return true;
        } else {
            // TODO:这写你拦截需要干的事儿，比如各种判断等
            //没有登录
            if (StringUtils.isBlank(request.getSession().getAttribute("personalInfo"))) {
                if (StringUtils.isBlank(request.getSession().getAttribute("personalBaseInfo"))) {
                    logger.info("没有登录，被拦截了，跳转到登录页面...");
                    request.getRequestDispatcher("/personal/login").forward(request, response);
                    return false;
                } else {
                    return true;
                }

            }
            return true;
        }
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
                           ModelAndView modelAndView) throws Exception {
        logger.info("postHandle...");

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
            throws Exception {
        logger.info("afterCompletion...");
    }


}

PS:根据项目需求自行修改