uas-eis/eis-wms/src/main/java/com/uas/eiswms/aop/DataSourceInterceptor.java

package com.uas.eiswms.aop;

import com.uas.eiswms.dao.BaseDao;
import com.uas.eiswms.util.BaseUtil;
import com.uas.eiswms.util.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@Component
public class DataSourceInterceptor implements HandlerInterceptor {

    @Autowired
    private BaseDao baseDao;
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object o) throws Exception {
        // 账套处理
        if (StringUtils.isEmpty(request.getParameter("master"))) {
            BaseUtil.showError("账套为空!");
        }
        String master = request.getParameter("master");
        baseDao.setJdbcTemplate(master);
        return true;
    }

    /**
     * 该方法将在Controller执行之后，返回视图之前执行，modelAndView表示请求Controller处理之后返回的Model和View对象，所以可以在
     * 这个方法中修改modelAndView的属性，从而达到改变返回的模型和视图的效果。
     */
    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o,
                           ModelAndView modelAndView) throws Exception {

    }


    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse,
                                Object o, Exception e) throws Exception {

    }
}