校园商铺-2项目设计和框架搭建-10验证controller

1.新建package：com.csj2018.o2o.web.superadmin
2.建立AreaController.java

package com.csj2018.o2o.web.superadmin;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import com.csj2018.o2o.entity.Area;
import com.csj2018.o2o.service.AreaService;

@Controller
@RequestMapping("/superadmin")
public class AreaController {
    @Autowired
    private AreaService areaService;
    @RequestMapping(value="/listarea", method=RequestMethod.GET)
    @ResponseBody
    private Map<String, Object> listArea(){
        Map<String, Object> modelMap = new HashMap<String, Object>();
        List<Area> list = new ArrayList<Area>();
        try {
            list = areaService.getAreaList();
            modelMap.put("rows", list);
            modelMap.put("total",list.size());
        }catch(Exception e) {
            e.printStackTrace();
            modelMap.put("success",false);
            modelMap.put("errMsg",e.toString());
        }
        return modelMap;
    }
}

访问URL：http://localhost:18080/oto/superadmin/listarea