SSM整合前台后台交互的三级省市联动

前台发送Ajax请求,后台响应给前台,前台解析响应数据并且在页面加载

package com.alibaba.controller;

import com.alibaba.pojo.City;
import com.alibaba.service.CityService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

import java.util.List;

@Controller
public class CityController {
    @Autowired
    CityService cityService;

    @RequestMapping（“/“）
    public String index（） {
        return “city“;
    }

    @RequestMapping（“/city“）
    @ResponseBody
    public List findAllCity（int pid） {
        List citys = citySer

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2019-03-23 03:22  province_city\
     目录           0  2019-03-23 03:41  province_city\.idea\
     目录           0  2019-03-22 22:28  province_city\.idea\artifacts\
     文件         305  2019-03-22 22:15  province_city\.idea\artifacts\province_city_war.xml
     文件        5189  2019-03-22 22:28  province_city\.idea\artifacts\province_city_war_exploded.xml
     文件         638  2019-03-22 22:15  province_city\.idea\compiler.xml
     目录           0  2019-03-22 22:37  province_city\.idea\dictionaries\
     文件          90  2019-03-22 22:37  province_city\.idea\dictionaries\.xml
     文件         172  2019-03-22 22:15  province_city\.idea\encodings.xml
     目录           0  2019-03-22 22:37  province_city\.idea\inspectionProfiles\
     文件         551  2019-03-22 22:37  province_city\.idea\inspectionProfiles\Project_Default.xml
     文件         335  2019-03-22 22:37  province_city\.idea\inspectionProfiles\profiles_settings.xml
     目录           0  2019-03-22 22:28  province_city\.idea\libraries\
     文件         514  2019-03-22 22:28  province_city\.idea\libraries\Maven__aopalliance_aopalliance_1_0.xml
     文件         486  2019-03-22 22:28  province_city\.idea\libraries\Maven__com_alibaba_druid_1_0_9.xml
     文件         644  2019-03-22 22:28  province_city\.idea\libraries\Maven__com_fasterxml_jackson_core_jackson_annotations_2_4_0.xml
     文件         595  2019-03-22 22:28  province_city\.idea\libraries\Maven__com_fasterxml_jackson_core_jackson_core_2_4_2.xml
     文件         623  2019-03-22 22:28  province_city\.idea\libraries\Maven__com_fasterxml_jackson_core_jackson_databind_2_4_2.xml
     文件         547  2019-03-22 22:28  province_city\.idea\libraries\Maven__com_github_jsqlparser_jsqlparser_0_9.xml
     文件         613  2019-03-22 22:28  province_city\.idea\libraries\Maven__com_github_miemiedev_mybatis_paginator_1_2_15.xml
     文件         589  2019-03-22 22:28  province_city\.idea\libraries\Maven__com_github_pagehelper_pagehelper_3_4_2_fix.xml
     文件         536  2019-03-22 22:28  province_city\.idea\libraries\Maven__commons_codec_commons_codec_1_6.xml
     文件         605  2019-03-22 22:28  province_city\.idea\libraries\Maven__commons_fileupload_commons_fileupload_1_3_1.xml
     文件         517  2019-03-22 22:28  province_city\.idea\libraries\Maven__commons_io_commons_io_1_3_2.xml
     文件         572  2019-03-22 22:28  province_city\.idea\libraries\Maven__commons_logging_commons_logging_1_1_3.xml
     文件         514  2019-03-22 22:28  province_city\.idea\libraries\Maven__commons_net_commons_net_3_3.xml
     文件         494  2019-03-22 22:28  province_city\.idea\libraries\Maven__javax_servlet_jsp_api_2_0.xml
     文件         522  2019-03-22 22:28  province_city\.idea\libraries\Maven__javax_servlet_servlet_api_2_5.xml
     文件         492  2019-03-22 22:28  province_city\.idea\libraries\Maven__joda_time_joda_time_2_5.xml
     文件         437  2019-03-22 22:28  province_city\.idea\libraries\Maven__jstl_jstl_1_2.xml
     文件         448  2019-03-22 22:28  province_city\.idea\libraries\Maven__junit_junit_4_0.xml
............此处省略161个文件信息