<?php 
header("Content-type: text/html; charset=utf-8");  
 
$type=$_REQUEST["type"];//獲取省市區(qū)的標(biāo)志 
$fcode=$_GET["fcode"]; 
 
$retArr=[ 
  "status"=>true, 
  "data"=>[], 
  "msg"=>"" 
]; 
 
if($type!="province" && $type!="city" && $type!="county"){ 
  $retArr["status"]=false; 
  $retArr["msg"]="獲取地區(qū)類型錯(cuò)誤，請(qǐng)檢查"; 
   
  echo json_encode($retArr); 
  exit; 
} 
 
function getProvince(){ 
  $province=[]; 
  $code=["110000", "350000", "710000"]; 
  $province["code"]=$code; 
  $name=["北京市", "福建省", "臺(tái)灣省"]; 
  $province["name"]=$name; 
  $fcode=["0", "0", "0"]; 
  $province["fcode"]=$fcode; 
  return $province; 
} 
function getCity($P_fcode){ 
  $city=[]; 
  $code=[]; 
  $name=[]; 
  $fcode=[]; 
  if($P_fcode=="110000"){ 
    $code=["110100"]; 
    $name=["北京市"]; 
    $fcode=$P_fcode; 
  } 
  if($P_fcode=="350000"){ 
    $code=["350100", "350200", "350300", "350400", "350500", "350600", "350700", "350800", "350900"]; 
    $name=["福州市", "廈門市", "莆田市", "三明市", "泉州市", "漳州市", "南平市", "龍巖市", "寧德市"]; 
    $fcode=$P_fcode; 
  } 
  if($P_fcode=="710000"){ 
     
  } 
  $city=["code"=>$code, "name"=>$name, "fcode"=>$fcode]; 
  return $city; 
} 
function getCounty($P_fcode){ 
  $county=[]; 
  $code=[]; 
  $name=[]; 
  $fcode=[];  
  if($P_fcode=="110100"){ 
    $code=["110101", "110102", "110103", "110104", "110105", "110106", "110107"]; 
    $name=["東城區(qū)", "西城區(qū)", "崇文區(qū)", "宣武區(qū)", "朝陽(yáng)區(qū)", "豐臺(tái)區(qū)", "石景山區(qū)"]; 
    $fcode=$P_fcode; 
  } 
  if($P_fcode=="350100"){ 
    $code=["350102", "350103", "350104"]; 
    $name=["鼓樓區(qū)", "臺(tái)江區(qū)", "蒼山區(qū)"]; 
    $fcode=$P_fcode; 
  } 
  if($P_fcode=="350200"){ 
    $code=["350203", "350205", "350206"]; 
    $name=["思明區(qū)", "海滄區(qū)", "湖里區(qū)"]; 
    $fcode=$P_fcode; 
  } 
  $county=["code"=>$code, "name"=>$name, "fcode"=>$fcode]; 
  return $county; 
} 
 
//var_dump($province); 
if($type=="province"){ 
  $province=getProvince(); 
  $retArr["data"]=$province;  
}else if($type=="city"){ 
  $city=getCity($fcode); 
  $retArr["data"]=$city; 
}else if($type="county"){ 
  $county=getCounty($fcode); 
  $retArr["data"]=$county; 
} 
 
echo json_encode($retArr); 
 
 
?> 

<template name="city"> 
<view class="areas"> 
 <view class="province"> 
  <picker bindchange="provincePickerChange" value="{{provinceIndex}}" range="{{province.name}}" data-city-url="{{cityUrl}}"> 
  <text class="select-item">{{province.name[provinceIndex]}}</text> 
  </picker> 
 </view> 
 
 <view class="city"> 
 <block wx:if="{{!city.name.length}}"> --二級(jí)市區(qū)-- </block> 
 <block wx:if="{{city.name.length>0}}">  
  <picker bindchange="cityPickerChange" value="{{cityIndex}}" range="{{city.name}}" data-county-url="{{countyUrl}}"> 
   <text class="select-item">{{city.name[cityIndex]}}</text> 
  </picker> 
 </block> 
 </view> 
 
 <view class="county"> 
 <block wx:if="{{!county.name.length}}"> --三級(jí)地區(qū)-- </block> 
 <block wx:if="{{county.name.length>0}}"> 
  <picker bindchange="countyPickerChange" value="{{countyIndex}}" range="{{county.name}}"> 
   <text class="select-item">{{county.name[countyIndex]}}</text> 
  </picker> 
 </block> 
 </view> 
 
</view> 
</template> 

/** 
 * 獲取三級(jí)聯(lián)動(dòng)的三個(gè)函數(shù) 
 * that:  注冊(cè)頁(yè)面的this實(shí)例 必填 
 * p_url: 一級(jí)省份url 必填 
 * p_data：一級(jí)省份參數(shù) 選填 
 */ 
var net = require( "net" );//引入request方法 
var g_url, g_datd, g_cbSuccess, g_cbSuccessErr, g_cbFail, g_cbComplete, g_header, g_method; 
 
function initCityFun( that, p_url, p_data ) { 
  //獲取一級(jí)省份數(shù)據(jù) 
  g_cbSuccess = function( res ) { 
   that.setData( { 
    'city.province': res 
   }); 
  }; 
  net.r( p_url, p_data, g_cbSuccess, g_cbSuccessErr, g_cbFail, g_cbComplete, g_header, g_method ); 
 
  //點(diǎn)擊一級(jí)picker觸發(fā)事件并獲取市區(qū)方法 
  var changeProvince = function( e ) { 
    that.setData( { 
      'city.provinceIndex': e.detail.value 
    }); 
    var _fcode = that.data.city.province.code[ e.detail.value ]; 
    if( !_fcode ) { 
      _fcode = 0; 
    } 
    var _cityUrl = e.target.dataset.cityUrl; 
 
    g_url = _cityUrl + _fcode; 
    g_cbSuccess = function( res ) { 
      that.setData( { 
        'city.city': res 
      }); 
    } 
    net.r( g_url, g_datd, g_cbSuccess, g_cbSuccessErr, g_cbFail, g_cbComplete, g_header, g_method ); 
  }; 
  that[ "provincePickerChange" ] = changeProvince; 
 
  //點(diǎn)擊二級(jí)picker觸發(fā)事件并獲取地區(qū)方法 
  var changeCity = function( e ) { 
    that.setData( { 
      'city.cityIndex': e.detail.value 
    }); 
    var _fcode = that.data.city.city.code[ e.detail.value ]; 
    if( !_fcode ) { 
      _fcode = 0; 
    } 
    var _countyUrl = e.target.dataset.countyUrl; 
    g_url = _countyUrl + _fcode; 
 
    g_cbSuccess = function( res ) { 
      that.setData( { 
        'city.county': res 
      }); 
    }; 
    net.r( g_url, g_datd, g_cbSuccess, g_cbSuccessErr, g_cbFail, g_cbComplete, g_header, g_method ); 
  }; 
  that[ "cityPickerChange" ] = changeCity; 
 
  //點(diǎn)擊三級(jí)picker觸發(fā)事件 
  var changeCounty = function( e ) { 
    that.setData( { 
      'city.countyIndex': e.detail.value 
    }); 
  }; 
  that["countyPickerChange"]=changeCounty; 
} 
 
function getProvinceFun(that, p_url, p_data){ 
  g_cbSuccess = function( res ) { 
   that.setData( { 
    'city.province': res 
   }); 
  }; 
  net.r( p_url, p_data, g_cbSuccess, g_cbSuccessErr, g_cbFail, g_cbComplete, g_header, g_method ); 
} 
 
module.exports={ 
  initCityFun: initCityFun, 
  getProvinceFun: getProvinceFun 
} 

/** 
 * 網(wǎng)絡(luò)發(fā)送http請(qǐng)求,默認(rèn)為返回類型為json 
 *  
 * url: 必須,其他參數(shù)非必須 接口地址 
 * data:請(qǐng)求的參數(shù) Object或String 
 * successFun(dts):成功返回的回調(diào)函數(shù)，已自動(dòng)過(guò)濾微信端添加數(shù)據(jù),按接口約定,返回成功后的data數(shù)據(jù),過(guò)濾掉msg和status 
 * successErrorFun(msg):成功執(zhí)行請(qǐng)求,但是服務(wù)端認(rèn)為業(yè)務(wù)錯(cuò)誤,執(zhí)行其他行為,默認(rèn)彈出系統(tǒng)提示信息. 
 * failFun:接口調(diào)用失敗的回調(diào)函數(shù) 
 * completeFun:接口調(diào)用結(jié)束的回調(diào)函數(shù)（調(diào)用成功、失敗都會(huì)執(zhí)行） 
 * header:object,設(shè)置請(qǐng)求的 header , header 中不能設(shè)置 Referer 
 * method:默認(rèn)為 GET，有效值：OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, CONNECT 
 *  
 */ 
function r( url, data, successFun, successErrorFun, failFun, completeFun, header, method ) { 
  var reqObj = {}; 
  reqObj.url = url; 
  reqObj.data = data; 
 
  //默認(rèn)頭為json 
  reqObj.header = { 'Content-Type': 'application/json' }; 
  if( header ) { 
    //覆蓋header 
    reqObj.header = header; 
  } 
 
 
  if( method ) { 
    reqObj.method = method; 
  } 
  reqObj.success = function( res ) { 
    var returnData = res.data; //將微信端結(jié)果過(guò)濾,獲取服務(wù)端返回的原樣數(shù)據(jù) 
    var status = returnData.status; //按接口約定,返回status時(shí),才調(diào)用成功函數(shù) 
    //console.log(res); 
    //正常執(zhí)行的業(yè)務(wù)函數(shù) 
    if( status == true ) { 
      if( successFun ) { 
        var dts = returnData.data; 
        successFun( dts );//回調(diào)，相當(dāng)于獲取到data后直接在回調(diào)里面處理賦值數(shù)據(jù) 
      } 
    } else if( status == false ) { 
      var msg = returnData.msg; 
      if( !successErrorFun ) { 
        console.log( msg ); 
      } else { 
        successErrorFun( msg ); 
      } 
 
    } else { 
      console.log( "服務(wù)端沒(méi)有按照接口約定格式返回?cái)?shù)據(jù)" ); 
    } 
 
 
  } 
  reqObj.fail = function( res ) { 
    if( failFun ) { 
      failFun( res ); 
    } 
  } 
  reqObj.complete = function( res ) { 
    if( completeFun ) { 
      completeFun( res ); 
    } 
  } 
 
 
  wx.request( reqObj ); 
} 
 
module.exports = { 
  r: r 
} 

<import src="../../template/cityTemplate.wxml"/> 
<template is="city" data="{{...city}}" /> 

var city = require( '../../common/cityTemplate' ); 
Page( { 
 data: { 
 
 }, 
 onLoad: function( options ) { 
  var _that = this; 
  //創(chuàng)建三級(jí)聯(lián)動(dòng)數(shù)據(jù)對(duì)象 ---- 這個(gè)city對(duì)象是固定的，只有請(qǐng)求的url是根據(jù)各自的服務(wù)端地址來(lái)更改的 
  _that.setData( { 
   city: { 
    province: {},//格式province:{code: ["11000", "12000"], name: ["北京市", "上海市"]},只能固定是name和code，因?yàn)槟０逍枰鶕?jù)這倆參數(shù)顯示 
    city: {}, 
    county: {}, 
    provinceIndex: 0, 
    cityIndex: 0, 
    countyIndex: 0, 
    cityUrl: "http://localhost:8282/phpserver/areas.php?type=city&fcode=",//type表示獲取地區(qū) fcode是一級(jí)code碼，到時(shí)具體根據(jù)后端請(qǐng)求參數(shù)修改 
    countyUrl: "http://localhost:8282/phpserver/areas.php?type=county&fcode=" 
   } 
  }) 
  var _url = "http://localhost:8282/phpserver/areas.php"; 
  var _data = { 'type': 'province', 'fcode': '0' }; 
  city.initCityFun( _that, _url, _data ); 
 } 
})