微信开发获取地理位置实例（java，非常详细，附工程源码）

只看该作者 · 发表于 2017-6-9 22:34:45

在本篇博客之前，博主已经写了4篇关于微信相关文章，其中三篇是本文基础：

1、微信开发之入门教程，该文章详细讲解了企业号体验号免费申请与一些必要的配置，以及如何调用微信接口。

2、微信开发之通过代理调试本地项目，该文章详细讲解了如何调试本地项目，使用工具的详细安装与配置。

3、微信开发之使用java获取签名signature（贴源码，附工程），该文详细讲些了如何获取签名，代码十分详细。

对于初学者，可能还不知道订阅号、服务号、和企业号的区别，博主之前也是一直没有弄清楚，因此查阅资料整理了一篇博客供大家阅读：微信服务号、订阅号和企业号的区别（运营和开发两个角度）。建议有时间得猿友还是阅读一下为好。

上面的文章内容虽然有点多而且繁琐，看完之后不敢说已经入门，但是初步了解，自己写实例是没有问题的。不积跬步无以至千里，希望猿友们耐心继续下去！！！！！！

期间可能会遇到一些坑，欢迎与博主评论交流

有了上面的基础，接下来博主将分享一个具体的微信开发实例，获取用户当前的地理位置。

一、结果演示

二、代码及代码讲解

本工程使用的环境是eclipse + maven + springmvc，下面附上关键代码，springmvc和web.xml相关配置和maven相关依赖就不一一列举，最后会附上工程供大家下载。

2.1、获取签名工具类（httpclient和sha1加密）

package com.luo.util;import java.io.IOException;import java.io.UnsupportedEncodingException;import java.security.MessageDigest;import java.security.NoSuchAlgorithmException;import java.util.ArrayList;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map;import java.util.Set;import java.util.UUID;import net.sf.json.JSONObject;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.NameValuePair;import org.apache.http.ParseException;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.client.methods.HttpUriRequest;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.message.BasicNameValuePair;import org.apache.http.protocol.HTTP;import org.apache.http.util.EntityUtils;public class HttpXmlClient { public static String post(String url, Map<String, String> params) {       DefaultHttpClient httpclient = new DefaultHttpClient();       String body = null;       HttpPost post = postForm(url, params);       body = invoke(httpclient, post);       httpclient.getConnectionManager().shutdown();       return body; } public static String get(String url) {       DefaultHttpClient httpclient = new DefaultHttpClient();       String body = null;       HttpGet get = new HttpGet(url);       body = invoke(httpclient, get);       httpclient.getConnectionManager().shutdown();       return body; } private static String invoke(DefaultHttpClient httpclient,          HttpUriRequest httpost) {       HttpResponse response = sendRequest(httpclient, httpost);       String body = paseResponse(response);       return body; } private static String paseResponse(HttpResponse response) {       HttpEntity entity = response.getEntity();       String charset = EntityUtils.getContentCharSet(entity);       String body = null;       try {          body = EntityUtils.toString(entity);       } catch (ParseException e) {          e.printStackTrace();       } catch (IOException e) {          e.printStackTrace();       }       return body; } private static HttpResponse sendRequest(DefaultHttpClient httpclient,          HttpUriRequest httpost) {       HttpResponse response = null;       try {          response = httpclient.execute(httpost);       } catch (ClientProtocolException e) {          e.printStackTrace();       } catch (IOException e) {          e.printStackTrace();       }       return response; } private static HttpPost postForm(String url, Map<String, String> params) {       HttpPost httpost = new HttpPost(url);       List<NameValuePair> nvps = new ArrayList<NameValuePair>();       Set<String> keySet = params.keySet();       for (String key : keySet) {          nvps.add(new BasicNameValuePair(key, params.get(key)));       }       try {          httpost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));       } catch (UnsupportedEncodingException e) {          e.printStackTrace();       }       return httpost; } public static void main(String[] args) {       //获取access_token       Map<String, String> params = new HashMap<String, String>();       params.put("corpid","wx5f24fa0db1819ea2");       params.put("corpsecret","uQtWzF0bQtl2KRHX0amekjpq8L0aO96LSpSNfctOBLRbuYPO4DUBhMn0_v2jHS-9");       String xml = HttpXmlClient.post("https://qyapi.weixin.qq.com/cgi-bin/gettoken",params);       JSONObject jsonMap  = JSONObject.fromObject(xml);       Map<String, String> map = new HashMap<String, String>();       Iterator<String> it = jsonMap.keys();          while(it.hasNext()) {             String key = (String) it.next();             String u = jsonMap.get(key).toString();          map.put(key, u);          }       String access_token = map.get("access_token");       System.out.println("access_token=" + access_token);       //获取ticket       params.put("access_token",access_token);       xml = HttpXmlClient.post("https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket",params);       jsonMap  = JSONObject.fromObject(xml);       map = new HashMap<String, String>();       it = jsonMap.keys();          while(it.hasNext()) {             String key = (String) it.next();             String u = jsonMap.get(key).toString();          map.put(key, u);          }       String jsapi_ticket = map.get("ticket");       System.out.println("jsapi_ticket=" + jsapi_ticket);       //获取签名signature       String noncestr = UUID.randomUUID().toString();       String timestamp = Long.toString(System.currentTimeMillis() / 1000);       String url="http://mp.weixin.qq.com";       String str = "jsapi_ticket=" + jsapi_ticket +             "&noncestr=" + noncestr +             "&timestamp=" + timestamp +             "&url=" + url;       //sha1加密       String signature = SHA1(str);       System.out.println("noncestr=" + noncestr);       System.out.println("timestamp=" + timestamp);       System.out.println("signature=" + signature);       //最终获得调用微信js接口验证需要的三个参数noncestr、timestamp、signature }    /**    * @author：罗国辉    * @date： 2015年12月17日上午9:24:43    * @description： SHA、SHA1加密    * @parameter： str：待加密字符串    * @return：  加密串 **/ public static String SHA1(String str) {       try {          MessageDigest digest = java.security.MessageDigest                   .getInstance("SHA-1"); //如果是SHA加密只需要将"SHA-1"改成"SHA"即可          digest.update(str.getBytes());          byte messageDigest[] = digest.digest();          // Create Hex String          StringBuffer hexStr = new StringBuffer();          // 字节数组转换为十六进制数          for (int i = 0; i < messageDigest.length; i++) {             String shaHex = Integer.toHexString(messageDigest & 0xFF);             if (shaHex.length() < 2) {                   hexStr.append(0);             }             hexStr.append(shaHex);          }          return hexStr.toString();       } catch (NoSuchAlgorithmException e) {          e.printStackTrace();       }       return null; }}
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2.2、controller代码（尽可能仔细阅读下面的每一行代码，特别是url部分）
package com.luo.controller;import java.util.HashMap;import java.util.Iterator;import java.util.Map;import java.util.UUID;import javax.servlet.http.HttpServletRequest;import net.sf.json.JSONObject;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.servlet.ModelAndView;import com.luo.util.HttpXmlClient;@Controller  public class UserController {    @RequestMapping("/")       public ModelAndView getIndex(HttpServletRequest request){       ModelAndView mav = new ModelAndView("index");          //获取access_token       Map<String, String> params = new HashMap<String, String>();       params.put("corpid","wx7099477f2de8aded");       params.put("corpsecret","4clWzENvHVmpcyuA4toys0URkfYanIqWtxZ5plbisn6Cd5AVTF0thpaK6UAhjIvN");       String xml = HttpXmlClient.post("https://qyapi.weixin.qq.com/cgi-bin/gettoken",params);       JSONObject jsonMap  = JSONObject.fromObject(xml);       Map<String, String> map = new HashMap<String, String>();       Iterator<String> it = jsonMap.keys();          while(it.hasNext()) {             String key = (String) it.next();             String u = jsonMap.get(key).toString();          map.put(key, u);          }       String access_token = map.get("access_token");       //获取ticket       params.put("access_token",access_token);       xml = HttpXmlClient.post("https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket",params);       jsonMap  = JSONObject.fromObject(xml);       map = new HashMap<String, String>();       it = jsonMap.keys();          while(it.hasNext()) {             String key = (String) it.next();             String u = jsonMap.get(key).toString();          map.put(key, u);          }       String jsapi_ticket = map.get("ticket");       //获取签名signature       String noncestr = UUID.randomUUID().toString();       String timestamp = Long.toString(System.currentTimeMillis() / 1000);       //获取请求url       String path = request.getContextPath();       //以为我配置的菜单是http://yo.bbdfun.com/first_maven_project/，最后是有"/"的，所以url也加上了"/"       String url = request.getScheme() + "://" + request.getServerName() +  path + "/";          String str = "jsapi_ticket=" + jsapi_ticket +             "&noncestr=" + noncestr +             "&timestamp=" + timestamp +             "&url=" + url;       //sha1加密       String signature = HttpXmlClient.SHA1(str);       mav.addObject("signature", signature);          mav.addObject("timestamp", timestamp);          mav.addObject("noncestr", noncestr);          mav.addObject("appId", "wx7099477f2de8aded");       System.out.println("jsapi_ticket=" + jsapi_ticket);       System.out.println("noncestr=" + noncestr);       System.out.println("timestamp=" + timestamp);       System.out.println("url=" + url);       System.out.println("str=" + str);       System.out.println("signature=" + signature);       return mav; } }
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2.3、前端js代码（尽可能仔细阅读下面的每一行代码）
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><html><head><script src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script><script> wx.config({       debug: true, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。       appId: '${appId}', // 必填，企业号的唯一标识，此处填写企业号corpid       timestamp: parseInt("${timestamp}",10), // 必填，生成签名的时间戳       nonceStr: '${noncestr}', // 必填，生成签名的随机串       signature: '${signature}',// 必填，签名，见附录1       jsApiList: ['getLocation'] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2 }); wx.ready(function(){ }); wx.error(function(res){ });</script></head><body><button id="getBBS" style="width:1000px;height:600px;font-size:150px;" onclick="submitOrderInfoClick();">获取地理位置</button></body><script type="text/javascript">function submitOrderInfoClick(){  wx.getLocation({       success: function (res) {          alert("小宝鸽获取地理位置成功，经纬度为：（" + res.latitude + "，" + res.longitude + "）" );       },       fail: function(error) {          AlertUtil.error("获取地理位置失败，请确保开启GPS且允许微信获取您的地理位置！");       } });}</script></html>
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[url=][/url]

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三、源码下载
http://download.csdn.net/detail/u013142781/9400470
加上这篇文章，博主微信相关文章就有5篇，将会点亮博主微信开发博客专栏（左侧可看到），欢迎订阅。
欢迎相互关注交流，博主会不断将工作上遇到的技术点写成博客分享给大家。

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微信开发获取地理位置实例（java，非常详细，附工程源码）

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