微信开发获取地理位置实例（java，非常详细，附工程源码）

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！！！！！！

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！！！！！！

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）

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packagecom.luo.util;

 

importjava.io.IOException;

importjava.io.UnsupportedEncodingException;

importjava.security.MessageDigest;

importjava.security.NoSuchAlgorithmException;

importjava.util.ArrayList;

importjava.util.HashMap;

importjava.util.Iterator;

importjava.util.List;

importjava.util.Map;

importjava.util.Set;

importjava.util.UUID;

importnet.sf.json.JSONObject;

importorg.apache.http.HttpEntity;

importorg.apache.http.HttpResponse;

importorg.apache.http.NameValuePair;

importorg.apache.http.ParseException;

importorg.apache.http.client.ClientProtocolException;

importorg.apache.http.client.entity.UrlEncodedFormEntity;

importorg.apache.http.client.methods.HttpGet;

importorg.apache.http.client.methods.HttpPost;

importorg.apache.http.client.methods.HttpUriRequest;

importorg.apache.http.impl.client.DefaultHttpClient;

importorg.apache.http.message.BasicNameValuePair;

importorg.apache.http.protocol.HTTP;

importorg.apache.http.util.EntityUtils;

 

publicclass HttpXmlClient {

 

    publicstatic String post(String url, Map<String, String> params) {

        DefaultHttpClient httpclient = newDefaultHttpClient();

        String body = null;

        HttpPost post = postForm(url, params);

        body = invoke(httpclient, post);

        httpclient.getConnectionManager().shutdown();

        returnbody;

    }

 

    publicstatic String get(String url) {

        DefaultHttpClient httpclient = newDefaultHttpClient();

        String body = null;

        HttpGet get = newHttpGet(url);

        body = invoke(httpclient, get);

        httpclient.getConnectionManager().shutdown();

        returnbody;

    }

 

    privatestatic String invoke(DefaultHttpClient httpclient,

            HttpUriRequest httpost) {

        HttpResponse response = sendRequest(httpclient, httpost);

        String body = paseResponse(response);

        returnbody;

    }

 

    privatestatic 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();

        }

        returnbody;

    }

 

    privatestatic HttpResponse sendRequest(DefaultHttpClient httpclient,

            HttpUriRequest httpost) {

        HttpResponse response = null;

        try{

            response = httpclient.execute(httpost);

        }catch(ClientProtocolException e) {

            e.printStackTrace();

        }catch(IOException e) {

            e.printStackTrace();

        }

        returnresponse;

    }

 

    privatestatic HttpPost postForm(String url, Map<String, String> params) {

 

        HttpPost httpost = newHttpPost(url);

        List<NameValuePair> nvps = newArrayList<NameValuePair>();

 

        Set<String> keySet = params.keySet();

        for(String key : keySet) {

            nvps.add(newBasicNameValuePair(key, params.get(key)));

        }

 

        try{

            httpost.setEntity(newUrlEncodedFormEntity(nvps, HTTP.UTF_8));

        }catch(UnsupportedEncodingException e) {

            e.printStackTrace();

        }

 

        returnhttpost;

    }

 

    publicstatic void main(String[] args) {

 

        //获取access_token

        Map<String, String> params = newHashMap<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 = newHashMap<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 = newHashMap<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

    **/

    publicstatic 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());

            bytemessageDigest[] = digest.digest();

            // Create Hex String

            StringBuffer hexStr = newStringBuffer();

            // 字节数组转换为 十六进制 数

            for(inti = 0; i < messageDigest.length; i++) {

                String shaHex = Integer.toHexString(messageDigest[i] & 0xFF);

                if(shaHex.length() < 2) {

                    hexStr.append(0);

                }

                hexStr.append(shaHex);

            }

            returnhexStr.toString();

 

        }catch(NoSuchAlgorithmException e) {

            e.printStackTrace();

        }

        returnnull;

    }

}

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）

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packagecom.luo.controller;

 

importjava.util.HashMap;

importjava.util.Iterator;

importjava.util.Map;

importjava.util.UUID;

importjavax.servlet.http.HttpServletRequest;

importnet.sf.json.JSONObject;

importorg.springframework.stereotype.Controller;

importorg.springframework.web.bind.annotation.RequestMapping;

importorg.springframework.web.servlet.ModelAndView;

 

importcom.luo.util.HttpXmlClient;

 

@Controller 

publicclass UserController { 

 

    @RequestMapping("/")   

    publicModelAndView getIndex(HttpServletRequest request){ 

 

        ModelAndView mav = newModelAndView("index"); 

        //获取access_token

        Map<String, String> params = newHashMap<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 = newHashMap<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 = newHashMap<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);

        returnmav;   

 

    }   

}

2.3、前端js代码（尽可能仔细阅读下面的每一行代码）

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<%@ 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>

三、源码下载

http://download.csdn.net/detail/u013142781/9400470