获取scheme码
- 该接口用于获取小程序 scheme 码，适用于短信、邮件、外部网页、微信内等拉起小程序的业务场景。目前仅针对国内非个人主体的小程序开放，详见获取 URL scheme。
效果：https://www.youlingrc.com/minishare.html
项目地址：https://github.com/yusheng9/openwxchat
H5：index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>优领用工-我要招聘</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style type="text/css">
html, body {
height: 100%;
margin: 0;
padding: 0;
}
.page {
background: linear-gradient(to bottom, #28AC86 50%, #DBEAE7 50%);
width: 100%;
height: 100vh;
overflow: hidden;
position: relative;
}
.page .main{
background: url('https://img.youlingrc.com/images/20231018142538.png') no-repeat center;
background-size: contain;
width: 100%;
height: 100vh;
}
.btn{
width: 80%;
height: 60px;
background: #28AC86;
color: white;
position: absolute;
left: 10%;
bottom: 8%;
font-size: 2.1em;
display: flex;
align-items: center;
justify-content: center;
border-radius: 20px;
box-shadow: 5px 6px 16px rgba(0, 0, 0, 0.3);
}
</style>
</head>
<body>
<div class="page">
<div class="main">
<div class="btn">我要招聘</div>
</div>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
<script>
$(function(){
let openlink = '';
$.ajax({
url: 'http://127.0.0.1:8080/wchat/api/generatescheme',
type: 'POST', // 或者 'GET'，根据您的需求
data: JSON.stringify({
path: "pages/home/home",
query: "source=8"
}),
contentType: 'application/json',
success: function (res) {
// 请求成功时的处理逻辑
console.log('请求成功', res);
if (res.code === "20000") {
let data = res.content
if (data.openlink){
openlink = data.openlink
}
}
},
error: function (xhr, status, error) {
// 请求失败时的处理逻辑
console.log('请求失败', status, error);
}
});
$(".btn").click(function () {
// 检测用户代理字符串
var userAgent = navigator.userAgent;
console.log('userAgent',userAgent)
// 定义PC浏览器的关键词
var pcKeywords = ["Windows", "Macintosh"];
// 检查用户代理是否包含PC关键词
var isPC = pcKeywords.some(function (keyword) {
return userAgent.indexOf(keyword) !== -1;
});
// 如果是PC浏览器，显示提示消息
if (isPC) {
alert("请使用手机浏览器打开。");
return
}
window.location.href = openlink
});
})
</script>
</body>
</html>
java后端服务：
WChatUtil.java
package com.example.openwxchat.utils;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.springframework.stereotype.Component;
import java.io.IOException;
@Component
public class WChatUtil {
//凭证有效时间，单位：秒。目前是7200秒之内的值。
private static Integer expiresIn = 7200;
private final static String APPID = "wx9e6939****aadf0d"; // 你的小程序App ID
private final static String APPSECRET = "4fc41066df*********ad68124ee39fd"; // 你的小程序App Secret
// 存储AccessToken和其有效期的变量
private static String accessToken;
private static long expireTime; // 过期时间戳，单位：秒
/**
* 获取微信小程序的AccessToken。
* 如果AccessToken尚未获取或已过期，则会向微信服务器发起请求获取新的AccessToken。
*
* @return 微信小程序AccessToken
*/
public static String getAccessToken() {
// 如果AccessToken为空或已过期，则重新获取
if (accessToken == null || System.currentTimeMillis() > expireTime * 1000) {
refreshAccessToken();
}
return accessToken;
}
/**
* 刷新AccessToken，向微信服务器发送请求获取新的AccessToken。
*/
private static void refreshAccessToken() {
// 构建请求URL
String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + APPID + "&secret=" + APPSECRET;
// 使用HttpClient发送POST请求
HttpClient httpClient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost(url);
try {
HttpResponse response = httpClient.execute(httpPost);
String responseJson = EntityUtils.toString(response.getEntity());
// 使用FastJSON解析JSON响应
JSONObject jsonObject = JSONObject.parseObject(responseJson);
// 从JSON响应中获取AccessToken
accessToken = jsonObject.getString("access_token");
// 计算过期时间戳
expireTime = System.currentTimeMillis() + (expiresIn - 60) * 1000; // 提前60秒过期，避免刚好过期时的并发问题
} catch (IOException e) {
// 处理异常
}
}
//获取scheme
public static String generateScheme(String jump_wxa) {
String accessToken = getAccessToken();
// 拼接URL
String url = "https://api.weixin.qq.com/wxa/generatescheme?access_token=" + accessToken;
try {
HttpClient client = HttpClients.createDefault(); // 构建一个Client
HttpPost post = new HttpPost(url); // 构建一个Post请求
post.setHeader("Content-Type", "application/json"); // 设置请求头为JSON
// 创建一个 JSON 格式的请求主体
JSONObject jsonRequest = new JSONObject();
jsonRequest.put("jump_wxa", JSON.parseObject(jump_wxa));
StringEntity input = new StringEntity(jsonRequest.toString(), "UTF-8");
post.setEntity(input);
HttpResponse response = client.execute(post); // 提交POST请求
HttpEntity result = response.getEntity(); // 拿到返回的HttpResponse的"实体"
String content = EntityUtils.toString(result);
// 返回JSON格式的响应字符串
return content;
} catch (Exception e) {
e.printStackTrace();
// 返回错误信息
return "{\"error\": \"" + e.getMessage() + "\"}";
}
}
}
ApiController.java
package com.example.openwxchat.controller;
import com.alibaba.fastjson.JSONObject;
import com.example.openwxchat.param.GenerateschemeParam;
import com.example.openwxchat.utils.WChatUtil;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RequestMapping("/wchat/api")
@RestController
public class ApiController {
@PostMapping("/generatescheme")
public Object generatescheme(@RequestBody GenerateschemeParam param){
JSONObject jump_wxa_json = new JSONObject();
jump_wxa_json.put("path",param.getPath());
jump_wxa_json.put("query",param.getQuery());
String scheme = WChatUtil.generateScheme(JSONObject.toJSONString(jump_wxa_json));
return ResponseEntity.ok(scheme);
}
}
请问这种有没有办法再跳回到h5页面
<web-view src="https://22387db45.51vip.biz"></web-view>需要注意：URL Scheme有效期最长 30 天，针对非个人主体小程序开放，每天生成 URL Scheme 和 URL Link 总数量上限为50万。
如果使用 wx-open-launch-weapp 门槛会低很多