有两种方式,一是通过微信公众平台来生成,二是通过java代码生成
首先进入公众平台,找到接口权限进入
进入后找到获取access_tocken接口,获取access_tocken,因为获取ticket要有tocken才行
拿到token后根据官方文档选择所需要的二维码,是否是永久,来传入需要的参数
获取到ticket后直接在任意浏览器请求
https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=TICKET
提醒:TICKET记得进行UrlEncode
会得到一个二维码图片,保存后会得到一个showqrcode文件 用图片编辑器打开是一张二维码图
也可以选择直接保存二维码图片
以下是Java生成代码
controller:
package com.szhz.controller;
import java.util.HashMap;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
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.RequestMethod;
import com.alibaba.fastjson.JSONObject;
import com.szhz.entity.WeiXinTicketEntity;
import com.szhz.framework.base.controller.BaseController;
import com.szhz.framework.util.HttpUtil;
import com.szhz.service.IWeiXinService;
/**
* 生成带参二维码的ticket值
* @author wyx
*
*/
@SuppressWarnings("rawtypes")
@Controller
@RequestMapping("weixin/ticket")
public class WeiXinTicketController extends BaseController {
@Autowired
private IWeiXinService service;
@Value("${weixin.ticket.action_name.QR_SCENE}")
private String QRSCENE;
@Value("${weixin.ticket.action_name.QR_STR_SCENE}")
private String QR_STR_SCENE;
@RequestMapping(value = "sendInterviewInvitation",method=RequestMethod.POST)
public String sendInterviewInvitation(@RequestBody WeiXinTicketEntity reqDto) throws Exception{
try {
String accessToken = service.getAccessToken();
int sceneId = reqDto.getSceneId();
String result = new WeiXinTicketController().createForeverTicket(accessToken, sceneId);
JSONObject jsonObject = JSONObject.parseObject(result);
String ticket = null ;
if(null!=jsonObject){
ticket = jsonObject.getString("ticket");
System.out.println("创建永久带参二维码成功,ticket="+ticket);
}
return success(ticket);
} catch (Exception e) {
throw new Exception(e);
}
}
/**
* 创建临时带参数二维码
* 获取灵石带参二维码ticket
*
* @param accessToken
* @expireSeconds 该二维码有效时间,以秒为单位。 最大不超过2592000(即30天),此字段如果不填,则默认有效期为30秒。
* @param sceneId 场景Id
* @return
*/
public String createTempTicket(String accessToken, String expireSeconds, int sceneId) {
Map intMap = new HashMap<>();
intMap.put("scene_id", sceneId);
Map> mapMap = new HashMap<>();
mapMap.put("scene", intMap);
Map paramsMap = new HashMap<>();
paramsMap.put("expire_seconds", expireSeconds);
paramsMap.put("action_name", QRSCENE);
paramsMap.put("action_info", mapMap);
String jsonObject = JSONObject.toJSONString(paramsMap);
String requestUrl = "https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token="+accessToken;
String result = HttpUtil.sendPost(requestUrl, jsonObject);
return result;
}
/**
* 创建永久二维码(数字)
*
* @param accessToken
* @param sceneId
* 场景Id
* @return
*/
public String createForeverTicket(String accessToken, int sceneId) {
Map intMap = new HashMap<>();
intMap.put("scene_id", sceneId);
Map> mapMap = new HashMap<>();
mapMap.put("scene", intMap);
Map paramsMap = new HashMap<>();
paramsMap.put("action_name", QR_STR_SCENE);
paramsMap.put("action_info", mapMap);
String jsonObject = JSONObject.toJSONString(paramsMap);
String requestUrl = "https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token="+accessToken;
String result = HttpUtil.sendPost(requestUrl, jsonObject);
return result;
}
/**
* 创建永久二维码(字符串)
*
* @param accessToken
* @param sceneStr
* 场景str
* @return
*/
public String createForeverStrTicket(String accessToken, String sceneStr) {
Map intMap = new HashMap<>();
intMap.put("scene_str", sceneStr);
Map> mapMap = new HashMap<>();
mapMap.put("scene", intMap);
Map paramsMap = new HashMap<>();
paramsMap.put("action_name", QR_STR_SCENE);
paramsMap.put("action_info", mapMap);
String jsonObject = JSONObject.toJSONString(paramsMap);
String requestUrl = "https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token="+accessToken;
String result = HttpUtil.sendPost(requestUrl, jsonObject);
return result;
}
}
entity:
package com.szhz.entity;
import lombok.Data;
/**
*
* @author
*
*/
@Data
public class WeiXinTicketEntity {
/*场景值ID,临时二维码时为32位非0整型,永久二维码时最大值为100000(目前参数只支持1--100000)*/
private int sceneId;
/*该二维码有效时间,以秒为单位。 最大不超过2592000(即30天),此字段如果不填,则默认有效期为30秒*/
private String expireSeconds;
/*场景值ID(字符串形式的ID),字符串类型,长度限制为1到64*/
private String sceneStr;
}
yml:
#临时的整型参数值
weixin.ticket.action_name.QR_SCENE=QR_SCENE
#临时的字符串参数值
weixin.ticket.action_name.QR_STR_SCENE=QR_STR_SCENE
#永久的整型参数值
weixin.ticket.action_name.QR_LIMIT_SCENE=QR_LIMIT_SCENE
#永久的字符串参数值
weixin.ticket.action_name.QR_LIMIT_STR_SCENE=QR_LIMIT_STR_SCENE
然后前端调用接口传入参数{ 过期时间,场景值id或者字符串}获取到ticket值,
然后直接请求 window.location.href =" "
https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=TICKET
提醒:TICKET记得进行UrlEncode
同样获取一张二维码图片
package com.szhz.controller;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.szhz.entity.BaseUrl;
import com.szhz.entity.WeiXinNoticerEntity;
import com.szhz.framework.base.controller.BaseController;
import com.szhz.service.IWeiXinNoticerService;
import com.szhz.service.IWeiXinService;
import com.szhz.service.impl.WeiXinServiceImpl;
/**
* Titile 微信公众号-Controller层
*
*/
@SuppressWarnings("rawtypes")
@Controller
@RequestMapping("/wechat")
public class WeiXinController extends BaseController {
// 第三方用户唯一凭证(从配置中心读取)
@Value("${weixin.appid}")
private String appid;
// 注入主业务service
@Autowired
private IWeiXinService service;
// 注入唯一身份service
//@Autowired
//private IIdentityService iIdentityService;
// 注入关注者service
@Autowired
private IWeiXinNoticerService iWeiXinNoticerService;
private String openId = "";
// 第三方用户唯一凭证密钥,即appsecret(从配置中心读取)
// private static String secret = "";
/**
* 第一步:微信认证(让微信服务器调用,告诉微信服务器调用我们的服务器是合法的,放心回调)
*
* @param request
* @return
*/
@RequestMapping(value = "auth", method = RequestMethod.GET)
public String auth(HttpServletRequest request) {
try {
// 与接口配置信息中的Token要一致
String token = "123";
// 获取微信服务器传递的微信加密签名
String signature = request.getParameter("signature");
// 获取微信服务器传递的时间戳
String timestamp = request.getParameter("timestamp");
// 获取微信服务器传递的随机数
String nonce = request.getParameter("nonce");
// 获取微信服务器传递的随机字符串
String echostr = request.getParameter("echostr");
// 通过验证,原样返回echostr(微信服务器收到echostr后再次比对,比对一致后建立合作关系)
if (signature != null && service.checkSignature(token, signature, timestamp, nonce)) {
return echostr;
}
} catch (Exception e) {
// 验证失败,返回空
return "";
}
// 验证失败,返回空
return "";
}
/**
* 微信菜单按钮点击时触发身份认证接口 重定向到 wechat/userInfo
*
* @param returnUrl:认证完成后需要跳转到的前台页面
* @return
*/
@GetMapping("/authorize")
public String authorize(@RequestParam("returnUrl") String returnUrl,
@RequestParam("returnUrlPage") String returnUrlPage) {
String getAuthUrl = "http://www.szhzsoft.com/" + "wechat/userInfo?returnUrlPage=" + returnUrlPage;
// 需要跳转到认证的地址
String redirectGetUserInfoUrl = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=" + appid
+ "&redirect_uri=" + getAuthUrl + "&response_type=code&scope=snsapi_base&state=" + returnUrl
+ "#wechat_redirect";
// System.out.println("我是returnUrl:[{}]" + redirectGetUserInfoUrl);
return "redirect:" + redirectGetUserInfoUrl;
}
/**
* 微信认证接口回调时调用的接口
*
* @param code
* @param returnUrl
* @return
* @throws Exception
*/
@GetMapping("/userInfo")
// @Transactional
public String userInfo(@RequestParam("code") String code, @RequestParam("state") String returnUrl,
@RequestParam("returnUrlPage") String returnUrlPage) throws Exception {
String baseReturnUrl = returnUrl + "/#/" + returnUrlPage;
System.out.println("我是baseReturnURL:____" + baseReturnUrl);
// 获取openid
String openId = service.getOpenId(code);
// 门户id
String identityId = "";
//
WeiXinNoticerEntity weiXinNoticerSearchEntity = new WeiXinNoticerEntity();
weiXinNoticerSearchEntity.setOpenId(openId);
WeiXinNoticerEntity weiXinNoticerEntity = (WeiXinNoticerEntity) iWeiXinNoticerService.getNoticerByOpenId(weiXinNoticerSearchEntity);// 通过openid查询用户是否已经关注过公众号,
// 如果未关注写入到微信关注者表
int qrScene =0;
if (null==weiXinNoticerEntity) {
String accessToken = service.getAccessToken();
String noticerInfo = service.getNoticerInfo(accessToken, openId);// 获取个人信息
JSONObject jsonObject = JSON.parseObject(noticerInfo);// 转为json对象
String subscribeScene = jsonObject.getString("subscribe_scene");// 获取关注方式
if(subscribeScene.equals("ADD_SCENE_QR_CODE")){ //如果用户是扫描二维码关注的拿到二维码场景值
qrScene = jsonObject.getInteger("qr_scene");
}else{
qrScene = 1;
}
iWeiXinNoticerService.addNoticer(noticerInfo);
//identityId = iIdentityService.addOpenId(openId);
} else {
qrScene=weiXinNoticerEntity.getQrScene();
}
System.out.println("最终回调rui:" + "redirect:" + baseReturnUrl + "?openid=" + identityId+"&qrScene="+qrScene);
return "redirect:" + baseReturnUrl + "?openid=" + identityId+"&qrScene="+qrScene;
}
/**
* 点击页面菜单时,调用前台,前台回来调用此接口
*
* @param response
* @throws IOException
*/
@GetMapping("getBaseOpenid")
public BaseUrl getBaseOpenId(HttpServletResponse response) throws IOException {
String url = service.getOpenIdUrl();
BaseUrl baseUrl = new BaseUrl();
baseUrl.setUrl(url);
response.sendRedirect(url);
baseUrl.setOpenId(openId);
System.out.println("返回时的openId" + openId);
return baseUrl;
}
/****************************************测试***************************************************/
/**
* 测试获取TOKEN
*
* @param reqDto
* @return
* @throws Exception
*/
@RequestMapping(value = "getToken", method = RequestMethod.GET)
public String getToken() throws Exception {
try {
return success(service.getAccessToken());
} catch (Exception e) {
e.printStackTrace();
throw new Exception(e);
}
}
/**
* 测试获取关注者信息
*
* @param reqDto
* @param pageReqDto
* @return
* @throws Exception
*/
@RequestMapping(value = "getNoticerInfo", method = RequestMethod.GET)
public String getNoticerInfo() throws Exception {
try {
String accessToken = service.getAccessToken();
String openId = "111";
return success(service.getNoticerInfo(accessToken, openId));
} catch (Exception e) {
e.printStackTrace();
throw new Exception(e);
}
}
public static void main(String args[]) {
try {
String str = new WeiXinServiceImpl().getNoticerInfo(
"-222",
"111");
System.out.println(str);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
然后前端请求时再进行拦截,根据qrsence去请求不同的接口,获取不同的数据