業(yè)務(wù)背景是公司的運(yùn)營(yíng)在幾個(gè)公司的公眾號(hào)上投放了廣告，當(dāng)用戶點(diǎn)擊廣告，會(huì)發(fā)送給用戶用于注冊(cè)的落地頁連接。用戶注冊(cè)后會(huì)有銷售或者客服來聯(lián)系進(jìn)一步的轉(zhuǎn)換動(dòng)作。但是要實(shí)現(xiàn)用戶信息回傳微信，用來讓微信分析用戶群體，知道啥樣的群體轉(zhuǎn)換率更高。三個(gè)公眾號(hào)用戶信息獲取wxopenId的難點(diǎn)在于獲取信息需要用對(duì)應(yīng)公眾號(hào)的一套公眾號(hào)配置。如何在springboot中實(shí)現(xiàn)三套配置都注入成功，而且來回切換？

設(shè)計(jì)上，我讓前端給我在注冊(cè)的落地頁里加上channel字段，不同的channel投放不同的公眾號(hào)，通過channel來區(qū)分是那個(gè)公眾號(hào)的用戶，進(jìn)而獲取對(duì)應(yīng)的公眾號(hào)配置。實(shí)現(xiàn)對(duì)應(yīng)配置的公眾號(hào)來獲取用戶微信openId成功~

項(xiàng)目結(jié)構(gòu)如下圖

首先對(duì)于微信開發(fā)需要的微信依賴如下，代碼中的WxMpService 就是來至這個(gè)包

        <!-- wechat -->
        <dependency>
            <groupId>com.github.binarywang</groupId>
            <artifactId>weixin-java-mp</artifactId>
            <version>3.7.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>

1.通過@Bean和@Primary實(shí)現(xiàn)注入不同的配置bean名字 WechatMpConfig.java

package com.zhanglf.config;

import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.api.impl.WxMpServiceImpl;
import me.chanjar.weixin.mp.config.impl.WxMpDefaultConfigImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Primary;
import org.springframework.stereotype.Component;

@Component
public class WechatMpConfig {

    @Autowired
    private WechatLingoAccountConfig wechatLingoAccountConfig;
    @Autowired
    private WechatPiPiAccountConfig  wechatPiPiAccountConfig;
    @Autowired
    private WechatXiaoBaoAccountConfig  wechatXiaoBaoAccountConfig;
    
    @Primary
    @Bean("lingoWxMpService")
    public WxMpService lingoWxMpService(){
        WxMpService wxMpService = new WxMpServiceImpl();
        wxMpService.setWxMpConfigStorage(lingoWxMpConfig());
        return wxMpService;
    }
    @Bean("pipiWxMpService")
    public WxMpService pipiWxMpService(){
        WxMpService wxMpService = new WxMpServiceImpl();
        wxMpService.setWxMpConfigStorage(pipiWxMpConfig());
        return wxMpService;
    }
    @Bean("xiaoBaoWxMpService")
    public WxMpService xiaoBaoWxMpService(){
        WxMpService wxMpService = new WxMpServiceImpl();
        wxMpService.setWxMpConfigStorage(xiaobaoWxMpConfig());
        return wxMpService;
    }


    @Bean("lingoWxMpConfig")
    public WxMpDefaultConfigImpl lingoWxMpConfig(){
        WxMpDefaultConfigImpl lingoWxMpConfig = new WxMpDefaultConfigImpl();
        lingoWxMpConfig.setAppId(wechatLingoAccountConfig.getAppId());
        lingoWxMpConfig.setSecret(wechatLingoAccountConfig.getSecret());
        lingoWxMpConfig.setToken(wechatLingoAccountConfig.getToken());
        return lingoWxMpConfig;
    }
    @Bean("pipiWxMpConfig")
    public WxMpDefaultConfigImpl pipiWxMpConfig(){
        WxMpDefaultConfigImpl pipiWxMpConfig = new WxMpDefaultConfigImpl();
        pipiWxMpConfig.setAppId(wechatPiPiAccountConfig.getAppId());
        pipiWxMpConfig.setSecret(wechatPiPiAccountConfig.getSecret());
        return pipiWxMpConfig;
    }
    @Bean("xiaobaoWxMpConfig")
    public WxMpDefaultConfigImpl xiaobaoWxMpConfig(){
        WxMpDefaultConfigImpl xiaobaoWxMpConfig = new WxMpDefaultConfigImpl();
        xiaobaoWxMpConfig.setAppId(wechatXiaoBaoAccountConfig.getAppId());
        xiaobaoWxMpConfig.setSecret(wechatXiaoBaoAccountConfig.getSecret());
        return xiaobaoWxMpConfig;
    }
}

2.然后是每個(gè)配置文件 WechatLingoAccountConfig.java, WechatPiPiAccountConfig.java,WechatXiaoBaoAccountConfig.java

package com.lingoace.edu.config;

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@Data
@Component
@ConfigurationProperties(prefix = "wechat")
public class WechatLingoAccountConfig {
    private String appId;

    private String secret;

    private String token;

    public String getAppId() { return appId; }

    public void setAppId(String appId) { this.appId = appId; }

    public String getSecret() { return secret; }

    public void setSecret(String secret) { this.secret = secret; }

    public String getToken() { return token; }

    public void setToken(String token) { this.token = token; }
}

package com.lingoace.edu.config;

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@Data
@Component
@ConfigurationProperties(prefix = "pipiwechat")
public class WechatPiPiAccountConfig {
    private String appId;

    private String secret;

    public String getAppId() { return appId; }

    public void setAppId(String appId) { this.appId = appId; }

    public String getSecret() { return secret; }

    public void setSecret(String secret) { this.secret = secret; }

}

package com.lingoace.edu.config;

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@Data
@Component
@ConfigurationProperties(prefix = "xiaobaowechat")
public class WechatXiaoBaoAccountConfig {
    private String appId;

    private String secret;

    public String getAppId() { return appId; }

    public void setAppId(String appId) { this.appId = appId; }

    public String getSecret() { return secret; }

    public void setSecret(String secret) { this.secret = secret; }
}

3.上面完成了基本的spring管理三套配置的開發(fā)，用到注解@Qualifier（限定哪個(gè)bean應(yīng)該被自動(dòng)注入）下面是具體的使用。
3.1首先將三套配置指定不同的bean進(jìn)行注入。

3.2 根據(jù)前端傳的參數(shù)獲取不同的實(shí)例WxMpService.

3.3 微信用戶信息回傳接口使用

 public String userInfoReturnWechat(String wxAppName, String landingPageUrl, String wxOpenId, Integer time) {
        LOGGER.info("調(diào)用wxservice的dubbo服務(wù)...進(jìn)來了");
        String result = null;
        WxMpService wxMpService = getWxMpServiceByAppName(wxAppName);
        Map<String, String> wxPublicAccountMap = getWxPublicAccountByAppName(wxAppName);
        String appId = wxMpService.getWxMpConfigStorage().getAppId();
        LOGGER.info("當(dāng)前的公眾號(hào)名wxAppName：{}，通過獲取的wxMpService得到的appId:{},通過Innerchannel自己獲取到的appId:{}",wxAppName,appId,wxPublicAccountMap.get("appId"));
        Map<String, List> map = new HashMap<>();
        List<Map> list = new ArrayList<>();
        Map json = new HashMap(6);
        json.put("user_action_set_id", wxPublicAccountMap.get("userActionSetId"));
        json.put("url", landingPageUrl);
        json.put("action_time", time);
        json.put("action_type", "REGISTER");

        Map<String, String> userIdMap = new HashMap<>(2);
        userIdMap.put("wechat_app_id", wxPublicAccountMap.get("appId"));
        userIdMap.put("wechat_openid", wxOpenId);
        json.put("user_id", userIdMap);

        Map actionParamMap = new HashMap();
        actionParamMap.put("source", "Biz");
        //歸因方式： 0）按點(diǎn)擊行為歸因 1）按關(guān)注行為歸因
        actionParamMap.put("claim_type", 1);
        json.put("action_param", actionParamMap);

        list.add(json);
        map.put("actions", list);
        String postData = JSONObject.toJSONString(map);
        try {
            result = wxMpService.post(URI, postData);
            //正確的返回值：  {"errcode":0," errmsg ":""}  文檔連接：https://ad.weixin.qq.com/guide/2561
            LOGGER.info("用戶信息回傳給微信的入?yún)?#xff1a;{}，返回的出參：{}", postData, result);
        } catch (WxErrorException e) {
            LOGGER.error("用戶信息回傳給微信異常：{}", e);
        }
        return result;
    }