普通類註入不進spring bean的解決方法

解決問題:我在做移動端accessToken的使用遇到一個問題,就是普通類死活註入不進去spring bean,我和同事雷傑通過各種註解,xml配置搞瞭好久都搞不定,這裡插個眼,有空補一下spring,得深入研究一下

解決辦法:後面通過一個spring工具類搞定,這裡貼上代碼

1、引入這個springUtil類

2、通過構造方法註入

貼上SpringUtils代碼:

package com.dt.base.weixin.util;

import org.springframework.aop.framework.AopContext;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.stereotype.Component;

/**
 * @Description: spring工具類 方便在非spring管理環境中獲取bean
 * @author: ZhangChongHu
 * @Date: 2020/12/8 17:23
 * @Copyright: Xi'an Dian Tong Software Co., Ltd. All Rights Reserved.
 * @Version 1.0
 */
@Component
public final class SpringUtils implements BeanFactoryPostProcessor
{
 /** Spring應用上下文環境 */
 private static ConfigurableListableBeanFactory beanFactory;

 @Override
 public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException
 {
  SpringUtils.beanFactory = beanFactory;
 }

 /**
  * 獲取對象
  *
  * @param name
  * @return Object 一個以所給名字註冊的bean的實例
  * @throws BeansException
  *
  */
 @SuppressWarnings("unchecked")
 public static <T> T getBean(String name) throws BeansException
 {
  return (T) beanFactory.getBean(name);
 }

 /**
  * 獲取類型為requiredType的對象
  *
  * @param clz
  * @return
  * @throws BeansException
  *
  */
 public static <T> T getBean(Class<T> clz) throws BeansException
 {
  T result = (T) beanFactory.getBean(clz);
  return result;
 }

 /**
  * 如果BeanFactory包含一個與所給名稱匹配的bean定義,則返回true
  *
  * @param name
  * @return boolean
  */
 public static boolean containsBean(String name)
 {
  return beanFactory.containsBean(name);
 }

 /**
  * 判斷以給定名字註冊的bean定義是一個singleton還是一個prototype。 如果與給定名字相應的bean定義沒有被找到,將會拋出一個異常(NoSuchBeanDefinitionException)
  *
  * @param name
  * @return boolean
  * @throws NoSuchBeanDefinitionException
  *
  */
 public static boolean isSingleton(String name) throws NoSuchBeanDefinitionException
 {
  return beanFactory.isSingleton(name);
 }

 /**
  * @param name
  * @return Class 註冊對象的類型
  * @throws NoSuchBeanDefinitionException
  *
  */
 public static Class<?> getType(String name) throws NoSuchBeanDefinitionException
 {
  return beanFactory.getType(name);
 }

 /**
  * 如果給定的bean名字在bean定義中有別名,則返回這些別名
  *
  * @param name
  * @return
  * @throws NoSuchBeanDefinitionException
  *
  */
 public static String[] getAliases(String name) throws NoSuchBeanDefinitionException
 {
  return beanFactory.getAliases(name);
 }

 /**
  * 獲取aop代理對象
  *
  * @param invoker
  * @return
  */
 @SuppressWarnings("unchecked")
 public static <T> T getAopProxy(T invoker)
 {
  return (T) AopContext.currentProxy();
 }
}

貼上調用得方法:

註意:調用getValidator()方法直接返回得是 AgentCfgDao agentCfgDao ,相當於

  @Autowired
  private AgentCfgDao agentCfgDao;
/**
 * Copyright (c) 2014 - 2016 Xi'an Dian Tong Software Co., Ltd. All Rights Reserved.
 * <p>
 * This software is the confidential and proprietary information of Xi'an Dian Tong
 * Software Co., Ltd. ("Confidential Information"). You shall not disclose such
 * Confidential Information and shall use it only in accordance with the terms
 * of the license agreement you entered into with Xi'an Dian Tong Software Co., Ltd.
 */

package com.dt.base.weixin.app;

import cn.hutool.http.HttpRequest;
import cn.hutool.http.HttpUtil;
import com.dt.base.weixin.util.SpringUtils;
import com.dt.ncfg.dao.AgentCfgDao;
import com.dt.sys.manage.entity.DtwxAgentCfg;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.stereotype.Component;
import java.util.HashMap;

/**
 * 保存瞭 corpID + secret 和對應的 access token 。
 * key: corpID + secret
 * value: access token
 */

public class AccessTokenPool {

 protected final static Logger log = LogManager.getLogger("AccessTokenPool");

 DtwxAgentCfg dtwxAgentCfg = null;


 /**
  * 獲取AgentCfgDao
  *
  * @return
  */
 protected AgentCfgDao getValidator() {
  return SpringUtils.getBean(AgentCfgDao.class);
 }

 /**
  * 根據corpID, secret 換取AccessToken
  *
  * @param corpID corpID
  * @param secret secret
  * @param type type
  * @return
  */
 public String getAccessToken(String corpID, String secret, String type) {

  //如果是企業號
  if ("QYH".equals(type)) {

   //可以單獨傳入http參數,這樣參數會自動做URL編碼,拼接在URL中
   HashMap<String, Object> paramMap = new HashMap<>();
   paramMap.put("corpId", corpID);
   paramMap.put("corpSecret", secret);
   String result = HttpUtil.get(resUrl() + "/api/mobile/QYH/isExist", paramMap);
   return result;
  }
  //如果是服務號
  if ("FWH".equals(type)) {

   //可以單獨傳入http參數,這樣參數會自動做URL編碼,拼接在URL中
   HashMap<String, Object> paramMap = new HashMap<>();
   paramMap.put("appId", corpID);
   paramMap.put("appSecret", secret);

   String result = HttpUtil.get(resUrl() + "/api/mobile/FWH/isExist", paramMap);
   return result;
  }
  //如果是釘釘號
  if ("DING".equals(type)) {

   //可以單獨傳入http參數,這樣參數會自動做URL編碼,拼接在URL中
   HashMap<String, Object> paramMap = new HashMap<>();
   paramMap.put("appKey", corpID);
   paramMap.put("appSecret", secret);

   String result = HttpUtil.get(resUrl() + "/api/mobile/DING/isExist", paramMap);
   return result;
  }
  return null;
 }



 /**
  * 根據corpID, secret 刪除舊的token
  *
  * @param corpID
  * @param secret
  * @return
  */
 public String delAccessToken(String corpID, String secret, String type) {

  if ("QYH".equals(type)) {
   //可以單獨傳入http參數,這樣參數會自動做URL編碼,拼接在URL中
   HashMap<String, Object> paramMap = new HashMap<>(16);
   paramMap.put("corpId", corpID);
   paramMap.put("corpSecret", secret);
   //請求微服務接口地址
   HttpRequest.delete(resUrl() + "/api/mobile/QYH")
     .form(paramMap).execute().body();

   return null;
  }

  if ("FWH".equals(type)) {
   //可以單獨傳入http參數,這樣參數會自動做URL編碼,拼接在URL中
   HashMap<String, Object> paramMap = new HashMap<>(16);
   paramMap.put("appId", corpID);
   paramMap.put("appSecret", secret);
   //請求微服務接口地址
   HttpRequest.delete(resUrl() + "/api/mobile/FWH")
     .form(paramMap).execute().body();
   return null;
  }

  if ("DING".equals(type)) {
   HashMap<String, Object> paramMap = new HashMap<>(16);
   paramMap.put("appKey", corpID);
   paramMap.put("appSecret", secret);
   //請求微服務接口地址
   HttpRequest.delete(resUrl() + "/api/mobile/DING")
     .form(paramMap).execute().body();
   return "";
  }
  return "";
 }

 /**
  * 根據corpID, secret 換取JSTicket
  *
  * @param corpID
  * @param secret
  * @return
  */
 public String getJSTicket(String corpID, String secret, String type) {

  if ("QYH".equals(type)) {
   //可以單獨傳入http參數,這樣參數會自動做URL編碼,拼接在URL中
   HashMap<String, Object> paramMap = new HashMap<>(16);
   paramMap.put("corpId", corpID);
   paramMap.put("corpSecret", secret);
   //請求微服務接口地址
   String result = HttpUtil.get(resUrl() + "/api/mobile/QYH/isJSTicket", paramMap);

   return result;
  }

  if ("FWH".equals(type)) {
   //可以單獨傳入http參數,這樣參數會自動做URL編碼,拼接在URL中
   HashMap<String, Object> paramMap = new HashMap<>(16);
   paramMap.put("appId", corpID);
   paramMap.put("appSecret", secret);
   //請求微服務接口地址
   String result = HttpUtil.get(resUrl() + "/api/mobile/FWH/isJSTicket", paramMap);

   return result;
  }

  if ("DING".equals(type)) {
   HashMap<String, Object> paramMap = new HashMap<>(16);
   paramMap.put("appKey", corpID);
   paramMap.put("appSecret", secret);
   //請求微服務接口地址
   String result = HttpUtil.get(resUrl() + "/api/mobile/DING/isJSTicket", paramMap);

   return result;
  }
  return "";
 }
 /**
  * 獲取數據庫中的url
  * @return url 地址
  */
 public String resUrl(){
  //獲取url
  DtwxAgentCfg dtwxAgentCfg = new DtwxAgentCfg();
  dtwxAgentCfg.setAppType("wxInterfaceUrl");
  dtwxAgentCfg.setConfigKey("RESQUEST_ACS_TOKEN");
  DtwxAgentCfg agentCfg = getValidator().selectDataCfg(dtwxAgentCfg);
  //url=http://localhost:8080
  String url = agentCfg.getConfigValue();
  return url;
 }


}

總結:bug是搞定瞭,但是基礎知識還要補,打卡現在是2020/12/16寫得博客,那天把這裡得知識補瞭,在回來留痕。

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