项目中调用微信公众平台的接口时，因为获取到的accessToken及jsapiTicket有效时长只有两个小时，需要不断更新。
所以做了个定时任务，记录一下。
.SpringTask实现有两种方式，一种是注解，一种是配置。我这个是配置xml实现的，实现步骤具体如下：
第一步：新建spring-task.xml，并配置定时任务。(先获取accessToken，在随即获取jsapiTicket)
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:task="http://www.springframework.org/schema/task" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.2.xsd"> <!-- 自动扫描的包名 --> <context:component-scan base-package="com.wfcm.wxUitls" /> <task:annotation-driven /><!-- 定时器开关--> <bean id="taskJob" class="com.wfcm.wxUitls.TaskJob"/><!-- 指向定时执行的类--> <task:scheduled-tasks> <task:scheduled ref="taskJob" method="getAccessToken" cron="0 0 0/1 * * ?"/><!--每小时执行一次： ref指任务类bean的id , method定时执行的方法,corn定时设置--> </task:scheduled-tasks> <task:scheduled-tasks> <task:scheduled ref="taskJob" method="getJsapiTicket" cron="1 0 0/1 * * ?"/> </task:scheduled-tasks> </beans>
记得扫描.xml
<context-param> <param-name>contextConfigLocation</param-name> <param-value> classpath:spring-task.xml </param-value> </context-param>
cron="0/2 * * * * ? //每两秒执行一次，测试的时候用。关于Spring Task 的 cron表达式，请参见另一篇博客：摆脱Spring 定时任务的@Scheduled cron表达式的困扰
第二步：接下来就是写任务类：（测试用）
public class TaskJob { public void job1() { SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss"); Date now = new Date(); System.out.println("******************任务进行中****************"+sdf.format(now)); } public void job2() { SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss"); Date now = new Date(); System.out.println("******************任务进行中****************"+sdf.format(now)); } }
第三步：具体业务实现，其中access和jsapiticket存在同一张表中。
package com.xxxx.wxUitls;public class TaskJob { private static Logger log = LoggerFactory.getLogger(TokenThread.class); @Autowired WfWxShareService wxShareService; // 第三方用户唯一凭证 //appid/appsecret为微信app ; 配置获取access_token所需参数appid和appsecret public static String appid = "wxbxxxxxxxxxx"; // 第三方用户唯一凭证密钥 public static String appsecret = "4cfaxxxxxxxxxxxxxxxxx"; public void getAccessToken() { WfWxShareEntity accessToken = new WfWxShareEntity(); accessToken = WxUtil.getAccessToken(appid, appsecret); if (null != accessToken ) { log.info("获取access_token成功，有效时长{}秒 token:{}", accessToken.getContent()); wxShareService.update(accessToken); } } public void getJsapiTicket() { WfWxShareEntity accessToken = new WfWxShareEntity(); accessToken = wxShareService.queryObject(1); JSONObject jsonObj= FastJSONUtils.getJSONObject(accessToken.getContent()); String access_token = jsonObj.getString("access_token"); WfWxShareEntity jsapiTicket = new WfWxShareEntity(); jsapiTicket = WxUtil.getTicket(access_token); if (null != jsapiTicket ) { log.info("获取jsapiTicket成功，有效时长{}秒 token:{}", jsapiTicket.getContent()); } wxShareService.update(jsapiTicket); } }
工具类：WXUtil.java
package com.xxxx.utils; import java.io.BufferedReader; import java.io.InputStreamReader; import java.net.URL; import java.net.URLConnection; import java.util.List; import java.util.Map; import com.xxxx.entity.WfWxShareEntity; public class WxUtil { /** * 向指定URL发送GET方法的请求 * * 发送请求的URL * 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。 * @return URL 所代表远程资源的响应结果 */ public static WfWxShareEntity getAccessToken(String appid, String appsecret) { WfWxShareEntity accessToken = new WfWxShareEntity(); String result = ""; BufferedReader in = null; try { String urlNameString = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" +appid+ "&secret=" + appsecret; URL realUrl = new URL(urlNameString); // 打开和URL之间的连接 URLConnection connection = realUrl.openConnection(); // 设置通用的请求属性 connection.setRequestProperty("accept", "*/*"); connection.setRequestProperty("connection", "Keep-Alive"); connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); // 建立实际的连接 connection.connect(); // 获取所有响应头字段 Map<String, List<String>> map = connection.getHeaderFields(); // 遍历所有的响应头字段 for (String key : map.keySet()) { System.out.println(key + "--->" + map.get(key)); } // 定义 BufferedReader输入流来读取URL的响应 in = new BufferedReader(new InputStreamReader( connection.getInputStream())); String line =null; while ((line = in.readLine()) != null) { result += line; } // JSONObject jsonObj= FastJSONUtils.getJSONObject(result); /* String access_token = jsonObj.getString("access_token"); long expires_in = Long.valueOf(jsonObj.getString("expires_in"));*/ accessToken.setId(1); accessToken.setName("access_token"); accessToken.setContent(result); } catch (Exception e) { System.out.println("发送GET请求出现异常！" + e); e.printStackTrace(); } // 使用finally块来关闭输入流 finally { try { if (in != null) { in.close(); } } catch (Exception e2) { e2.printStackTrace(); } } return accessToken ; } /** * 向指定URL发送GET方法的请求 * 发送请求的URL * 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。 * @return URL 所代表远程资源的响应结果 */ public static WfWxShareEntity getTicket(String access_token) { WfWxShareEntity jsapiTicket = new WfWxShareEntity(); String result = ""; BufferedReader in = null; try { String urlNameString = " https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=" +access_token+ "&type=jsapi"; URL realUrl = new URL(urlNameString); // 打开和URL之间的连接 URLConnection connection = realUrl.openConnection(); // 设置通用的请求属性 connection.setRequestProperty("accept", "*/*"); connection.setRequestProperty("connection", "Keep-Alive"); connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); // 建立实际的连接 connection.connect(); // 获取所有响应头字段 Map<String, List<String>> map = connection.getHeaderFields(); // 遍历所有的响应头字段 for (String key : map.keySet()) { System.out.println(key + "--->" + map.get(key)); } // 定义 BufferedReader输入流来读取URL的响应 in = new BufferedReader(new InputStreamReader( connection.getInputStream())); String line =null; while ((line = in.readLine()) != null) { result += line; } /* JSONObject jsonObj= FastJSONUtils.getJSONObject(result); String tiket = jsonObj.getString("ticket"); long expires_in = Long.valueOf(jsonObj.getString("expires_in")); accessToken.setAccessToken(tiket); accessToken.setExpirationTime(expires_in);*/ jsapiTicket.setId(2); jsapiTicket.setName("jsapi_ticket"); jsapiTicket.setContent(result); } catch (Exception e) { System.out.println("发送GET请求出现异常！" + e); e.printStackTrace(); } // 使用finally块来关闭输入流 finally { try { if (in != null) { in.close(); } } catch (Exception e2) { e2.printStackTrace(); } } return jsapiTicket ; } }
实体类：WxSharEntity.java
package com.xxx.entity; import java.io.Serializable; import java.util.Date; /** * 微信分享 * * @author xlf * @email xlfbe696@gmail.com * @date 2018-02-01 19:44:58 */ public class WfWxShareEntity implements Serializable { private static final long serialVersionUID = 1L; // private Integer id; //名称 private String name; //内容 private String content; /** * 设置： */ public void setId(Integer id) { this.id = id; } /** * 获取： */ public Integer getId() { return id; } /** * 设置：名称 */ public void setName(String name) { this.name = name; } /** * 获取：名称 */ public String getName() { return name; } /** * 设置：内容 */ public void setContent(String content) { this.content = content; } /** * 获取：内容 */ public String getContent() { return content; } }