92 lines
2.9 KiB
Plaintext
92 lines
2.9 KiB
Plaintext
package com.jysoft;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import com.jysoft.weChat.util.HttpUtil;
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import com.jysoft.weChat.util.Wechatconfig;
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import com.jysoft.weChat.vo.AccessTokenVo;
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import net.sf.json.JSONObject;
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public class AccessTokenServlet extends HttpServlet {
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/**
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* 每间隔两个小时，获取微信accessToken
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*/
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private static final long serialVersionUID = 119868412918946078L;
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@Override
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public void init() throws ServletException {
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System.out.println("-----启动AccessTokenServlet-----");
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super.init();
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new Thread(new Runnable() {
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@Override
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public void run() {
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while (true) {
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try {
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// 获取accessToken
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Wechatconfig.accessToken = getAccessToken();
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// 获取成功
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if (Wechatconfig.accessToken != null) {
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// 获取成功时，根据access_token获取jsapi_ticket
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getJsapiTicket();
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// 获取到access_token 休眠7000秒,大约2个小时左右
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Thread.sleep(7000 * 1000);
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} else {
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// 获取失败
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Thread.sleep(1000 * 3); // 获取的access_token为空 休眠3秒
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}
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} catch (Exception e) {
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System.out.println("发生异常：" + e.getMessage());
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e.printStackTrace();
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try {
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Thread.sleep(1000 * 10); // 发生异常休眠1秒
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} catch (Exception e1) {
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e.printStackTrace();
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}
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}
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}
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}
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}).start();
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}
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// 获取access_token 接口
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@SuppressWarnings("static-access")
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public static AccessTokenVo getAccessToken() {
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HttpUtil netHelper = new HttpUtil();
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/**
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* 接口地址为https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET，其中grant_type固定写为client_credential即可。
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*/
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String Url = String.format("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=%s&secret=%s", Wechatconfig.appId, Wechatconfig.appSecret);
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// 此请求为https的get请求，返回的数据格式为{"access_token":"ACCESS_TOKEN","expires_in":7200}
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String result = netHelper.getHttpsResponse(Url, "");
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System.out.println("获取到的access_token=" + result);
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JSONObject jsonObject = new JSONObject().fromObject(result);
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AccessTokenVo token = new AccessTokenVo();
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token.setExpireSecond(jsonObject.getInt("expires_in"));
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token.setTokenName(jsonObject.getString("access_token"));
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return token;
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}
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// 获取jsapi_ticket
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@SuppressWarnings("static-access")
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private void getJsapiTicket() {
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HttpUtil netHelper = new HttpUtil();
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String Url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=" + Wechatconfig.accessToken.getTokenName() + "&type=jsapi";
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// 此请求为https的get请求，返回的数据格式为{"access_token":"ACCESS_TOKEN","expires_in":7200}
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String result = netHelper.getHttpsResponse(Url, "");
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JSONObject jsonObject = new JSONObject().fromObject(result);
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Wechatconfig.ticket = jsonObject.getString("ticket");
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}
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}
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