第三方微信登录demo

package com.it.service; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.it.util.AutUtil; import net.sf.json.JSONObject; /** * 回调地址 * @author * */ @WebServlet("/callBack") public class callBackService extends HttpServlet{ @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { //微信服务器访问callBack会带回code String code = req.getParameter("code"); System.out.println(code); //通过code得到access_token票据 String url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid="+AutUtil.APPID + "&secret="+AutUtil.APPSECRET + "&code="+code + "&grant_type=authorization_code"; JSONObject jsonObject = AutUtil.doget(url); System.out.println(jsonObject.getString("access_token")); System.out.println(jsonObject); String openid = jsonObject.getString("openid"); System.out.println(openid); String access_token = jsonObject.getString("access_token"); //拉取用户信息接口 String infourl = "https://api.weixin.qq.com/sns/userinfo?access_token="+access_token + "&openid="+openid + "&lang=zh_CN"; JSONObject userinfo = AutUtil.doget(infourl); System.out.println(userinfo); } }