微信根据Code获取OpenId

String code = request.getParameter("code");

private static final String OAUTHUSERINFO="https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret=SECRET&code=CODE&grant_type=authorization_code";

public CodeOpenid getOpenId(String code){
String path = OAUTHUSERINFO.replace("APPID", appid).replace("SECRET", appsecret).replace("CODE", code);
String result=HttpRequest("GET", path, null);
System.out.println(result);
JSONObject object=JSONObject.parseObject(result);
CodeOpenid entity=null;
if(object.get("access_token")!=null){
entity=JSONObject.toJavaObject(object,CodeOpenid.class);
}
return entity;
}

<span style="white-space:pre">	</span>private String access_token;
private int expires_in;
private String refresh_token;
private String openid;
private String scope;