微信开发-获取access_token

public static String getAccessToken() throws ClientProtocolException,
IOException
{
String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential";
url = url + "&appid=" + 你的公众平台开发appId + "&secret=" + 你的公众平台appSecret;

DefaultHttpClient client = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse;

httpResponse = client.execute(httpGet);

int code = httpResponse.getStatusLine().getStatusCode();
String strResult = EntityUtils.toString(httpResponse.getEntity(),WxData.CharSet);
if (code == 200)
{
JSONObject jsonObject = JSONObject.fromObject(strResult);
String token = jsonObject.getString("access_token");
System.out.println(token);

}

return null;
}

每天接口访问次数为2000次，所以要保存到全局变量中，7200s的技能持续时间；

所需要的jar包

commons-beanutils

commons-collections

commons-httpclient

commons-lang

commons-logging

json-lib-2.3-jdk15

httpcore-4.2.2

httpmime-4.2.3

httpclient-cache-4.2.3

httpclient-4.2.3