微信OAuth授权获取用户OpenId-JAVA 获取微信的code acces

[java]代码库

package cn.elve.jxt.weixin.weixin.util;

import java.net.URLEncoder;
import cn.elve.jxt.weixin.util.Constants;
/**
 * 获取微信的code
 * @author 宗潇帅
 * @修改日期 2014-7-21下午1:01:45
 */
public class GetWeiXinCode {
    public static String  GetCodeRequest = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=APPID&redirect_uri=REDIRECT_URI&response_type=code&scope=SCOPE&state=STATE#wechat_redirect";
    public static String getCodeRequest(){
        String result = null;
        GetCodeRequest  = GetCodeRequest.replace("APPID", urlEnodeUTF8(Constants.appId));
        GetCodeRequest  = GetCodeRequest.replace("REDIRECT_URI",urlEnodeUTF8(Constants.REDIRECT_URI));
        GetCodeRequest = GetCodeRequest.replace("SCOPE", Constants.SCOPE);
        result = GetCodeRequest;
        return result;
    }
    public static String urlEnodeUTF8(String str){
        String result = str;
        try {
            result = URLEncoder.encode(str,"UTF-8");
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }
    public static void main(String[] args) {
        System.out.println(getCodeRequest());
    }
}//源代码片段来自云代码http://yuncode.net


获取code后，请求以下链接获取access_token： 
https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret=SECRET&code=CODE&grant_type=authorization_code//源代码片段来自云代码http://yuncode.net