通過微信網頁授權獲取用戶OpenId（redirect_uri 參數錯誤）

一、微信公衆平臺配置

登陸微信公衆平臺

開發->接口權限->網頁服務->網頁授權獲取用戶基本信息->修改
在彈出框中輸入申請的某**殼免費域名：j*s**x***.imwork.net

微信公衆平臺升級之後的增加第3步下載.txt文件上傳至服務器

二、http

1.路由器上配置80端口指向自己的電腦相應tomcat端口

2.部分代碼

	public String prequery(HttpServletRequest request, HttpServletResponse reponse) throws Exception {
		logger.info("query-elec");
		String oauthUrl = String.format(OAUTH_CODE_URL,
				PoolWeixinConfig.getConfig().getAppId(),
				URLEncoder.encode("http://j*s**x***.imwork.net/sypro/site/bind/info/query", "UTF-8"));
		logger.info("redirect:" + oauthUrl);
		return "redirect:" + oauthUrl;
	}

protected static final String OAUTH_CODE_URL = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=%s&redirect_uri=%s&response_type=code&scope=snsapi_base&state=req#wechat_redirect";

三、https

1.路由器上配置443端口指向自己的電腦相應tomcat端口

2.tomcat配置ssl協議（server.xml）

    <Connector port="443" protocol="HTTP/1.1" SSLEnabled="true"
               maxThreads="150" scheme="https" secure="true"
               clientAuth="false" sslProtocol="TLS" 
			   keystoreFile="D:\certs_weixin\tomcat.keystore" keystorePass="******" ciphers="tomcat"
			   />

具體配置參見：http://blog.csdn.net/xiaoshuji/article/details/51602043

3.部分代碼

	public String prequery(HttpServletRequest request, HttpServletResponse reponse) throws Exception {
		logger.info("query-elec");
		String oauthUrl = String.format(OAUTH_CODE_URL,
				PoolWeixinConfig.getConfig().getAppId(),
				URLEncoder.encode("https://j*s**x***.imwork.net/sypro/site/bind/info/query", "UTF-8"));
		logger.info("redirect:" + oauthUrl);
		return "redirect:" + oauthUrl;
	}

四、注意

回調redirect_uri不要加端口否則會報參數錯誤，默認支持80,443端口