第三方登入流程是：先擷取code---->然後擷取access_token----->根據token擷取使用者資訊。
前台頁面實作步驟：點選微網誌登入按鈕---->打開一個子視窗，進行授權------>授權完成，跳轉到首頁或上次浏覽的頁面。
1、寫第三方登入的按鈕，點選按鈕時，打開一個子視窗。
redirect_uri是你在微網誌上設定的回調位址。
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<script type="text/javascript" src="http://statics.2cto.com/js/jquery.min.js"></script>
</head>
<script type="text/javascript">
var qqAuthWin,weiboAuthWin;
function closeQQWin(){
var result = $("#qq").val();
if(result != ""){
console.log(result);
qqAuthWin.close();
}else{
console.log("值為空");
}
}
function loginQQ(){
qqAuthWin = window.open("https://graph.qq.com/oauth2.0/authorize?response_type=code&client_id=CLIENT_ID&state=register&redirect_uri=http://localhost:9090/logback/qq.jsp",
'QQ授權登入','width=770,height=600,menubar=0,scrollbars=1,'+
'resizable=1,status=1,titlebar=0,toolbar=0,location=1');
}
function closeWeiboWin(){
var result = $("#weibo").val();
if(result != ""){
console.log(result);
weiboAuthWin.close();
}else{
console.log("值為空");
}
}
function loginWeibo(){
weiboAuthWin = window.open("https://api.weibo.com/oauth2/authorize?client_id=CLIENT_ID&response_type=code&state=register&redirect_uri=http://localhost:9090/logback/weibo.jsp",
'微網誌授權登入','width=770,height=600,menubar=0,scrollbars=1,'+
'resizable=1,status=1,titlebar=0,toolbar=0,location=1');
}
</script>
<body>
<input type="hidden" id="qq" value="">
<a href="#" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" onClick="loginQQ()">QQ登入</a>
<br><br>
<hr>
<br>
<input type="hidden" id="weibo" value="">
<a href="#" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" onClick="loginWeibo()">微網誌登入</a>
</body>
</html>
2、回調位址頁（qq.jsp、weibo.jsp）
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
String code = request.getParameter("code");//擷取QQ傳回的code
String state = request.getParameter("state");
%>
<!DOCTYPE HTML>
<html>
<head>
<base href="<%=basePath%>" target="_blank" rel="external nofollow" >
<title>My JSP 'weibo.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<script type="text/javascript" src="http://statics.2cto.com/js/jquery.min.js"></script>
<script>
$(function(){
var code = "<%=code%>";
var state = "<%=state%>";
$.ajax({
url:"http://localhost:8080/cms_manage/api/qqLogin",
type:"post",
data:{code:code,state:state},
dataType:"json",
success:function(result){
result = JSON.stringify(result);
console.log(result);
//把傳回的資料傳給父視窗的隐藏域中
window.opener.document.getElementById("qq").value = result;
//授權完成後，關閉子視窗
window.opener.closeQQWin();
}
});
});
</script>
</head>
<body>
登入成功。
</body>
</html>
qq.jsp和weibo,jsp是一樣的。。。
3、java代碼
@Controller
public
class
WeiboLoginController {
private
Logger logger = Logger.getLogger(WeiboLoginController.
class
);
private
final
static
String CLIENT_ID =
""
;
private
final
static
String CLIENT_SERCRET =
""
;
private
final
static
String GET_TOKEN_URL =
"https://api.weibo.com/oauth2/access_token"
;
private
final
static
String REDIRECT_URI =
"http://localhost:9090/logback/weibo.jsp"
;
private
final
static
String GET_USER_INFO =
"https://api.weibo.com/2/users/show.json"
;
private
final
static
String GET_TOKEN_INFO_URL =
"https://api.weibo.com/oauth2/get_token_info"
;
private
final
static
String STATE =
"register"
;
@RequestMapping
(value=
"/api/weiboLogin"
,method=RequestMethod.POST)
@ResponseBody
public
CMS_Result weiboLogin(HttpServletRequest request,HttpServletResponse response){
CMS_Result result =
null
;
String error_code = request.getParameter(
"error_code"
);
if
(StringUtils.isNotBlank(error_code)){
result = CMS_Result.bulid(
"5001"
,
"微網誌授權失敗"
);
}
else
{
try
{
//擷取code
String code = request.getParameter(
"code"
);
logger.info(
"code："
+ code);
//擷取state
String state = request.getParameter(
"state"
);
logger.info(
"state:"
+state);
String access_token =
""
;
String expires_in =
""
;
String uid =
""
;
if
(STATE.equals(state)){
//擷取token
JSONObject token = getAccessToken(code);
access_token = token.getString(
"access_token"
);
uid = token.getString(
"uid"
);
expires_in = String.valueOf(token.getInt(
"expires_in"
));
logger.info(
"token:"
+token);
}
else
{
result = CMS_Result.bulid(
"5001"
,
"微網誌授權失敗"
);
}
//查詢該使用者資訊
OauthUser oauthUser = oauthUserService.findWeiboByIdentifier(uid);
Master master =
null
;
if
(oauthUser !=
null
){
master = masterInfoDao.findById(oauthUser.getMaster_id());
}
else
{
//擷取使用者資訊
JSONObject userInfo = getUserInfo(access_token, uid);
logger.info(
"使用者資訊"
+userInfo);
String nickname = userInfo.getString(
"screen_name"
);
String profile_image_url = userInfo.getString(
"profile_image_url"
);
String gender =
"f"
.equals(userInfo.getString(
"gender"
))?
"1"
:
"0"
;
//向第三方登入表中添加資料
OauthUser user =
new
OauthUser();
user.setId(UUID.randomUUID().toString());
String master_id = UUID.randomUUID().toString();
user.setMaster_id(master_id);
user.setIdentity_type(
"weibo"
);
user.setIdentifier(uid);
user.setCredential(access_token);
user.setExpires_in(expires_in);
user.setStatus(
"0"
);
oauthUserService.insert(user);
//向使用者表中添加預設資料
Master masterUser =
new
Master();
masterUser.setId(master_id);
masterUser.setNickname(nickname);
masterUser.setHead_portrait(profile_image_url);
masterUser.setSex(gender);
//由于第三方登入沒有使用者名密碼，而且該字段在資料庫中不為空，在此設定預設使用者名密碼
masterUser.setUser_name(
"wbu"
+access_token.substring(
,
9
));
masterUser.setPassword(
"wbp"
+access_token.substring(
,
9
));
masterInfoService.insertDefault(masterUser);
master = masterUser;
}
result = CMS_Result.ok();
}
catch
(Exception e) {
e.printStackTrace();
result = CMS_Result.bulid(
"5001"
,
"登入失敗"
);
}
}
return
result;
}
private
JSONObject getAccessToken(String code) {
StringBuilder sb =
new
StringBuilder();
sb.append(
"grant_type=authorization_code"
);
sb.append(
"&client_id="
+ CLIENT_ID);
sb.append(
"&client_secret="
+ CLIENT_SERCRET);
sb.append(
"&redirect_uri="
+ REDIRECT_URI);
sb.append(
"&code="
+ code);
String result = HttpsUtil.post(GET_TOKEN_URL,sb.toString());
JSONObject json =
new
JSONObject(result);
return
json;
}
private
JSONObject getUserInfo(String access_token,String uid){
StringBuilder sb =
new
StringBuilder();
sb.append(
"?access_token="
+ access_token);
sb.append(
"&uid="
+ uid);
String result = HttpsUtil.get(GET_USER_INFO+sb.toString());
//傳回參數：檢視http://open.weibo.com/wiki/2/users/show
JSONObject json =
new
JSONObject(result);
return
json;
}
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