token的创建和使用

获得token的方法：
String userToken = getUserToken();
public String getUserToken(){
synchronized ("1") {
return "USERTOKEN"+System.currentTimeMillis();
}
}
setApplicationInfo(request, userToken, users.getUserId() + "_"
+ type + "_" + DateUtils.getTimestampByMillis());
//保存用户变量到服务器全局变量中
public Boolean setApplicationInfo(HttpServletRequest request, String uniqueName,
String uniqueId) {
ServletContext servlets = request.getSession().getServletContext();
servlets.setAttribute(uniqueName, uniqueId);
// 告知session存储成功
return true;
}
//后台根据token获得用户ID
Users user = baseService.getUser(request, token);

id=String.valueOf(user.getUserId());

public Users getUser(HttpServletRequest request,String token){
String string = request.getSession().getServletContext().getAttribute(token).toString();
if (string!=null) {
String[] split = string.split("_");
return (Users) baseDao.findById(Users.class, Long.parseLong(split[0]));//.findUser( ));//
} else{
return  null;
}

}

//在js中，可以通过token设置过滤用户不登录直接进入其他页面：
if(token != null && token != "" && token != undefined) {
$.ajax({
type: "post",
url: basePath + "/user/checkToken",
async: true,
timeout: 10000,
// 超时时间设置，单位毫秒
data: {
"token": token
},
success: function(data) {
if(data != "true") {
window.location.href = "login.html";
}
},
error: function(XMLHttpRequest, errorThrown) { // 请求完成后最终执行参数
window.location.href = "login.html";
}
});
}else{
window.location.href = "login.html";

}

@RequestMapping(value = "checkToken")

 public void updateUserInfos5(HttpServletRequest request,
HttpServletResponse response, String token) {
boolean bn = false;
try {
Object attribute = request.getSession().getServletContext()
.getAttribute(token);
if (attribute != null && attribute.toString().length() > 0) {
bn = true;
}
} catch (Exception e) {
}
JsonUtils.printCommonObject(response, bn + "");
}

//js中通过token获得id
function getUser() {
var userId = "";
$.ajax({
type: "post",
url: basePath + "/user/getUserId",
data: {
"token": token
},
async: true,
success: function(data) {
userId = eval("(" + data + ")");
$('input[name="selsRight"]').each(function() {
var ids = $(this).val();
if(userId == ids) {
$(this).attr("disabled","disabled");
}
})
$('[name="onclicks"]').each(function() {
var a = $(this).attr("vales");
if( userId == a) {
$(this).attr("onclick", "");
$(this).addClass("layui-btn layui-btn-disabled");
}
})
}
});
}


@RequestMapping("/getUserId")
public void getUserId(HttpServletResponse response,HttpServletRequest request, String token) {
String parameter = request.getSession().getServletContext().getAttribute(token).toString();
String[] split = parameter.split(",");
String[] split2 = split[0].split("_");
JsonUtils.printCommonObject(response,split2[0]);
}