1.fix NPE issue

luoo_user/src/main/java/com/luoo/user/controller/UserController.java

@@ -83,7 +83,7 @@ public class UserController {
 	public ResultVO appLogin(@PathVariable String mobile,@PathVariable String checkcode){
 		// 得到缓存中的验证码
 		String checkcodeRedis = (String)redisTemplate.opsForValue().get("checkcode_"+mobile);
-		if (checkcodeRedis.isEmpty()){
+		if (null==checkcodeRedis||checkcodeRedis.isEmpty()){
 			return new ResultVO(false,StatusCode.ERROR,"请先获取手机验证码");
 		}
 		if (!checkcodeRedis.equals(checkcode)) {
@@ -93,7 +93,7 @@ public class UserController {
 		return ResultVO.success(userVO);
 	}
 	
-	@ApiOperation(value="3.游客模式返回token",notes="token中的subject和roles均为tourist")
+	@ApiOperation(value="3.游客登录返回token",notes="token中的subject和roles均为tourist")
 	@RequestMapping(value = "/touristLogin",method = RequestMethod.GET)
 	public ResultVO<UserVO> touristLogin(){
 		UserVO userVO=userService.touristLogin();