绑定邮箱-添加已绑定判断

src/main/java/com/peanut/modules/book/controller/MyUserController.java

@@ -279,6 +279,11 @@ public class MyUserController {
         String email = map.get("email").toString();
         String code = map.get("code").toString();
         Integer id = Integer.valueOf(map.get("id").toString());
+        //查询是否存在当前邮箱
+        LambdaQueryWrapper<MyUserEntity> wrapper = new LambdaQueryWrapper();
+        wrapper.eq(MyUserEntity::getEmail,email);
+        MyUserEntity userEntity = userService.getOne(wrapper);
+        if (userEntity == null) {
             String redisCode = redisTemplate.opsForValue().get("RegistCode"+email);
             if(StringUtils.isEmpty(redisCode)){
                 return R.error("验证码已过期，请重试");
@@ -291,7 +296,9 @@ public class MyUserController {
             userInfo.setEmail(email);
             userService.updateById(userInfo);
             return R.ok();
-
+        }else {
+            return R.error("邮箱已被绑定！");
+        }
     }
 
     @RequestMapping("/register")