Question

在我的node js应用程序中，我具有以下路由。

router.get('/:id', [auth], asyncHandler(async (req, res) => {
  const post = await postService.getPostById(req.params.id);
  res.json(post);
}));

router.get('/all', [auth], asyncHandler(async (req, res) => {
  const posts = await postService.getAllPosts(req.user.id);
  res.json(posts);
}));

在这里，当我呼叫发布/所有路线时，它崩溃了。它说，对模型“ Post”的路径“ _id”的值的，对ObjectId的转换失败对模型“ Post”的路径“ _id”的值“ all”的对对象ID的“对象”广播失败

但是，如果我评论第一条路线，第二条路线就可以完美地工作。为什么会这样？

Answer 1

那是因为/all也匹配/:id。您需要做的是将/all移到/:id上方：

// Match this first
router.get('/all', [auth], asyncHandler(async (req, res) => {
  const posts = await postService.getAllPosts(req.user.id);
  res.json(posts);
}));

// Then if not /all treat route as the variable `id`
router.get('/:id', [auth], asyncHandler(async (req, res) => {
  const post = await postService.getPostById(req.params.id);
  res.json(post);
}));

Answer 2

因为当您调用/ all route时，它将重定向到/：id route并尝试将其全部转换为objectId。所以你需要像这样改变路线

router.get('/one/:id', [auth], asyncHandler(async (req, res) => {
  const post = await postService.getPostById(req.params.id);
  res.json(post);
}));

router.get('/all', [auth], asyncHandler(async (req, res) => {
  const posts = await postService.getAllPosts(req.user.id);
  res.json(posts);
}));`

Node JS Express路由冲突问题

2 个答案: