freeCodeCamp/curriculum/challenges/chinese/05-apis-and-microservices/mongodb-and-mongoose/use-model.find-to-search-yo...

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---
id: 587d7fb7367417b2b2512c0b
2021-01-12 16:31:18 +00:00
title: 使用 model.find() 查询数据库
challengeType: 2
forumTopicId: 301543
dashedName: use-model-find-to-search-your-database
---
# --description--
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我们尝试一种最简单的用法,`Model.find()` 接收一个查询 document一个 JSON 对象)作为第一个参数,一个回调函数作为第二个参数,它会返回由匹配到的数据组成的数组。这个方法支持很多搜索选项,详情请参阅文档。
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# --instructions--
请使用 `Model.find() -> [Person]` 修改 `findPeopleByName` 函数,以查询全部拥有指定姓名的人。
请使用函数参数中的 `personName` 作为搜索条件。
# --hints--
应成功地找到所有符合条件的数据
```js
(getUserInput) =>
$.post(getUserInput('url') + '/_api/find-all-by-name', {
name: 'r@nd0mN4m3',
age: 24,
favoriteFoods: ['pizza']
}).then(
(data) => {
assert.isArray(data, 'the response should be an Array');
assert.equal(
data[0].name,
'r@nd0mN4m3',
'item.name is not what expected'
);
assert.equal(data[0].__v, 0, 'The item should be not previously edited');
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
```
# --solutions--
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```js
/**
Backend challenges don't need solutions,
because they would need to be tested against a full working project.
Please check our contributing guidelines to learn more.
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*/
```