Spring React MongoDB模板使用对象部分更新文档 [英] Spring reactive mongodb template update document partially with objects

问题描述

我有一些要在mongo db中更新的类(文档)

I have some class (document) to update in mongo db

文档存储在mongo中(实际示例更为复杂):

The document stored in mongo (real example more complicated):

{
   "id": "5ba6b0576cba836aa43ab379",
   "firstName": "First Name",
   "lastName": "Last Name",
   "mobile": "123456789"
   ....................
   ....................
   ....................
   "address": "some address"
}

比方说，我在上面的所有这些字段中都有Foo类.

Let's say, I have class Foo with all these fields above.

我从外部部分对象接收(Foo只有3个值，所有其他值均为空)，例如:

I receive from outside partial object (Foo with only 3 value, all other values are null), e.g.:

{
   "id": "5ba6b0576cba836aa43ab379",
   "mobile": "987654321",
   "address": "other address"
}

我想更新文档，但仅包含接收到的字段.

I want to update document, but with received fields only.

我发现只有一个选项可以使用reactmongotemplate手动进行. 我正在寻找更多的不错"的方法，而无需手动创建Update对象.像这样:

I found only option to do it manually with reactivemongotemplate. I am looking for more "nice" way without creating manually Update object. Something like:

reactivemongotemplate.updateFirst(
    Query.query(Criteria.where("id").is("5ba6b0576cba836aa43ab379")), 
    partialFoo // (object of class is Foo)
)

有人知道有什么方法吗?

Does anybody knows any way to do this?

推荐答案

我不知道这是否是最好的"方法，但是对于我正在开始的其他Web服务，我一直在尝试在内部简化PATCH和PUT方法，然后使用org.apache.commons.beanutils.PropertyUtils库通过Map进行操作，然后创建要传递给ReactiveMongoTemplate的Update对象，或多或少是这样的:

I don't know if this is the "nicest" way to do it, but for a rest webservice I'm starting, I've been trying to simplify internally the PATCH and PUT methods and I do it using a Map using the org.apache.commons.beanutils.PropertyUtils library and then I create the Update object I am passing to the ReactiveMongoTemplate, more or less like this:

Map<String, Object> changes = PropertyUtils.describe(myDto);
// ... check the fields that must be sets and other business rules ...
Update updateFields = new Update();
for(Map.Entry<String, Object> entry : changes.entrySet()){
  updateFields.set(entry.getKey(), entry.getValue());
}
reactivemongotemplate.updateFirst(query(where("id").is(myId)), updateFields, MyEntity.class)

这意味着您的MyDto类具有您需要的每个字段的getter和setter，但是到目前为止，它运行良好.

This implies that your MyDto class has the getters and setters for each field you need, but it is working pretty well so far.

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