如何在java中创建mongoDB objectid
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how to create mongoDB objectid in java
提问by AmeyChavan
Refering to post How to add an array to a MongoDB document using Java?I have created a mongo schema using java
it has sub elements, I am getting _idfor main document
I would like to get _idin sub elements also here output looks (I have marked the portion where I need _id) b.party.find().pretty();
参考帖子如何使用 Java 将数组添加到 MongoDB 文档？我已经使用 java 创建了一个 mongo 模式，它有子元素，我正在获取_id主文档我想_id在子元素中也在这里输出看起来（我已经标记了我需要的部分_id） b.party.find().pretty();
{
"_id" : ObjectId("5399aba6e4b0ae375bfdca88"),
"addressDetails" : [
{
// _id here
"locationName" : "Office",
"phones" : [
{ // _id here
"name" : "Tel1",
"value" : "95253-"
},
{ // _id here
"name" : "Tel2",
"value" : "95253-"
},
{ // _id here
"name" : "Tel3",
"value" : "95253-"
},
{ // _id here
"name" : "Fax1",
"value" : "0253-"
}
],
"address" : "A-3,MIDCA-3,MIDC",
"defaultBillAddrerss" : "",
"pincode" : "422 010",
"city" : null,
"state" : "1",
"country" : ""
},
{ // _id here
"locationName" : "Factory",
"phones" : [
{ // _id here
"name" : "Tel1",
"value" : "0253-"
},
{ // _id here
"name" : "Tel2",
"value" : "0253-"
},
{ // _id here
"name" : "Tel3",
"value" : "0253-"
},
{ // _id here
"name" : "Fax1",
"value" : "0253-"
}
],
"address" : "A-3 INDUSTRIAL AREA,",
"defaultBillAddrerss" : "",
"pincode" : "422 010",
"city" : null,
"state" : "1",
"country" : ""
}
],
"crLimit" : "0.0",
"crPeriod" : "",
"name" : "CROMPTON GREAVES "
}
}
Java code to create is similar to How to add an array to a MongoDB document using Java?
要创建的 Java 代码类似于 如何使用 Java 将数组添加到 MongoDB 文档？
Is there any code to create ObjectId("")programmatically in java?
是否有任何代码可以ObjectId("")在 Java 中以编程方式创建？
采纳答案by mohamedrias
To create objectId programmatically, use the following syntax
要以编程方式创建 objectId，请使用以下语法
ObjectId id = new ObjectId();
or
或者
ObjectId id = ObjectId.get();
In case you want to mention the parent ID itself,
如果您想提及父 ID 本身，
then
然后
ObjectId id = new ObjectId("5399aba6e4b0ae375bfdca88");
回答by john felix
To create objectId programmatically, use the following syntax
要以编程方式创建 objectId，请使用以下语法
Map<String,String> objectId = new HashMap<String,String>();
objectId.put("$oid","5399aba6e4b0ae375bfdca88");
Then insert into mongodb.
然后插入到mongodb中。
