所以我在 MVC4 中创建了一个 WebApi 项目，但无法理解 JSON 输出。我不完全确定这是 JSON 的预期输出还是我做错了什么。
我有三个表（pb_Project、pb_Tasks 和 pb_Priority）。关系如下： 项目可能有很多任务，每个项目可以有一个优先级。
实体 http://img705.imageshack.us/img705/9294/stackoverflowentities.png
现在，我收到的输出很奇怪，而且不是很直观。我不确定这是否是预期的 JSON（因为我是全新的）。当我运行网站以检索项目的 JSON 输出时，我得到以下结果。
[
{
"$id": "1",
"pb_Priority": {
"$id": "2",
"pb_Projects": [
{
"$ref": "1"
},
{
"$id": "3",
"pb_Priority": {
"$ref": "2"
},
"pb_Tasks": [
{
"$id": "4",
"pb_Projects": {
"$ref": "3"
},
"TASK_ID": 3,
"PROJECT_ID": 2,
"USER_ID": 2,
"DUE_DATE": "2012-11-19T00:00:00",
"PRIORITY_ID": 2,
"TASK_NAME": "project 2 task 1",
"DESCRIPTION": "asdf"
}
],
"PROJECT_ID": 2,
"USER_ID": 2,
"NAME": "Project2",
"DESCRIPTION": "project 2 description",
"BUDGET": 1,
"LOCATION": "CANADA",
"START_DATE": "2012-11-18T00:00:00",
"PRIORITY_ID": 1,
"PROJ_SCALE": null,
"NOTES": null
}
],
"PRIORITY_ID": 1,
"PRIORITY_LEVEL": 1
},
"pb_Tasks": [
{
"$id": "5",
"pb_Projects": {
"$ref": "1"
},
"TASK_ID": 1,
"PROJECT_ID": 1,
"USER_ID": 1,
"DUE_DATE": "2012-11-19T00:00:00",
"PRIORITY_ID": 1,
"TASK_NAME": "project 1 task 1",
"DESCRIPTION": "adsf"
},
{
"$id": "6",
"pb_Projects": {
"$ref": "1"
},
"TASK_ID": 2,
"PROJECT_ID": 1,
"USER_ID": 2,
"DUE_DATE": "2012-11-19T00:00:00",
"PRIORITY_ID": 1,
"TASK_NAME": "project 1 task 2 user 2",
"DESCRIPTION": "asd"
}
],
"PROJECT_ID": 1,
"USER_ID": 1,
"NAME": "Project1",
"DESCRIPTION": "project 1 description",
"BUDGET": 1000,
"LOCATION": "USA",
"START_DATE": "2012-11-18T00:00:00",
"PRIORITY_ID": 1,
"PROJ_SCALE": null,
"NOTES": null
},
{
"$ref": "3"
}
]
控制器如下：
public IEnumerable<pb_Projects> Getpb_Projects()
{
return db.pb_Projects.AsEnumerable();
}
我希望从这个 json 结果中得到一个项目（对象）列表以及任何其他相关的 FK 等。而在这里我得到一个大对象，另一个参考作为第二个对象。我做错了什么吗，我会期待这样的事情（不要担心它只是测试数据，所以没有真正的密码：P）......
[
{
"$id": "1",
"UserId": 1,
"CreateDate": "2012-11-18T21:46:56.78",
"ConfirmationToken": null,
"IsConfirmed": true,
"LastPasswordFailureDate": null,
"PasswordFailuresSinceLastSuccess": 0,
"Password": "AIGvGbJIedgTyY+m08DCVhZbVnRTWzW6kvl1JMOqsFqOCSjnJTBlGUGmVveAYIONJw==",
"PasswordChangedDate": "2012-11-18T21:46:56.78",
"PasswordSalt": "",
"PasswordVerificationToken": null,
"PasswordVerificationTokenExpirationDate": null
},
{
"$id": "2",
"UserId": 2,
"CreateDate": "2012-11-18T21:48:05.067",
"ConfirmationToken": null,
"IsConfirmed": true,
"LastPasswordFailureDate": null,
"PasswordFailuresSinceLastSuccess": 0,
"Password": "ACeoUpOVNEvgumvmSkFziRkNQzTlZC8+KAy32egXQseKLmhmJGX/VDXRXylkBUph3Q==",
"PasswordChangedDate": "2012-11-18T21:48:05.067",
"PasswordSalt": "",
"PasswordVerificationToken": null,
"PasswordVerificationTokenExpirationDate": null
},
{
"$id": "3",
"UserId": 3,
"CreateDate": "2012-11-19T00:35:49.163",
"ConfirmationToken": null,
"IsConfirmed": true,
"LastPasswordFailureDate": null,
"PasswordFailuresSinceLastSuccess": 0,
"Password": "AF7W+1FNLcaA2qJ3nmrB7S9mkJmJGZCpAZYbyH5+iXryq1epr8i67ddgSbvFQF1bQw==",
"PasswordChangedDate": "2012-11-19T00:35:49.163",
"PasswordSalt": "",
"PasswordVerificationToken": null,
"PasswordVerificationTokenExpirationDate": null
},
{
"$id": "4",
"UserId": 4,
"CreateDate": "2012-11-19T00:39:00.667",
"ConfirmationToken": null,
"IsConfirmed": true,
"LastPasswordFailureDate": null,
"PasswordFailuresSinceLastSuccess": 0,
"Password": "ABPdfSj8jZAWqhHMDuTVQuL3AiEmiplSujA/GNjQoGoMQm0zhNwAAOaInbqrXFrM0g==",
"PasswordChangedDate": "2012-11-19T00:39:00.667",
"PasswordSalt": "",
"PasswordVerificationToken": null,
"PasswordVerificationTokenExpirationDate": null
}
]
这是未格式化的原始 JSON
[{"$id":"1","pb_Priority":{"$id":"2","pb_Projects":[{"$ref":"1"},{"$id":"3","pb_Priority":{"$ref":"2"},"pb_Tasks":[],"PROJECT_ID":2,"USER_ID":2,"NAME":"test2","DESCRIPTION":"test2","BUDGET":1.0,"LOCATION":"test","START_DATE":"2012-11-18T00:00:00","PRIORITY_ID":1,"PROJ_SCALE":null,"NOTES":null}],"PRIORITY_ID":1,"PRIORITY_LEVEL":1},"pb_Tasks":[{"$id":"4","pb_Projects":{"$ref":"1"},"TASK_ID":1,"PROJECT_ID":1,"USER_ID":1,"DUE_DATE":"2012-11-19T00:00:00","PRIORITY_ID":1,"TASK_NAME":"asdf","DESCRIPTION":"adsf"},{"$id":"5","pb_Projects":{"$ref":"1"},"TASK_ID":2,"PROJECT_ID":1,"USER_ID":2,"DUE_DATE":"2012-11-19T00:00:00","PRIORITY_ID":1,"TASK_NAME":"sdf","DESCRIPTION":"asd"},{"$id":"6","pb_Projects":{"$ref":"1"},"TASK_ID":3,"PROJECT_ID":1,"USER_ID":2,"DUE_DATE":"2012-11-19T00:00:00","PRIORITY_ID":2,"TASK_NAME":"dsf","DESCRIPTION":"asdf"}],"PROJECT_ID":1,"USER_ID":1,"NAME":"test","DESCRIPTION":"test","BUDGET":null,"LOCATION":"test","START_DATE":"2012-11-18T00:00:00","PRIORITY_ID":1,"PROJ_SCALE":null,"NOTES":null},{"$ref":"3"}]