英文:
Extract specific data from json object and store them in a list
问题
[
{
"user": {
"name": "name1.n1",
"emailAddress": "example@example.com"
},
"role": "REVIEWER"
},
{
"user": {
"name": "name2.n2",
"emailAddress": "example2@example.com"
},
"role": "REVIEWER"
}
]
使用Java或Groovy提取json对象中的姓名（name）键的值，将其存储在列表中。可能有一个或多个用户。
英文:
I´m new to the world of json format. I have Json info stored in a json object and I only want to extract name key values in a list. At least I have one user and sometimes more than one user. Extraction using Java or Groovy.
{
"reviewers": [
{
"user": {
"name": "name1.n1",
"emailAddress": "example@example.com"
},
"role": "REVIEWER"
},
{
"user": {
"name": "name2.n2",
"emailAddress": "example2@example.com"
},
"role": "REVIEWER"
}
]
}
答案1
得分: 2
使用带有库org.json.JSONObject的Java；
JSONObject json = new JSONObject(YOUR_JSON_HERE);
JSONArray array = json.getJSONArray("reviewers");
for (int i = 0; i < array.length(); i++) {
JSONObject user = array.getJSONObject(i);
System.out.println(user.getJSONObject("user").get("name"));
}
英文:
Using Java with library org.json.JSONObject;
JSONObject json =new JSONObject(YOUR_JSON_HERE );
JSONArray array = json.getJSONArray("reviewers" );
for(int i=0;i<array.length();i++){
JSONObject user =array.getJSONObject(i);
System.out.println(user.getJSONObject("user").get("name"));
}
}
答案2
得分: 2
import groovy.json.JsonSlurper
def json = '''{
"reviewers": [
{
"user": {
"name": "name1.n1",
"emailAddress": "example@example.com"
},
"role": "REVIEWER"
},
{
"user": {
"name": "name2.n2",
"emailAddress": "example2@example.com"
},
"role": "REVIEWER"
}
]
}
'''
def obj = new JsonSlurper().parseText(json)
println obj.reviewers.collect{ it.user.name } // v1
println obj.reviewers*.user.name // the same as above but shorter
<details>
<summary>英文:</summary>
basic groovy+json doc here: https://groovy-lang.org/json.html
import groovy.json.JsonSlurper
def json = '''{
"reviewers": [
{
"user": {
"name": "name1.n1",
"emailAddress": "example@example.com"
},
"role": "REVIEWER"
},
{
"user": {
"name": "name2.n2",
"emailAddress": "example2@example.com"
},
"role": "REVIEWER"
}
]
}
'''
def obj = new JsonSlurper().parseText(json)
println obj.reviewers.collect{ it.user.name } // v1
println obj.reviewers*.user.name // the same as above but shorter
</details>
# 答案3
**得分**: 0
```python
您可以像这样使用Groovy获取名称列表：
jason = '''{
"reviewers": [
{
"user": {
"name": "name1.n1",
"emailAddress": "example@example.com"
},
"role": "REVIEWER"
},
{
"user": {
"name": "name2.n2",
"emailAddress": "example2@example.com"
},
"role": "REVIEWER"
}
]
}'''
import groovy.json.JsonSlurper
def jsonslurper = new JsonSlurper()
def object = jsonslurper.parseText(jason)
List names = object.findAll { it.value instanceof List }
.values()
.flatten()
.collect { it.user.name }
println names
英文:
You can get a list of names like this, using just Groovy:
jason = '''{
"reviewers": [
{
"user": {
"name": "name1.n1",
"emailAddress": "example@example.com"
},
"role": "REVIEWER"
},
{
"user": {
"name": "name2.n2",
"emailAddress": "example2@example.com"
},
"role": "REVIEWER"
}
]
}
'''
import groovy.json.JsonSlurper
def jsonslurper = new JsonSlurper()
def object = jsonslurper.parseText(jason)
List names = object.findAll { it.value instanceof List }
.values()
.flatten()
.collect { it.user.name }
println names
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