Groovy JSON转换为CSV

Question

我在groovy中解析Json by JsonSlurper时遇到了一个问题。你能帮忙吗？我的json示例如下：

{
   "expand": "schema,names",
   "startAt": 0,
   "maxResults": 50,
   "total": 21,
   "issues":    [
            {
         "expand": "operations,versionedRepresentations",
         "id": "217580",
         "self": "issue/217580",
         "key": "ART-4070",
         "fields": {"summary": "#[ART] Pre.3 Verification \"S\""}
      },
            {
         "expand": "operations,versionedRepresentations",
         "id": "217579",
         "self": "issue/217579",
         "key": "ART-4069",
         "fields": {"summary": "Verification \"C\""}
      },
            {
         "expand": "operations,versionedRepresentations",
         "id": "217577",
         "self": "issue/217577",
         "key": "ART-4068",
         "fields": {"summary": "#[ART] Enum type"}
      },
   ]
}

在结果中，我期望得到一个csv文件，其中仅包含键和摘要的列表：

key,summary
ART-4070,#[ART] Pre.3 Verification \"S\"
ART-4069,Verification \"C\"
ART-4068,#[ART] Enum type

当我尝试开始解析这个json代码时，我遇到了一个错误: Exception in thread "main“groovy.json.JsonException:期望'}‘或'，’，但得到当前字符'S‘的int值为83

读取的当前字符是'S‘，INT值为83，预期为'}’或‘，’，但获得当前字符'S‘，INT值为83行号13索引号321“field”：{"summary"："#ART Pre.3验证"S""}

代码：

import groovy.json.*

def jsonSlurper = new JsonSlurper()
def json = '''
{
   "expand": "schema,names",
   "startAt": 0,
   "maxResults": 50,
   "total": 21,
   "issues":    [
            {
         "expand": "operations,versionedRepresentations",
         "id": "217580",
         "self": "issue/217580",
         "key": "ART-4070",
         "fields": {"summary": "#[ART] Pre.3 Verification \"S\""}
      },
            {
         "expand": "operations,versionedRepresentations",
         "id": "217579",
         "self": "issue/217579",
         "key": "ART-4069",
         "fields": {"summary": "Verification \"C\""}
      },
            {
         "expand": "operations,versionedRepresentations",
         "id": "217577",
         "self": "issue/217577",
         "key": "ART-4068",
         "fields": {"summary": "#[ART] Enum type"}
      },
   ]
}
'''
def obj = jsonSlurper.parseText(json)
println obj

请帮帮忙

Answer 1

第一:在'''字符串中需要两个\\；第二，在列表的最后一个元素上有一个,。

import groovy.json.JsonSlurper

def jsonSlurper = new JsonSlurper()
def json = '''
{
   "expand": "schema,names",
   "startAt": 0,
   "maxResults": 50,
   "total": 21,
   "issues":    [
            {
         "expand": "operations,versionedRepresentations",
         "id": "217580",
         "self": "issue/217580",
         "key": "ART-4070",
         "fields": {"summary": "#[ART] Pre.3 Verification \\"S\\""}
      },
            {
         "expand": "operations,versionedRepresentations",
         "id": "217579",
         "self": "issue/217579",
         "key": "ART-4069",
         "fields": {"summary": "Verification \\"C\\""}
      },
            {
         "expand": "operations,versionedRepresentations",
         "id": "217577",
         "self": "issue/217577",
         "key": "ART-4068",
         "fields": {"summary": "#[ART] Enum type"}
      }
   ]
}
'''
def obj = jsonSlurper.parseText(json)
println obj