Question

我正在尝试解析以下格式的JSON字符串

{"edgeNodeRegistrationStatus": ["{\"CONFIRMED\":\"TRUE\"}"]}

我写了一个代码来解析它。

import groovy.json.JsonOutput
import groovy.json.JsonSlurper

def jsonSlurper = new JsonSlurper()

def object = jsonSlurper.parseText('{"edgeNodeRegistrationStatus": ["{\"CONFIRMED\":\"TRUE\"}"]}')

println(object["edgeNodeRegistrationStatus"][0])

我希望代码可以打印{"CONFIRMED":"TRUE"}。但是它抛出了错误

Caught: groovy.json.JsonException: expecting a ',' or a ']',  but got 
the current character of  'C' with an int value of 67  on array index of 1 


The current character read is 'C' with an int value of 67
expecting a ',' or a ']',  but got 
the current character of  'C' with an int value of 67  on array index of 1 

line number 1
index number 35
{"edgeNodeRegistrationStatus": ["{"CONFIRMED":"TRUE"}"]}
...................................^
groovy.json.JsonException: expecting a ',' or a ']',  but got 
the current character of  'C' with an int value of 67  on array index of 1 


The current character read is 'C' with an int value of 67
expecting a ',' or a ']',  but got 
the current character of  'C' with an int value of 67  on array index of 1 

line number 1
index number 35
{"edgeNodeRegistrationStatus": ["{"CONFIRMED":"TRUE"}"]}
...................................^
    at jdoodle.run(jdoodle.groovy:4)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
Command exited with non-zero status 1

Answer 1

在\"字符串中使用''只会在字符串本身内部提供"（与""字符串相同）。但是，您想引用JSON的\"（不是俗套的）。因此，您需要改用\\"。

除非您真的想使用该字符串进行测试，否则最好只在代码中生成期望的JSON。因此，您不必为此而战。例如

JsonOutput.toJson([edgeNodeRegistrationStatus: [JsonOutput.toJson([CONFIRMED: "TRUE"])]])

Answer 2

或者，您可以使用不同的String分隔符：

def text = $/{"edgeNodeRegistrationStatus": ["{\"CONFIRMED\":\"TRUE\"}"]}/$

def object = jsonSlurper.parseText(text)

println object.edgeNodeRegistrationStatus[0]

解析值为JSON字符串数组的JSON对象

2 个答案: