Groovy在这里。我正在解析一个包含所有国家/地区列表的文件:
{
"countries": [
{
"id": "1",
"sortname": "AF",
"name": "Afghanistan"
},
{
"id": "2",
"sortname": "AL",
"name": "Albania"
},
...
]
}
我正在尝试将每个国家/地区读入一个可解析的对象,然后我可以在我的代码中处理它:
String countriesJson = new File(classLoader.getResource('countries.json').getFile()).text
def countries = new JsonSlurper().parseText(countriesJson)
countries.each { country ->
String sortname = country.sortname
String name = country.name
// do something with all this info and then move on to the next country
}
当我运行此代码时,我得到MissingPropertyException
s:
Exception in thread "main" groovy.lang.MissingPropertyException: No such property: sortname for class: java.util.LinkedHashMap$Entry
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:53)
at org.codehaus.groovy.runtime.callsite.GetEffectivePojoPropertySite.getProperty(GetEffectivePojoPropertySite.java:66)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGetProperty(AbstractCallSite.java:296)
...rest of stacktrace omitted for brevity
我可以做些什么来解决这个问题,以便将数组JSON对象解析为sortname
和name
变量?
答案 0 :(得分:1)
假设你的json包含在{ ... }
中,因此它有效(与问题不同),你需要首先获得countries对象。
这样:
countries.countries.each { country ->
String sortname = country.sortname
String name = country.name
// do something with all this info and then move on to the next country
}
也许将变量countries
重命名为不那么令人困惑的东西?