【发布时间】:2016-01-28 06:40:46
【问题描述】:
我的正则表达式有问题。在字符串中设置表达式时会出错。看这个!我想在数组中返回一个对象,该对象具有我的搜索值,例如“Daventry”。
我正在使用:{[^{}\]]*Daventry[^{}\]]*}
[
{
"id": 113548,
"name": "Daventry",
"state_id": 1446,
"state_name": "Northamptonshire",
"state_code": "J1",
"country_id": 232,
"country_name": "United Kingdom",
"country_code": "GB",
"country_flag": "GB.png",
"currency_code": "GBP",
"currency_symbol": "£"
},
{
"id": 192392,
"name": "Daverdisse",
"state_id": 484,
"state_name": "Luxembourg",
"state_code": "06",
"country_id": 22,
"country_name": "Belgium\n",
"country_code": "BE",
"country_flag": "BE.png",
"currency_code": "EUR",
"currency_symbol": "€"
},
{
"id": 115981,
"name": "Davey",
"state_id": 4138,
"state_name": "Nebraska",
"state_code": "NE",
"country_id": 233,
"country_name": "United States\n",
"country_code": "US",
"country_flag": "US.png",
"currency_code": "USD",
"currency_symbol": "$"
},
{
"id": 142184,
"name": "David",
"state_id": 3350,
"state_name": "Neamt",
"state_code": "28",
"country_id": 181,
"country_name": "Romania\n",
"country_code": "RO",
"country_flag": "RO.png",
"currency_code": "RON",
"currency_symbol": "lei"
},
{
"id": 108261,
"name": "David",
"state_id": 4127,
"state_name": "Kentucky",
"state_code": "KY",
"country_id": 233,
"country_name": "United States\n",
"country_code": "US",
"country_flag": "US.png",
"currency_code": "USD",
"currency_symbol": "$"
}
]
并且只返回:
[
{
"id": 113548,
"name": "Daventry",
"state_id": 1446,
"state_name": "Northamptonshire",
"state_code": "J1",
"country_id": 232,
"country_name": "United Kingdom",
"country_code": "GB",
"country_flag": "GB.png",
"currency_code": "GBP",
"currency_symbol": "£"
}
]
但是给出以下错误:
java.util.regex.PatternSyntaxException:正则表达式模式中的语法错误 索引 1 附近:10-27 09:53:48.297 15052-15052/com.plugapps.freecommerce E/AndroidRuntime: {[/^{}]]Daventry[/^{}]]}
我该怎么办?
【问题讨论】:
-
不要尝试正则表达式,而是使用 Json 解析,您可以获得对象作为单独的数组。
-
@GIRIDHARANARI 想使用,因为我有一个包含 100,000 个对象的文件,但是在 Android 中的搜索非常慢。
标签: java android regex expression