Jmeter json 提取并删除重复项以写入文件

Question

import com.jayway.jsonpath.JsonPath

def path = vars.get("BaseFilePath") + "/" + vars.get("FhirVersion") + "/Get/Patient/";
def newLine = System.getProperty('line.separator')
def response = prev.getResponseDataAsString()

//address
def addressCSV = new File(path + 'address.csv')
def addressList = []
def addressCityCSV = new File(path + 'address-city.csv')
def cityList = []
def addressCountryCSV = new File(path + 'address-country.csv')
def countryList = []
def addressPostalCodeCSV = new File(path + 'address-postalcode.csv')
def postalCodeList = []
def addressStateCSV = new File(path + 'address-state.csv')
def stateList = []

def addressArray = JsonPath.read(response, '$..address')
addressArray.each { eachAddress ->
    eachAddress.each { subAddress ->
        subAddress.get('line').each { line ->
            addressList.add(line)
        }
  
  cityList.add(subAddress.get('city'))
  stateList.add(subAddress.get('state'))
  postalCodeList.add(subAddress.get('postalCode'))
  countryList(subAddress.get('country'))    
    }

addressList.unique().each { address ->
 addressCSV << address << newLine 
 }
cityList.unique().each { city ->
 addressCityCSV << city << newLine 
 }
countryList.unique().each { country ->
 addressCountryCSV << country << newLine
 }
postalCodeList.unique().each { postalCode ->
 addressPostalCodeCSV << postalCode << newLine
 }
stateList.unique().each { state ->
 addressStateCSV << state << newLine
 }
}

我在 jmeter 的 JSR223 post 处理器中编写了这个脚本，以从 json 响应中提取数据，addressList、cityList 和其他列表包含重复元素，所以我想删除重复项并推送唯一值写入文件。但是这段代码不起作用。谁能帮我解决这个问题

Answer 1

要仅保留唯一值，请使用 Set

We can use the toSet() function to convert a List to a Set.

因此您可以将其添加到相关列表中：

 uniqueStateCSVSet = addressStateCSV.toSet()

或者预定义，如

 Set addressArray

Answer 2

调用 Collection.unique() 函数应该可以解决问题，即

addressList = addressList.unique()

演示：

但是，如果您的集合包含自定义对象（即非正常 Strings) you will need to come up with a special Comparator 实现，即

def myComparator = [
        equals: { delegate.equals(it) },
        compare: { source, target ->
            source.someField <=> target.someField
        }
] as Comparator

def unique = addressList.unique(myComparator)

有关更多 Groovy 提示和技巧，请参阅 The Groovy Templates Cheat Sheet for JMeter

Jmeter json 提取并删除重复项以写入文件

Jmeter json extraction and removing the duplicates to write into a file

groovy

json

jmeter

jsr223