Jmeter--JSON提取指定参数的值

{
    "success": true,
    "code": 200,
    "payload": [
        {
            "category": "ER-company",
            "functionType": "Page",
            "functionId": "f20d6896-168c-dcd5-e053-0c15d70aa968",
            "functionName": "ER-company-schemeEnrolment"
        },
        {
            "category": "ER-payrollGroup",
            "functionType": "Page",
            "functionId": "f222393f-c3e4-609b-e053-0b15d70aa64c",
            "functionName": "ER-payrollGroup-contribution-Preparer"
        },
        {
            "category": "ER-payrollGroup",
            "functionType": "Page",
            "functionId": "f20d6b34-4b1f-7936-e053-0b15d70a3f13",
            "functionName": "ER-payrollGroup-contribution-Approver"
        }
    ]
}

需要提取 "functionName": "ER-payrollGroup-contribution-Approver" 的"functionId"值

$.payload[?(@.functionName=='ER-payrollGroup-contribution-Approver')].functionId