jmeter在beanshell里用代码提取参数

接口返回json（response_data）：

{
    "Code":1,
    "Message":null,
    "Error":null,
    "Data":{
        "Tire":["20寸及以上轮毂安装及动平衡",
            "朝阳轮胎安装服务【14-15寸】",
        ], "Beautify":[
            {
                "Cost":"14.00",
                "Price":"14.00",
                "DefaultPrice":"14.00",
                "OriginalPrice":"15.00",
                "DayLimit":98,
                "ActivityId":null,
                "ActivityName":null,
                "StartTime":null,
                "SalesStrategyType":"Default",
                "CategoryId":160,
                "RootCategoryName":"挪车贴",
                "RootCategoryId":159,
                "Description":"用户",
                "ProductName":"挪车车贴贴",
                "PID":"FU-MD-NCT-F|1",
                "PKID":760,
                "CategoryName":"挪车贴",
                "EndTime":null,
                "SoldCount":48,
                "TodaySurplus":98,
                "ProductCommentRate":4,
                "BigImageUrl":null,
                "SmallImageUrl":null
            },
            {
                "Cost":"9.90",
                "Price":"9.90",
                "DefaultPrice":"20.00",
                "OriginalPrice":"100.00",
                "DayLimit":1,
                "ActivityId":"71383419-8811-4f5b-9522-33865214c62e",
                "ActivityName":"9.9洗车",
                "StartTime":"2019/06/04 12:22:09",
                "SalesStrategyType":"Groupon",
                "CategoryId":4,
                "RootCategoryName":"美容清洗",
                "RootCategoryId":1,
                "Description":"整车泡沫冲洗擦干",
                "ProductName":"标准洗车-五座轿车",
                "PID":"FU-MD-BZXC-F|1",
                "PKID":482,
                "CategoryName":"标准洗车",
                "EndTime":"2020/01/06 16:45:00",
                "SoldCount":334,
                "TodaySurplus":1,
                "ProductCommentRate":4,
                "BigImageUrl":null,
                "SmallImageUrl":null
            },
            {
                "Cost":"20.00",
                "Price":"20.00",
                "DefaultPrice":"20.00",
                "OriginalPrice":"100.00",
                "DayLimit":96,
                "ActivityId":null,
                "ActivityName":null,
                "StartTime":null,
                "SalesStrategyType":"Default",
                "CategoryId":4,
                "RootCategoryName":"美容清洗",
                "RootCategoryId":1,
                "Description":"整车",
                "ProductName":"标准洗车-五座轿车",
                "PID":"FU-MD-BZXC-F|1",
                "PKID":482,
                "CategoryName":"标准洗车",
                "EndTime":null,
                "SoldCount":334,
                "TodaySurplus":96,
                "ProductCommentRate":4,
                "BigImageUrl":null,
                "SmallImageUrl":null
            },
            {
                "Cost":"11.00",
                "Price":"11.00",
                "DefaultPrice":"11.00",
                "OriginalPrice":"50.00",
                "DayLimit":10,
                "ActivityId":null,
                "ActivityName":null,
                "StartTime":null,
                "SalesStrategyType":"Default",
                "CategoryId":7,
                "RootCategoryName":"全车打蜡",
                "RootCategoryId":2,
                "Description":"标准洗车、全车打蜡",
                "ProductName":"测试001",
                "PID":"FU-MD-QCDL-F|37",
                "PKID":114,
                "CategoryName":"全车打蜡",
                "EndTime":null,
                "SoldCount":82,
                "TodaySurplus":10,
                "ProductCommentRate":5,
                "BigImageUrl":null,
                "SmallImageUrl":null
            },
        ],
        "ShopDetail":{"Images":[ "https://img3.tuhu.org/Images/Marketing/Shops/f9c9/8ecc/182e30783031398cf89bee7d_w192_h192.png@600w_600h_100Q.png"
            ],
            "ShopCertification":640,
            "HeaderImage":"https://img4.tuhu.org/Images/Marketing/Shops/681be77a-a591-4425-bfec-3cf57181d51e.jpg@600w_600h_100Q.jpg",
            "ShopImages":[
               "https://img3.tuhu.org//Shop/ShopIntroPics/5c09/8974/8bcb8551fed1869b61abcdc5_w536_h300.jpg",
                "https://img3.tuhu.org//Shop/ShopIntroPics/d386/e4a4/c031b88a62f5ffefa0e8f28e_w192_h168.jpg"
            ]
        ]
    }
}

提取Data下的Beautify，判断如果名字为标准洗车，则提取价格

代码如下：

【】是array

{}是object

导入jar包

import org.json.JSONArray;
import org.json.JSONObject;

JSONObject jsonObject = new JSONObject(response_data);
        JSONObject result = jsonObject.getJSONObject("Data");
        JSONArray beautify = result.getJSONArray("Beautify");
        for (int i = 0 ; i<beautify.length() ; i++){
            JSONObject info = beautify.getJSONObject(i);
            String categoryName = info.getString("CategoryName");
            String price = info.getString("Price");
            if(categoryName.equals("标准洗车")){
                vars.put("Marketing_Price",price);
                break;