Jmeter之json条件提取实战（三）

有时我们想通过接口响应数据中的默写条件进行提取对应的字段，这时，就可以用到json条件提取，可以提取对应的值进行使用或迭代。

接口请求地址：

sh.lianjia.com/api/newhouserecommend?type=1&query=https%3A%2F%2Fsh.lianjia.com%2Fershoufang%2F%3Futm_source%3Dbaidu%26utm_medium%3Dpinzhuan%26utm_term%3Dbiaoti%26utm_content%3Dbiaotimiaoshu%26utm_campaign%3Dsousuo%26ljref%3Dpc_sem_baidu_ppzq_x

接口响应数据：

{
"errno": 0,
"uniq_id": "010A1A64181308FE356F0175ABDB6D34",
"data": [
{
"outlet_center_tel": "",
"cover_pic": "https:\/\/image1.ljcdn.com\/hdic-resblock\/prod-09d53f11-de84-4cdd-9fe9-e240310e985fphpnmDROp",
"project_name": "zxgcbjbjx",
"project_desc": "品质建筑交通便捷",
"bizcircle_id": "611100121",
"show_price_confirm_time": "0天",
"discount_realpay": "0",
"special_tag": "",
"resblock_alias": "春申大厦",
"price": "41000",
"checkin_start_date": null,
"id": "5020035843156409",
"min_frame_area": "0",
"decoration": "毛坯",
"carRatio": "1:",
"address_remark": "春申路3555号",
"allowance": "0",
"tags": [
],
"permit_all_ready": "1",
"has_virtual_view": "0",
"property_address": "",
"build_id": "5020035843156409",
"process_status": "3",
"full_spell": "zhongxuguangchang",
"evaluate": [
],

……

提取 "decoration": "毛坯"的所有resblock_alias值：

$..data[?(@.decoration=="毛坯")].resblock_alias

提取结果：

Result[0]=春申大厦
Result[1]=塘和家园栀子锦苑,樾山明月
Result[2]=龙茗路商铺
Result[3]=星月珂汇园

添加Json提取器提取（放置采样器下级）：

Variable names：test

JSONPath Expression：$..data[?(@.decoration=="毛坯")].resblock_alias

0随机；n取第几个匹配值；-1匹配所有，后续引用用变量名_N 取第N个值

Match Numbers：-1

添加debug采样器，查看提取结果：

JMeterVariables:
JMeterThread.last_sample_ok=true
JMeterThread.pack=org.apache.jmeter.threads.SamplePackage@77ed38c5
START.HMS=113707
START.MS=1577158627509
START.YMD=20191224
TESTSTART.MS=1577160022883
__jm__线程组__idx=0
__jmeter.U_T__=线程组 1-1
test_1=龙茗路商铺
test_2=春申大厦
test_3=塘和家园栀子锦苑,樾山明月
test_4=星月珂汇园
test_matchNr=4